1.1 --- a/.rootkeys	Mon Feb 24 16:55:07 2003 +0000
     1.2 +++ b/.rootkeys	Mon Feb 24 16:59:11 2003 +0000
     1.3 @@ -186,278 +186,278 @@ 3e4d0046aPbGiRTtdWxqY5b3ytWurA tools/dom
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     1.6  3e4d0046IBzDIeaMbQB-e2QB2ahbig tools/domain_builder/vifinit
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   1.365 +3e4540cczrrQVyyj-s1-viyX1kMUlA xen/drivers/net/e1000/e1000_hw.h
   1.366 +3e4540ccvQ9Dtoh9tV-L3ULUwN9X7g xen/drivers/net/e1000/e1000_main.c
   1.367 +3e4540cc3t7_y-YLeyMG2pX9xtdXPA xen/drivers/net/e1000/e1000_osdep.h
   1.368 +3e4540cct_8Ig-Y1W_vM2gS_u7mC0A xen/drivers/net/e1000/e1000_param.c
   1.369 +3e465c00t2nochqR27eEY_FBjxsUCw xen/drivers/net/ne/8390.c
   1.370 +3e465c00AIRmk20x1vYETtnL71eGvA xen/drivers/net/ne/8390.h
   1.371 +3e465c00UIvPTAtAcgcQWCVFa2bwww xen/drivers/net/ne/Makefile
   1.372 +3e465c00rWSHiXmHuOWLRf7r2n8S3g xen/drivers/net/ne/ne.c
   1.373 +3ddb79bfKvn9mt0kofpkw0QaWjxO6A xen/drivers/net/net_init.c
   1.374 +3ddb79bf_CBcu3QWYwq4bNAOnM2RqQ xen/drivers/net/setup.c
   1.375 +3e45a0c6u66EL2AI36eLOmf_abXs7g xen/drivers/net/tg3.c
   1.376 +3e45a0c6yrXj5pmQT0PvVSJ01YLABQ xen/drivers/net/tg3.h
   1.377 +3ddb79beUWngyIhMHgyPtuTem4o4JA xen/drivers/pci/Makefile
   1.378 +3ddb79beU9td0Mnm0VUMklerBa37qQ xen/drivers/pci/compat.c
   1.379 +3ddb79beHkGQE58z5t5gyUCYiwOxvw xen/drivers/pci/gen-devlist.c
   1.380 +3ddb79bfoQcFKLf5P6wZlDl36alWdQ xen/drivers/pci/names.c
   1.381 +3ddb79bfyX7-pD6XdxY_mdNrJR20iw xen/drivers/pci/pci.c
   1.382 +3ddb79bf2AS7YBGwooE_Kbv7XgUqNQ xen/drivers/pci/pci.ids
   1.383 +3ddb79bfGf5-CZSdzn0DGBYWjQiDjw xen/drivers/pci/proc.c
   1.384 +3ddb79bf7sTn85WtP_8Nc2YEmmVExQ xen/drivers/pci/quirks.c
   1.385 +3ddb79bfkVLMq5CWjZLACPDivqxq_w xen/drivers/pci/setup-bus.c
   1.386 +3ddb79bfl1H1arbB0pzAEC2uPmY_3g xen/drivers/pci/setup-irq.c
   1.387 +3ddb79bfJaf0bkE1Y67bnll8-kjEPg xen/drivers/pci/setup-res.c
   1.388 +3ddb79bfIcCWJsBDNcQQE3ok2Azn-Q xen/drivers/pci/syscall.c
   1.389 +3ddb79be3kwzyKagpMHGoXZFdan7dg xen/drivers/scsi/Makefile
   1.390 +3e564137sVLmo7rTnKLNzLSCvuUz8g xen/drivers/scsi/aacraid/Makefile
   1.391 +3e5641379FXvLDjV-0OrRNOBTwL_Lw xen/drivers/scsi/aacraid/README
   1.392 +3e564137MAHzHSRYoWGNmIferNjFVA xen/drivers/scsi/aacraid/TODO
   1.393 +3e564137QLUGVlcwTpnMYATKahDmCg xen/drivers/scsi/aacraid/aachba.c
   1.394 +3e564137Tm_t6rMYyxFtnY9yo_abMg xen/drivers/scsi/aacraid/aacraid.h
   1.395 +3e564137AtfQtRJZiS9B00To0AmKSg xen/drivers/scsi/aacraid/commctrl.c
   1.396 +3e564137a9aOGMOFgQ5CYQJBOD3DvQ xen/drivers/scsi/aacraid/comminit.c
   1.397 +3e564137fw_bPuKcvVi0qwntc_RB-Q xen/drivers/scsi/aacraid/commsup.c
   1.398 +3e564137iEHmY_e6xGZ7TLsjy5yS-g xen/drivers/scsi/aacraid/dpcsup.c
   1.399 +3e564137taxQbEVa39h3mEVLFxRydQ xen/drivers/scsi/aacraid/linit.c
   1.400 +3e564137vmALxpfK7vNINqEklSmQ1A xen/drivers/scsi/aacraid/rx.c
   1.401 +3e564137EuYUJgvqnOunPERWxnp_mw xen/drivers/scsi/aacraid/sa.c
   1.402 +3e56411aOLzeD5CRbuXquOrX0lRijw xen/drivers/scsi/constants.c
   1.403 +3ddb79beXZxwKh7cGyPfr40bhDyRrA xen/drivers/scsi/constants.h
   1.404 +3e564120ZeinH9nf3IVSerB80T7dHg xen/drivers/scsi/hosts.c
   1.405 +3ddb79beGiGljlTNq_kRnCBZECgC9Q xen/drivers/scsi/hosts.h
   1.406 +3ddb79bexarQo1tQ541PPUyK9HXNDA xen/drivers/scsi/scsi.c
   1.407 +3ddb79beBOiYxQUiWTHosepRlJyuGA xen/drivers/scsi/scsi.h
   1.408 +3ddb79beVTYJj6_KMxYLJmCP7p9MuQ xen/drivers/scsi/scsi_dma.c
   1.409 +3ddb79beDrImFCFGgB_GLgUbeuHjog xen/drivers/scsi/scsi_error.c
   1.410 +3ddb79bepDvUltYDsInaUsH9lII9Sw xen/drivers/scsi/scsi_ioctl.c
   1.411 +3ddb79berPStE_-ILQHgcl1BLDLywA xen/drivers/scsi/scsi_lib.c
   1.412 +3ddb79beRXjB7_nNUbJMIRyjDmeByQ xen/drivers/scsi/scsi_merge.c
   1.413 +3e56412a_O2cnz-e36volrKvofGe-Q xen/drivers/scsi/scsi_module.c.inc
   1.414 +3ddb79beQgG_st0eBZUX8AQI7kBkHA xen/drivers/scsi/scsi_obsolete.h
   1.415 +3ddb79beK65cNRldY0CFGXjZ3-A74Q xen/drivers/scsi/scsi_proc.c
   1.416 +3ddb79beeIuwGDE0Ldl8wy6mt86Bag xen/drivers/scsi/scsi_queue.c
   1.417 +3ddb79beQVxjXLLSY896cqce3j6Ehg xen/drivers/scsi/scsi_scan.c
   1.418 +3ddb79beVrSvakLg_9MSo22vJ_TGrA xen/drivers/scsi/scsi_syms.c
   1.419 +3ddb79beC6PIqDEaxAfO3bLKcmMLeA xen/drivers/scsi/scsicam.c
   1.420 +3ddb79bedAG8DPsr3S1N4IASxUuBug xen/drivers/scsi/sd.c
   1.421 +3ddb79beA27dAK0xtNh4k6SJniKnlA xen/drivers/scsi/sd.h
   1.422 +3ddb79c3l4IiQtf6MS2jIzcd-hJS8g xen/include/asm-i386/apic.h
   1.423 +3ddb79c3QJYWr8LLGdonLbWmNb9pQQ xen/include/asm-i386/apicdef.h
   1.424 +3ddb79c3OiG9eTsi9Dy3F_OkuRAzKA xen/include/asm-i386/atomic.h
   1.425 +3ddb79c3rM-Ote0Xn6Ytg8Y6YqAG-A xen/include/asm-i386/bitops.h
   1.426 +3ddb79c3pXaTAGGWSIZF9EnRV5PlRw xen/include/asm-i386/byteorder.h
   1.427 +3ddb79c3KhTI0F_Iw_hRL9QEyOVK-g xen/include/asm-i386/cache.h
   1.428 +3ddb79c2LLt11EQHjrd6sB7FUqvFfA xen/include/asm-i386/cpufeature.h
   1.429 +3ddb79c2ADvRmdexd9y3AYK9_NTx-Q xen/include/asm-i386/current.h
   1.430 +3ddb79c2jFkPAZTDmU35L6IUssYMgQ xen/include/asm-i386/debugreg.h
   1.431 +3ddb79c3r9-31dIsewPV3P3i8HALsQ xen/include/asm-i386/delay.h
   1.432 +3ddb79c34BFiXjBJ_cCKB0aCsV1IDw xen/include/asm-i386/desc.h
   1.433 +3e564149UkU91RX7onzpCAmbj_IFjw xen/include/asm-i386/dma.h
   1.434 +3e20b82fl1jmQiKdLy7fxMcutfpjWA xen/include/asm-i386/domain_page.h
   1.435 +3ddb79c2O729EttZTYu1c8LcsUO_GQ xen/include/asm-i386/elf.h
   1.436 +3ddb79c3NU8Zy40OTrq3D-i30Y3t4A xen/include/asm-i386/fixmap.h
   1.437 +3e2d29944GI24gf7vOP_7x8EyuqxeA xen/include/asm-i386/flushtlb.h
   1.438 +3ddb79c39o75zPP0T1aQQ4mNrCAN2w xen/include/asm-i386/hardirq.h
   1.439 +3ddb79c3BFEIwXR4IsWbwp4BoL4DkA xen/include/asm-i386/hdreg.h
   1.440 +3ddb79c3TMDjkxVndKFKnGiwY0HzDg xen/include/asm-i386/i387.h
   1.441 +3ddb79c3otbjpnqFDSzSeD0J-0xcwg xen/include/asm-i386/ide.h
   1.442 +3ddb79c3fQ_O3o5NHK2N8AJdk0Ea4Q xen/include/asm-i386/io.h
   1.443 +3ddb79c2TKeScYHQZreTdHqYNLbehQ xen/include/asm-i386/io_apic.h
   1.444 +3ddb79c3S9Tga4XZRPrD4-aN3XIV6w xen/include/asm-i386/ioctl.h
   1.445 +3ddb79c2L7rTlFzazOLW1XuSZefpFw xen/include/asm-i386/irq.h
   1.446 +3ddb79c3I98vWcQR8xEo34JMJ4Ahyw xen/include/asm-i386/mc146818rtc.h
   1.447 +3ddb79c3n_UbPuxlkNxvvLycClIkxA xen/include/asm-i386/mpspec.h
   1.448 +3ddb79c2wa0dA_LGigxOelSGbJ284Q xen/include/asm-i386/msr.h
   1.449 +3ddb79c3xjYnrv5t3VqYlR4tNEOl4Q xen/include/asm-i386/page.h
   1.450 +3e450943kzme29HPCtq5HNOVQkddfw xen/include/asm-i386/param.h
   1.451 +3ddb79c3ysKUbxZuwKBRK3WXU2TlEg xen/include/asm-i386/pci.h
   1.452 +3ddb79c3nm2zdzeO6Mj8g7ex3txgGw xen/include/asm-i386/pgalloc.h
   1.453 +3ddb79c2QF5-pZGzuX4QukPCDAl59A xen/include/asm-i386/processor.h
   1.454 +3ddb79c3mbqEM7QQr3zVq7NiBNhouA xen/include/asm-i386/ptrace.h
   1.455 +3ddb79c2plf7ciNgoNjU-RsbUzawsw xen/include/asm-i386/rwlock.h
   1.456 +3ddb79c2mJI9YuGMScjofPlD8EdtgA xen/include/asm-i386/scatterlist.h
   1.457 +3ddb79c3Hgbb2g8CyWLMCK-6_ZVQSQ xen/include/asm-i386/smp.h
   1.458 +3ddb79c3jn8ALV_S9W5aeTYUQRKBpg xen/include/asm-i386/smpboot.h
   1.459 +3ddb79c3e9DCEoR-WzNxcOQDzLu7BQ xen/include/asm-i386/softirq.h
   1.460 +3ddb79c3NiyQE2vQnyGiaBnNjBO1rA xen/include/asm-i386/spinlock.h
   1.461 +3ddb79c3ezddh34MdelJpa5tNR00Dw xen/include/asm-i386/system.h
   1.462 +3e397e66xPNc8eaSqC9pPbyAtRGzHA xen/include/asm-i386/time.h
   1.463 +3e450943TfE-iovQIY_tMO_VdGsPhA xen/include/asm-i386/timex.h
   1.464 +3ddb79c4HugMq7IYGxcQKFBpKwKhzA xen/include/asm-i386/types.h
   1.465 +3ddb79c3M2n1ROZH6xk3HbyN4CPDqg xen/include/asm-i386/uaccess.h
   1.466 +3ddb79c3uPGcP_l_2xyGgBSWd5aC-Q xen/include/asm-i386/unaligned.h
   1.467 +3ddb79c2YTaZwOqWin9-QNgHge5RVw xen/include/hypervisor-ifs/block.h
   1.468 +3ddb79c25UE59iu4JJcbRalx95mvcg xen/include/hypervisor-ifs/hypervisor-if.h
   1.469 +3ddb79c2oRPrzClk3zbTkRHlpumzKA xen/include/hypervisor-ifs/network.h
   1.470 +3ddb79c4qbCoOFHrv9sCGshbWzBVlQ xen/include/scsi/scsi.h
   1.471 +3ddb79c4R4iVwqIIeychVQYmIH4FUg xen/include/scsi/scsi_ioctl.h
   1.472 +3ddb79c4yw_mfd4Uikn3v_IOPRpa1Q xen/include/scsi/scsicam.h
   1.473 +3ddb79c4HKPMLvDBP9LxzPi_szVxGA xen/include/scsi/sg.h
   1.474 +3e450943xQztorJxTGW3BPZ4LhRHbw xen/include/stdarg.h
   1.475 +3e397e66m2tO3s-J8Jnr7Ws_tGoPTg xen/include/xeno/ac_timer.h
   1.476 +3ddb79c0nTsjSpVK4ZVTI9WwN24xtQ xen/include/xeno/blk.h
   1.477 +3ddb79c0dVhTHLsv6CPTf4baKix4mA xen/include/xeno/blkdev.h
   1.478 +3ddb79c18ePBgitnOs7GiOCFilODVw xen/include/xeno/blkpg.h
   1.479 +3ddb79c2SisDOHDyTeK5-MV3m7pNbA xen/include/xeno/block.h
   1.480 +3ddb79c1oOjpQbp68MW7yiUpoi-S-w xen/include/xeno/brlock.h
   1.481 +3ddb79c1x7Ie3kifu7dQRx8y7HVyvA xen/include/xeno/byteorder/big_endian.h
   1.482 +3ddb79c1qFXOEX1eD0yXJ_gsGkUt8w xen/include/xeno/byteorder/generic.h
   1.483 +3ddb79c1VbwFALNpgx6uC_iZKFHD-A xen/include/xeno/byteorder/little_endian.h
   1.484 +3ddb79c1VvNRMM35bpdZMekirCXP-A xen/include/xeno/byteorder/pdp_endian.h
   1.485 +3ddb79c116WbJV8bwGZXFFJy_GNNvw xen/include/xeno/byteorder/swab.h
   1.486 +3ddb79c1pwmlw8VXW8aaSKAVGVmjDA xen/include/xeno/byteorder/swabb.h
   1.487 +3ddb79c0c0cX_DZE209-Bb-Rx1v-Aw xen/include/xeno/cache.h
   1.488 +3ddb79c259jh8hE7vre_8NuE7nwNSA xen/include/xeno/config.h
   1.489 +3ddb79c1V44RD26YqCUm-kqIupM37A xen/include/xeno/ctype.h
   1.490 +3ddb79c05DdHQ0UxX_jKsXdR4QlMCA xen/include/xeno/delay.h
   1.491 +3ddb79c2PMeWTK86y4C3F4MzHw4A1g xen/include/xeno/dom0_ops.h
   1.492 +3ddb79c1uaWQZj551j1O0B5z8AnHOg xen/include/xeno/elevator.h
   1.493 +3ddb79c0HIghfBF8zFUdmXhOU8i6hA xen/include/xeno/errno.h
   1.494 +3ddb79c0rMjudDKkJku_mkm0J-BZgw xen/include/xeno/etherdevice.h
   1.495 +3ddb79c0T3X07lFnM9OSE-W5bqIDSQ xen/include/xeno/ethtool.h
   1.496 +3ddb79c1W0lQca8gRV7sN6j3iY4Luw xen/include/xeno/event.h
   1.497 +3ddb79c1J4I_AjNflZL-1c1jOIlSyg xen/include/xeno/genhd.h
   1.498 +3ddb79c1i-chIoeniqgYwMM3EgaR5w xen/include/xeno/hdreg.h
   1.499 +3ddb79c12GuUuaxBKiMuwf-Qvuwpng xen/include/xeno/hdsmart.h
   1.500 +3ddb79c0MM575N4YvMSiw9EqKH4JDA xen/include/xeno/ide.h
   1.501 +3ddb79c1yHLp08JhgPxIMcZ8DwN9hg xen/include/xeno/if.h
   1.502 +3ddb79c1RCWOkWPQRzbYVTX_e-E7CA xen/include/xeno/if_ether.h
   1.503 +3ddb79c2IYah7z7hkzPyOiG8szKkyw xen/include/xeno/if_packet.h
   1.504 +3e4540ccefnCkeqtD_dW_CBOjXUSYw xen/include/xeno/if_vlan.h
   1.505 +3df0af1c-QrOEqpPHq4uL3NZzCeJCg xen/include/xeno/in.h
   1.506 +3ddb79c0GurNF9tDWqQbAwJFH8ugfA xen/include/xeno/init.h
   1.507 +3ddb79c1Vi5VleJAOKHAlY0G2zAsgw xen/include/xeno/interrupt.h
   1.508 +3ddb79c2J6EnruiygRhBCgftzMzTeQ xen/include/xeno/ioctl.h
   1.509 +3ddb79c1nzaWu8NoF4xCCMSFJR4MlA xen/include/xeno/ioport.h
   1.510 +3ddb79c2qAxCOABlkKtD8Txohe-qEw xen/include/xeno/irq.h
   1.511 +3ddb79c2b3qe-6Ann09FqZBF4IrJaQ xen/include/xeno/irq_cpustat.h
   1.512 +3ddb79c11w_O7z7YZJnzuDSxaK5LlA xen/include/xeno/kdev_t.h
   1.513 +3e4540ccPHqIIv2pvnQ1gV8LUnoHIg xen/include/xeno/kernel.h
   1.514 +3e4cd9d8elj_7EgAs9Of56RQ2Yq_4g xen/include/xeno/keyhandler.h
   1.515 +3ddb79c1NfYlOrWNqgZkj9EwtFfJow xen/include/xeno/lib.h
   1.516 +3ddb79c18Ajy7micDGQQfJ0zWgEHtA xen/include/xeno/list.h
   1.517 +3ddb79c0_s2_wgV0cA6tztEaeyy1NA xen/include/xeno/major.h
   1.518 +3ddb79c1fsWuKI2sGlW5bqoG2lPVNA xen/include/xeno/mii.h
   1.519 +3ddb79c1gs2VbLbQlw0dcDUXYIepDA xen/include/xeno/mm.h
   1.520 +3ddb79c13p9iHn1XAp0IS1qvj4yDsg xen/include/xeno/module.h
   1.521 +3ddb79c1ieLZfGSFwfvvSQ2NK1BMSg xen/include/xeno/multiboot.h
   1.522 +3ddb79c0CLfAlJLg1ohdPD-Jjn-jxg xen/include/xeno/netdevice.h
   1.523 +3e4540ccaugeWGdOuphJKj6WFw1jkw xen/include/xeno/notifier.h
   1.524 +3ddb79c2Fg44_PBPVxHSC0gTOMq4Ow xen/include/xeno/pci.h
   1.525 +3ddb79c0MOVXq8qZDQRGb6z64_xAwg xen/include/xeno/pci_ids.h
   1.526 +3e54c38dlSCVdyVM4PKcrSfzLLxWUQ xen/include/xeno/perfc.h
   1.527 +3e54c38de9SUSYSAwxDf_DwkpAnQFA xen/include/xeno/perfc_defn.h
   1.528 +3ddb79c04nQVR3EYM5L4zxDV_MCo1g xen/include/xeno/prefetch.h
   1.529 +3e4540ccU1sgCx8seIMGlahmMfv7yQ xen/include/xeno/reboot.h
   1.530 +3ddb79c0LzqqS0LhAQ50ekgj4oGl7Q xen/include/xeno/sched.h
   1.531 +3ddb79c0VDeD-Oft5eNfMneTU3D1dQ xen/include/xeno/skbuff.h
   1.532 +3ddb79c14dXIhP7C2ahnoD08K90G_w xen/include/xeno/slab.h
   1.533 +3ddb79c09xbS-xxfKxuV3JETIhBzmg xen/include/xeno/smp.h
   1.534 +3ddb79c1-yIt89RT02wIPp2xDR8YjQ xen/include/xeno/socket.h
   1.535 +3ddb79c2V2P9F2xMCzDJ9vbUofSg_Q xen/include/xeno/sockios.h
   1.536 +3ddb79c2iIcESrDAB8samy_yAh6olQ xen/include/xeno/spinlock.h
   1.537 +3ddb79c0BnA20PbgmuMPSGIBljNRQw xen/include/xeno/time.h
   1.538 +3ddb79c2HFkXuRxi1CriJtSFmY6Ybw xen/include/xeno/timer.h
   1.539 +3ddb79c2_m8lT9jDKse_tePj7zcnNQ xen/include/xeno/timex.h
   1.540 +3ddb79c2e2C14HkndNEJlYwXaPrF5A xen/include/xeno/tqueue.h
   1.541 +3ddb79c1-kVvF8cVa0k3ZHDdBMj01Q xen/include/xeno/types.h
   1.542 +3ddb79c2Ae5KpzhC9LCYG7mP_Vi4Aw xen/include/xeno/vif.h
   1.543 +3ddb79c4YQCQ6r0xNLLu0jfbM7pVmA xen/net/Makefile
   1.544 +3ddb79c4AkfDkTCw0comx4L8wsUOMg xen/net/dev.c
   1.545 +3ddb79c4x1L_soh8b-r_1jQW_37Icw xen/net/dev_mcast.c
   1.546 +3ddb79c4KZhNxUuYJ7lul8cc-wRkyg xen/net/devinit.c
   1.547 +3ddb79c4NSDwiQ-AmrYdxcRAwLPzwQ xen/net/eth.c
   1.548 +3ddb79c4TZj1wXPKQt36O72SddtBNQ xen/net/skbuff.c
   1.549 +3ddb79c4x8dvwPtzclghWAKFWpEBFA xen/tools/Makefile
   1.550 +3ddb79c4yGZ7_22QAFFwPzqP4NSHwA xen/tools/elf-reloc.c
   1.551  3e5a4e6589G-U42lFKs43plskXoFxQ xenolinux-2.4.21-pre4-sparse/Makefile
   1.552  3e5a4e65IEPjnWPZ5w3TxS5scV8Ewg xenolinux-2.4.21-pre4-sparse/arch/xeno/Makefile
   1.553  3e5a4e65n-KhsEAs-A4ULiStBp-r6w xenolinux-2.4.21-pre4-sparse/arch/xeno/boot/Makefile

     2.1 --- a/xen-2.4.16/Makefile	Mon Feb 24 16:55:07 2003 +0000
     2.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.3 @@ -1,41 +0,0 @@
     2.4 -
     2.5 -export BASEDIR := $(shell pwd)
     2.6 -
     2.7 -include Rules.mk
     2.8 -
     2.9 -default: $(TARGET)
    2.10 -	gzip -f -9 < $(TARGET) > $(TARGET).gz
    2.11 -#	objdump -D -S image >image.s
    2.12 -
    2.13 -install: $(TARGET)
    2.14 -	gzip -f -9 < $(TARGET) > $(TARGET).gz
    2.15 -	cp $(TARGET).gz ../../install/images/image
    2.16 -
    2.17 -clean: delete-links
    2.18 -	$(MAKE) -C tools clean
    2.19 -	$(MAKE) -C common clean
    2.20 -	$(MAKE) -C net clean
    2.21 -	$(MAKE) -C drivers clean
    2.22 -	$(MAKE) -C arch/$(ARCH) clean
    2.23 -	rm -f *.o $(TARGET)* *~ core
    2.24 -
    2.25 -$(TARGET): make-links
    2.26 -	$(MAKE) -C tools
    2.27 -	$(MAKE) -C common
    2.28 -	$(MAKE) -C net
    2.29 -	$(MAKE) -C drivers
    2.30 -	$(MAKE) -C arch/$(ARCH)
    2.31 -
    2.32 -make-links:
    2.33 -	ln -sf xeno include/linux
    2.34 -	ln -sf asm-$(ARCH) include/asm
    2.35 -
    2.36 -delete-links:
    2.37 -	rm -f include/linux include/asm
    2.38 -
    2.39 -SUBDIRS         =arch common drivers net 
    2.40 -TAGS: 
    2.41 -	etags `find include/asm-$(ARCH) -name '*.h'`
    2.42 -	find include -type d \( -name "asm-*" -o -name config \) -prune -o -name '*.h' -print | xargs etags -a
    2.43 -	find $(SUBDIRS) -name '*.[ch]' | xargs etags -a
    2.44 -

     3.1 --- a/xen-2.4.16/README	Mon Feb 24 16:55:07 2003 +0000
     3.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.3 @@ -1,145 +0,0 @@
     3.4 -
     3.5 -*****************************************************
     3.6 -   Xeno Hypervisor (18/7/02)
     3.7 -
     3.8 -1) Tree layout
     3.9 -Looks rather like a simplified Linux :-)
    3.10 -Headers are in include/xeno and include asm-<arch>.
    3.11 -At build time we create symlinks:
    3.12 - include/linux -> include/xeno
    3.13 - include/asm   -> include/asm-<arch>
    3.14 -In this way, Linux device drivers should need less tweaking of
    3.15 -their #include lines.
    3.16 -
    3.17 -For source files, mapping between hypervisor and Linux is:
    3.18 - Linux                 Hypervisor
    3.19 - -----                 ----------
    3.20 - kernel/init/mm/lib -> common
    3.21 - net/*              -> net/*
    3.22 - drivers/*          -> drivers/*
    3.23 - arch/*             -> arch/*
    3.24 -
    3.25 -Note that the use of #include <asm/...> and #include <linux/...> can
    3.26 -lead to confusion, as such files will often exist on the system include
    3.27 -path, even if a version doesn't exist within the hypervisor tree.
    3.28 -Unfortunately '-nostdinc' cannot be specified to the compiler, as that
    3.29 -prevents us using stdarg.h in the compiler's own header directory.
    3.30 -
    3.31 -We try to not modify things in driver/* as much as possible, so we can
    3.32 -easily take updates from Linux. arch/* is basically straight from
    3.33 -Linux, with fingers in Linux-specific pies hacked off. common/* has
    3.34 -a lot of Linux code in it, but certain subsystems (task maintenance,
    3.35 -low-level memory handling) have been replaced. net/* contains enough
    3.36 -Linux-like gloop to get network drivers to work with little/no
    3.37 -modification.
    3.38 -
    3.39 -2) Building
    3.40 -'make': Builds ELF executable called 'image' in base directory
    3.41 -'make install': gzip-compresses 'image' and copies it to TFTP server
    3.42 -'make clean': removes *all* build and target files
    3.43 -
    3.44 -
    3.45 -*****************************************************
    3.46 -Random thoughts and stuff from here down...
    3.47 -
    3.48 -Todo list
    3.49 ----------
    3.50 -* Hypervisor need only directly map its own memory pool
    3.51 -  (maybe 128MB, tops). That would need 0x08000000....
    3.52 -  This would allow 512MB Linux with plenty room for vmalloc'ed areas.
    3.53 -* Network device -- port drivers to hypervisor, implement virtual
    3.54 -  driver for xeno-linux. Looks like Ethernet.
    3.55 -  -- Hypervisor needs to do (at a minimum):
    3.56 -       - packet filtering on tx (unicast IP only)
    3.57 -       - packet demux on rx     (unicast IP only)
    3.58 -       - provide DHCP [maybedo something simpler?]
    3.59 -         and ARP [at least for hypervisor IP address]
    3.60 -
    3.61 -
    3.62 -Segment descriptor tables
    3.63 --------------------------
    3.64 -We want to allow guest OSes to specify GDT and LDT tables using their
    3.65 -own pages of memory (just like with page tables). So allow the following:
    3.66 - * new_table_entry(ptr, val)
    3.67 -   [Allows insertion of a code, data, or LDT descriptor into given
    3.68 -    location. Can simply be checked then poked, with no need to look at
    3.69 -    page type.]
    3.70 - * new_GDT() -- relevent virtual pages are resolved to frames. Either
    3.71 -    (i) page not present; or (ii) page is only mapped read-only and checks
    3.72 -    out okay (then marked as special page). Old table is resolved first,
    3.73 -    and the pages are unmarked (no longer special type).
    3.74 - * new_LDT() -- same as for new_GDT(), with same special page type.
    3.75 -
    3.76 -Page table updates must be hooked, so we look for updates to virtual page
    3.77 -addresses in the GDT/LDT range. If map to not present, then old physpage
    3.78 -has type_count decremented. If map to present, ensure read-only, check the
    3.79 -page, and set special type.
    3.80 -
    3.81 -Merge set_{LDT,GDT} into update_baseptr, by passing four args:
    3.82 - update_baseptrs(mask, ptab, gdttab, ldttab);
    3.83 -Update of ptab requires update of gtab (or set to internal default).
    3.84 -Update of gtab requires update of ltab (or set to internal default).
    3.85 -
    3.86 -
    3.87 -The hypervisor page cache
    3.88 --------------------------
    3.89 -This will allow guest OSes to make use of spare pages in the system, but
    3.90 -allow them to be immediately used for any new domains or memory requests.
    3.91 -The idea is that, when a page is laundered and falls off Linux's clean_LRU
    3.92 -list, rather than freeing it it becomes a candidate for passing down into
    3.93 -the hypervisor. In return, xeno-linux may ask for one of its previously-
    3.94 -cached pages back:
    3.95 - (page, new_id) = cache_query(page, old_id);
    3.96 -If the requested page couldn't be kept, a blank page is returned.
    3.97 -When would Linux make the query? Whenever it wants a page back without
    3.98 -the delay or going to disc. Also, whenever a page would otherwise be
    3.99 -flushed to disc.
   3.100 -
   3.101 -To try and add to the cache: (blank_page, new_id) = cache_query(page, NULL);
   3.102 - [NULL means "give me a blank page"].
   3.103 -To try and retrieve from the cache: (page, new_id) = cache_query(x_page, id)
   3.104 - [we may request that x_page just be discarded, and therefore not impinge
   3.105 -  on this domain's cache quota].
   3.106 -
   3.107 -
   3.108 -Booting secondary processors
   3.109 -----------------------------
   3.110 -
   3.111 -start_of_day (i386/setup.c)
   3.112 -smp_boot_cpus (i386/smpboot.c)
   3.113 - * initialises boot CPU data
   3.114 - * parses APIC tables
   3.115 - * for each cpu:
   3.116 -   do_boot_cpu (i386/smpboot.c)
   3.117 -    * forks a new idle process
   3.118 -    * points initial stack inside new task struct
   3.119 -    * points initial EIP at a trampoline in very low memory
   3.120 -    * frobs remote APIC....
   3.121 -
   3.122 -On other processor:
   3.123 - * trampoline sets GDT and IDT
   3.124 - * jumps at main boot address with magic register value
   3.125 - * after setting proper page and descriptor tables, jumps at...
   3.126 -   initialize_secondary (i386/smpboot.c)
   3.127 -    * simply reads ESP/EIP out of the (new) idle task
   3.128 -    * this causes a jump to...
   3.129 -      start_secondary (i386/smpboot.c)
   3.130 -       * reset all processor state
   3.131 -       * barrier, then write bitmasks to signal back to boot cpu
   3.132 -       * then barrel into...
   3.133 -         cpu_idle (i386/process.c)
   3.134 -         [THIS IS PROBABLY REASONABLE -- BOOT CPU SHOULD KICK
   3.135 -          SECONDARIES TO GET WORK DONE]
   3.136 -
   3.137 -
   3.138 -SMP capabilities
   3.139 -----------------
   3.140 -
   3.141 -Current intention is to allow hypervisor to schedule on all processors in
   3.142 -SMP boxen, but to tie each domain to a single processor. This simplifies
   3.143 -many SMP intricacies both in terms of correctness and efficiency (eg.
   3.144 -TLB flushing, network packet delivery, ...).
   3.145 -
   3.146 -Clients can still make use of SMP by installing multiple domains on a single
   3.147 -machine, and treating it as a fast cluster (at the very least, the
   3.148 -hypervisor will have fast routing of locally-destined packets).

     4.1 --- a/xen-2.4.16/Rules.mk	Mon Feb 24 16:55:07 2003 +0000
     4.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     4.3 @@ -1,36 +0,0 @@
     4.4 -
     4.5 -ARCH    := i386
     4.6 -
     4.7 -TARGET  := $(BASEDIR)/image
     4.8 -HDRS    := $(wildcard $(BASEDIR)/include/xeno/*.h)
     4.9 -HDRS    += $(wildcard $(BASEDIR)/include/scsi/*.h)
    4.10 -HDRS    += $(wildcard $(BASEDIR)/include/hypervisor-ifs/*.h)
    4.11 -HDRS    += $(wildcard $(BASEDIR)/include/asm-$(ARCH)/*.h)
    4.12 -
    4.13 -C_SRCS  := $(wildcard *.c)
    4.14 -S_SRCS  := $(wildcard *.S)
    4.15 -OBJS    := $(patsubst %.S,%.o,$(S_SRCS))
    4.16 -OBJS    += $(patsubst %.c,%.o,$(C_SRCS))
    4.17 -
    4.18 -# Note that link order matters!
    4.19 -ALL_OBJS := $(BASEDIR)/common/common.o
    4.20 -ALL_OBJS += $(BASEDIR)/net/network.o
    4.21 -ALL_OBJS += $(BASEDIR)/drivers/char/driver.o
    4.22 -ALL_OBJS += $(BASEDIR)/drivers/pci/driver.o
    4.23 -ALL_OBJS += $(BASEDIR)/drivers/net/driver.o
    4.24 -ALL_OBJS += $(BASEDIR)/drivers/block/driver.o
    4.25 -ALL_OBJS += $(BASEDIR)/drivers/ide/driver.o
    4.26 -#ALL_OBJS += $(BASEDIR)/drivers/scsi/driver.o
    4.27 -ALL_OBJS += $(BASEDIR)/arch/$(ARCH)/arch.o
    4.28 -
    4.29 -HOSTCC     = gcc
    4.30 -HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 
    4.31 -
    4.32 -include $(BASEDIR)/arch/$(ARCH)/Rules.mk
    4.33 -
    4.34 -%.o: %.c $(HDRS) Makefile
    4.35 -	$(CC) -g $(CFLAGS) -c $< -o $@
    4.36 -
    4.37 -%.o: %.S $(HDRS) Makefile
    4.38 -	$(CC) $(CFLAGS) -D__ASSEMBLY__ -c $< -o $@
    4.39 -

     5.1 --- a/xen-2.4.16/arch/i386/Makefile	Mon Feb 24 16:55:07 2003 +0000
     5.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     5.3 @@ -1,17 +0,0 @@
     5.4 -
     5.5 -include $(BASEDIR)/Rules.mk
     5.6 -
     5.7 -# What happens here? We link monitor object files together, starting
     5.8 -# at MONITOR_BASE (a very high address). But bootloader cannot put
     5.9 -# things there, so we initially load at LOAD_BASE. A hacky little
    5.10 -# tool called `elf-reloc' is used to modify segment offsets from
    5.11 -# MONITOR_BASE-relative to LOAD_BASE-relative.
    5.12 -# (NB. Linux gets round this by turning its image into raw binary, then 
    5.13 -# wrapping that with a low-memory bootstrapper.)
    5.14 -default: boot/boot.o $(OBJS)
    5.15 -	$(LD) -r -o arch.o $(OBJS)
    5.16 -	$(LD) $(LDFLAGS) boot/boot.o $(ALL_OBJS) -o $(TARGET)
    5.17 -	$(BASEDIR)/tools/elf-reloc $(MONITOR_BASE) $(LOAD_BASE) $(TARGET)
    5.18 -
    5.19 -clean:
    5.20 -	rm -f *.o *~ core boot/*.o boot/*~ boot/core

     6.1 --- a/xen-2.4.16/arch/i386/Rules.mk	Mon Feb 24 16:55:07 2003 +0000
     6.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     6.3 @@ -1,14 +0,0 @@
     6.4 -########################################
     6.5 -# x86-specific definitions
     6.6 -
     6.7 -CC := gcc
     6.8 -LD := ld
     6.9 -# Linker should relocate monitor to this address
    6.10 -MONITOR_BASE := 0xFC500000
    6.11 -# Bootloader should load monitor to this real address
    6.12 -LOAD_BASE    := 0x00100000
    6.13 -CFLAGS  := -nostdinc -fno-builtin -O3 -Wall -DMONITOR_BASE=$(MONITOR_BASE) 
    6.14 -CFLAGS  += -fomit-frame-pointer -I$(BASEDIR)/include -D__KERNEL__ -DNDEBUG
    6.15 -LDFLAGS := -T xeno.lds -N
    6.16 -
    6.17 -

     7.1 --- a/xen-2.4.16/arch/i386/acpitable.c	Mon Feb 24 16:55:07 2003 +0000
     7.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     7.3 @@ -1,549 +0,0 @@
     7.4 -/*
     7.5 - *  acpitable.c - IA32-specific ACPI boot-time initialization (Revision: 1)
     7.6 - *
     7.7 - *  Copyright (C) 1999 Andrew Henroid
     7.8 - *  Copyright (C) 2001 Richard Schaal
     7.9 - *  Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
    7.10 - *  Copyright (C) 2001 Jun Nakajima <jun.nakajima@intel.com>
    7.11 - *  Copyright (C) 2001 Arjan van de Ven <arjanv@redhat.com>
    7.12 - *
    7.13 - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    7.14 - *
    7.15 - *  This program is free software; you can redistribute it and/or modify
    7.16 - *  it under the terms of the GNU General Public License as published by
    7.17 - *  the Free Software Foundation; either version 2 of the License, or
    7.18 - *  (at your option) any later version.
    7.19 - *
    7.20 - *  This program is distributed in the hope that it will be useful,
    7.21 - *  but WITHOUT ANY WARRANTY; without even the implied warranty of
    7.22 - *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    7.23 - *  GNU General Public License for more details.
    7.24 - *
    7.25 - *  You should have received a copy of the GNU General Public License
    7.26 - *  along with this program; if not, write to the Free Software
    7.27 - *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    7.28 - *
    7.29 - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    7.30 - *
    7.31 - * $Id: acpitable.c,v 1.7 2001/11/04 12:21:18 fenrus Exp $
    7.32 - */
    7.33 -#include <xeno/config.h>
    7.34 -#include <xeno/kernel.h>
    7.35 -#include <xeno/init.h>
    7.36 -#include <xeno/types.h>
    7.37 -/*#include <xeno/stddef.h>*/
    7.38 -#include <xeno/slab.h>
    7.39 -#include <xeno/pci.h>
    7.40 -#include <asm/mpspec.h>
    7.41 -#include <asm/io.h>
    7.42 -#include <asm/apic.h>
    7.43 -#include <asm/apicdef.h>
    7.44 -#include <asm/page.h>
    7.45 -/*#include <asm/pgtable.h>*/
    7.46 -
    7.47 -#include "acpitable.h"
    7.48 -
    7.49 -static acpi_table_handler acpi_boot_ops[ACPI_TABLE_COUNT];
    7.50 -
    7.51 -
    7.52 -static unsigned char __init
    7.53 -acpi_checksum(void *buffer, int length)
    7.54 -{
    7.55 -	int i;
    7.56 -	unsigned char *bytebuffer;
    7.57 -	unsigned char sum = 0;
    7.58 -
    7.59 -	if (!buffer || length <= 0)
    7.60 -		return 0;
    7.61 -
    7.62 -	bytebuffer = (unsigned char *) buffer;
    7.63 -
    7.64 -	for (i = 0; i < length; i++)
    7.65 -		sum += *(bytebuffer++);
    7.66 -
    7.67 -	return sum;
    7.68 -}
    7.69 -
    7.70 -static void __init
    7.71 -acpi_print_table_header(acpi_table_header * header)
    7.72 -{
    7.73 -	if (!header)
    7.74 -		return;
    7.75 -
    7.76 -	printk(KERN_INFO "ACPI table found: %.4s v%d [%.6s %.8s %d.%d]\n",
    7.77 -	       header->signature, header->revision, header->oem_id,
    7.78 -	       header->oem_table_id, header->oem_revision >> 16,
    7.79 -	       header->oem_revision & 0xffff);
    7.80 -
    7.81 -	return;
    7.82 -}
    7.83 -
    7.84 -/*******************************************************************************
    7.85 - *
    7.86 - * FUNCTION:    acpi_tb_scan_memory_for_rsdp
    7.87 - *
    7.88 - * PARAMETERS:  address       - Starting pointer for search
    7.89 - *              length        - Maximum length to search
    7.90 - *
    7.91 - * RETURN:      Pointer to the RSDP if found and valid, otherwise NULL.
    7.92 - *
    7.93 - * DESCRIPTION: Search a block of memory for the RSDP signature
    7.94 - *
    7.95 - ******************************************************************************/
    7.96 -
    7.97 -static void *__init
    7.98 -acpi_tb_scan_memory_for_rsdp(void *address, int length)
    7.99 -{
   7.100 -	u32 offset;
   7.101 -
   7.102 -	if (length <= 0)
   7.103 -		return NULL;
   7.104 -
   7.105 -	/* Search from given start addr for the requested length  */
   7.106 -
   7.107 -	offset = 0;
   7.108 -
   7.109 -	while (offset < length) {
   7.110 -		/* The signature must match and the checksum must be correct */
   7.111 -		if (strncmp(address, RSDP_SIG, sizeof(RSDP_SIG) - 1) == 0 &&
   7.112 -		    acpi_checksum(address, RSDP_CHECKSUM_LENGTH) == 0) {
   7.113 -			/* If so, we have found the RSDP */
   7.114 -			printk(KERN_INFO "ACPI: RSDP located at physical address %p\n",
   7.115 -			       address);
   7.116 -			return address;
   7.117 -		}
   7.118 -		offset += RSDP_SCAN_STEP;
   7.119 -		address += RSDP_SCAN_STEP;
   7.120 -	}
   7.121 -
   7.122 -	/* Searched entire block, no RSDP was found */
   7.123 -	printk(KERN_INFO "ACPI: Searched entire block, no RSDP was found.\n");
   7.124 -	return NULL;
   7.125 -}
   7.126 -
   7.127 -/*******************************************************************************
   7.128 - *
   7.129 - * FUNCTION:    acpi_find_root_pointer
   7.130 - *
   7.131 - * PARAMETERS:  none
   7.132 - *
   7.133 - * RETURN:      physical address of the RSDP 
   7.134 - *
   7.135 - * DESCRIPTION: Search lower 1_mbyte of memory for the root system descriptor
   7.136 - *              pointer structure.  If it is found, set *RSDP to point to it.
   7.137 - *
   7.138 - *              NOTE: The RSDP must be either in the first 1_k of the Extended
   7.139 - *              BIOS Data Area or between E0000 and FFFFF (ACPI 1.0 section
   7.140 - *              5.2.2; assertion #421).
   7.141 - *
   7.142 - ******************************************************************************/
   7.143 -
   7.144 -static struct acpi_table_rsdp * __init
   7.145 -acpi_find_root_pointer(void)
   7.146 -{
   7.147 -	struct acpi_table_rsdp * rsdp;
   7.148 -
   7.149 -	/*
   7.150 -	 * Physical address is given
   7.151 -	 */
   7.152 -	/*
   7.153 -	 * Region 1) Search EBDA (low memory) paragraphs
   7.154 -	 */
   7.155 -	rsdp = acpi_tb_scan_memory_for_rsdp(__va(LO_RSDP_WINDOW_BASE),
   7.156 -					 LO_RSDP_WINDOW_SIZE);
   7.157 -
   7.158 -	if (rsdp)
   7.159 -		return rsdp;
   7.160 -
   7.161 -	/*
   7.162 -	 * Region 2) Search upper memory: 16-byte boundaries in E0000h-F0000h
   7.163 -	 */
   7.164 -	rsdp = acpi_tb_scan_memory_for_rsdp(__va(HI_RSDP_WINDOW_BASE),
   7.165 -					       HI_RSDP_WINDOW_SIZE);
   7.166 -
   7.167 -	
   7.168 -					     
   7.169 -	if (rsdp)
   7.170 -		return rsdp;
   7.171 -
   7.172 -	printk(KERN_ERR "ACPI: System description tables not found\n");
   7.173 -	return NULL;
   7.174 -}
   7.175 -
   7.176 -
   7.177 -/*
   7.178 - * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END,
   7.179 - * to map the target physical address. The problem is that set_fixmap()
   7.180 - * provides a single page, and it is possible that the page is not
   7.181 - * sufficient.
   7.182 - * By using this area, we can map up to MAX_IO_APICS pages temporarily,
   7.183 - * i.e. until the next __va_range() call.
   7.184 - *
   7.185 - * Important Safety Note:  The fixed I/O APIC page numbers are *subtracted*
   7.186 - * from the fixed base.  That's why we start at FIX_IO_APIC_BASE_END and
   7.187 - * count idx down while incrementing the phys address.
   7.188 - */
   7.189 -static __init char *
   7.190 -__va_range(unsigned long phys, unsigned long size)
   7.191 -{
   7.192 -	unsigned long base, offset, mapped_size;
   7.193 -	int idx;
   7.194 -
   7.195 -	offset = phys & (PAGE_SIZE - 1);
   7.196 -	mapped_size = PAGE_SIZE - offset;
   7.197 -	set_fixmap(FIX_IO_APIC_BASE_END, phys);
   7.198 -	base = fix_to_virt(FIX_IO_APIC_BASE_END);
   7.199 -	dprintk("__va_range(0x%lx, 0x%lx): idx=%d mapped at %lx\n", phys, size,
   7.200 -		FIX_IO_APIC_BASE_END, base);
   7.201 -
   7.202 -	/*
   7.203 -	 * Most cases can be covered by the below.
   7.204 -	 */
   7.205 -	idx = FIX_IO_APIC_BASE_END;
   7.206 -	while (mapped_size < size) {
   7.207 -		if (--idx < FIX_IO_APIC_BASE_0)
   7.208 -			return 0;	/* cannot handle this */
   7.209 -		phys += PAGE_SIZE;
   7.210 -		set_fixmap(idx, phys);
   7.211 -		mapped_size += PAGE_SIZE;
   7.212 -	}
   7.213 -
   7.214 -	return ((unsigned char *) base + offset);
   7.215 -}
   7.216 -
   7.217 -static int __init acpi_tables_init(void)
   7.218 -{
   7.219 -	int result = -ENODEV;
   7.220 -	acpi_table_header *header = NULL;
   7.221 -	struct acpi_table_rsdp *rsdp = NULL;
   7.222 -	struct acpi_table_rsdt *rsdt = NULL;
   7.223 -	struct acpi_table_rsdt saved_rsdt;
   7.224 -	int tables = 0;
   7.225 -	int type = 0;
   7.226 -	int i = 0;
   7.227 -
   7.228 -
   7.229 -	rsdp = (struct acpi_table_rsdp *) acpi_find_root_pointer();
   7.230 -
   7.231 -	if (!rsdp)
   7.232 -		return -ENODEV;
   7.233 -		
   7.234 -	printk(KERN_INFO "%.8s v%d [%.6s]\n", rsdp->signature, rsdp->revision,
   7.235 -	       rsdp->oem_id);
   7.236 -	       
   7.237 -	if (strncmp(rsdp->signature, RSDP_SIG,strlen(RSDP_SIG))) {
   7.238 -		printk(KERN_WARNING "RSDP table signature incorrect\n");
   7.239 -		return -EINVAL;
   7.240 -	}
   7.241 -
   7.242 -	rsdt = (struct acpi_table_rsdt *)
   7.243 -	    __va_range(rsdp->rsdt_address, sizeof(struct acpi_table_rsdt));
   7.244 -
   7.245 -	if (!rsdt) {
   7.246 -		printk(KERN_WARNING "ACPI: Invalid root system description tables (RSDT)\n");
   7.247 -		return -ENODEV;
   7.248 -	}
   7.249 -	
   7.250 -	header = & rsdt->header;
   7.251 -	acpi_print_table_header(header);
   7.252 -	
   7.253 -	if (strncmp(header->signature, RSDT_SIG, strlen(RSDT_SIG))) {
   7.254 -		printk(KERN_WARNING "ACPI: RSDT signature incorrect\n");
   7.255 -		return -ENODEV;
   7.256 -	}
   7.257 -		
   7.258 -	/* 
   7.259 -	 * The number of tables is computed by taking the 
   7.260 -	 * size of all entries (header size minus total 
   7.261 -	 * size of RSDT) divided by the size of each entry
   7.262 -	 * (4-byte table pointers).
   7.263 -	 */
   7.264 -	tables = (header->length - sizeof(acpi_table_header)) / 4;
   7.265 -		    
   7.266 -	memcpy(&saved_rsdt, rsdt, sizeof(saved_rsdt));
   7.267 -
   7.268 -	if (saved_rsdt.header.length > sizeof(saved_rsdt)) {
   7.269 -		printk(KERN_WARNING "ACPI: Too big length in RSDT: %d\n", saved_rsdt.header.length);
   7.270 -		return -ENODEV;
   7.271 -	}
   7.272 -
   7.273 -	for (i = 0; i < tables; i++) {
   7.274 -		/* Map in header, then map in full table length. */
   7.275 -		header = (acpi_table_header *)
   7.276 -			    __va_range(saved_rsdt.entry[i],
   7.277 -				       sizeof(acpi_table_header));
   7.278 -		if (!header)
   7.279 -			break;
   7.280 -		header = (acpi_table_header *)
   7.281 -			    __va_range(saved_rsdt.entry[i], header->length);
   7.282 -		if (!header)
   7.283 -			break;
   7.284 -
   7.285 -		acpi_print_table_header(header);
   7.286 -		
   7.287 -		if (acpi_checksum(header,header->length)) {
   7.288 -			printk(KERN_WARNING "ACPI %s has invalid checksum\n", 
   7.289 -				acpi_table_signatures[i]);
   7.290 -			continue;
   7.291 -		}
   7.292 -		
   7.293 -		for (type = 0; type < ACPI_TABLE_COUNT; type++)
   7.294 -			if (!strncmp((char *) &header->signature,
   7.295 -			     acpi_table_signatures[type],strlen(acpi_table_signatures[type])))
   7.296 -				break;
   7.297 -
   7.298 -		if (type >= ACPI_TABLE_COUNT) {
   7.299 -			printk(KERN_WARNING "ACPI: Unsupported table %.4s\n",
   7.300 -			       header->signature);
   7.301 -			continue;
   7.302 -		}
   7.303 -
   7.304 -
   7.305 -		if (!acpi_boot_ops[type])
   7.306 -			continue;
   7.307 -			
   7.308 -		result = acpi_boot_ops[type] (header,
   7.309 -						 (unsigned long) saved_rsdt.
   7.310 -						 entry[i]);
   7.311 -	}
   7.312 -
   7.313 -	return result;
   7.314 -}
   7.315 -
   7.316 -static int total_cpus __initdata = 0;
   7.317 -int have_acpi_tables;
   7.318 -
   7.319 -extern void __init MP_processor_info(struct mpc_config_processor *);
   7.320 -
   7.321 -static void __init
   7.322 -acpi_parse_lapic(struct acpi_table_lapic *local_apic)
   7.323 -{
   7.324 -	struct mpc_config_processor proc_entry;
   7.325 -	int ix = 0;
   7.326 -
   7.327 -	if (!local_apic)
   7.328 -		return;
   7.329 -
   7.330 -	printk(KERN_INFO "LAPIC (acpi_id[0x%04x] id[0x%x] enabled[%d])\n",
   7.331 -		local_apic->acpi_id, local_apic->id, local_apic->flags.enabled);
   7.332 -
   7.333 -	printk(KERN_INFO "CPU %d (0x%02x00)", total_cpus, local_apic->id);
   7.334 -
   7.335 -	if (local_apic->flags.enabled) {
   7.336 -		printk(" enabled");
   7.337 -		ix = local_apic->id;
   7.338 -		if (ix >= MAX_APICS) {
   7.339 -			printk(KERN_WARNING
   7.340 -			       "Processor #%d INVALID - (Max ID: %d).\n", ix,
   7.341 -			       MAX_APICS);
   7.342 -			return;
   7.343 -		}
   7.344 -		/* 
   7.345 -		 * Fill in the info we want to save.  Not concerned about 
   7.346 -		 * the processor ID.  Processor features aren't present in 
   7.347 -		 * the table.
   7.348 -		 */
   7.349 -		proc_entry.mpc_type = MP_PROCESSOR;
   7.350 -		proc_entry.mpc_apicid = local_apic->id;
   7.351 -		proc_entry.mpc_cpuflag = CPU_ENABLED;
   7.352 -		if (proc_entry.mpc_apicid == boot_cpu_physical_apicid) {
   7.353 -			printk(" (BSP)");
   7.354 -			proc_entry.mpc_cpuflag |= CPU_BOOTPROCESSOR;
   7.355 -		}
   7.356 -		proc_entry.mpc_cpufeature =
   7.357 -		    (boot_cpu_data.x86 << 8) | 
   7.358 -		    (boot_cpu_data.x86_model << 4) | 
   7.359 -		     boot_cpu_data.x86_mask;
   7.360 -		proc_entry.mpc_featureflag = boot_cpu_data.x86_capability[0];
   7.361 -		proc_entry.mpc_reserved[0] = 0;
   7.362 -		proc_entry.mpc_reserved[1] = 0;
   7.363 -		proc_entry.mpc_apicver = 0x10;	/* integrated APIC */
   7.364 -		MP_processor_info(&proc_entry);
   7.365 -	} else {
   7.366 -		printk(" disabled");
   7.367 -	}
   7.368 -	printk("\n");
   7.369 -
   7.370 -	total_cpus++;
   7.371 -	return;
   7.372 -}
   7.373 -
   7.374 -static void __init
   7.375 -acpi_parse_ioapic(struct acpi_table_ioapic *ioapic)
   7.376 -{
   7.377 -
   7.378 -	if (!ioapic)
   7.379 -		return;
   7.380 -
   7.381 -	printk(KERN_INFO
   7.382 -	       "IOAPIC (id[0x%x] address[0x%x] global_irq_base[0x%x])\n",
   7.383 -	       ioapic->id, ioapic->address, ioapic->global_irq_base);
   7.384 -
   7.385 -	if (nr_ioapics >= MAX_IO_APICS) {
   7.386 -		printk(KERN_WARNING
   7.387 -		       "Max # of I/O APICs (%d) exceeded (found %d).\n",
   7.388 -		       MAX_IO_APICS, nr_ioapics);
   7.389 -/*		panic("Recompile kernel with bigger MAX_IO_APICS!\n");   */
   7.390 -	}
   7.391 -}
   7.392 -
   7.393 -
   7.394 -/* Interrupt source overrides inform the machine about exceptions
   7.395 -   to the normal "PIC" mode interrupt routing */
   7.396 -   
   7.397 -static void __init
   7.398 -acpi_parse_int_src_ovr(struct acpi_table_int_src_ovr *intsrc)
   7.399 -{
   7.400 -	if (!intsrc)
   7.401 -		return;
   7.402 -
   7.403 -	printk(KERN_INFO
   7.404 -	       "INT_SRC_OVR (bus[%d] irq[0x%x] global_irq[0x%x] polarity[0x%x] trigger[0x%x])\n",
   7.405 -	       intsrc->bus, intsrc->bus_irq, intsrc->global_irq,
   7.406 -	       intsrc->flags.polarity, intsrc->flags.trigger);
   7.407 -}
   7.408 -
   7.409 -/*
   7.410 - * At this point, we look at the interrupt assignment entries in the MPS
   7.411 - * table.
   7.412 - */ 
   7.413 - 
   7.414 -static void __init acpi_parse_nmi_src(struct acpi_table_nmi_src *nmisrc)
   7.415 -{
   7.416 -	if (!nmisrc)
   7.417 -		return;
   7.418 -
   7.419 -	printk(KERN_INFO
   7.420 -	       "NMI_SRC (polarity[0x%x] trigger[0x%x] global_irq[0x%x])\n",
   7.421 -	       nmisrc->flags.polarity, nmisrc->flags.trigger,
   7.422 -	       nmisrc->global_irq);
   7.423 -
   7.424 -}
   7.425 -static void __init
   7.426 -acpi_parse_lapic_nmi(struct acpi_table_lapic_nmi *localnmi)
   7.427 -{
   7.428 -	if (!localnmi)
   7.429 -		return;
   7.430 -
   7.431 -	printk(KERN_INFO
   7.432 -	       "LAPIC_NMI (acpi_id[0x%04x] polarity[0x%x] trigger[0x%x] lint[0x%x])\n",
   7.433 -	       localnmi->acpi_id, localnmi->flags.polarity,
   7.434 -	       localnmi->flags.trigger, localnmi->lint);
   7.435 -}
   7.436 -static void __init
   7.437 -acpi_parse_lapic_addr_ovr(struct acpi_table_lapic_addr_ovr *lapic_addr_ovr)
   7.438 -{
   7.439 -	if (!lapic_addr_ovr)
   7.440 -		return;
   7.441 -
   7.442 -	printk(KERN_INFO "LAPIC_ADDR_OVR (address[0x%lx])\n",
   7.443 -	       (unsigned long) lapic_addr_ovr->address);
   7.444 -
   7.445 -}
   7.446 -
   7.447 -static void __init
   7.448 -acpi_parse_plat_int_src(struct acpi_table_plat_int_src *plintsrc)
   7.449 -{
   7.450 -	if (!plintsrc)
   7.451 -		return;
   7.452 -
   7.453 -	printk(KERN_INFO
   7.454 -	       "PLAT_INT_SRC (polarity[0x%x] trigger[0x%x] type[0x%x] id[0x%04x] eid[0x%x] iosapic_vector[0x%x] global_irq[0x%x]\n",
   7.455 -	       plintsrc->flags.polarity, plintsrc->flags.trigger,
   7.456 -	       plintsrc->type, plintsrc->id, plintsrc->eid,
   7.457 -	       plintsrc->iosapic_vector, plintsrc->global_irq);
   7.458 -}
   7.459 -static int __init
   7.460 -acpi_parse_madt(acpi_table_header * header, unsigned long phys)
   7.461 -{
   7.462 -
   7.463 -	struct acpi_table_madt *madt;	    
   7.464 -	acpi_madt_entry_header *entry_header;
   7.465 -	int table_size;
   7.466 -	
   7.467 -	madt = (struct acpi_table_madt *) __va_range(phys, header->length);
   7.468 -
   7.469 -	if (!madt)
   7.470 -		return -EINVAL;
   7.471 -
   7.472 -	table_size = (int) (header->length - sizeof(*madt));
   7.473 -	entry_header =
   7.474 -	    (acpi_madt_entry_header *) ((void *) madt + sizeof(*madt));
   7.475 -
   7.476 -	while (entry_header && (table_size > 0)) {
   7.477 -		switch (entry_header->type) {
   7.478 -		case ACPI_MADT_LAPIC:
   7.479 -			acpi_parse_lapic((struct acpi_table_lapic *)
   7.480 -					 entry_header);
   7.481 -			break;
   7.482 -		case ACPI_MADT_IOAPIC:
   7.483 -			acpi_parse_ioapic((struct acpi_table_ioapic *)
   7.484 -					  entry_header);
   7.485 -			break;
   7.486 -		case ACPI_MADT_INT_SRC_OVR:
   7.487 -			acpi_parse_int_src_ovr((struct acpi_table_int_src_ovr *)
   7.488 -					       entry_header);
   7.489 -			break;
   7.490 -		case ACPI_MADT_NMI_SRC:
   7.491 -			acpi_parse_nmi_src((struct acpi_table_nmi_src *)
   7.492 -					   entry_header);
   7.493 -			break;
   7.494 -		case ACPI_MADT_LAPIC_NMI:
   7.495 -			acpi_parse_lapic_nmi((struct acpi_table_lapic_nmi *)
   7.496 -					     entry_header);
   7.497 -			break;
   7.498 -		case ACPI_MADT_LAPIC_ADDR_OVR:
   7.499 -			acpi_parse_lapic_addr_ovr((struct
   7.500 -						   acpi_table_lapic_addr_ovr *)
   7.501 -						  entry_header);
   7.502 -			break;
   7.503 -		case ACPI_MADT_PLAT_INT_SRC:
   7.504 -			acpi_parse_plat_int_src((struct acpi_table_plat_int_src
   7.505 -						 *) entry_header);
   7.506 -			break;
   7.507 -		default:
   7.508 -			printk(KERN_WARNING
   7.509 -			       "Unsupported MADT entry type 0x%x\n",
   7.510 -			       entry_header->type);
   7.511 -			break;
   7.512 -		}
   7.513 -		table_size -= entry_header->length;
   7.514 -		entry_header =
   7.515 -		    (acpi_madt_entry_header *) ((void *) entry_header +
   7.516 -						entry_header->length);
   7.517 -	}
   7.518 -
   7.519 -	if (!total_cpus) {
   7.520 -		printk("ACPI: No Processors found in the APCI table.\n");
   7.521 -		return -EINVAL;
   7.522 -	}
   7.523 -
   7.524 -	printk(KERN_INFO "%d CPUs total\n", total_cpus);
   7.525 -
   7.526 -	if (madt->lapic_address)
   7.527 -		mp_lapic_addr = madt->lapic_address;
   7.528 -	else
   7.529 -		mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
   7.530 -
   7.531 -	printk(KERN_INFO "Local APIC address %x\n", madt->lapic_address);
   7.532 -
   7.533 -	return 0;
   7.534 -}
   7.535 -
   7.536 -extern int opt_noacpi;
   7.537 -
   7.538 -/*
   7.539 - * Configure the processor info using MADT in the ACPI tables. If we fail to
   7.540 - * configure that, then we use the MPS tables.
   7.541 - */
   7.542 -void __init
   7.543 -config_acpi_tables(void)
   7.544 -{
   7.545 -	memset(&acpi_boot_ops, 0, sizeof(acpi_boot_ops));
   7.546 -	acpi_boot_ops[ACPI_APIC] = acpi_parse_madt;
   7.547 -
   7.548 -	if (!opt_noacpi && !acpi_tables_init()) {
   7.549 -		have_acpi_tables = 1;
   7.550 -		printk("Enabling the CPU's according to the ACPI table\n");
   7.551 -	}
   7.552 -}

     8.1 --- a/xen-2.4.16/arch/i386/acpitable.h	Mon Feb 24 16:55:07 2003 +0000
     8.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     8.3 @@ -1,260 +0,0 @@
     8.4 -/*
     8.5 - *  acpitable.c - IA32-specific ACPI boot-time initialization (Revision: 1)
     8.6 - *
     8.7 - *  Copyright (C) 1999 Andrew Henroid
     8.8 - *  Copyright (C) 2001 Richard Schaal
     8.9 - *  Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
    8.10 - *  Copyright (C) 2001 Jun Nakajima <jun.nakajima@intel.com>
    8.11 - *  Copyright (C) 2001 Arjan van de Ven <arjanv@redhat.com>
    8.12 - *
    8.13 - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    8.14 - *
    8.15 - *  This program is free software; you can redistribute it and/or modify
    8.16 - *  it under the terms of the GNU General Public License as published by
    8.17 - *  the Free Software Foundation; either version 2 of the License, or
    8.18 - *  (at your option) any later version.
    8.19 - *
    8.20 - *  This program is distributed in the hope that it will be useful,
    8.21 - *  but WITHOUT ANY WARRANTY; without even the implied warranty of
    8.22 - *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    8.23 - *  GNU General Public License for more details.
    8.24 - *
    8.25 - *  You should have received a copy of the GNU General Public License
    8.26 - *  along with this program; if not, write to the Free Software
    8.27 - *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    8.28 - *
    8.29 - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    8.30 - *
    8.31 - * $Id: acpitable.h,v 1.3 2001/11/03 22:41:34 fenrus Exp $
    8.32 - */
    8.33 -
    8.34 -/*
    8.35 - * The following codes are cut&pasted from drivers/acpi. Part of the code
    8.36 - * there can be not updated or delivered yet.
    8.37 - * To avoid conflicts when CONFIG_ACPI is defined, the following codes are
    8.38 - * modified so that they are self-contained in this file.
    8.39 - * -- jun
    8.40 - */
    8.41 - 
    8.42 -#ifndef _HEADER_ACPITABLE_H_
    8.43 -#define _HEADER_ACPITABLE_H_
    8.44 -
    8.45 -#define dprintk printk
    8.46 -typedef unsigned int ACPI_TBLPTR;
    8.47 -
    8.48 -typedef struct {		/* ACPI common table header */
    8.49 -	char signature[4];	/* identifies type of table */
    8.50 -	u32 length;		/* length of table,
    8.51 -				   in bytes, * including header */
    8.52 -	u8 revision;		/* specification minor version # */
    8.53 -	u8 checksum;		/* to make sum of entire table == 0 */
    8.54 -	char oem_id[6];		/* OEM identification */
    8.55 -	char oem_table_id[8];	/* OEM table identification */
    8.56 -	u32 oem_revision;	/* OEM revision number */
    8.57 -	char asl_compiler_id[4];	/* ASL compiler vendor ID */
    8.58 -	u32 asl_compiler_revision;	/* ASL compiler revision number */
    8.59 -} acpi_table_header __attribute__ ((packed));;
    8.60 -
    8.61 -enum {
    8.62 -	ACPI_APIC = 0,
    8.63 -	ACPI_BOOT,
    8.64 -	ACPI_DBGP,
    8.65 -	ACPI_DSDT,
    8.66 -	ACPI_ECDT,
    8.67 -	ACPI_ETDT,
    8.68 -	ACPI_FACP,
    8.69 -	ACPI_FACS,
    8.70 -	ACPI_OEMX,
    8.71 -	ACPI_PSDT,
    8.72 -	ACPI_SBST,
    8.73 -	ACPI_SLIT,
    8.74 -	ACPI_SPCR,
    8.75 -	ACPI_SRAT,
    8.76 -	ACPI_SSDT,
    8.77 -	ACPI_SPMI,
    8.78 -	ACPI_XSDT,
    8.79 -	ACPI_TABLE_COUNT
    8.80 -};
    8.81 -
    8.82 -static char *acpi_table_signatures[ACPI_TABLE_COUNT] = {
    8.83 -	"APIC",
    8.84 -	"BOOT",
    8.85 -	"DBGP",
    8.86 -	"DSDT",
    8.87 -	"ECDT",
    8.88 -	"ETDT",
    8.89 -	"FACP",
    8.90 -	"FACS",
    8.91 -	"OEM",
    8.92 -	"PSDT",
    8.93 -	"SBST",
    8.94 -	"SLIT",
    8.95 -	"SPCR",
    8.96 -	"SRAT",
    8.97 -	"SSDT",
    8.98 -	"SPMI",
    8.99 -	"XSDT"
   8.100 -};
   8.101 -
   8.102 -struct acpi_table_madt {
   8.103 -	acpi_table_header header;
   8.104 -	u32 lapic_address;
   8.105 -	struct {
   8.106 -		u32 pcat_compat:1;
   8.107 -		u32 reserved:31;
   8.108 -	} flags __attribute__ ((packed));
   8.109 -} __attribute__ ((packed));;
   8.110 -
   8.111 -enum {
   8.112 -	ACPI_MADT_LAPIC = 0,
   8.113 -	ACPI_MADT_IOAPIC,
   8.114 -	ACPI_MADT_INT_SRC_OVR,
   8.115 -	ACPI_MADT_NMI_SRC,
   8.116 -	ACPI_MADT_LAPIC_NMI,
   8.117 -	ACPI_MADT_LAPIC_ADDR_OVR,
   8.118 -	ACPI_MADT_IOSAPIC,
   8.119 -	ACPI_MADT_LSAPIC,
   8.120 -	ACPI_MADT_PLAT_INT_SRC,
   8.121 -	ACPI_MADT_ENTRY_COUNT
   8.122 -};
   8.123 -
   8.124 -#define RSDP_SIG			"RSD PTR "
   8.125 -#define RSDT_SIG 			"RSDT"
   8.126 -
   8.127 -#define ACPI_DEBUG_PRINT(pl)
   8.128 -
   8.129 -#define ACPI_MEMORY_MODE                0x01
   8.130 -#define ACPI_LOGICAL_ADDRESSING         0x00
   8.131 -#define ACPI_PHYSICAL_ADDRESSING        0x01
   8.132 -
   8.133 -#define LO_RSDP_WINDOW_BASE         	0	/* Physical Address */
   8.134 -#define HI_RSDP_WINDOW_BASE         	0xE0000	/* Physical Address */
   8.135 -#define LO_RSDP_WINDOW_SIZE         	0x400
   8.136 -#define HI_RSDP_WINDOW_SIZE         	0x20000
   8.137 -#define RSDP_SCAN_STEP			16
   8.138 -#define RSDP_CHECKSUM_LENGTH		20
   8.139 -
   8.140 -typedef int (*acpi_table_handler) (acpi_table_header * header, unsigned long);
   8.141 -
   8.142 -struct acpi_table_rsdp {
   8.143 -	char signature[8];
   8.144 -	u8 checksum;
   8.145 -	char oem_id[6];
   8.146 -	u8 revision;
   8.147 -	u32 rsdt_address;
   8.148 -} __attribute__ ((packed));
   8.149 -
   8.150 -struct acpi_table_rsdt {
   8.151 -	acpi_table_header header;
   8.152 -	u32 entry[ACPI_TABLE_COUNT];
   8.153 -} __attribute__ ((packed));
   8.154 -
   8.155 -typedef struct {
   8.156 -	u8 type;
   8.157 -	u8 length;
   8.158 -} acpi_madt_entry_header __attribute__ ((packed));
   8.159 -
   8.160 -typedef struct {
   8.161 -	u16 polarity:2;
   8.162 -	u16 trigger:2;
   8.163 -	u16 reserved:12;
   8.164 -} acpi_madt_int_flags __attribute__ ((packed));
   8.165 -
   8.166 -struct acpi_table_lapic {
   8.167 -	acpi_madt_entry_header header;
   8.168 -	u8 acpi_id;
   8.169 -	u8 id;
   8.170 -	struct {
   8.171 -		u32 enabled:1;
   8.172 -		u32 reserved:31;
   8.173 -	} flags __attribute__ ((packed));
   8.174 -} __attribute__ ((packed));
   8.175 -
   8.176 -struct acpi_table_ioapic {
   8.177 -	acpi_madt_entry_header header;
   8.178 -	u8 id;
   8.179 -	u8 reserved;
   8.180 -	u32 address;
   8.181 -	u32 global_irq_base;
   8.182 -} __attribute__ ((packed));
   8.183 -
   8.184 -struct acpi_table_int_src_ovr {
   8.185 -	acpi_madt_entry_header header;
   8.186 -	u8 bus;
   8.187 -	u8 bus_irq;
   8.188 -	u32 global_irq;
   8.189 -	acpi_madt_int_flags flags;
   8.190 -} __attribute__ ((packed));
   8.191 -
   8.192 -struct acpi_table_nmi_src {
   8.193 -	acpi_madt_entry_header header;
   8.194 -	acpi_madt_int_flags flags;
   8.195 -	u32 global_irq;
   8.196 -} __attribute__ ((packed));
   8.197 -
   8.198 -struct acpi_table_lapic_nmi {
   8.199 -	acpi_madt_entry_header header;
   8.200 -	u8 acpi_id;
   8.201 -	acpi_madt_int_flags flags;
   8.202 -	u8 lint;
   8.203 -} __attribute__ ((packed));
   8.204 -
   8.205 -struct acpi_table_lapic_addr_ovr {
   8.206 -	acpi_madt_entry_header header;
   8.207 -	u8 reserved[2];
   8.208 -	u64 address;
   8.209 -} __attribute__ ((packed));
   8.210 -
   8.211 -struct acpi_table_iosapic {
   8.212 -	acpi_madt_entry_header header;
   8.213 -	u8 id;
   8.214 -	u8 reserved;
   8.215 -	u32 global_irq_base;
   8.216 -	u64 address;
   8.217 -} __attribute__ ((packed));
   8.218 -
   8.219 -struct acpi_table_lsapic {
   8.220 -	acpi_madt_entry_header header;
   8.221 -	u8 acpi_id;
   8.222 -	u8 id;
   8.223 -	u8 eid;
   8.224 -	u8 reserved[3];
   8.225 -	struct {
   8.226 -		u32 enabled:1;
   8.227 -		u32 reserved:31;
   8.228 -	} flags;
   8.229 -} __attribute__ ((packed));
   8.230 -
   8.231 -struct acpi_table_plat_int_src {
   8.232 -	acpi_madt_entry_header header;
   8.233 -	acpi_madt_int_flags flags;
   8.234 -	u8 type;
   8.235 -	u8 id;
   8.236 -	u8 eid;
   8.237 -	u8 iosapic_vector;
   8.238 -	u32 global_irq;
   8.239 -	u32 reserved;
   8.240 -} __attribute__ ((packed));
   8.241 -
   8.242 -/*
   8.243 - * ACPI Table Descriptor.  One per ACPI table
   8.244 - */
   8.245 -typedef struct acpi_table_desc {
   8.246 -	struct acpi_table_desc *prev;
   8.247 -	struct acpi_table_desc *next;
   8.248 -	struct acpi_table_desc *installed_desc;
   8.249 -	acpi_table_header *pointer;
   8.250 -	void *base_pointer;
   8.251 -	u8 *aml_pointer;
   8.252 -	u64 physical_address;
   8.253 -	u32 aml_length;
   8.254 -	u32 length;
   8.255 -	u32 count;
   8.256 -	u16 table_id;
   8.257 -	u8 type;
   8.258 -	u8 allocation;
   8.259 -	u8 loaded_into_namespace;
   8.260 -
   8.261 -} acpi_table_desc __attribute__ ((packed));;
   8.262 -
   8.263 -#endif

     9.1 --- a/xen-2.4.16/arch/i386/apic.c	Mon Feb 24 16:55:07 2003 +0000
     9.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     9.3 @@ -1,845 +0,0 @@
     9.4 -/* -*-  Mode:C; c-basic-offset:4; tab-width:4 -*-
     9.5 - ****************************************************************************
     9.6 - * (C) 2002 - Rolf Neugebauer - Intel Research Cambridge
     9.7 - ****************************************************************************
     9.8 - *
     9.9 - *        File: apic.c
    9.10 - *      Author: 
    9.11 - *     Changes: 
    9.12 - *              
    9.13 - *        Date: Nov 2002
    9.14 - * 
    9.15 - * Environment: Xen Hypervisor
    9.16 - * Description: programmable APIC timer interface for accurate timers
    9.17 - *              modified version of Linux' apic.c
    9.18 - *
    9.19 - ****************************************************************************
    9.20 - * $Id: c-insert.c,v 1.7 2002/11/08 16:04:34 rn Exp $
    9.21 - ****************************************************************************
    9.22 - */
    9.23 -
    9.24 -/*
    9.25 - *	Local APIC handling, local APIC timers
    9.26 - *
    9.27 - *	(c) 1999, 2000 Ingo Molnar <mingo@redhat.com>
    9.28 - *
    9.29 - *	Fixes
    9.30 - *	Maciej W. Rozycki	:	Bits for genuine 82489DX APICs;
    9.31 - *					thanks to Eric Gilmore
    9.32 - *					and Rolf G. Tews
    9.33 - *					for testing these extensively.
    9.34 - */
    9.35 -
    9.36 -
    9.37 -#include <xeno/config.h>
    9.38 -#include <xeno/init.h>
    9.39 -#include <xeno/sched.h>
    9.40 -#include <xeno/irq.h>
    9.41 -#include <xeno/delay.h>
    9.42 -#include <asm/mc146818rtc.h>
    9.43 -#include <asm/msr.h>
    9.44 -#include <xeno/errno.h>
    9.45 -#include <asm/atomic.h>
    9.46 -#include <xeno/smp.h>
    9.47 -#include <xeno/interrupt.h>
    9.48 -#include <asm/mpspec.h>
    9.49 -#include <asm/pgalloc.h>
    9.50 -#include <asm/hardirq.h>
    9.51 -
    9.52 -#include <xeno/ac_timer.h>
    9.53 -
    9.54 -#undef APIC_TIME_TRACE
    9.55 -#ifdef APIC_TIME_TRACE
    9.56 -#define TRC(_x) _x
    9.57 -#else
    9.58 -#define TRC(_x)
    9.59 -#endif
    9.60 -
    9.61 -
    9.62 -/* Using APIC to generate smp_local_timer_interrupt? */
    9.63 -int using_apic_timer = 0;
    9.64 -
    9.65 -int get_maxlvt(void)
    9.66 -{
    9.67 -    unsigned int v, ver, maxlvt;
    9.68 -
    9.69 -    v = apic_read(APIC_LVR);
    9.70 -    ver = GET_APIC_VERSION(v);
    9.71 -    /* 82489DXs do not report # of LVT entries. */
    9.72 -    maxlvt = APIC_INTEGRATED(ver) ? GET_APIC_MAXLVT(v) : 2;
    9.73 -    return maxlvt;
    9.74 -}
    9.75 -
    9.76 -static void clear_local_APIC(void)
    9.77 -{
    9.78 -    int maxlvt;
    9.79 -    unsigned long v;
    9.80 -
    9.81 -    maxlvt = get_maxlvt();
    9.82 -
    9.83 -    /*
    9.84 -     * Careful: we have to set masks only first to deassert
    9.85 -     * any level-triggered sources.
    9.86 -     */
    9.87 -    v = apic_read(APIC_LVTT);
    9.88 -    apic_write_around(APIC_LVTT, v | APIC_LVT_MASKED);
    9.89 -    v = apic_read(APIC_LVT0);
    9.90 -    apic_write_around(APIC_LVT0, v | APIC_LVT_MASKED);
    9.91 -    v = apic_read(APIC_LVT1);
    9.92 -    apic_write_around(APIC_LVT1, v | APIC_LVT_MASKED);
    9.93 -    if (maxlvt >= 3) {
    9.94 -        v = apic_read(APIC_LVTERR);
    9.95 -        apic_write_around(APIC_LVTERR, v | APIC_LVT_MASKED);
    9.96 -    }
    9.97 -    if (maxlvt >= 4) {
    9.98 -        v = apic_read(APIC_LVTPC);
    9.99 -        apic_write_around(APIC_LVTPC, v | APIC_LVT_MASKED);
   9.100 -    }
   9.101 -
   9.102 -    /*
   9.103 -     * Clean APIC state for other OSs:
   9.104 -     */
   9.105 -    apic_write_around(APIC_LVTT, APIC_LVT_MASKED);
   9.106 -    apic_write_around(APIC_LVT0, APIC_LVT_MASKED);
   9.107 -    apic_write_around(APIC_LVT1, APIC_LVT_MASKED);
   9.108 -    if (maxlvt >= 3)
   9.109 -        apic_write_around(APIC_LVTERR, APIC_LVT_MASKED);
   9.110 -    if (maxlvt >= 4)
   9.111 -        apic_write_around(APIC_LVTPC, APIC_LVT_MASKED);
   9.112 -}
   9.113 -
   9.114 -void __init connect_bsp_APIC(void)
   9.115 -{
   9.116 -    if (pic_mode) {
   9.117 -        /*
   9.118 -         * Do not trust the local APIC being empty at bootup.
   9.119 -         */
   9.120 -        clear_local_APIC();
   9.121 -        /*
   9.122 -         * PIC mode, enable APIC mode in the IMCR, i.e.
   9.123 -         * connect BSP's local APIC to INT and NMI lines.
   9.124 -         */
   9.125 -        printk("leaving PIC mode, enabling APIC mode.\n");
   9.126 -        outb(0x70, 0x22);
   9.127 -        outb(0x01, 0x23);
   9.128 -    }
   9.129 -}
   9.130 -
   9.131 -void disconnect_bsp_APIC(void)
   9.132 -{
   9.133 -    if (pic_mode) {
   9.134 -        /*
   9.135 -         * Put the board back into PIC mode (has an effect
   9.136 -         * only on certain older boards).  Note that APIC
   9.137 -         * interrupts, including IPIs, won't work beyond
   9.138 -         * this point!  The only exception are INIT IPIs.
   9.139 -         */
   9.140 -        printk("disabling APIC mode, entering PIC mode.\n");
   9.141 -        outb(0x70, 0x22);
   9.142 -        outb(0x00, 0x23);
   9.143 -    }
   9.144 -}
   9.145 -
   9.146 -void disable_local_APIC(void)
   9.147 -{
   9.148 -    unsigned long value;
   9.149 -
   9.150 -    clear_local_APIC();
   9.151 -
   9.152 -    /*
   9.153 -     * Disable APIC (implies clearing of registers
   9.154 -     * for 82489DX!).
   9.155 -     */
   9.156 -    value = apic_read(APIC_SPIV);
   9.157 -    value &= ~APIC_SPIV_APIC_ENABLED;
   9.158 -    apic_write_around(APIC_SPIV, value);
   9.159 -}
   9.160 -
   9.161 -/*
   9.162 - * This is to verify that we're looking at a real local APIC.
   9.163 - * Check these against your board if the CPUs aren't getting
   9.164 - * started for no apparent reason.
   9.165 - */
   9.166 -int __init verify_local_APIC(void)
   9.167 -{
   9.168 -    unsigned int reg0, reg1;
   9.169 -
   9.170 -    /*
   9.171 -     * The version register is read-only in a real APIC.
   9.172 -     */
   9.173 -    reg0 = apic_read(APIC_LVR);
   9.174 -    Dprintk("Getting VERSION: %x\n", reg0);
   9.175 -    apic_write(APIC_LVR, reg0 ^ APIC_LVR_MASK);
   9.176 -    reg1 = apic_read(APIC_LVR);
   9.177 -    Dprintk("Getting VERSION: %x\n", reg1);
   9.178 -
   9.179 -    /*
   9.180 -     * The two version reads above should print the same
   9.181 -     * numbers.  If the second one is different, then we
   9.182 -     * poke at a non-APIC.
   9.183 -     */
   9.184 -    if (reg1 != reg0)
   9.185 -        return 0;
   9.186 -
   9.187 -    /*
   9.188 -     * Check if the version looks reasonably.
   9.189 -     */
   9.190 -    reg1 = GET_APIC_VERSION(reg0);
   9.191 -    if (reg1 == 0x00 || reg1 == 0xff)
   9.192 -        return 0;
   9.193 -    reg1 = get_maxlvt();
   9.194 -    if (reg1 < 0x02 || reg1 == 0xff)
   9.195 -        return 0;
   9.196 -
   9.197 -    /*
   9.198 -     * The ID register is read/write in a real APIC.
   9.199 -     */
   9.200 -    reg0 = apic_read(APIC_ID);
   9.201 -    Dprintk("Getting ID: %x\n", reg0);
   9.202 -    apic_write(APIC_ID, reg0 ^ APIC_ID_MASK);
   9.203 -    reg1 = apic_read(APIC_ID);
   9.204 -    Dprintk("Getting ID: %x\n", reg1);
   9.205 -    apic_write(APIC_ID, reg0);
   9.206 -    if (reg1 != (reg0 ^ APIC_ID_MASK))
   9.207 -        return 0;
   9.208 -
   9.209 -    /*
   9.210 -     * The next two are just to see if we have sane values.
   9.211 -     * They're only really relevant if we're in Virtual Wire
   9.212 -     * compatibility mode, but most boxes are anymore.
   9.213 -     */
   9.214 -    reg0 = apic_read(APIC_LVT0);
   9.215 -    Dprintk("Getting LVT0: %x\n", reg0);
   9.216 -    reg1 = apic_read(APIC_LVT1);
   9.217 -    Dprintk("Getting LVT1: %x\n", reg1);
   9.218 -
   9.219 -    return 1;
   9.220 -}
   9.221 -
   9.222 -void __init sync_Arb_IDs(void)
   9.223 -{
   9.224 -    /* Wait for idle. */
   9.225 -    apic_wait_icr_idle();
   9.226 -
   9.227 -    Dprintk("Synchronizing Arb IDs.\n");
   9.228 -    apic_write_around(APIC_ICR, APIC_DEST_ALLINC | APIC_INT_LEVELTRIG
   9.229 -                      | APIC_DM_INIT);
   9.230 -}
   9.231 -
   9.232 -extern void __error_in_apic_c (void);
   9.233 -
   9.234 -/*
   9.235 - * WAS: An initial setup of the virtual wire mode.
   9.236 - * NOW: We don't bother doing anything. All we need at this point
   9.237 - * is to receive timer ticks, so that 'jiffies' is incremented.
   9.238 - * If we're SMP, then we can assume BIOS did setup for us.
   9.239 - * If we're UP, then the APIC should be disabled (it is at reset).
   9.240 - * If we're UP and APIC is enabled, then BIOS is clever and has 
   9.241 - * probably done initial interrupt routing for us.
   9.242 - */
   9.243 -void __init init_bsp_APIC(void)
   9.244 -{
   9.245 -}
   9.246 -
   9.247 -void __init setup_local_APIC (void)
   9.248 -{
   9.249 -    unsigned long value, ver, maxlvt;
   9.250 -
   9.251 -    value = apic_read(APIC_LVR);
   9.252 -    ver = GET_APIC_VERSION(value);
   9.253 -
   9.254 -    if ((SPURIOUS_APIC_VECTOR & 0x0f) != 0x0f)
   9.255 -        __error_in_apic_c();
   9.256 -
   9.257 -    /* Double-check wether this APIC is really registered. */
   9.258 -    if (!test_bit(GET_APIC_ID(apic_read(APIC_ID)), &phys_cpu_present_map))
   9.259 -        BUG();
   9.260 -
   9.261 -    /*
   9.262 -     * Intel recommends to set DFR, LDR and TPR before enabling
   9.263 -     * an APIC.  See e.g. "AP-388 82489DX User's Manual" (Intel
   9.264 -     * document number 292116).  So here it goes...
   9.265 -     */
   9.266 -
   9.267 -    /*
   9.268 -     * In clustered apic mode, the firmware does this for us 
   9.269 -     * Put the APIC into flat delivery mode.
   9.270 -     * Must be "all ones" explicitly for 82489DX.
   9.271 -     */
   9.272 -    apic_write_around(APIC_DFR, 0xffffffff);
   9.273 -
   9.274 -    /*
   9.275 -     * Set up the logical destination ID.
   9.276 -     */
   9.277 -    value = apic_read(APIC_LDR);
   9.278 -    value &= ~APIC_LDR_MASK;
   9.279 -    value |= (1<<(smp_processor_id()+24));
   9.280 -    apic_write_around(APIC_LDR, value);
   9.281 -
   9.282 -    /*
   9.283 -     * Set Task Priority to 'accept all'. We never change this
   9.284 -     * later on.
   9.285 -     */
   9.286 -    value = apic_read(APIC_TASKPRI);
   9.287 -    value &= ~APIC_TPRI_MASK;
   9.288 -    apic_write_around(APIC_TASKPRI, value);
   9.289 -
   9.290 -    /*
   9.291 -     * Now that we are all set up, enable the APIC
   9.292 -     */
   9.293 -    value = apic_read(APIC_SPIV);
   9.294 -    value &= ~APIC_VECTOR_MASK;
   9.295 -    /*
   9.296 -     * Enable APIC
   9.297 -     */
   9.298 -    value |= APIC_SPIV_APIC_ENABLED;
   9.299 -
   9.300 -    /* Enable focus processor (bit==0) */
   9.301 -    value &= ~APIC_SPIV_FOCUS_DISABLED;
   9.302 -
   9.303 -    /* Set spurious IRQ vector */
   9.304 -    value |= SPURIOUS_APIC_VECTOR;
   9.305 -    apic_write_around(APIC_SPIV, value);
   9.306 -
   9.307 -    /*
   9.308 -     * Set up LVT0, LVT1:
   9.309 -     *
   9.310 -     * set up through-local-APIC on the BP's LINT0. This is not
   9.311 -     * strictly necessery in pure symmetric-IO mode, but sometimes
   9.312 -     * we delegate interrupts to the 8259A.
   9.313 -     */
   9.314 -    /*
   9.315 -     * TODO: set up through-local-APIC from through-I/O-APIC? --macro
   9.316 -     */
   9.317 -    value = apic_read(APIC_LVT0) & APIC_LVT_MASKED;
   9.318 -    if (!smp_processor_id()) { 
   9.319 -        value = APIC_DM_EXTINT;
   9.320 -        printk("enabled ExtINT on CPU#%d\n", smp_processor_id());
   9.321 -    } else {
   9.322 -        value = APIC_DM_EXTINT | APIC_LVT_MASKED;
   9.323 -        printk("masked ExtINT on CPU#%d\n", smp_processor_id());
   9.324 -    }
   9.325 -    apic_write_around(APIC_LVT0, value);
   9.326 -
   9.327 -    /*
   9.328 -     * only the BP should see the LINT1 NMI signal, obviously.
   9.329 -     */
   9.330 -    if (!smp_processor_id())
   9.331 -        value = APIC_DM_NMI;
   9.332 -    else
   9.333 -        value = APIC_DM_NMI | APIC_LVT_MASKED;
   9.334 -    if (!APIC_INTEGRATED(ver))		/* 82489DX */
   9.335 -        value |= APIC_LVT_LEVEL_TRIGGER;
   9.336 -    apic_write_around(APIC_LVT1, value);
   9.337 -
   9.338 -    if (APIC_INTEGRATED(ver)) {		/* !82489DX */
   9.339 -        maxlvt = get_maxlvt();
   9.340 -        if (maxlvt > 3)		/* Due to the Pentium erratum 3AP. */
   9.341 -            apic_write(APIC_ESR, 0);
   9.342 -        value = apic_read(APIC_ESR);
   9.343 -        printk("ESR value before enabling vector: %08lx\n", value);
   9.344 -
   9.345 -        value = ERROR_APIC_VECTOR;      /* enables sending errors */
   9.346 -        apic_write_around(APIC_LVTERR, value);
   9.347 -        /* spec says clear errors after enabling vector. */
   9.348 -        if (maxlvt > 3)
   9.349 -            apic_write(APIC_ESR, 0);
   9.350 -        value = apic_read(APIC_ESR);
   9.351 -        printk("ESR value after enabling vector: %08lx\n", value);
   9.352 -    } else {
   9.353 -        printk("No ESR for 82489DX.\n");
   9.354 -    }
   9.355 -}
   9.356 -
   9.357 -
   9.358 -static inline void apic_pm_init1(void) { }
   9.359 -static inline void apic_pm_init2(void) { }
   9.360 -
   9.361 -
   9.362 -/*
   9.363 - * Detect and enable local APICs on non-SMP boards.
   9.364 - * Original code written by Keir Fraser.
   9.365 - */
   9.366 -
   9.367 -static int __init detect_init_APIC (void)
   9.368 -{
   9.369 -    u32 h, l, features;
   9.370 -    extern void get_cpu_vendor(struct cpuinfo_x86*);
   9.371 -
   9.372 -    /* Workaround for us being called before identify_cpu(). */
   9.373 -    get_cpu_vendor(&boot_cpu_data);
   9.374 -
   9.375 -    switch (boot_cpu_data.x86_vendor) {
   9.376 -    case X86_VENDOR_AMD:
   9.377 -        if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model > 1)
   9.378 -            break;
   9.379 -        goto no_apic;
   9.380 -    case X86_VENDOR_INTEL:
   9.381 -        if (boot_cpu_data.x86 == 6 ||
   9.382 -            (boot_cpu_data.x86 == 15 && cpu_has_apic) ||
   9.383 -            (boot_cpu_data.x86 == 5 && cpu_has_apic))
   9.384 -            break;
   9.385 -        goto no_apic;
   9.386 -    default:
   9.387 -        goto no_apic;
   9.388 -    }
   9.389 -
   9.390 -    if (!cpu_has_apic) {
   9.391 -        /*
   9.392 -         * Some BIOSes disable the local APIC in the
   9.393 -         * APIC_BASE MSR. This can only be done in
   9.394 -         * software for Intel P6 and AMD K7 (Model > 1).
   9.395 -         */
   9.396 -        rdmsr(MSR_IA32_APICBASE, l, h);
   9.397 -        if (!(l & MSR_IA32_APICBASE_ENABLE)) {
   9.398 -            printk("Local APIC disabled by BIOS -- reenabling.\n");
   9.399 -            l &= ~MSR_IA32_APICBASE_BASE;
   9.400 -            l |= MSR_IA32_APICBASE_ENABLE | APIC_DEFAULT_PHYS_BASE;
   9.401 -            wrmsr(MSR_IA32_APICBASE, l, h);
   9.402 -        }
   9.403 -    }
   9.404 -
   9.405 -    /* The APIC feature bit should now be enabled in `cpuid' */
   9.406 -    features = cpuid_edx(1);
   9.407 -    if (!(features & (1 << X86_FEATURE_APIC))) {
   9.408 -        printk("Could not enable APIC!\n");
   9.409 -        return -1;
   9.410 -    }
   9.411 -
   9.412 -    set_bit(X86_FEATURE_APIC, &boot_cpu_data.x86_capability);
   9.413 -    mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
   9.414 -    boot_cpu_physical_apicid = 0;
   9.415 -
   9.416 -    printk("Found and enabled local APIC!\n");
   9.417 -    apic_pm_init1();
   9.418 -    return 0;
   9.419 -
   9.420 - no_apic:
   9.421 -    printk("No local APIC present or hardware disabled\n");
   9.422 -    return -1;
   9.423 -}
   9.424 -
   9.425 -void __init init_apic_mappings(void)
   9.426 -{
   9.427 -    unsigned long apic_phys = 0;
   9.428 -
   9.429 -    /*
   9.430 -     * If no local APIC can be found then set up a fake all zeroes page to 
   9.431 -     * simulate the local APIC and another one for the IO-APIC.
   9.432 -     */
   9.433 -    if (!smp_found_config && detect_init_APIC()) {
   9.434 -        apic_phys = get_free_page(GFP_KERNEL);
   9.435 -        apic_phys = __pa(apic_phys);
   9.436 -    } else
   9.437 -        apic_phys = mp_lapic_addr;
   9.438 -
   9.439 -    set_fixmap_nocache(FIX_APIC_BASE, apic_phys);
   9.440 -    Dprintk("mapped APIC to %08lx (%08lx)\n", APIC_BASE, apic_phys);
   9.441 -
   9.442 -    /*
   9.443 -     * Fetch the APIC ID of the BSP in case we have a
   9.444 -     * default configuration (or the MP table is broken).
   9.445 -     */
   9.446 -    if (boot_cpu_physical_apicid == -1U)
   9.447 -        boot_cpu_physical_apicid = GET_APIC_ID(apic_read(APIC_ID));
   9.448 -
   9.449 -#ifdef CONFIG_X86_IO_APIC
   9.450 -    {
   9.451 -        unsigned long ioapic_phys = 0, idx = FIX_IO_APIC_BASE_0;
   9.452 -        int i;
   9.453 -
   9.454 -        for (i = 0; i < nr_ioapics; i++) {
   9.455 -            if (smp_found_config)
   9.456 -                ioapic_phys = mp_ioapics[i].mpc_apicaddr;
   9.457 -            set_fixmap_nocache(idx, ioapic_phys);
   9.458 -            Dprintk("mapped IOAPIC to %08lx (%08lx)\n",
   9.459 -                    __fix_to_virt(idx), ioapic_phys);
   9.460 -            idx++;
   9.461 -        }
   9.462 -    }
   9.463 -#endif
   9.464 -}
   9.465 -
   9.466 -/*****************************************************************************
   9.467 - * APIC calibration
   9.468 - * 
   9.469 - * The APIC is programmed in bus cycles.
   9.470 - * Timeout values should specified in real time units.
   9.471 - * The "cheapest" time source is the cyclecounter.
   9.472 - * 
   9.473 - * Thus, we need a mappings from: bus cycles <- cycle counter <- system time
   9.474 - * 
   9.475 - * The calibration is currently a bit shoddy since it requires the external
   9.476 - * timer chip to generate periodic timer interupts. 
   9.477 - *****************************************************************************/
   9.478 -
   9.479 -/* used for system time scaling */
   9.480 -static unsigned int bus_freq;
   9.481 -static u32          bus_cycle;   /* length of one bus cycle in pico-seconds */
   9.482 -static u32          bus_scale;   /* scaling factor convert ns to bus cycles */
   9.483 -u64 cpu_freq;
   9.484 -
   9.485 -/*
   9.486 - * The timer chip is already set up at HZ interrupts per second here,
   9.487 - * but we do not accept timer interrupts yet. We only allow the BP
   9.488 - * to calibrate.
   9.489 - */
   9.490 -static unsigned int __init get_8254_timer_count(void)
   9.491 -{
   9.492 -    /*extern spinlock_t i8253_lock;*/
   9.493 -    /*unsigned long flags;*/
   9.494 -    unsigned int count;
   9.495 -    /*spin_lock_irqsave(&i8253_lock, flags);*/
   9.496 -    outb_p(0x00, 0x43);
   9.497 -    count = inb_p(0x40);
   9.498 -    count |= inb_p(0x40) << 8;
   9.499 -    /*spin_unlock_irqrestore(&i8253_lock, flags);*/
   9.500 -    return count;
   9.501 -}
   9.502 -
   9.503 -void __init wait_8254_wraparound(void)
   9.504 -{
   9.505 -    unsigned int curr_count, prev_count=~0;
   9.506 -    int delta;
   9.507 -    curr_count = get_8254_timer_count();
   9.508 -    do {
   9.509 -        prev_count = curr_count;
   9.510 -        curr_count = get_8254_timer_count();
   9.511 -        delta = curr_count-prev_count;
   9.512 -        /*
   9.513 -         * This limit for delta seems arbitrary, but it isn't, it's slightly 
   9.514 -         * above the level of error a buggy Mercury/Neptune chipset timer can 
   9.515 -         * cause.
   9.516 -         */
   9.517 -    } while (delta < 300);
   9.518 -}
   9.519 -
   9.520 -/*
   9.521 - * This function sets up the local APIC timer, with a timeout of
   9.522 - * 'clocks' APIC bus clock. During calibration we actually call
   9.523 - * this function with a very large value and read the current time after
   9.524 - * a well defined period of time as expired.
   9.525 - *
   9.526 - * Calibration is only performed once, for CPU0!
   9.527 - *
   9.528 - * We do reads before writes even if unnecessary, to get around the
   9.529 - * P5 APIC double write bug.
   9.530 - */
   9.531 -#define APIC_DIVISOR 1
   9.532 -static void __setup_APIC_LVTT(unsigned int clocks)
   9.533 -{
   9.534 -    unsigned int lvtt1_value, tmp_value;
   9.535 -    lvtt1_value = SET_APIC_TIMER_BASE(APIC_TIMER_BASE_DIV)|LOCAL_TIMER_VECTOR;
   9.536 -    apic_write_around(APIC_LVTT, lvtt1_value);
   9.537 -    tmp_value = apic_read(APIC_TDCR);
   9.538 -    apic_write_around(APIC_TDCR, (tmp_value | APIC_TDR_DIV_1));
   9.539 -    apic_write_around(APIC_TMICT, clocks/APIC_DIVISOR);
   9.540 -}
   9.541 -
   9.542 -/*
   9.543 - * this is done for every CPU from setup_APIC_clocks() below.
   9.544 - * We setup each local APIC with a zero timeout value for now.
   9.545 - * Unlike Linux, we don't have to wait for slices etc.
   9.546 - */
   9.547 -void setup_APIC_timer(void * data)
   9.548 -{
   9.549 -    unsigned long flags;
   9.550 -    __save_flags(flags);
   9.551 -    __sti();
   9.552 -    printk("cpu: %d: setup timer.", smp_processor_id());
   9.553 -    __setup_APIC_LVTT(0);
   9.554 -    printk("done\n");
   9.555 -    __restore_flags(flags);
   9.556 -}
   9.557 -
   9.558 -/*
   9.559 - * In this function we calibrate APIC bus clocks to the external timer.
   9.560 - *
   9.561 - * As a result we have the Bys Speed and CPU speed in Hz.
   9.562 - * 
   9.563 - * We want to do the calibration only once (for CPU0).  CPUs connected by the
   9.564 - * same APIC bus have the very same bus frequency.
   9.565 - *
   9.566 - * This bit is a bit shoddy since we use the very same periodic timer interrupt
   9.567 - * we try to eliminate to calibrate the APIC. 
   9.568 - */
   9.569 -
   9.570 -int __init calibrate_APIC_clock(void)
   9.571 -{
   9.572 -    unsigned long long t1 = 0, t2 = 0;
   9.573 -    long tt1, tt2;
   9.574 -    long result;
   9.575 -    int i;
   9.576 -    const int LOOPS = HZ/10;
   9.577 -
   9.578 -    printk("calibrating APIC timer for CPU%d...\n",  smp_processor_id());
   9.579 -
   9.580 -    /* Put whatever arbitrary (but long enough) timeout
   9.581 -     * value into the APIC clock, we just want to get the
   9.582 -     * counter running for calibration. */
   9.583 -    __setup_APIC_LVTT(1000000000);
   9.584 -
   9.585 -    /* The timer chip counts down to zero. Let's wait
   9.586 -     * for a wraparound to start exact measurement:
   9.587 -     * (the current tick might have been already half done) */
   9.588 -    wait_8254_wraparound();
   9.589 -
   9.590 -    /* We wrapped around just now. Let's start: */
   9.591 -    rdtscll(t1);
   9.592 -    tt1 = apic_read(APIC_TMCCT);
   9.593 -
   9.594 -    /* Let's wait LOOPS wraprounds: */
   9.595 -    for (i = 0; i < LOOPS; i++)
   9.596 -        wait_8254_wraparound();
   9.597 -
   9.598 -    tt2 = apic_read(APIC_TMCCT);
   9.599 -    rdtscll(t2);
   9.600 -
   9.601 -    /* The APIC bus clock counter is 32 bits only, it
   9.602 -     * might have overflown, but note that we use signed
   9.603 -     * longs, thus no extra care needed.
   9.604 -     * underflown to be exact, as the timer counts down ;) */
   9.605 -    result = (tt1-tt2)*APIC_DIVISOR/LOOPS;
   9.606 -
   9.607 -    printk("..... CPU speed is %ld.%04ld MHz.\n",
   9.608 -           ((long)(t2-t1)/LOOPS)/(1000000/HZ),
   9.609 -           ((long)(t2-t1)/LOOPS)%(1000000/HZ));
   9.610 -
   9.611 -    printk("..... Bus speed is %ld.%04ld MHz.\n",
   9.612 -           result/(1000000/HZ),
   9.613 -           result%(1000000/HZ));
   9.614 -
   9.615 -    cpu_freq = (u64)(((t2-t1)/LOOPS)*HZ);
   9.616 -
   9.617 -    /* set up multipliers for accurate timer code */
   9.618 -    bus_freq   = result*HZ;
   9.619 -    bus_cycle  = (u32) (1000000000000LL/bus_freq); /* in pico seconds */
   9.620 -    bus_scale  = (1000*262144)/bus_cycle;
   9.621 -
   9.622 -    /* print results */
   9.623 -    printk("..... bus_freq  = %u Hz\n",  bus_freq);
   9.624 -    printk("..... bus_cycle = %u ps\n",  bus_cycle);
   9.625 -    printk("..... bus_scale = %u \n",    bus_scale);
   9.626 -    /* reset APIC to zero timeout value */
   9.627 -    __setup_APIC_LVTT(0);
   9.628 -    return result;
   9.629 -}
   9.630 -
   9.631 -/*
   9.632 - * initialise the APIC timers for all CPUs
   9.633 - * we start with the first and find out processor frequency and bus speed
   9.634 - */
   9.635 -void __init setup_APIC_clocks (void)
   9.636 -{
   9.637 -    printk("Using local APIC timer interrupts.\n");
   9.638 -    using_apic_timer = 1;
   9.639 -    __cli();
   9.640 -    /* calibrate CPU0 for CPU speed and BUS speed */
   9.641 -    bus_freq = calibrate_APIC_clock();
   9.642 -    /* Now set up the timer for real. */
   9.643 -    setup_APIC_timer((void *)bus_freq);
   9.644 -    __sti();
   9.645 -    /* and update all other cpus */
   9.646 -    smp_call_function(setup_APIC_timer, (void *)bus_freq, 1, 1);
   9.647 -}
   9.648 -
   9.649 -#undef APIC_DIVISOR
   9.650 -
   9.651 -/*
   9.652 - * reprogram the APIC timer. Timeoutvalue is in ns from start of boot
   9.653 - * returns 1 on success
   9.654 - * returns 0 if the timeout value is too small or in the past.
   9.655 - */
   9.656 -int reprogram_ac_timer(s_time_t timeout)
   9.657 -{
   9.658 -    int 		cpu = smp_processor_id();
   9.659 -    s_time_t	now;
   9.660 -    s_time_t	expire;
   9.661 -    u64			apic_tmict;
   9.662 -
   9.663 -    now = NOW();
   9.664 -    expire = timeout - now;	/* value from now */
   9.665 -
   9.666 -    if (expire <= 0) {
   9.667 -        printk("APICT[%02d] Timeout in the past 0x%08X%08X > 0x%08X%08X\n", 
   9.668 -               cpu, (u32)(now>>32), (u32)now, (u32)(timeout>>32),(u32)timeout);
   9.669 -        return 0;		/* timeout value in the past */
   9.670 -    }
   9.671 -
   9.672 -    /* conversion to bus units */
   9.673 -    apic_tmict = (((u64)bus_scale) * expire)>>18;
   9.674 -
   9.675 -    if (apic_tmict >= 0xffffffff) {
   9.676 -        printk("APICT[%02d] Timeout value too large\n", cpu);
   9.677 -        apic_tmict = 0xffffffff;
   9.678 -    }
   9.679 -    if (apic_tmict == 0) {
   9.680 -        printk("APICT[%02d] timeout value too small\n", cpu);
   9.681 -        return 0;
   9.682 -    }
   9.683 -
   9.684 -    /* programm timer */
   9.685 -    apic_write(APIC_TMICT, (unsigned long)apic_tmict);
   9.686 -
   9.687 -    TRC(printk("APICT[%02d] reprog(): expire=%lld %u\n",
   9.688 -               cpu, expire, apic_tmict));
   9.689 -    return 1;
   9.690 -}
   9.691 -
   9.692 -/*
   9.693 - * Local timer interrupt handler.
   9.694 - * here the programmable, accurate timers are executed.
   9.695 - * If we are on CPU0 and we should have updated jiffies, we do this 
   9.696 - * as well and and deal with traditional linux timers. Note, that of 
   9.697 - * the timer APIC on CPU does not go off every 10ms or so the linux 
   9.698 - * timers loose accuracy, but that shouldn't be a problem.
   9.699 - */
   9.700 -static s_time_t last_cpu0_tirq = 0;
   9.701 -inline void smp_local_timer_interrupt(struct pt_regs * regs)
   9.702 -{
   9.703 -    int cpu = smp_processor_id();
   9.704 -    s_time_t diff, now;
   9.705 -
   9.706 -    /* if CPU 0 do old timer stuff  */
   9.707 -    if (cpu == 0)
   9.708 -    {
   9.709 -        now = NOW();
   9.710 -        diff = now - last_cpu0_tirq;
   9.711 -
   9.712 -        if (diff <= 0) {
   9.713 -            printk ("System Time went backwards: %lld\n", diff);
   9.714 -            return;
   9.715 -        }
   9.716 -
   9.717 -        while (diff >= MILLISECS(10)) {
   9.718 -            do_timer(regs);
   9.719 -            diff           -= MILLISECS(10);
   9.720 -            last_cpu0_tirq += MILLISECS(10);
   9.721 -        }
   9.722 -    }
   9.723 -    /* call accurate timer function */
   9.724 -    do_ac_timer();
   9.725 -}
   9.726 -
   9.727 -/*
   9.728 - * Local APIC timer interrupt. This is the most natural way for doing
   9.729 - * local interrupts, but local timer interrupts can be emulated by
   9.730 - * broadcast interrupts too. [in case the hw doesnt support APIC timers]
   9.731 - *
   9.732 - * [ if a single-CPU system runs an SMP kernel then we call the local
   9.733 - *   interrupt as well. Thus we cannot inline the local irq ... ]
   9.734 - */
   9.735 -unsigned int apic_timer_irqs [NR_CPUS];
   9.736 -
   9.737 -void smp_apic_timer_interrupt(struct pt_regs * regs)
   9.738 -{
   9.739 -    int cpu = smp_processor_id();
   9.740 -
   9.741 -    /*
   9.742 -     * the NMI deadlock-detector uses this.
   9.743 -     */
   9.744 -    apic_timer_irqs[cpu]++;
   9.745 -
   9.746 -    /*
   9.747 -     * NOTE! We'd better ACK the irq immediately, because timer handling can 
   9.748 -     * be slow. XXX is this save?
   9.749 -     */
   9.750 -    ack_APIC_irq();
   9.751 -
   9.752 -	/* call the local handler */
   9.753 -    irq_enter(cpu, 0);
   9.754 -    smp_local_timer_interrupt(regs);
   9.755 -    irq_exit(cpu, 0);
   9.756 -
   9.757 -    if (softirq_pending(cpu))
   9.758 -        do_softirq();
   9.759 -}
   9.760 -
   9.761 -/*
   9.762 - * This interrupt should _never_ happen with our APIC/SMP architecture
   9.763 - */
   9.764 -asmlinkage void smp_spurious_interrupt(void)
   9.765 -{
   9.766 -    unsigned long v;
   9.767 -
   9.768 -    /*
   9.769 -     * Check if this really is a spurious interrupt and ACK it
   9.770 -     * if it is a vectored one.  Just in case...
   9.771 -     * Spurious interrupts should not be ACKed.
   9.772 -     */
   9.773 -    v = apic_read(APIC_ISR + ((SPURIOUS_APIC_VECTOR & ~0x1f) >> 1));
   9.774 -    if (v & (1 << (SPURIOUS_APIC_VECTOR & 0x1f)))
   9.775 -        ack_APIC_irq();
   9.776 -
   9.777 -    /* see sw-dev-man vol 3, chapter 7.4.13.5 */
   9.778 -    printk("spurious APIC interrupt on CPU#%d, should never happen.\n",
   9.779 -           smp_processor_id());
   9.780 -}
   9.781 -
   9.782 -/*
   9.783 - * This interrupt should never happen with our APIC/SMP architecture
   9.784 - */
   9.785 -
   9.786 -asmlinkage void smp_error_interrupt(void)
   9.787 -{
   9.788 -    unsigned long v, v1;
   9.789 -
   9.790 -    /* First tickle the hardware, only then report what went on. -- REW */
   9.791 -    v = apic_read(APIC_ESR);
   9.792 -    apic_write(APIC_ESR, 0);
   9.793 -    v1 = apic_read(APIC_ESR);
   9.794 -    ack_APIC_irq();
   9.795 -    atomic_inc(&irq_err_count);
   9.796 -
   9.797 -    /* Here is what the APIC error bits mean:
   9.798 -       0: Send CS error
   9.799 -       1: Receive CS error
   9.800 -       2: Send accept error
   9.801 -       3: Receive accept error
   9.802 -       4: Reserved
   9.803 -       5: Send illegal vector
   9.804 -       6: Received illegal vector
   9.805 -       7: Illegal register address
   9.806 -    */
   9.807 -    printk ("APIC error on CPU%d: %02lx(%02lx)\n",
   9.808 -            smp_processor_id(), v , v1);
   9.809 -}
   9.810 -
   9.811 -/*
   9.812 - * This initializes the IO-APIC and APIC hardware if this is
   9.813 - * a UP kernel.
   9.814 - */
   9.815 -int __init APIC_init_uniprocessor (void)
   9.816 -{
   9.817 -    if (!smp_found_config && !cpu_has_apic)
   9.818 -        return -1;
   9.819 -
   9.820 -    /*
   9.821 -     * Complain if the BIOS pretends there is one.
   9.822 -     */
   9.823 -    if (!cpu_has_apic&&APIC_INTEGRATED(apic_version[boot_cpu_physical_apicid]))
   9.824 -    {
   9.825 -        printk("BIOS bug, local APIC #%d not detected!...\n",
   9.826 -               boot_cpu_physical_apicid);
   9.827 -        return -1;
   9.828 -    }
   9.829 -
   9.830 -    verify_local_APIC();
   9.831 -
   9.832 -    connect_bsp_APIC();
   9.833 -
   9.834 -    phys_cpu_present_map = 1;
   9.835 -    apic_write_around(APIC_ID, boot_cpu_physical_apicid);
   9.836 -
   9.837 -    apic_pm_init2();
   9.838 -
   9.839 -    setup_local_APIC();
   9.840 -
   9.841 -#ifdef CONFIG_X86_IO_APIC
   9.842 -    if (smp_found_config && nr_ioapics)
   9.843 -        setup_IO_APIC();
   9.844 -#endif
   9.845 -    setup_APIC_clocks();
   9.846 -
   9.847 -    return 0;
   9.848 -}

    10.1 --- a/xen-2.4.16/arch/i386/boot/boot.S	Mon Feb 24 16:55:07 2003 +0000
    10.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
    10.3 @@ -1,239 +0,0 @@
    10.4 -#include <xeno/config.h>
    10.5 -#include <asm/page.h>
    10.6 -
    10.7 -#define  SECONDARY_CPU_FLAG 0xA5A5A5A5
    10.8 -                
    10.9 -       	.text
   10.10 -
   10.11 -ENTRY(start)
   10.12 -        jmp hal_entry
   10.13 -
   10.14 -        .align	4
   10.15 -
   10.16 -/*** MULTIBOOT HEADER ****/
   10.17 -        /* Magic number indicating a Multiboot header. */
   10.18 -	.long	0x1BADB002
   10.19 -	/* Flags to bootloader (see Multiboot spec). */
   10.20 -	.long	0x00000006
   10.21 -	/* Checksum: must be the negated sum of the first two fields. */
   10.22 -	.long	-0x1BADB008
   10.23 -        /* Unused loader addresses (ELF header has all this already).*/
   10.24 -        .long   0,0,0,0,0
   10.25 -        /* EGA text mode. */
   10.26 -        .long   1,0,0,0
   10.27 -        
   10.28 -hal_entry:
   10.29 -        /* Set up a few descriptors: on entry only CS is guaranteed good. */
   10.30 -        lgdt    %cs:nopaging_gdt_descr-__PAGE_OFFSET
   10.31 -        mov     $(__HYPERVISOR_DS),%ecx
   10.32 -        mov     %ecx,%ds
   10.33 -        mov     %ecx,%es
   10.34 -        ljmp    $(__HYPERVISOR_CS),$(1f)-__PAGE_OFFSET
   10.35 -1:      lss     stack_start-__PAGE_OFFSET,%esp
   10.36 -
   10.37 -        /* Reset EFLAGS (subsumes CLI and CLD). */
   10.38 -	pushl	$0
   10.39 -	popf
   10.40 -
   10.41 -        /* CPU type checks. We need P6+. */
   10.42 -        mov     $0x200000,%edx
   10.43 -        pushfl
   10.44 -        pop     %ecx
   10.45 -        and     %edx,%ecx
   10.46 -        jne     bad_cpu            # ID bit should be clear
   10.47 -        pushl   %edx
   10.48 -        popfl
   10.49 -        pushfl
   10.50 -        pop     %ecx
   10.51 -        and     %edx,%ecx
   10.52 -        je      bad_cpu            # ID bit should be set
   10.53 -
   10.54 -        /* Set up CR0. */
   10.55 -        mov     %cr0,%ecx
   10.56 -        and     $0x00000011,%ecx   # save ET and PE
   10.57 -        or      $0x00050022,%ecx   # set AM, WP, NE and MP
   10.58 -        mov     %ecx,%cr0
   10.59 -
   10.60 -        /* Set up FPU. */
   10.61 -        fninit
   10.62 -        
   10.63 -        /* Set up CR4, except global flag which Intel requires should be     */
   10.64 -        /* left until after paging is enabled (IA32 Manual Vol. 3, Sec. 2.5) */
   10.65 -        mov     %cr4,%ecx
   10.66 -        or      mmu_cr4_features-__PAGE_OFFSET,%ecx
   10.67 -        mov     %ecx,mmu_cr4_features-__PAGE_OFFSET
   10.68 -        and     $0x7f,%ecx /* disable GLOBAL bit */
   10.69 -        mov     %ecx,%cr4
   10.70 -                
   10.71 -        /* Is this a non-boot processor? */
   10.72 -        cmp     $(SECONDARY_CPU_FLAG),%ebx
   10.73 -        jne     continue_boot_cpu
   10.74 -        
   10.75 -        call    start_paging
   10.76 -        lidt    idt_descr                        
   10.77 -        jmp     initialize_secondary
   10.78 -        
   10.79 -continue_boot_cpu:
   10.80 -        add     $__PAGE_OFFSET,%ebx
   10.81 -	push 	%ebx /* Multiboot info struct */
   10.82 -	push 	%eax /* Multiboot magic value */
   10.83 -
   10.84 -        /* Initialize BSS (no nasty surprises!) */
   10.85 -        mov     $__bss_start-__PAGE_OFFSET,%edi
   10.86 -        mov     $_end-__PAGE_OFFSET,%ecx
   10.87 -        sub     %edi,%ecx
   10.88 -        xor     %eax,%eax
   10.89 -        rep     stosb
   10.90 -
   10.91 -        /* Initialize low and high mappings of all memory with 4MB pages */
   10.92 -        mov     $idle0_pg_table-__PAGE_OFFSET,%edi
   10.93 -        mov     $0x1e3,%eax                  /* PRESENT+RW+A+D+4MB+GLOBAL */
   10.94 -1:      mov     %eax,__PAGE_OFFSET>>20(%edi) /* high mapping */
   10.95 -        stosl                                /* low mapping */
   10.96 -        add     $(1<<L2_PAGETABLE_SHIFT),%eax
   10.97 -        cmp     $MAX_DIRECTMAP_ADDRESS+0x1e3,%eax
   10.98 -        jne     1b
   10.99 -
  10.100 -        call    start_paging        
  10.101 -        call    setup_idt
  10.102 -        lidt    idt_descr
  10.103 -                
  10.104 -        /* Call into main C routine. This should never return.*/
  10.105 -       	call	cmain
  10.106 -        ud2     /* Force a panic (invalid opcode). */
  10.107 -
  10.108 -start_paging:
  10.109 -        mov     $idle0_pg_table-__PAGE_OFFSET,%eax
  10.110 -        mov     %eax,%cr3
  10.111 -        mov     %cr0,%eax
  10.112 -        or      $0x80010000,%eax /* set PG and WP bits */
  10.113 -        mov     %eax,%cr0
  10.114 -        jmp     1f
  10.115 -1:      /* Install relocated selectors (FS/GS unused). */
  10.116 -        lgdt    gdt_descr
  10.117 -        mov     $(__HYPERVISOR_DS),%ecx
  10.118 -        mov     %ecx,%ds
  10.119 -        mov     %ecx,%es
  10.120 -        mov     %ecx,%ss
  10.121 -        ljmp    $(__HYPERVISOR_CS),$1f
  10.122 -1:      /* Paging enabled, so we can now enable GLOBAL mappings in CR4. */
  10.123 -        movl    mmu_cr4_features,%ecx
  10.124 -        movl    %ecx,%cr4
  10.125 -        /* Relocate ESP */
  10.126 -        add     $__PAGE_OFFSET,%esp
  10.127 -        /* Relocate EIP via return jump */
  10.128 -        pop     %ecx
  10.129 -        add     $__PAGE_OFFSET,%ecx
  10.130 -        jmp     *%ecx
  10.131 -    
  10.132 -            
  10.133 -/*** INTERRUPT INITIALISATION ***/
  10.134 -        
  10.135 -setup_idt:
  10.136 -        lea     ignore_int,%edx
  10.137 -        mov     $(__HYPERVISOR_CS << 16),%eax
  10.138 -        mov     %dx,%ax            /* selector = 0x0010 = cs */
  10.139 -        mov     $0x8E00,%dx        /* interrupt gate - dpl=0, present */
  10.140 -
  10.141 -        lea     SYMBOL_NAME(idt_table),%edi
  10.142 -        mov     $256,%ecx
  10.143 -1:      mov     %eax,(%edi)
  10.144 -        mov     %edx,4(%edi)
  10.145 -        add     $8,%edi
  10.146 -        loop    1b
  10.147 -        ret
  10.148 -
  10.149 -/* This is the default interrupt handler. */
  10.150 -int_msg:
  10.151 -        .asciz "Unknown interrupt\n"
  10.152 -        ALIGN
  10.153 -ignore_int:
  10.154 -        cld
  10.155 -        push    %eax
  10.156 -        push    %ecx
  10.157 -        push    %edx
  10.158 -        pushl   %es
  10.159 -        pushl   %ds
  10.160 -        mov     $(__HYPERVISOR_DS),%eax
  10.161 -        mov     %eax,%ds
  10.162 -        mov     %eax,%es
  10.163 -        pushl   $int_msg
  10.164 -        call    SYMBOL_NAME(printf)
  10.165 -1:      jmp     1b
  10.166 -        pop     %eax
  10.167 -        popl    %ds
  10.168 -        popl    %es
  10.169 -        pop     %edx
  10.170 -        pop     %ecx
  10.171 -        pop     %eax
  10.172 -        iret
  10.173 -
  10.174 -
  10.175 -bad_cpu_msg:
  10.176 -        .asciz  "Bad CPU type. Need P6+."
  10.177 -        ALIGN
  10.178 -bad_cpu: 
  10.179 -        call    init_serial
  10.180 -        mov     $bad_cpu_msg,%esi
  10.181 -1:      lodsb
  10.182 -        test    %al,%al
  10.183 -        je      1f
  10.184 -        push    %eax
  10.185 -        call    putchar_serial
  10.186 -        add     $4,%esp
  10.187 -        jmp     1b
  10.188 -1:      jmp     1b
  10.189 -                   
  10.190 -        
  10.191 -/*** STACK LOCATION ***/
  10.192 -        
  10.193 -ENTRY(stack_start)
  10.194 -        .long SYMBOL_NAME(idle0_task_union)+8192-__PAGE_OFFSET
  10.195 -        .long __HYPERVISOR_DS
  10.196 -        
  10.197 -/*** DESCRIPTOR TABLES ***/
  10.198 -
  10.199 -.globl SYMBOL_NAME(idt)
  10.200 -.globl SYMBOL_NAME(gdt)        
  10.201 -
  10.202 -        ALIGN
  10.203 -        
  10.204 -        .word   0    
  10.205 -idt_descr:
  10.206 -	.word	256*8-1
  10.207 -SYMBOL_NAME(idt):
  10.208 -        .long	SYMBOL_NAME(idt_table)
  10.209 -
  10.210 -        .word   0
  10.211 -gdt_descr:
  10.212 -	.word	256*8-1
  10.213 -SYMBOL_NAME(gdt):       
  10.214 -        .long   SYMBOL_NAME(gdt_table)	/* gdt base */
  10.215 -
  10.216 -        .word   0
  10.217 -nopaging_gdt_descr:
  10.218 -        .word   256*8-1
  10.219 -        .long   SYMBOL_NAME(gdt_table)-__PAGE_OFFSET
  10.220 -        
  10.221 -        ALIGN
  10.222 -/* NB. Rings != 0 get access up to 0xFC400000. This allows access to the */
  10.223 -/*     machine->physical mapping table. Ring 0 can access all memory.    */
  10.224 -ENTRY(gdt_table)
  10.225 -        .quad 0x0000000000000000     /* NULL descriptor */
  10.226 -        .quad 0x0000000000000000     /* not used */
  10.227 -        .quad 0x00cfba000000c3ff     /* 0x11 ring 1 3.95GB code at 0x0 */
  10.228 -        .quad 0x00cfb2000000c3ff     /* 0x19 ring 1 3.95GB data at 0x0 */
  10.229 -        .quad 0x00cffa000000c3ff     /* 0x23 ring 3 3.95GB code at 0x0 */
  10.230 -        .quad 0x00cff2000000c3ff     /* 0x2b ring 3 3.95GB data at 0x0 */
  10.231 -        .quad 0x00cf9a000000ffff     /* 0x30 ring 0 4.00GB code at 0x0 */
  10.232 -        .quad 0x00cf92000000ffff     /* 0x38 ring 0 4.00GB data at 0x0 */
  10.233 -        .fill NR_CPUS,8,0             /* space for TSS's */
  10.234 -
  10.235 -# The following adds 12kB to the kernel file size.
  10.236 -        .org 0x1000
  10.237 -ENTRY(idle0_pg_table)
  10.238 -        .org 0x2000
  10.239 -ENTRY(idle0_task_union)
  10.240 -        .org 0x4000
  10.241 -ENTRY(stext)
  10.242 -ENTRY(_stext)

    11.1 --- a/xen-2.4.16/arch/i386/delay.c	Mon Feb 24 16:55:07 2003 +0000
    11.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
    11.3 @@ -1,29 +0,0 @@
    11.4 -/*
    11.5 - *	Precise Delay Loops for i386
    11.6 - *
    11.7 - *	Copyright (C) 1993 Linus Torvalds
    11.8 - *	Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
    11.9 - *
   11.10 - *	The __delay function must _NOT_ be inlined as its execution time
   11.11 - *	depends wildly on alignment on many x86 processors. The additional
   11.12 - *	jump magic is needed to get the timing stable on all the CPU's
   11.13 - *	we have to worry about.
   11.14 - */
   11.15 -
   11.16 -#include <xeno/config.h>
   11.17 -#include <xeno/delay.h>
   11.18 -#include <asm/msr.h>
   11.19 -#include <asm/processor.h>
   11.20 -
   11.21 -void __udelay(unsigned long usecs)
   11.22 -{
   11.23 -    unsigned long ticks = usecs * ticks_per_usec;
   11.24 -    unsigned long s, e;
   11.25 -
   11.26 -    rdtscl(s);
   11.27 -    do
   11.28 -    {
   11.29 -        rep_nop();
   11.30 -        rdtscl(e);
   11.31 -    } while ((e-s) < ticks);
   11.32 -}

    12.1 --- a/xen-2.4.16/arch/i386/entry.S	Mon Feb 24 16:55:07 2003 +0000
    12.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
    12.3 @@ -1,534 +0,0 @@
    12.4 -/*
    12.5 - *  linux/arch/i386/entry.S
    12.6 - *
    12.7 - *  Copyright (C) 1991, 1992  Linus Torvalds
    12.8 - */
    12.9 -
   12.10 -/*
   12.11 - * entry.S contains the system-call and fault low-level handling routines.
   12.12 - * This also contains the timer-interrupt handler, as well as all interrupts
   12.13 - * and faults that can result in a task-switch.
   12.14 - *
   12.15 - * Stack layout in 'ret_from_system_call':
   12.16 - *	 0(%esp) - %ebx
   12.17 - *	 4(%esp) - %ecx
   12.18 - *	 8(%esp) - %edx
   12.19 - *       C(%esp) - %esi
   12.20 - *	10(%esp) - %edi
   12.21 - *	14(%esp) - %ebp
   12.22 - *	18(%esp) - %eax
   12.23 - *	1C(%esp) - %ds
   12.24 - *	20(%esp) - %es
   12.25 - *	24(%esp) - orig_eax
   12.26 - *	28(%esp) - %eip
   12.27 - *	2C(%esp) - %cs
   12.28 - *	30(%esp) - %eflags
   12.29 - *	34(%esp) - %oldesp
   12.30 - *	38(%esp) - %oldss
   12.31 - *
   12.32 - * "current" is in register %ebx during any slow entries.
   12.33 - */
   12.34 -/* The idea for callbacks from monitor -> guest OS.
   12.35 - * 
   12.36 - * First, we require that all callbacks (either via a supplied
   12.37 - * interrupt-descriptor-table, or via the special event or failsafe callbacks
   12.38 - * in the shared-info-structure) are to ring 1. This just makes life easier,
   12.39 - * in that it means we don't have to do messy GDT/LDT lookups to find
   12.40 - * out which the privilege-level of the return code-selector. That code
   12.41 - * would just be a hassle to write, and would need to account for running
   12.42 - * off the end of the GDT/LDT, for example. The event callback has quite
   12.43 - * a constrained callback method: the guest OS provides a linear address
   12.44 - * which we call back to using the hard-coded __GUEST_CS descriptor (which
   12.45 - * is a ring 1 descriptor). For IDT callbacks, we check that the provided
   12.46 - * return CS is not == __HYPERVISOR_{CS,DS}. Apart from that we're safe as
   12.47 - * don't allow a guest OS to install ring-0 privileges into the GDT/LDT.
   12.48 - * It's up to the guest OS to ensure all returns via the IDT are to ring 1.
   12.49 - * If not, we load incorrect SS/ESP values from the TSS (for ring 1 rather
   12.50 - * than the correct ring) and bad things are bound to ensue -- IRET is
   12.51 - * likely to fault, and we may end up killing the domain (no harm can
   12.52 - * come to the hypervisor itself, though).
   12.53 - *      
   12.54 - * When doing a callback, we check if the return CS is in ring 0. If so,
   12.55 - * callback is delayed until next return to ring != 0.
   12.56 - * If return CS is in ring 1, then we create a callback frame
   12.57 - * starting at return SS/ESP. The base of the frame does an intra-privilege
   12.58 - * interrupt-return.
   12.59 - * If return CS is in ring > 1, we create a callback frame starting
   12.60 - * at SS/ESP taken from appropriate section of the current TSS. The base
   12.61 - * of the frame does an inter-privilege interrupt-return.
   12.62 - * 
   12.63 - * Note that the "failsafe callback" uses a special stackframe:
   12.64 - * { return_DS, return_ES, return_EIP, return_CS, return_EFLAGS, ... }
   12.65 - * That is, original values for DS/ES are placed on stack rather than
   12.66 - * in DS/ES themselves. Why? It saves us loading them, only to have them
   12.67 - * saved/restored in guest OS. Furthermore, if we load them we may cause
   12.68 - * a fault if they are invalid, which is a hassle to deal with. We avoid
   12.69 - * that problem if we don't load them :-) This property allows us to use
   12.70 - * the failsafe callback as a fallback: if we ever fault on loading DS/ES
   12.71 - * on return to ring != 0, we can simply package it up as a return via
   12.72 - * the failsafe callback, and let the guest OS sort it out (perhaps by
   12.73 - * killing an application process). Note that we also do this for any
   12.74 - * faulting IRET -- just let the guest OS handle it via the event
   12.75 - * callback.
   12.76 - *
   12.77 - * We terminate a domain in the following cases:
   12.78 - *  - creating a callback stack frame (due to bad ring-1 stack).
   12.79 - *  - faulting IRET on entry to failsafe callback handler.
   12.80 - * So, each domain must keep its ring-1 %ss/%esp and failsafe callback
   12.81 - * handler in good order (absolutely no faults allowed!).
   12.82 - */
   12.83 -
   12.84 -#include <xeno/config.h>
   12.85 -#include <asm/smp.h>
   12.86 -
   12.87 -EBX		= 0x00
   12.88 -ECX		= 0x04
   12.89 -EDX		= 0x08
   12.90 -ESI		= 0x0C
   12.91 -EDI		= 0x10
   12.92 -EBP		= 0x14
   12.93 -EAX		= 0x18
   12.94 -DS		= 0x1C
   12.95 -ES		= 0x20
   12.96 -ORIG_EAX	= 0x24
   12.97 -EIP		= 0x28
   12.98 -CS		= 0x2C
   12.99 -EFLAGS		= 0x30
  12.100 -OLDESP		= 0x34
  12.101 -OLDSS		= 0x38
  12.102 -
  12.103 -/* Offsets in task_struct */
  12.104 -PROCESSOR       =  0
  12.105 -STATE           =  4
  12.106 -HYP_EVENTS      =  8
  12.107 -DOMAIN          = 12        
  12.108 -SHARED_INFO     = 16
  12.109 -
  12.110 -/* Offsets in shared_info_t */
  12.111 -EVENTS          =  0
  12.112 -EVENTS_ENABLE   =  4
  12.113 -EVENT_ADDR      =  8
  12.114 -FAILSAFE_ADDR   = 12
  12.115 -
  12.116 -/* Offsets in guest_trap_bounce */
  12.117 -GTB_ERROR_CODE  =  0
  12.118 -GTB_CR2         =  4
  12.119 -GTB_FLAGS       =  8
  12.120 -GTB_CS          = 10
  12.121 -GTB_EIP         = 12
  12.122 -GTBF_TRAP       =  1
  12.123 -GTBF_TRAP_NOCODE = 2
  12.124 -GTBF_TRAP_CR2   = 4
  12.125 -                        
  12.126 -CF_MASK		= 0x00000001
  12.127 -IF_MASK		= 0x00000200
  12.128 -NT_MASK		= 0x00004000
  12.129 -
  12.130 -#define SAVE_ALL \
  12.131 -	cld; \
  12.132 -	pushl %es; \
  12.133 -	pushl %ds; \
  12.134 -	pushl %eax; \
  12.135 -	pushl %ebp; \
  12.136 -	pushl %edi; \
  12.137 -	pushl %esi; \
  12.138 -	pushl %edx; \
  12.139 -	pushl %ecx; \
  12.140 -	pushl %ebx; \
  12.141 -	movl $(__HYPERVISOR_DS),%edx; \
  12.142 -	movl %edx,%ds; \
  12.143 -	movl %edx,%es;
  12.144 -
  12.145 -#define RESTORE_ALL	\
  12.146 -	popl %ebx;	\
  12.147 -	popl %ecx;	\
  12.148 -	popl %edx;	\
  12.149 -	popl %esi;	\
  12.150 -	popl %edi;	\
  12.151 -	popl %ebp;	\
  12.152 -	popl %eax;	\
  12.153 -1:	popl %ds;	\
  12.154 -2:	popl %es;	\
  12.155 -        addl $4,%esp;	\
  12.156 -3:      iret;		\
  12.157 -.section .fixup,"ax";	\
  12.158 -6:      subl $4,%esp;   \
  12.159 -        pushl %es;      \
  12.160 -5:      pushl %ds;      \
  12.161 -4:      pushl %eax;     \
  12.162 -	pushl %ebp;     \
  12.163 -	pushl %edi;     \
  12.164 -	pushl %esi;     \
  12.165 -	pushl %edx;     \
  12.166 -	pushl %ecx;     \
  12.167 -	pushl %ebx;     \
  12.168 -	pushl %ss;           \
  12.169 -	popl  %ds;           \
  12.170 -	pushl %ss;           \
  12.171 -	popl  %es;           \
  12.172 -	jmp  failsafe_callback;      \
  12.173 -.previous;                           \
  12.174 -.section __ex_table,"a";             \
  12.175 -	.align 4;	             \
  12.176 -	.long 1b,4b;       	     \
  12.177 -	.long 2b,5b;	             \
  12.178 -	.long 3b,6b;	             \
  12.179 -.previous
  12.180 -
  12.181 -#define GET_CURRENT(reg)  \
  12.182 -	movl $-8192, reg; \
  12.183 -	andl %esp, reg
  12.184 -
  12.185 -ENTRY(ret_from_newdomain)
  12.186 -	GET_CURRENT(%ebx)
  12.187 -	jmp test_all_events
  12.188 -
  12.189 -        ALIGN
  12.190 -restore_all:
  12.191 -	RESTORE_ALL
  12.192 -
  12.193 -        ALIGN
  12.194 -ENTRY(hypervisor_call)
  12.195 -        pushl %eax			# save orig_eax
  12.196 -	SAVE_ALL
  12.197 -	GET_CURRENT(%ebx)
  12.198 -	andl $255,%eax
  12.199 -	call *SYMBOL_NAME(hypervisor_call_table)(,%eax,4)
  12.200 -	movl %eax,EAX(%esp)		# save the return value
  12.201 -
  12.202 -test_all_events:
  12.203 -        mov  PROCESSOR(%ebx),%eax
  12.204 -        shl  $4,%eax                    # sizeof(irq_cpustat) == 16
  12.205 -        lea  guest_trap_bounce(%eax),%edx
  12.206 -        cli                             # tests must not race interrupts
  12.207 -        xorl %ecx,%ecx
  12.208 -        notl %ecx
  12.209 -test_softirqs:  
  12.210 -        mov  PROCESSOR(%ebx),%eax
  12.211 -        shl  $4,%eax                    # sizeof(irq_cpustat) == 16
  12.212 -        test %ecx,SYMBOL_NAME(irq_stat)(%eax,1)
  12.213 -        jnz  process_softirqs
  12.214 -test_hyp_events:        
  12.215 -        test %ecx, HYP_EVENTS(%ebx)
  12.216 -        jnz  process_hyp_events
  12.217 -test_guest_events:      
  12.218 -        movl SHARED_INFO(%ebx),%eax
  12.219 -        test %ecx,EVENTS(%eax)
  12.220 -        jz   restore_all
  12.221 -        test %ecx,EVENTS_ENABLE(%eax)
  12.222 -        jz   restore_all
  12.223 -        /* Prevent unnecessary reentry of event callback (stack overflow!) */
  12.224 -        xorl %ecx,%ecx
  12.225 -        movl %ecx,EVENTS_ENABLE(%eax)      
  12.226 -/* %eax == shared_info, %ebx == task_struct, %edx == guest_trap_bounce */
  12.227 -process_guest_events:   
  12.228 -        movl EVENT_ADDR(%eax),%eax
  12.229 -        movl %eax,GTB_EIP(%edx)
  12.230 -        movw $__GUEST_CS,GTB_CS(%edx)
  12.231 -        call create_bounce_frame
  12.232 -        jmp  restore_all
  12.233 -
  12.234 -        ALIGN
  12.235 -process_softirqs:       
  12.236 -        push %edx
  12.237 -        call SYMBOL_NAME(do_softirq)
  12.238 -        pop  %edx
  12.239 -        jmp  test_hyp_events
  12.240 -        
  12.241 -        ALIGN
  12.242 -process_hyp_events:
  12.243 -        sti
  12.244 -        call SYMBOL_NAME(do_hyp_events)
  12.245 -        jmp  test_all_events
  12.246 -
  12.247 -/* No special register assumptions */
  12.248 -failsafe_callback:
  12.249 -        GET_CURRENT(%ebx)
  12.250 -        mov  PROCESSOR(%ebx),%eax
  12.251 -        shl  $4,%eax
  12.252 -        lea  guest_trap_bounce(%eax),%edx
  12.253 -        movl SHARED_INFO(%ebx),%eax
  12.254 -        movl FAILSAFE_ADDR(%eax),%eax
  12.255 -        movl %eax,GTB_EIP(%edx)
  12.256 -        movw $__GUEST_CS,GTB_CS(%edx)
  12.257 -        call create_bounce_frame
  12.258 -        subl $8,%esi                 # add DS/ES to failsafe stack frame
  12.259 -        movl DS(%esp),%eax
  12.260 -FAULT1: movl %eax,(%esi) 
  12.261 -        movl ES(%esp),%eax
  12.262 -FAULT2: movl %eax,4(%esi)
  12.263 -        movl %esi,OLDESP(%esp)
  12.264 -        popl %ebx
  12.265 -        popl %ecx
  12.266 -        popl %edx
  12.267 -        popl %esi
  12.268 -        popl %edi
  12.269 -        popl %ebp
  12.270 -        popl %eax
  12.271 -        addl $12,%esp
  12.272 -FAULT3: iret 
  12.273 -
  12.274 -        
  12.275 -/* CREATE A BASIC EXCEPTION FRAME ON GUEST OS (RING-1) STACK:         */
  12.276 -/*   {EIP, CS, EFLAGS, [ESP, SS]}                                     */
  12.277 -/* %edx == guest_trap_bounce, %ebx == task_struct                     */
  12.278 -/* %eax,%ecx are clobbered. %ds:%esi contain new OLDSS/OLDESP.        */
  12.279 -create_bounce_frame:        
  12.280 -        mov  CS+4(%esp),%cl
  12.281 -        test $2,%cl
  12.282 -        jz   1f /* jump if returning to an existing ring-1 activation */
  12.283 -        /* obtain ss/esp from TSS -- no current ring-1 activations */
  12.284 -        movl PROCESSOR(%ebx),%eax
  12.285 -        shll $8,%eax /* multiply by 256 */
  12.286 -        addl $init_tss + 12,%eax
  12.287 -        movl (%eax),%esi /* tss->esp1 */
  12.288 -FAULT4: movl 4(%eax),%ds /* tss->ss1  */
  12.289 -        /* base of stack frame must contain ss/esp (inter-priv iret) */
  12.290 -        subl $8,%esi
  12.291 -        movl OLDESP+4(%esp),%eax
  12.292 -FAULT5: movl %eax,(%esi) 
  12.293 -        movl OLDSS+4(%esp),%eax
  12.294 -FAULT6: movl %eax,4(%esi) 
  12.295 -        jmp 2f
  12.296 -1:      /* obtain ss/esp from oldss/oldesp -- a ring-1 activation exists */
  12.297 -        movl OLDESP+4(%esp),%esi
  12.298 -FAULT7: movl OLDSS+4(%esp),%ds 
  12.299 -2:      /* Construct a stack frame: EFLAGS, CS/EIP */
  12.300 -        subl $12,%esi
  12.301 -        movl EIP+4(%esp),%eax
  12.302 -FAULT8: movl %eax,(%esi) 
  12.303 -        movl CS+4(%esp),%eax
  12.304 -FAULT9: movl %eax,4(%esi) 
  12.305 -        movl EFLAGS+4(%esp),%eax
  12.306 -FAULT10:movl %eax,8(%esi)
  12.307 -        /* Rewrite our stack frame and return to ring 1. */
  12.308 -        /* IA32 Ref. Vol. 3: TF, VM, RF and NT flags are cleared on trap. */
  12.309 -        andl $0xfffcbeff,%eax
  12.310 -        movl %eax,EFLAGS+4(%esp)
  12.311 -        movl %ds,OLDSS+4(%esp)
  12.312 -        movl %esi,OLDESP+4(%esp)
  12.313 -        movzwl %es:GTB_CS(%edx),%eax
  12.314 -        movl %eax,CS+4(%esp)
  12.315 -        movl %es:GTB_EIP(%edx),%eax
  12.316 -        movl %eax,EIP+4(%esp)
  12.317 -        ret
  12.318 -        
  12.319 -                              
  12.320 -.section __ex_table,"a"
  12.321 -        .align 4
  12.322 -        .long FAULT1, kill_domain_fixup3 # Fault writing to ring-1 stack
  12.323 -        .long FAULT2, kill_domain_fixup3 # Fault writing to ring-1 stack
  12.324 -        .long FAULT3, kill_domain_fixup1 # Fault executing failsafe iret
  12.325 -        .long FAULT4, kill_domain_fixup2 # Fault loading ring-1 stack selector
  12.326 -        .long FAULT5, kill_domain_fixup2 # Fault writing to ring-1 stack
  12.327 -        .long FAULT6, kill_domain_fixup2 # Fault writing to ring-1 stack
  12.328 -        .long FAULT7, kill_domain_fixup2 # Fault loading ring-1 stack selector
  12.329 -        .long FAULT8, kill_domain_fixup2 # Fault writing to ring-1 stack
  12.330 -        .long FAULT9, kill_domain_fixup2 # Fault writing to ring-1 stack
  12.331 -        .long FAULT10,kill_domain_fixup2 # Fault writing to ring-1 stack
  12.332 -        .long FAULT11,kill_domain_fixup3 # Fault writing to ring-1 stack
  12.333 -        .long FAULT12,kill_domain_fixup3 # Fault writing to ring-1 stack
  12.334 -.previous
  12.335 -               
  12.336 -# This handler kills domains which experience unrecoverable faults.
  12.337 -.section .fixup,"ax"
  12.338 -kill_domain_fixup1:
  12.339 -        subl  $4,%esp
  12.340 -        SAVE_ALL
  12.341 -        jmp   kill_domain
  12.342 -kill_domain_fixup2:
  12.343 -        addl  $4,%esp                     
  12.344 -kill_domain_fixup3:
  12.345 -        pushl %ss
  12.346 -        popl  %ds
  12.347 -        jmp   kill_domain
  12.348 -.previous
  12.349 -
  12.350 -        ALIGN
  12.351 -process_guest_exception_and_events:        
  12.352 -        mov  PROCESSOR(%ebx),%eax
  12.353 -        shl  $4,%eax                    # sizeof(irq_cpustat) == 16
  12.354 -        lea  guest_trap_bounce(%eax),%edx
  12.355 -        testb $~0,GTB_FLAGS(%edx)
  12.356 -        jz   test_all_events
  12.357 -        call create_bounce_frame        # just the basic frame
  12.358 -        mov  %es:GTB_FLAGS(%edx),%cl
  12.359 -        test $GTBF_TRAP_NOCODE,%cl
  12.360 -        jnz  2f
  12.361 -        subl $4,%esi                    # push error_code onto guest frame
  12.362 -        movl %es:GTB_ERROR_CODE(%edx),%eax
  12.363 -FAULT11:movl %eax,(%esi)
  12.364 -        test $GTBF_TRAP_CR2,%cl
  12.365 -        jz   1f
  12.366 -        subl $4,%esi                    # push %cr2 onto guest frame
  12.367 -        movl %es:GTB_CR2(%edx),%eax
  12.368 -FAULT12:movl %eax,(%esi)
  12.369 -1:      movl %esi,OLDESP(%esp)        
  12.370 -2:      push %es                        # unclobber %ds
  12.371 -        pop  %ds 
  12.372 -        movb $0,GTB_FLAGS(%edx)
  12.373 -        jmp  test_all_events
  12.374 -
  12.375 -        ALIGN
  12.376 -ENTRY(ret_from_intr)
  12.377 -	GET_CURRENT(%ebx)
  12.378 -        movb CS(%esp),%al
  12.379 -	testb $3,%al	# return to non-supervisor?
  12.380 -	jne test_all_events
  12.381 -	jmp restore_all
  12.382 -
  12.383 -        ALIGN
  12.384 -ret_from_exception:
  12.385 -        movb CS(%esp),%al
  12.386 -	testb $3,%al	# return to non-supervisor?
  12.387 -	jne process_guest_exception_and_events
  12.388 -        jmp restore_all
  12.389 -
  12.390 -	ALIGN
  12.391 -
  12.392 -ENTRY(divide_error)
  12.393 -	pushl $0		# no error code
  12.394 -	pushl $ SYMBOL_NAME(do_divide_error)
  12.395 -	ALIGN
  12.396 -error_code:
  12.397 -	pushl %ds
  12.398 -	pushl %eax
  12.399 -	xorl %eax,%eax
  12.400 -	pushl %ebp
  12.401 -	pushl %edi
  12.402 -	pushl %esi
  12.403 -	pushl %edx
  12.404 -	decl %eax			# eax = -1
  12.405 -	pushl %ecx
  12.406 -	pushl %ebx
  12.407 -	cld
  12.408 -	movl %es,%ecx
  12.409 -	movl ORIG_EAX(%esp), %esi	# get the error code
  12.410 -	movl ES(%esp), %edi		# get the function address
  12.411 -	movl %eax, ORIG_EAX(%esp)
  12.412 -	movl %ecx, ES(%esp)
  12.413 -	movl %esp,%edx
  12.414 -	pushl %esi			# push the error code
  12.415 -	pushl %edx			# push the pt_regs pointer
  12.416 -	movl $(__HYPERVISOR_DS),%edx
  12.417 -	movl %edx,%ds
  12.418 -	movl %edx,%es
  12.419 -	GET_CURRENT(%ebx)
  12.420 -	call *%edi
  12.421 -	addl $8,%esp
  12.422 -	jmp ret_from_exception
  12.423 -
  12.424 -ENTRY(coprocessor_error)
  12.425 -	pushl $0
  12.426 -	pushl $ SYMBOL_NAME(do_coprocessor_error)
  12.427 -	jmp error_code
  12.428 -
  12.429 -ENTRY(simd_coprocessor_error)
  12.430 -	pushl $0
  12.431 -	pushl $ SYMBOL_NAME(do_simd_coprocessor_error)
  12.432 -	jmp error_code
  12.433 -
  12.434 -ENTRY(device_not_available)
  12.435 -	pushl $0
  12.436 -        pushl $SYMBOL_NAME(math_state_restore)
  12.437 -        jmp   error_code
  12.438 -
  12.439 -ENTRY(debug)
  12.440 -	pushl $0
  12.441 -	pushl $ SYMBOL_NAME(do_debug)
  12.442 -	jmp error_code
  12.443 -
  12.444 -ENTRY(nmi)
  12.445 -	pushl %eax
  12.446 -	SAVE_ALL
  12.447 -	movl %esp,%edx
  12.448 -	pushl $0
  12.449 -	pushl %edx
  12.450 -	call SYMBOL_NAME(do_nmi)
  12.451 -	addl $8,%esp
  12.452 -	RESTORE_ALL
  12.453 -
  12.454 -ENTRY(int3)
  12.455 -	pushl $0
  12.456 -	pushl $ SYMBOL_NAME(do_int3)
  12.457 -	jmp error_code
  12.458 -
  12.459 -ENTRY(overflow)
  12.460 -	pushl $0
  12.461 -	pushl $ SYMBOL_NAME(do_overflow)
  12.462 -	jmp error_code
  12.463 -
  12.464 -ENTRY(bounds)
  12.465 -	pushl $0
  12.466 -	pushl $ SYMBOL_NAME(do_bounds)
  12.467 -	jmp error_code
  12.468 -
  12.469 -ENTRY(invalid_op)
  12.470 -	pushl $0
  12.471 -	pushl $ SYMBOL_NAME(do_invalid_op)
  12.472 -	jmp error_code
  12.473 -
  12.474 -ENTRY(coprocessor_segment_overrun)
  12.475 -	pushl $0
  12.476 -	pushl $ SYMBOL_NAME(do_coprocessor_segment_overrun)
  12.477 -	jmp error_code
  12.478 -
  12.479 -ENTRY(double_fault)
  12.480 -	pushl $ SYMBOL_NAME(do_double_fault)
  12.481 -	jmp error_code
  12.482 -
  12.483 -ENTRY(invalid_TSS)
  12.484 -	pushl $ SYMBOL_NAME(do_invalid_TSS)
  12.485 -	jmp error_code
  12.486 -
  12.487 -ENTRY(segment_not_present)
  12.488 -	pushl $ SYMBOL_NAME(do_segment_not_present)
  12.489 -	jmp error_code
  12.490 -
  12.491 -ENTRY(stack_segment)
  12.492 -	pushl $ SYMBOL_NAME(do_stack_segment)
  12.493 -	jmp error_code
  12.494 -
  12.495 -ENTRY(general_protection)
  12.496 -	pushl $ SYMBOL_NAME(do_general_protection)
  12.497 -	jmp error_code
  12.498 -
  12.499 -ENTRY(alignment_check)
  12.500 -	pushl $ SYMBOL_NAME(do_alignment_check)
  12.501 -	jmp error_code
  12.502 -
  12.503 -ENTRY(page_fault)
  12.504 -	pushl $ SYMBOL_NAME(do_page_fault)
  12.505 -	jmp error_code
  12.506 -
  12.507 -ENTRY(machine_check)
  12.508 -	pushl $0
  12.509 -	pushl $ SYMBOL_NAME(do_machine_check)
  12.510 -	jmp error_code
  12.511 -
  12.512 -ENTRY(spurious_interrupt_bug)
  12.513 -	pushl $0
  12.514 -	pushl $ SYMBOL_NAME(do_spurious_interrupt_bug)
  12.515 -	jmp error_code
  12.516 -
  12.517 -.data
  12.518 -ENTRY(hypervisor_call_table)
  12.519 -        .long SYMBOL_NAME(do_set_trap_table)
  12.520 -        .long SYMBOL_NAME(do_process_page_updates)
  12.521 -        .long SYMBOL_NAME(do_console_write)
  12.522 -        .long SYMBOL_NAME(do_set_gdt)
  12.523 -        .long SYMBOL_NAME(do_stack_and_ldt_switch)
  12.524 -        .long SYMBOL_NAME(do_net_update)
  12.525 -        .long SYMBOL_NAME(do_fpu_taskswitch)
  12.526 -        .long SYMBOL_NAME(do_sched_op)
  12.527 -        .long SYMBOL_NAME(kill_domain)
  12.528 -        .long SYMBOL_NAME(do_dom0_op)
  12.529 -        .long SYMBOL_NAME(do_network_op)
  12.530 -        .long SYMBOL_NAME(do_block_io_op)
  12.531 -        .long SYMBOL_NAME(do_set_debugreg)
  12.532 -        .long SYMBOL_NAME(do_get_debugreg)
  12.533 -        .long SYMBOL_NAME(do_update_descriptor)
  12.534 -        .long SYMBOL_NAME(do_set_fast_trap)
  12.535 -        .rept NR_syscalls-(.-hypervisor_call_table)/4
  12.536 -        .long SYMBOL_NAME(sys_ni_syscall)
  12.537 -	.endr

    13.1 --- a/xen-2.4.16/arch/i386/extable.c	Mon Feb 24 16:55:07 2003 +0000
    13.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
    13.3 @@ -1,62 +0,0 @@
    13.4 -/*
    13.5 - * linux/arch/i386/mm/extable.c
    13.6 - */
    13.7 -
    13.8 -#include <linux/config.h>
    13.9 -#include <linux/module.h>
   13.10 -#include <linux/spinlock.h>
   13.11 -#include <asm/uaccess.h>
   13.12 -
   13.13 -extern const struct exception_table_entry __start___ex_table[];
   13.14 -extern const struct exception_table_entry __stop___ex_table[];
   13.15 -
   13.16 -static inline unsigned long
   13.17 -search_one_table(const struct exception_table_entry *first,
   13.18 -		 const struct exception_table_entry *last,
   13.19 -		 unsigned long value)
   13.20 -{
   13.21 -        while (first <= last) {
   13.22 -		const struct exception_table_entry *mid;
   13.23 -		long diff;
   13.24 -
   13.25 -		mid = (last - first) / 2 + first;
   13.26 -		diff = mid->insn - value;
   13.27 -                if (diff == 0)
   13.28 -                        return mid->fixup;
   13.29 -                else if (diff < 0)
   13.30 -                        first = mid+1;
   13.31 -                else
   13.32 -                        last = mid-1;
   13.33 -        }
   13.34 -        return 0;
   13.35 -}
   13.36 -
   13.37 -extern spinlock_t modlist_lock;
   13.38 -
   13.39 -unsigned long
   13.40 -search_exception_table(unsigned long addr)
   13.41 -{
   13.42 -	unsigned long ret = 0;
   13.43 -	
   13.44 -#ifndef CONFIG_MODULES
   13.45 -	/* There is only the kernel to search.  */
   13.46 -	ret = search_one_table(__start___ex_table, __stop___ex_table-1, addr);
   13.47 -	return ret;
   13.48 -#else
   13.49 -	unsigned long flags;
   13.50 -	/* The kernel is the last "module" -- no need to treat it special.  */
   13.51 -	struct module *mp;
   13.52 -
   13.53 -	spin_lock_irqsave(&modlist_lock, flags);
   13.54 -	for (mp = module_list; mp != NULL; mp = mp->next) {
   13.55 -		if (mp->ex_table_start == NULL || !(mp->flags&(MOD_RUNNING|MOD_INITIALIZING)))
   13.56 -			continue;
   13.57 -		ret = search_one_table(mp->ex_table_start,
   13.58 -				       mp->ex_table_end - 1, addr);
   13.59 -		if (ret)
   13.60 -			break;
   13.61 -	}
   13.62 -	spin_unlock_irqrestore(&modlist_lock, flags);
   13.63 -	return ret;
   13.64 -#endif
   13.65 -}

    14.1 --- a/xen-2.4.16/arch/i386/i387.c	Mon Feb 24 16:55:07 2003 +0000
    14.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
    14.3 @@ -1,56 +0,0 @@
    14.4 -/*
    14.5 - *  linux/arch/i386/kernel/i387.c
    14.6 - *
    14.7 - *  Copyright (C) 1994 Linus Torvalds
    14.8 - *
    14.9 - *  Pentium III FXSR, SSE support
   14.10 - *  General FPU state handling cleanups
   14.11 - *	Gareth Hughes <gareth@valinux.com>, May 2000
   14.12 - */
   14.13 -
   14.14 -#include <xeno/config.h>
   14.15 -#include <xeno/sched.h>
   14.16 -#include <asm/processor.h>
   14.17 -#include <asm/i387.h>
   14.18 -
   14.19 -void init_fpu(void)
   14.20 -{
   14.21 -    __asm__("fninit");
   14.22 -    if ( cpu_has_xmm ) load_mxcsr(0x1f80);
   14.23 -    current->flags |= PF_DONEFPUINIT;
   14.24 -}
   14.25 -
   14.26 -static inline void __save_init_fpu( struct task_struct *tsk )
   14.27 -{
   14.28 -    if ( cpu_has_fxsr ) {
   14.29 -        asm volatile( "fxsave %0 ; fnclex"
   14.30 -                      : "=m" (tsk->thread.i387.fxsave) );
   14.31 -    } else {
   14.32 -        asm volatile( "fnsave %0 ; fwait"
   14.33 -                      : "=m" (tsk->thread.i387.fsave) );
   14.34 -    }
   14.35 -    tsk->flags &= ~PF_USEDFPU;
   14.36 -}
   14.37 -
   14.38 -void save_init_fpu( struct task_struct *tsk )
   14.39 -{
   14.40 -    /*
   14.41 -     * The guest OS may have set the 'virtual STTS' flag.
   14.42 -     * This causes us to set the real flag, so we'll need
   14.43 -     * to temporarily clear it while saving f-p state.
   14.44 -     */
   14.45 -    if ( tsk->flags & PF_GUEST_STTS ) clts();
   14.46 -    __save_init_fpu(tsk);
   14.47 -    stts();
   14.48 -}
   14.49 -
   14.50 -void restore_fpu( struct task_struct *tsk )
   14.51 -{
   14.52 -    if ( cpu_has_fxsr ) {
   14.53 -        asm volatile( "fxrstor %0"
   14.54 -                      : : "m" (tsk->thread.i387.fxsave) );
   14.55 -    } else {
   14.56 -        asm volatile( "frstor %0"
   14.57 -                      : : "m" (tsk->thread.i387.fsave) );
   14.58 -    }
   14.59 -}

    15.1 --- a/xen-2.4.16/arch/i386/i8259.c	Mon Feb 24 16:55:07 2003 +0000
    15.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
    15.3 @@ -1,481 +0,0 @@
    15.4 -/******************************************************************************
    15.5 - * i8259.c
    15.6 - * 
    15.7 - * Well, this is required for SMP systems as well, as it build interrupt
    15.8 - * tables for IO APICS as well as uniprocessor 8259-alikes.
    15.9 - */
   15.10 -
   15.11 -#include <xeno/config.h>
   15.12 -#include <xeno/init.h>
   15.13 -#include <asm/ptrace.h>
   15.14 -#include <xeno/errno.h>
   15.15 -#include <xeno/sched.h>
   15.16 -#include <xeno/interrupt.h>
   15.17 -#include <xeno/irq.h>
   15.18 -
   15.19 -#include <asm/atomic.h>
   15.20 -#include <asm/system.h>
   15.21 -#include <asm/io.h>
   15.22 -#include <asm/desc.h>
   15.23 -#include <asm/bitops.h>
   15.24 -#include <xeno/delay.h>
   15.25 -#include <asm/apic.h>
   15.26 -
   15.27 -
   15.28 -/*
   15.29 - * Common place to define all x86 IRQ vectors
   15.30 - *
   15.31 - * This builds up the IRQ handler stubs using some ugly macros in irq.h
   15.32 - *
   15.33 - * These macros create the low-level assembly IRQ routines that save
   15.34 - * register context and call do_IRQ(). do_IRQ() then does all the
   15.35 - * operations that are needed to keep the AT (or SMP IOAPIC)
   15.36 - * interrupt-controller happy.
   15.37 - */
   15.38 -
   15.39 -BUILD_COMMON_IRQ()
   15.40 -
   15.41 -#define BI(x,y) \
   15.42 -	BUILD_IRQ(x##y)
   15.43 -
   15.44 -#define BUILD_16_IRQS(x) \
   15.45 -	BI(x,0) BI(x,1) BI(x,2) BI(x,3) \
   15.46 -	BI(x,4) BI(x,5) BI(x,6) BI(x,7) \
   15.47 -	BI(x,8) BI(x,9) BI(x,a) BI(x,b) \
   15.48 -	BI(x,c) BI(x,d) BI(x,e) BI(x,f)
   15.49 -
   15.50 -/*
   15.51 - * ISA PIC or low IO-APIC triggered (INTA-cycle or APIC) interrupts:
   15.52 - * (these are usually mapped to vectors 0x30-0x3f)
   15.53 - */
   15.54 -    BUILD_16_IRQS(0x0)
   15.55 -
   15.56 -#ifdef CONFIG_X86_IO_APIC
   15.57 -/*
   15.58 - * The IO-APIC gives us many more interrupt sources. Most of these 
   15.59 - * are unused but an SMP system is supposed to have enough memory ...
   15.60 - * sometimes (mostly wrt. hw bugs) we get corrupted vectors all
   15.61 - * across the spectrum, so we really want to be prepared to get all
   15.62 - * of these. Plus, more powerful systems might have more than 64
   15.63 - * IO-APIC registers.
   15.64 - *
   15.65 - * (these are usually mapped into the 0x30-0xff vector range)
   15.66 - */
   15.67 -    BUILD_16_IRQS(0x1) BUILD_16_IRQS(0x2) BUILD_16_IRQS(0x3)
   15.68 -    BUILD_16_IRQS(0x4) BUILD_16_IRQS(0x5) BUILD_16_IRQS(0x6) BUILD_16_IRQS(0x7)
   15.69 -    BUILD_16_IRQS(0x8) BUILD_16_IRQS(0x9) BUILD_16_IRQS(0xa) BUILD_16_IRQS(0xb)
   15.70 -    BUILD_16_IRQS(0xc)
   15.71 -#endif
   15.72 -
   15.73 -#undef BUILD_16_IRQS
   15.74 -#undef BI
   15.75 -
   15.76 -
   15.77 -/*
   15.78 - * The following vectors are part of the Linux architecture, there
   15.79 - * is no hardware IRQ pin equivalent for them, they are triggered
   15.80 - * through the ICC by us (IPIs)
   15.81 - */
   15.82 -#ifdef CONFIG_SMP
   15.83 -    BUILD_SMP_INTERRUPT(event_check_interrupt,EVENT_CHECK_VECTOR)
   15.84 -    BUILD_SMP_INTERRUPT(invalidate_interrupt,INVALIDATE_TLB_VECTOR)
   15.85 -    BUILD_SMP_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR)
   15.86 -#endif
   15.87 -
   15.88 -/*
   15.89 - * every pentium local APIC has two 'local interrupts', with a
   15.90 - * soft-definable vector attached to both interrupts, one of
   15.91 - * which is a timer interrupt, the other one is error counter
   15.92 - * overflow. Linux uses the local APIC timer interrupt to get
   15.93 - * a much simpler SMP time architecture:
   15.94 - */
   15.95 -#ifdef CONFIG_X86_LOCAL_APIC
   15.96 -    BUILD_SMP_TIMER_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR)
   15.97 -    BUILD_SMP_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR)
   15.98 -    BUILD_SMP_INTERRUPT(spurious_interrupt,SPURIOUS_APIC_VECTOR)
   15.99 -#endif
  15.100 -
  15.101 -#define IRQ(x,y) \
  15.102 -	IRQ##x##y##_interrupt
  15.103 -
  15.104 -#define IRQLIST_16(x) \
  15.105 -	IRQ(x,0), IRQ(x,1), IRQ(x,2), IRQ(x,3), \
  15.106 -	IRQ(x,4), IRQ(x,5), IRQ(x,6), IRQ(x,7), \
  15.107 -	IRQ(x,8), IRQ(x,9), IRQ(x,a), IRQ(x,b), \
  15.108 -	IRQ(x,c), IRQ(x,d), IRQ(x,e), IRQ(x,f)
  15.109 -
  15.110 -    void (*interrupt[NR_IRQS])(void) = {
  15.111 -	IRQLIST_16(0x0),
  15.112 -
  15.113 -#ifdef CONFIG_X86_IO_APIC
  15.114 -        IRQLIST_16(0x1), IRQLIST_16(0x2), IRQLIST_16(0x3),
  15.115 -	IRQLIST_16(0x4), IRQLIST_16(0x5), IRQLIST_16(0x6), IRQLIST_16(0x7),
  15.116 -	IRQLIST_16(0x8), IRQLIST_16(0x9), IRQLIST_16(0xa), IRQLIST_16(0xb),
  15.117 -	IRQLIST_16(0xc)
  15.118 -#endif
  15.119 -    };
  15.120 -
  15.121 -#undef IRQ
  15.122 -#undef IRQLIST_16
  15.123 -
  15.124 -/*
  15.125 - * This is the 'legacy' 8259A Programmable Interrupt Controller,
  15.126 - * present in the majority of PC/AT boxes.
  15.127 - * plus some generic x86 specific things if generic specifics makes
  15.128 - * any sense at all.
  15.129 - * this file should become arch/i386/kernel/irq.c when the old irq.c
  15.130 - * moves to arch independent land
  15.131 - */
  15.132 -
  15.133 -spinlock_t i8259A_lock = SPIN_LOCK_UNLOCKED;
  15.134 -
  15.135 -static void end_8259A_irq (unsigned int irq)
  15.136 -{
  15.137 -    if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
  15.138 -        enable_8259A_irq(irq);
  15.139 -}
  15.140 -
  15.141 -#define shutdown_8259A_irq	disable_8259A_irq
  15.142 -
  15.143 -void mask_and_ack_8259A(unsigned int);
  15.144 -
  15.145 -static unsigned int startup_8259A_irq(unsigned int irq)
  15.146 -{ 
  15.147 -    enable_8259A_irq(irq);
  15.148 -    return 0; /* never anything pending */
  15.149 -}
  15.150 -
  15.151 -static struct hw_interrupt_type i8259A_irq_type = {
  15.152 -    "XT-PIC",
  15.153 -    startup_8259A_irq,
  15.154 -    shutdown_8259A_irq,
  15.155 -    enable_8259A_irq,
  15.156 -    disable_8259A_irq,
  15.157 -    mask_and_ack_8259A,
  15.158 -    end_8259A_irq,
  15.159 -    NULL
  15.160 -};
  15.161 -
  15.162 -/*
  15.163 - * 8259A PIC functions to handle ISA devices:
  15.164 - */
  15.165 -
  15.166 -/*
  15.167 - * This contains the irq mask for both 8259A irq controllers,
  15.168 - */
  15.169 -static unsigned int cached_irq_mask = 0xffff;
  15.170 -
  15.171 -#define __byte(x,y) 	(((unsigned char *)&(y))[x])
  15.172 -#define cached_21	(__byte(0,cached_irq_mask))
  15.173 -#define cached_A1	(__byte(1,cached_irq_mask))
  15.174 -
  15.175 -/*
  15.176 - * Not all IRQs can be routed through the IO-APIC, eg. on certain (older)
  15.177 - * boards the timer interrupt is not really connected to any IO-APIC pin,
  15.178 - * it's fed to the master 8259A's IR0 line only.
  15.179 - *
  15.180 - * Any '1' bit in this mask means the IRQ is routed through the IO-APIC.
  15.181 - * this 'mixed mode' IRQ handling costs nothing because it's only used
  15.182 - * at IRQ setup time.
  15.183 - */
  15.184 -unsigned long io_apic_irqs;
  15.185 -
  15.186 -void disable_8259A_irq(unsigned int irq)
  15.187 -{
  15.188 -    unsigned int mask = 1 << irq;
  15.189 -    unsigned long flags;
  15.190 -
  15.191 -    spin_lock_irqsave(&i8259A_lock, flags);
  15.192 -    cached_irq_mask |= mask;
  15.193 -    if (irq & 8)
  15.194 -        outb(cached_A1,0xA1);
  15.195 -    else
  15.196 -        outb(cached_21,0x21);
  15.197 -    spin_unlock_irqrestore(&i8259A_lock, flags);
  15.198 -}
  15.199 -
  15.200 -void enable_8259A_irq(unsigned int irq)
  15.201 -{
  15.202 -    unsigned int mask = ~(1 << irq);
  15.203 -    unsigned long flags;
  15.204 -
  15.205 -    spin_lock_irqsave(&i8259A_lock, flags);
  15.206 -    cached_irq_mask &= mask;
  15.207 -    if (irq & 8)
  15.208 -        outb(cached_A1,0xA1);
  15.209 -    else
  15.210 -        outb(cached_21,0x21);
  15.211 -    spin_unlock_irqrestore(&i8259A_lock, flags);
  15.212 -}
  15.213 -
  15.214 -int i8259A_irq_pending(unsigned int irq)
  15.215 -{
  15.216 -    unsigned int mask = 1<<irq;
  15.217 -    unsigned long flags;
  15.218 -    int ret;
  15.219 -
  15.220 -    spin_lock_irqsave(&i8259A_lock, flags);
  15.221 -    if (irq < 8)
  15.222 -        ret = inb(0x20) & mask;
  15.223 -    else
  15.224 -        ret = inb(0xA0) & (mask >> 8);
  15.225 -    spin_unlock_irqrestore(&i8259A_lock, flags);
  15.226 -
  15.227 -    return ret;
  15.228 -}
  15.229 -
  15.230 -void make_8259A_irq(unsigned int irq)
  15.231 -{
  15.232 -    disable_irq_nosync(irq);
  15.233 -    io_apic_irqs &= ~(1<<irq);
  15.234 -    irq_desc[irq].handler = &i8259A_irq_type;
  15.235 -    enable_irq(irq);
  15.236 -}
  15.237 -
  15.238 -/*
  15.239 - * This function assumes to be called rarely. Switching between
  15.240 - * 8259A registers is slow.
  15.241 - * This has to be protected by the irq controller spinlock
  15.242 - * before being called.
  15.243 - */
  15.244 -static inline int i8259A_irq_real(unsigned int irq)
  15.245 -{
  15.246 -    int value;
  15.247 -    int irqmask = 1<<irq;
  15.248 -
  15.249 -    if (irq < 8) {
  15.250 -        outb(0x0B,0x20);		/* ISR register */
  15.251 -        value = inb(0x20) & irqmask;
  15.252 -        outb(0x0A,0x20);		/* back to the IRR register */
  15.253 -        return value;
  15.254 -    }
  15.255 -    outb(0x0B,0xA0);		/* ISR register */
  15.256 -    value = inb(0xA0) & (irqmask >> 8);
  15.257 -    outb(0x0A,0xA0);		/* back to the IRR register */
  15.258 -    return value;
  15.259 -}
  15.260 -
  15.261 -/*
  15.262 - * Careful! The 8259A is a fragile beast, it pretty
  15.263 - * much _has_ to be done exactly like this (mask it
  15.264 - * first, _then_ send the EOI, and the order of EOI
  15.265 - * to the two 8259s is important!
  15.266 - */
  15.267 -void mask_and_ack_8259A(unsigned int irq)
  15.268 -{
  15.269 -    unsigned int irqmask = 1 << irq;
  15.270 -    unsigned long flags;
  15.271 -
  15.272 -    spin_lock_irqsave(&i8259A_lock, flags);
  15.273 -    /*
  15.274 -     * Lightweight spurious IRQ detection. We do not want
  15.275 -     * to overdo spurious IRQ handling - it's usually a sign
  15.276 -     * of hardware problems, so we only do the checks we can
  15.277 -     * do without slowing down good hardware unnecesserily.
  15.278 -     *
  15.279 -     * Note that IRQ7 and IRQ15 (the two spurious IRQs
  15.280 -     * usually resulting from the 8259A-1|2 PICs) occur
  15.281 -     * even if the IRQ is masked in the 8259A. Thus we
  15.282 -     * can check spurious 8259A IRQs without doing the
  15.283 -     * quite slow i8259A_irq_real() call for every IRQ.
  15.284 -     * This does not cover 100% of spurious interrupts,
  15.285 -     * but should be enough to warn the user that there
  15.286 -     * is something bad going on ...
  15.287 -     */
  15.288 -    if (cached_irq_mask & irqmask)
  15.289 -        goto spurious_8259A_irq;
  15.290 -    cached_irq_mask |= irqmask;
  15.291 -
  15.292 - handle_real_irq:
  15.293 -    if (irq & 8) {
  15.294 -        inb(0xA1);		/* DUMMY - (do we need this?) */
  15.295 -        outb(cached_A1,0xA1);
  15.296 -        outb(0x60+(irq&7),0xA0);/* 'Specific EOI' to slave */
  15.297 -        outb(0x62,0x20);	/* 'Specific EOI' to master-IRQ2 */
  15.298 -    } else {
  15.299 -        inb(0x21);		/* DUMMY - (do we need this?) */
  15.300 -        outb(cached_21,0x21);
  15.301 -        outb(0x60+irq,0x20);	/* 'Specific EOI' to master */
  15.302 -    }
  15.303 -    spin_unlock_irqrestore(&i8259A_lock, flags);
  15.304 -    return;
  15.305 -
  15.306 - spurious_8259A_irq:
  15.307 -    /*
  15.308 -     * this is the slow path - should happen rarely.
  15.309 -     */
  15.310 -    if (i8259A_irq_real(irq))
  15.311 -        /*
  15.312 -         * oops, the IRQ _is_ in service according to the
  15.313 -         * 8259A - not spurious, go handle it.
  15.314 -         */
  15.315 -        goto handle_real_irq;
  15.316 -
  15.317 -    {
  15.318 -        static int spurious_irq_mask;
  15.319 -        /*
  15.320 -         * At this point we can be sure the IRQ is spurious,
  15.321 -         * lets ACK and report it. [once per IRQ]
  15.322 -         */
  15.323 -        if (!(spurious_irq_mask & irqmask)) {
  15.324 -            printk("spurious 8259A interrupt: IRQ%d.\n", irq);
  15.325 -            spurious_irq_mask |= irqmask;
  15.326 -        }
  15.327 -        atomic_inc(&irq_err_count);
  15.328 -        /*
  15.329 -         * Theoretically we do not have to handle this IRQ,
  15.330 -         * but in Linux this does not cause problems and is
  15.331 -         * simpler for us.
  15.332 -         */
  15.333 -        goto handle_real_irq;
  15.334 -    }
  15.335 -}
  15.336 -
  15.337 -void __init init_8259A(int auto_eoi)
  15.338 -{
  15.339 -    unsigned long flags;
  15.340 -
  15.341 -    spin_lock_irqsave(&i8259A_lock, flags);
  15.342 -
  15.343 -    outb(0xff, 0x21);	/* mask all of 8259A-1 */
  15.344 -    outb(0xff, 0xA1);	/* mask all of 8259A-2 */
  15.345 -
  15.346 -    /*
  15.347 -     * outb_p - this has to work on a wide range of PC hardware.
  15.348 -     */
  15.349 -    outb_p(0x11, 0x20);	/* ICW1: select 8259A-1 init */
  15.350 -    outb_p(0x30 + 0, 0x21);	/* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 */
  15.351 -    outb_p(0x04, 0x21);	/* 8259A-1 (the master) has a slave on IR2 */
  15.352 -    if (auto_eoi)
  15.353 -        outb_p(0x03, 0x21);	/* master does Auto EOI */
  15.354 -    else
  15.355 -        outb_p(0x01, 0x21);	/* master expects normal EOI */
  15.356 -
  15.357 -    outb_p(0x11, 0xA0);	/* ICW1: select 8259A-2 init */
  15.358 -    outb_p(0x30 + 8, 0xA1);	/* ICW2: 8259A-2 IR0-7 mapped to 0x38-0x3f */
  15.359 -    outb_p(0x02, 0xA1);	/* 8259A-2 is a slave on master's IR2 */
  15.360 -    outb_p(0x01, 0xA1);	/* (slave's support for AEOI in flat mode
  15.361 -                           is to be investigated) */
  15.362 -
  15.363 -    if (auto_eoi)
  15.364 -        /*
  15.365 -         * in AEOI mode we just have to mask the interrupt
  15.366 -         * when acking.
  15.367 -         */
  15.368 -        i8259A_irq_type.ack = disable_8259A_irq;
  15.369 -    else
  15.370 -        i8259A_irq_type.ack = mask_and_ack_8259A;
  15.371 -
  15.372 -    udelay(100);		/* wait for 8259A to initialize */
  15.373 -
  15.374 -    outb(cached_21, 0x21);	/* restore master IRQ mask */
  15.375 -    outb(cached_A1, 0xA1);	/* restore slave IRQ mask */
  15.376 -
  15.377 -    spin_unlock_irqrestore(&i8259A_lock, flags);
  15.378 -}
  15.379 -
  15.380 -
  15.381 -/*
  15.382 - * IRQ2 is cascade interrupt to second interrupt controller
  15.383 - */
  15.384 -
  15.385 -static struct irqaction irq2 = { no_action, 0, 0, "cascade", NULL, NULL};
  15.386 -
  15.387 -void __init init_ISA_irqs (void)
  15.388 -{
  15.389 -    int i;
  15.390 -
  15.391 -#ifdef CONFIG_X86_LOCAL_APIC
  15.392 -    init_bsp_APIC();
  15.393 -#endif
  15.394 -    init_8259A(0);
  15.395 -
  15.396 -    for (i = 0; i < NR_IRQS; i++) {
  15.397 -        irq_desc[i].status = IRQ_DISABLED;
  15.398 -        irq_desc[i].action = 0;
  15.399 -        irq_desc[i].depth = 1;
  15.400 -
  15.401 -        if (i < 16) {
  15.402 -            /*
  15.403 -             * 16 old-style INTA-cycle interrupts:
  15.404 -             */
  15.405 -            irq_desc[i].handler = &i8259A_irq_type;
  15.406 -        } else {
  15.407 -            /*
  15.408 -             * 'high' PCI IRQs filled in on demand
  15.409 -             */
  15.410 -            irq_desc[i].handler = &no_irq_type;
  15.411 -        }
  15.412 -    }
  15.413 -}
  15.414 -
  15.415 -void __init init_IRQ(void)
  15.416 -{
  15.417 -    int i;
  15.418 -
  15.419 -    init_ISA_irqs();
  15.420 -
  15.421 -    /*
  15.422 -     * Cover the whole vector space, no vector can escape
  15.423 -     * us. (some of these will be overridden and become
  15.424 -     * 'special' SMP interrupts)
  15.425 -     */
  15.426 -    for (i = 0; i < NR_IRQS; i++) {
  15.427 -        int vector = FIRST_EXTERNAL_VECTOR + i;
  15.428 -        if (vector != HYPERVISOR_CALL_VECTOR) 
  15.429 -            set_intr_gate(vector, interrupt[i]);
  15.430 -    }
  15.431 -
  15.432 -#ifdef CONFIG_SMP
  15.433 -    /*
  15.434 -     * IRQ0 must be given a fixed assignment and initialized,
  15.435 -     * because it's used before the IO-APIC is set up.
  15.436 -     */
  15.437 -    set_intr_gate(FIRST_DEVICE_VECTOR, interrupt[0]);
  15.438 -
  15.439 -    /*
  15.440 -     * The reschedule interrupt is a CPU-to-CPU reschedule-helper
  15.441 -     * IPI, driven by wakeup.
  15.442 -     */
  15.443 -    set_intr_gate(EVENT_CHECK_VECTOR, event_check_interrupt);
  15.444 -
  15.445 -    /* IPI for invalidation */
  15.446 -    set_intr_gate(INVALIDATE_TLB_VECTOR, invalidate_interrupt);
  15.447 -
  15.448 -    /* IPI for generic function call */
  15.449 -    set_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt);
  15.450 -#endif	
  15.451 -
  15.452 -#ifdef CONFIG_X86_LOCAL_APIC
  15.453 -    /* self generated IPI for local APIC timer */
  15.454 -    set_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt);
  15.455 -
  15.456 -    /* IPI vectors for APIC spurious and error interrupts */
  15.457 -    set_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt);
  15.458 -    set_intr_gate(ERROR_APIC_VECTOR, error_interrupt);
  15.459 -#endif
  15.460 -
  15.461 -    /*
  15.462 -     * Set the clock to HZ Hz, we already have a valid
  15.463 -     * vector now:
  15.464 -     */
  15.465 -#define CLOCK_TICK_RATE 1193180 /* crystal freq (Hz) */
  15.466 -#define LATCH (((CLOCK_TICK_RATE)+(HZ/2))/HZ)
  15.467 -    outb_p(0x34,0x43);		/* binary, mode 2, LSB/MSB, ch 0 */
  15.468 -    outb_p(LATCH & 0xff , 0x40);	/* LSB */
  15.469 -    outb(LATCH >> 8 , 0x40);	/* MSB */
  15.470 -
  15.471 -    setup_irq(2, &irq2);
  15.472 -}
  15.473 -
  15.474 -/*
  15.475 - * we only need the timer interrupt for callibrating the tsc<->time<->bus cycle
  15.476 - * mappings. After this all timeing related functions should be run of the 
  15.477 - * APIC timers. This function allows us to disable the 
  15.478 - */
  15.479 -void __init disable_pit(void)
  15.480 -{
  15.481 -        printk("Disable PIT. Not needed anymore\n");
  15.482 -        /* This is not the most elegant way, but hey. */
  15.483 -        disable_irq(0);
  15.484 -}