win-pvdrivers

view common/include/public/xen.h @ 12:5712dede5a1b

add in xen public includes, so the extra step of copying them over is not needed
author Andy Grover <andy@groveronline.com>
date Wed Nov 28 14:44:10 2007 -0800 (2007-11-28)
parents
children b474e898b409
line source
1 /******************************************************************************
2 * xen.h
3 *
4 * Guest OS interface to Xen.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Copyright (c) 2004, K A Fraser
25 */
27 #ifndef __XEN_PUBLIC_XEN_H__
28 #define __XEN_PUBLIC_XEN_H__
30 #include "xen-compat.h"
32 #if defined(__i386__) || defined(__x86_64__)
33 #include "arch-x86/xen.h"
34 #elif defined(__ia64__)
35 #include "arch-ia64.h"
36 #elif defined(__powerpc__)
37 #include "arch-powerpc.h"
38 #else
39 #error "Unsupported architecture"
40 #endif
42 /*
43 * HYPERCALLS
44 */
46 #define __HYPERVISOR_set_trap_table 0
47 #define __HYPERVISOR_mmu_update 1
48 #define __HYPERVISOR_set_gdt 2
49 #define __HYPERVISOR_stack_switch 3
50 #define __HYPERVISOR_set_callbacks 4
51 #define __HYPERVISOR_fpu_taskswitch 5
52 #define __HYPERVISOR_sched_op_compat 6 /* compat since 0x00030101 */
53 #define __HYPERVISOR_platform_op 7
54 #define __HYPERVISOR_set_debugreg 8
55 #define __HYPERVISOR_get_debugreg 9
56 #define __HYPERVISOR_update_descriptor 10
57 #define __HYPERVISOR_memory_op 12
58 #define __HYPERVISOR_multicall 13
59 #define __HYPERVISOR_update_va_mapping 14
60 #define __HYPERVISOR_set_timer_op 15
61 #define __HYPERVISOR_event_channel_op_compat 16 /* compat since 0x00030202 */
62 #define __HYPERVISOR_xen_version 17
63 #define __HYPERVISOR_console_io 18
64 #define __HYPERVISOR_physdev_op_compat 19 /* compat since 0x00030202 */
65 #define __HYPERVISOR_grant_table_op 20
66 #define __HYPERVISOR_vm_assist 21
67 #define __HYPERVISOR_update_va_mapping_otherdomain 22
68 #define __HYPERVISOR_iret 23 /* x86 only */
69 #define __HYPERVISOR_vcpu_op 24
70 #define __HYPERVISOR_set_segment_base 25 /* x86/64 only */
71 #define __HYPERVISOR_mmuext_op 26
72 #define __HYPERVISOR_acm_op 27
73 #define __HYPERVISOR_nmi_op 28
74 #define __HYPERVISOR_sched_op 29
75 #define __HYPERVISOR_callback_op 30
76 #define __HYPERVISOR_xenoprof_op 31
77 #define __HYPERVISOR_event_channel_op 32
78 #define __HYPERVISOR_physdev_op 33
79 #define __HYPERVISOR_hvm_op 34
80 #define __HYPERVISOR_sysctl 35
81 #define __HYPERVISOR_domctl 36
82 #define __HYPERVISOR_kexec_op 37
84 /* Architecture-specific hypercall definitions. */
85 #define __HYPERVISOR_arch_0 48
86 #define __HYPERVISOR_arch_1 49
87 #define __HYPERVISOR_arch_2 50
88 #define __HYPERVISOR_arch_3 51
89 #define __HYPERVISOR_arch_4 52
90 #define __HYPERVISOR_arch_5 53
91 #define __HYPERVISOR_arch_6 54
92 #define __HYPERVISOR_arch_7 55
94 /*
95 * HYPERCALL COMPATIBILITY.
96 */
98 /* New sched_op hypercall introduced in 0x00030101. */
99 #if __XEN_INTERFACE_VERSION__ < 0x00030101
100 #undef __HYPERVISOR_sched_op
101 #define __HYPERVISOR_sched_op __HYPERVISOR_sched_op_compat
102 #endif
104 /* New event-channel and physdev hypercalls introduced in 0x00030202. */
105 #if __XEN_INTERFACE_VERSION__ < 0x00030202
106 #undef __HYPERVISOR_event_channel_op
107 #define __HYPERVISOR_event_channel_op __HYPERVISOR_event_channel_op_compat
108 #undef __HYPERVISOR_physdev_op
109 #define __HYPERVISOR_physdev_op __HYPERVISOR_physdev_op_compat
110 #endif
112 /* New platform_op hypercall introduced in 0x00030204. */
113 #if __XEN_INTERFACE_VERSION__ < 0x00030204
114 #define __HYPERVISOR_dom0_op __HYPERVISOR_platform_op
115 #endif
117 /*
118 * VIRTUAL INTERRUPTS
119 *
120 * Virtual interrupts that a guest OS may receive from Xen.
121 *
122 * In the side comments, 'V.' denotes a per-VCPU VIRQ while 'G.' denotes a
123 * global VIRQ. The former can be bound once per VCPU and cannot be re-bound.
124 * The latter can be allocated only once per guest: they must initially be
125 * allocated to VCPU0 but can subsequently be re-bound.
126 */
127 #define VIRQ_TIMER 0 /* V. Timebase update, and/or requested timeout. */
128 #define VIRQ_DEBUG 1 /* V. Request guest to dump debug info. */
129 #define VIRQ_CONSOLE 2 /* G. (DOM0) Bytes received on emergency console. */
130 #define VIRQ_DOM_EXC 3 /* G. (DOM0) Exceptional event for some domain. */
131 #define VIRQ_TBUF 4 /* G. (DOM0) Trace buffer has records available. */
132 #define VIRQ_DEBUGGER 6 /* G. (DOM0) A domain has paused for debugging. */
133 #define VIRQ_XENOPROF 7 /* V. XenOprofile interrupt: new sample available */
134 #define VIRQ_CON_RING 8 /* G. (DOM0) Bytes received on console */
136 /* Architecture-specific VIRQ definitions. */
137 #define VIRQ_ARCH_0 16
138 #define VIRQ_ARCH_1 17
139 #define VIRQ_ARCH_2 18
140 #define VIRQ_ARCH_3 19
141 #define VIRQ_ARCH_4 20
142 #define VIRQ_ARCH_5 21
143 #define VIRQ_ARCH_6 22
144 #define VIRQ_ARCH_7 23
146 #define NR_VIRQS 24
148 /*
149 * MMU-UPDATE REQUESTS
150 *
151 * HYPERVISOR_mmu_update() accepts a list of (ptr, val) pairs.
152 * A foreigndom (FD) can be specified (or DOMID_SELF for none).
153 * Where the FD has some effect, it is described below.
154 * ptr[1:0] specifies the appropriate MMU_* command.
155 *
156 * ptr[1:0] == MMU_NORMAL_PT_UPDATE:
157 * Updates an entry in a page table. If updating an L1 table, and the new
158 * table entry is valid/present, the mapped frame must belong to the FD, if
159 * an FD has been specified. If attempting to map an I/O page then the
160 * caller assumes the privilege of the FD.
161 * FD == DOMID_IO: Permit /only/ I/O mappings, at the priv level of the caller.
162 * FD == DOMID_XEN: Map restricted areas of Xen's heap space.
163 * ptr[:2] -- Machine address of the page-table entry to modify.
164 * val -- Value to write.
165 *
166 * ptr[1:0] == MMU_MACHPHYS_UPDATE:
167 * Updates an entry in the machine->pseudo-physical mapping table.
168 * ptr[:2] -- Machine address within the frame whose mapping to modify.
169 * The frame must belong to the FD, if one is specified.
170 * val -- Value to write into the mapping entry.
171 */
172 #define MMU_NORMAL_PT_UPDATE 0 /* checked '*ptr = val'. ptr is MA. */
173 #define MMU_MACHPHYS_UPDATE 1 /* ptr = MA of frame to modify entry for */
175 /*
176 * MMU EXTENDED OPERATIONS
177 *
178 * HYPERVISOR_mmuext_op() accepts a list of mmuext_op structures.
179 * A foreigndom (FD) can be specified (or DOMID_SELF for none).
180 * Where the FD has some effect, it is described below.
181 *
182 * cmd: MMUEXT_(UN)PIN_*_TABLE
183 * mfn: Machine frame number to be (un)pinned as a p.t. page.
184 * The frame must belong to the FD, if one is specified.
185 *
186 * cmd: MMUEXT_NEW_BASEPTR
187 * mfn: Machine frame number of new page-table base to install in MMU.
188 *
189 * cmd: MMUEXT_NEW_USER_BASEPTR [x86/64 only]
190 * mfn: Machine frame number of new page-table base to install in MMU
191 * when in user space.
192 *
193 * cmd: MMUEXT_TLB_FLUSH_LOCAL
194 * No additional arguments. Flushes local TLB.
195 *
196 * cmd: MMUEXT_INVLPG_LOCAL
197 * linear_addr: Linear address to be flushed from the local TLB.
198 *
199 * cmd: MMUEXT_TLB_FLUSH_MULTI
200 * vcpumask: Pointer to bitmap of VCPUs to be flushed.
201 *
202 * cmd: MMUEXT_INVLPG_MULTI
203 * linear_addr: Linear address to be flushed.
204 * vcpumask: Pointer to bitmap of VCPUs to be flushed.
205 *
206 * cmd: MMUEXT_TLB_FLUSH_ALL
207 * No additional arguments. Flushes all VCPUs' TLBs.
208 *
209 * cmd: MMUEXT_INVLPG_ALL
210 * linear_addr: Linear address to be flushed from all VCPUs' TLBs.
211 *
212 * cmd: MMUEXT_FLUSH_CACHE
213 * No additional arguments. Writes back and flushes cache contents.
214 *
215 * cmd: MMUEXT_SET_LDT
216 * linear_addr: Linear address of LDT base (NB. must be page-aligned).
217 * nr_ents: Number of entries in LDT.
218 */
219 #define MMUEXT_PIN_L1_TABLE 0
220 #define MMUEXT_PIN_L2_TABLE 1
221 #define MMUEXT_PIN_L3_TABLE 2
222 #define MMUEXT_PIN_L4_TABLE 3
223 #define MMUEXT_UNPIN_TABLE 4
224 #define MMUEXT_NEW_BASEPTR 5
225 #define MMUEXT_TLB_FLUSH_LOCAL 6
226 #define MMUEXT_INVLPG_LOCAL 7
227 #define MMUEXT_TLB_FLUSH_MULTI 8
228 #define MMUEXT_INVLPG_MULTI 9
229 #define MMUEXT_TLB_FLUSH_ALL 10
230 #define MMUEXT_INVLPG_ALL 11
231 #define MMUEXT_FLUSH_CACHE 12
232 #define MMUEXT_SET_LDT 13
233 #define MMUEXT_NEW_USER_BASEPTR 15
235 #ifndef __ASSEMBLY__
236 struct mmuext_op {
237 unsigned int cmd;
238 union {
239 /* [UN]PIN_TABLE, NEW_BASEPTR, NEW_USER_BASEPTR */
240 xen_pfn_t mfn;
241 /* INVLPG_LOCAL, INVLPG_ALL, SET_LDT */
242 unsigned long linear_addr;
243 } arg1;
244 union {
245 /* SET_LDT */
246 unsigned int nr_ents;
247 /* TLB_FLUSH_MULTI, INVLPG_MULTI */
248 XEN_GUEST_HANDLE_00030205(void) vcpumask;
249 } arg2;
250 };
251 typedef struct mmuext_op mmuext_op_t;
252 DEFINE_XEN_GUEST_HANDLE(mmuext_op_t);
253 #endif
255 /* These are passed as 'flags' to update_va_mapping. They can be ORed. */
256 /* When specifying UVMF_MULTI, also OR in a pointer to a CPU bitmap. */
257 /* UVMF_LOCAL is merely UVMF_MULTI with a NULL bitmap pointer. */
258 #define UVMF_NONE (0UL<<0) /* No flushing at all. */
259 #define UVMF_TLB_FLUSH (1UL<<0) /* Flush entire TLB(s). */
260 #define UVMF_INVLPG (2UL<<0) /* Flush only one entry. */
261 #define UVMF_FLUSHTYPE_MASK (3UL<<0)
262 #define UVMF_MULTI (0UL<<2) /* Flush subset of TLBs. */
263 #define UVMF_LOCAL (0UL<<2) /* Flush local TLB. */
264 #define UVMF_ALL (1UL<<2) /* Flush all TLBs. */
266 /*
267 * Commands to HYPERVISOR_console_io().
268 */
269 #define CONSOLEIO_write 0
270 #define CONSOLEIO_read 1
272 /*
273 * Commands to HYPERVISOR_vm_assist().
274 */
275 #define VMASST_CMD_enable 0
276 #define VMASST_CMD_disable 1
278 /* x86/32 guests: simulate full 4GB segment limits. */
279 #define VMASST_TYPE_4gb_segments 0
281 /* x86/32 guests: trap (vector 15) whenever above vmassist is used. */
282 #define VMASST_TYPE_4gb_segments_notify 1
284 /*
285 * x86 guests: support writes to bottom-level PTEs.
286 * NB1. Page-directory entries cannot be written.
287 * NB2. Guest must continue to remove all writable mappings of PTEs.
288 */
289 #define VMASST_TYPE_writable_pagetables 2
291 /* x86/PAE guests: support PDPTs above 4GB. */
292 #define VMASST_TYPE_pae_extended_cr3 3
294 #define MAX_VMASST_TYPE 3
296 #ifndef __ASSEMBLY__
298 typedef uint16_t domid_t;
300 /* Domain ids >= DOMID_FIRST_RESERVED cannot be used for ordinary domains. */
301 #define DOMID_FIRST_RESERVED (0x7FF0U)
303 /* DOMID_SELF is used in certain contexts to refer to oneself. */
304 #define DOMID_SELF (0x7FF0U)
306 /*
307 * DOMID_IO is used to restrict page-table updates to mapping I/O memory.
308 * Although no Foreign Domain need be specified to map I/O pages, DOMID_IO
309 * is useful to ensure that no mappings to the OS's own heap are accidentally
310 * installed. (e.g., in Linux this could cause havoc as reference counts
311 * aren't adjusted on the I/O-mapping code path).
312 * This only makes sense in MMUEXT_SET_FOREIGNDOM, but in that context can
313 * be specified by any calling domain.
314 */
315 #define DOMID_IO (0x7FF1U)
317 /*
318 * DOMID_XEN is used to allow privileged domains to map restricted parts of
319 * Xen's heap space (e.g., the machine_to_phys table).
320 * This only makes sense in MMUEXT_SET_FOREIGNDOM, and is only permitted if
321 * the caller is privileged.
322 */
323 #define DOMID_XEN (0x7FF2U)
325 /*
326 * Send an array of these to HYPERVISOR_mmu_update().
327 * NB. The fields are natural pointer/address size for this architecture.
328 */
329 struct mmu_update {
330 uint64_t ptr; /* Machine address of PTE. */
331 uint64_t val; /* New contents of PTE. */
332 };
333 typedef struct mmu_update mmu_update_t;
334 DEFINE_XEN_GUEST_HANDLE(mmu_update_t);
336 /*
337 * Send an array of these to HYPERVISOR_multicall().
338 * NB. The fields are natural register size for this architecture.
339 */
340 struct multicall_entry {
341 unsigned long op, result;
342 unsigned long args[6];
343 };
344 typedef struct multicall_entry multicall_entry_t;
345 DEFINE_XEN_GUEST_HANDLE(multicall_entry_t);
347 /*
348 * Event channel endpoints per domain:
349 * 1024 if a long is 32 bits; 4096 if a long is 64 bits.
350 */
351 #define NR_EVENT_CHANNELS (sizeof(unsigned long) * sizeof(unsigned long) * 64)
353 struct vcpu_time_info {
354 /*
355 * Updates to the following values are preceded and followed by an
356 * increment of 'version'. The guest can therefore detect updates by
357 * looking for changes to 'version'. If the least-significant bit of
358 * the version number is set then an update is in progress and the guest
359 * must wait to read a consistent set of values.
360 * The correct way to interact with the version number is similar to
361 * Linux's seqlock: see the implementations of read_seqbegin/read_seqretry.
362 */
363 uint32_t version;
364 uint32_t pad0;
365 uint64_t tsc_timestamp; /* TSC at last update of time vals. */
366 uint64_t system_time; /* Time, in nanosecs, since boot. */
367 /*
368 * Current system time:
369 * system_time +
370 * ((((tsc - tsc_timestamp) << tsc_shift) * tsc_to_system_mul) >> 32)
371 * CPU frequency (Hz):
372 * ((10^9 << 32) / tsc_to_system_mul) >> tsc_shift
373 */
374 uint32_t tsc_to_system_mul;
375 int8_t tsc_shift;
376 int8_t pad1[3];
377 }; /* 32 bytes */
378 typedef struct vcpu_time_info vcpu_time_info_t;
380 struct vcpu_info {
381 /*
382 * 'evtchn_upcall_pending' is written non-zero by Xen to indicate
383 * a pending notification for a particular VCPU. It is then cleared
384 * by the guest OS /before/ checking for pending work, thus avoiding
385 * a set-and-check race. Note that the mask is only accessed by Xen
386 * on the CPU that is currently hosting the VCPU. This means that the
387 * pending and mask flags can be updated by the guest without special
388 * synchronisation (i.e., no need for the x86 LOCK prefix).
389 * This may seem suboptimal because if the pending flag is set by
390 * a different CPU then an IPI may be scheduled even when the mask
391 * is set. However, note:
392 * 1. The task of 'interrupt holdoff' is covered by the per-event-
393 * channel mask bits. A 'noisy' event that is continually being
394 * triggered can be masked at source at this very precise
395 * granularity.
396 * 2. The main purpose of the per-VCPU mask is therefore to restrict
397 * reentrant execution: whether for concurrency control, or to
398 * prevent unbounded stack usage. Whatever the purpose, we expect
399 * that the mask will be asserted only for short periods at a time,
400 * and so the likelihood of a 'spurious' IPI is suitably small.
401 * The mask is read before making an event upcall to the guest: a
402 * non-zero mask therefore guarantees that the VCPU will not receive
403 * an upcall activation. The mask is cleared when the VCPU requests
404 * to block: this avoids wakeup-waiting races.
405 */
406 uint8_t evtchn_upcall_pending;
407 uint8_t evtchn_upcall_mask;
408 unsigned long evtchn_pending_sel;
409 struct arch_vcpu_info arch;
410 struct vcpu_time_info time;
411 }; /* 64 bytes (x86) */
412 #ifndef __XEN__
413 typedef struct vcpu_info vcpu_info_t;
414 #endif
416 /*
417 * Xen/kernel shared data -- pointer provided in start_info.
418 *
419 * This structure is defined to be both smaller than a page, and the
420 * only data on the shared page, but may vary in actual size even within
421 * compatible Xen versions; guests should not rely on the size
422 * of this structure remaining constant.
423 */
424 struct shared_info {
425 struct vcpu_info vcpu_info[MAX_VIRT_CPUS];
427 /*
428 * A domain can create "event channels" on which it can send and receive
429 * asynchronous event notifications. There are three classes of event that
430 * are delivered by this mechanism:
431 * 1. Bi-directional inter- and intra-domain connections. Domains must
432 * arrange out-of-band to set up a connection (usually by allocating
433 * an unbound 'listener' port and avertising that via a storage service
434 * such as xenstore).
435 * 2. Physical interrupts. A domain with suitable hardware-access
436 * privileges can bind an event-channel port to a physical interrupt
437 * source.
438 * 3. Virtual interrupts ('events'). A domain can bind an event-channel
439 * port to a virtual interrupt source, such as the virtual-timer
440 * device or the emergency console.
441 *
442 * Event channels are addressed by a "port index". Each channel is
443 * associated with two bits of information:
444 * 1. PENDING -- notifies the domain that there is a pending notification
445 * to be processed. This bit is cleared by the guest.
446 * 2. MASK -- if this bit is clear then a 0->1 transition of PENDING
447 * will cause an asynchronous upcall to be scheduled. This bit is only
448 * updated by the guest. It is read-only within Xen. If a channel
449 * becomes pending while the channel is masked then the 'edge' is lost
450 * (i.e., when the channel is unmasked, the guest must manually handle
451 * pending notifications as no upcall will be scheduled by Xen).
452 *
453 * To expedite scanning of pending notifications, any 0->1 pending
454 * transition on an unmasked channel causes a corresponding bit in a
455 * per-vcpu selector word to be set. Each bit in the selector covers a
456 * 'C long' in the PENDING bitfield array.
457 */
458 unsigned long evtchn_pending[sizeof(unsigned long) * 8];
459 unsigned long evtchn_mask[sizeof(unsigned long) * 8];
461 /*
462 * Wallclock time: updated only by control software. Guests should base
463 * their gettimeofday() syscall on this wallclock-base value.
464 */
465 uint32_t wc_version; /* Version counter: see vcpu_time_info_t. */
466 uint32_t wc_sec; /* Secs 00:00:00 UTC, Jan 1, 1970. */
467 uint32_t wc_nsec; /* Nsecs 00:00:00 UTC, Jan 1, 1970. */
469 struct arch_shared_info arch;
471 };
472 #ifndef __XEN__
473 typedef struct shared_info shared_info_t;
474 #endif
476 /*
477 * Start-of-day memory layout:
478 * 1. The domain is started within contiguous virtual-memory region.
479 * 2. The contiguous region ends on an aligned 4MB boundary.
480 * 3. This the order of bootstrap elements in the initial virtual region:
481 * a. relocated kernel image
482 * b. initial ram disk [mod_start, mod_len]
483 * c. list of allocated page frames [mfn_list, nr_pages]
484 * d. start_info_t structure [register ESI (x86)]
485 * e. bootstrap page tables [pt_base, CR3 (x86)]
486 * f. bootstrap stack [register ESP (x86)]
487 * 4. Bootstrap elements are packed together, but each is 4kB-aligned.
488 * 5. The initial ram disk may be omitted.
489 * 6. The list of page frames forms a contiguous 'pseudo-physical' memory
490 * layout for the domain. In particular, the bootstrap virtual-memory
491 * region is a 1:1 mapping to the first section of the pseudo-physical map.
492 * 7. All bootstrap elements are mapped read-writable for the guest OS. The
493 * only exception is the bootstrap page table, which is mapped read-only.
494 * 8. There is guaranteed to be at least 512kB padding after the final
495 * bootstrap element. If necessary, the bootstrap virtual region is
496 * extended by an extra 4MB to ensure this.
497 */
499 #define MAX_GUEST_CMDLINE 1024
500 struct start_info {
501 /* THE FOLLOWING ARE FILLED IN BOTH ON INITIAL BOOT AND ON RESUME. */
502 char magic[32]; /* "xen-<version>-<platform>". */
503 unsigned long nr_pages; /* Total pages allocated to this domain. */
504 unsigned long shared_info; /* MACHINE address of shared info struct. */
505 uint32_t flags; /* SIF_xxx flags. */
506 xen_pfn_t store_mfn; /* MACHINE page number of shared page. */
507 uint32_t store_evtchn; /* Event channel for store communication. */
508 union {
509 struct {
510 xen_pfn_t mfn; /* MACHINE page number of console page. */
511 uint32_t evtchn; /* Event channel for console page. */
512 } domU;
513 struct {
514 uint32_t info_off; /* Offset of console_info struct. */
515 uint32_t info_size; /* Size of console_info struct from start.*/
516 } dom0;
517 } console;
518 /* THE FOLLOWING ARE ONLY FILLED IN ON INITIAL BOOT (NOT RESUME). */
519 unsigned long pt_base; /* VIRTUAL address of page directory. */
520 unsigned long nr_pt_frames; /* Number of bootstrap p.t. frames. */
521 unsigned long mfn_list; /* VIRTUAL address of page-frame list. */
522 unsigned long mod_start; /* VIRTUAL address of pre-loaded module. */
523 unsigned long mod_len; /* Size (bytes) of pre-loaded module. */
524 int8_t cmd_line[MAX_GUEST_CMDLINE];
525 };
526 typedef struct start_info start_info_t;
528 /* New console union for dom0 introduced in 0x00030203. */
529 #if __XEN_INTERFACE_VERSION__ < 0x00030203
530 #define console_mfn console.domU.mfn
531 #define console_evtchn console.domU.evtchn
532 #endif
534 /* These flags are passed in the 'flags' field of start_info_t. */
535 #define SIF_PRIVILEGED (1<<0) /* Is the domain privileged? */
536 #define SIF_INITDOMAIN (1<<1) /* Is this the initial control domain? */
538 typedef struct dom0_vga_console_info {
539 uint8_t video_type; /* DOM0_VGA_CONSOLE_??? */
540 #define XEN_VGATYPE_TEXT_MODE_3 0x03
541 #define XEN_VGATYPE_VESA_LFB 0x23
543 union {
544 struct {
545 /* Font height, in pixels. */
546 uint16_t font_height;
547 /* Cursor location (column, row). */
548 uint16_t cursor_x, cursor_y;
549 /* Number of rows and columns (dimensions in characters). */
550 uint16_t rows, columns;
551 } text_mode_3;
553 struct {
554 /* Width and height, in pixels. */
555 uint16_t width, height;
556 /* Bytes per scan line. */
557 uint16_t bytes_per_line;
558 /* Bits per pixel. */
559 uint16_t bits_per_pixel;
560 /* LFB physical address, and size (in units of 64kB). */
561 uint32_t lfb_base;
562 uint32_t lfb_size;
563 /* RGB mask offsets and sizes, as defined by VBE 1.2+ */
564 uint8_t red_pos, red_size;
565 uint8_t green_pos, green_size;
566 uint8_t blue_pos, blue_size;
567 uint8_t rsvd_pos, rsvd_size;
568 } vesa_lfb;
569 } u;
570 } dom0_vga_console_info_t;
571 #define xen_vga_console_info dom0_vga_console_info
572 #define xen_vga_console_info_t dom0_vga_console_info_t
574 typedef uint8_t xen_domain_handle_t[16];
576 /* Turn a plain number into a C unsigned long constant. */
577 #define __mk_unsigned_long(x) x ## UL
578 #define mk_unsigned_long(x) __mk_unsigned_long(x)
580 DEFINE_XEN_GUEST_HANDLE(uint8_t);
581 DEFINE_XEN_GUEST_HANDLE(uint16_t);
582 DEFINE_XEN_GUEST_HANDLE(uint32_t);
583 DEFINE_XEN_GUEST_HANDLE(uint64_t);
585 #else /* __ASSEMBLY__ */
587 /* In assembly code we cannot use C numeric constant suffixes. */
588 #define mk_unsigned_long(x) x
590 #endif /* !__ASSEMBLY__ */
592 /* Default definitions for macros used by domctl/sysctl. */
593 #if defined(__XEN__) || defined(__XEN_TOOLS__)
594 #ifndef uint64_aligned_t
595 #define uint64_aligned_t uint64_t
596 #endif
597 #ifndef XEN_GUEST_HANDLE_64
598 #define XEN_GUEST_HANDLE_64(name) XEN_GUEST_HANDLE(name)
599 #endif
600 #endif
602 #endif /* __XEN_PUBLIC_XEN_H__ */
604 /*
605 * Local variables:
606 * mode: C
607 * c-set-style: "BSD"
608 * c-basic-offset: 4
609 * tab-width: 4
610 * indent-tabs-mode: nil
611 * End:
612 */