ia64/xen-unstable

annotate tools/firmware/hvmloader/hvmloader.c @ 17430:3105a548e2f5

hvmloader: Fix build with gcc 4.1 and later.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Apr 10 09:12:44 2008 +0100 (2008-04-10)
parents 13cc6b2b8b61
children a1112c23b202
rev   line source
kaf24@8708 1 /*
keir@16992 2 * hvmloader.c: HVM bootloader.
kaf24@8708 3 *
kaf24@8708 4 * Leendert van Doorn, leendert@watson.ibm.com
kaf24@8708 5 * Copyright (c) 2005, International Business Machines Corporation.
kaf24@8708 6 *
kfraser@12554 7 * Copyright (c) 2006, Keir Fraser, XenSource Inc.
kfraser@12554 8 *
kaf24@8708 9 * This program is free software; you can redistribute it and/or modify it
kaf24@8708 10 * under the terms and conditions of the GNU General Public License,
kaf24@8708 11 * version 2, as published by the Free Software Foundation.
kaf24@8708 12 *
kaf24@8708 13 * This program is distributed in the hope it will be useful, but WITHOUT
kaf24@8708 14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
kaf24@8708 15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
kaf24@8708 16 * more details.
kaf24@8708 17 *
kaf24@8708 18 * You should have received a copy of the GNU General Public License along with
kaf24@8708 19 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
kaf24@8708 20 * Place - Suite 330, Boston, MA 02111-1307 USA.
kaf24@8708 21 */
kfraser@14959 22
kaf24@8708 23 #include "roms.h"
kfraser@14959 24 #include "acpi/acpi2_0.h"
kfraser@10976 25 #include "hypercall.h"
kfraser@10976 26 #include "util.h"
kfraser@12548 27 #include "config.h"
kaf24@12571 28 #include "apic_regs.h"
kfraser@12554 29 #include "pci_regs.h"
keir@15303 30 #include "e820.h"
keir@17374 31 #include "option_rom.h"
kfraser@10976 32 #include <xen/version.h>
kfraser@11081 33 #include <xen/hvm/params.h>
kaf24@8708 34
kaf24@8708 35 asm(
kfraser@12548 36 " .text \n"
kfraser@12548 37 " .globl _start \n"
kfraser@12548 38 "_start: \n"
kfraser@14373 39 /* C runtime kickoff. */
kfraser@12548 40 " cld \n"
kfraser@12548 41 " cli \n"
kfraser@14373 42 " movl $stack_top,%esp \n"
kfraser@14373 43 " movl %esp,%ebp \n"
kfraser@14373 44 " call main \n"
kfraser@14373 45 /* Relocate real-mode trampoline to 0x0. */
kfraser@14373 46 " mov $trampoline_start,%esi \n"
kfraser@14373 47 " xor %edi,%edi \n"
kfraser@14373 48 " mov $trampoline_end,%ecx \n"
kfraser@14373 49 " sub %esi,%ecx \n"
kfraser@14373 50 " rep movsb \n"
kfraser@14373 51 /* Load real-mode compatible segment state (base 0x0000, limit 0xffff). */
kfraser@12548 52 " lgdt gdt_desr \n"
kfraser@14373 53 " mov $0x0010,%ax \n"
kfraser@14373 54 " mov %ax,%ds \n"
kfraser@14373 55 " mov %ax,%es \n"
kfraser@14373 56 " mov %ax,%fs \n"
kfraser@14373 57 " mov %ax,%gs \n"
kfraser@14373 58 " mov %ax,%ss \n"
kfraser@14391 59 /* Initialise all 32-bit GPRs to zero. */
kfraser@14391 60 " xor %eax,%eax \n"
kfraser@14391 61 " xor %ebx,%ebx \n"
kfraser@14391 62 " xor %ecx,%ecx \n"
kfraser@14391 63 " xor %edx,%edx \n"
kfraser@14391 64 " xor %esp,%esp \n"
kfraser@14391 65 " xor %ebp,%ebp \n"
kfraser@14391 66 " xor %esi,%esi \n"
kfraser@14391 67 " xor %edi,%edi \n"
kfraser@14373 68 /* Enter real mode, reload all segment registers and IDT. */
kfraser@14391 69 " ljmp $0x8,$0x0 \n"
kfraser@14373 70 "trampoline_start: .code16 \n"
kfraser@14373 71 " mov %eax,%cr0 \n"
kfraser@14373 72 " ljmp $0,$1f-trampoline_start\n"
kfraser@14391 73 "1: mov %ax,%ds \n"
kfraser@14373 74 " mov %ax,%es \n"
kfraser@14373 75 " mov %ax,%fs \n"
kfraser@14373 76 " mov %ax,%gs \n"
kfraser@14373 77 " mov %ax,%ss \n"
kfraser@14373 78 " lidt 1f-trampoline_start \n"
kfraser@14373 79 " ljmp $0xf000,$0xfff0 \n"
kfraser@14373 80 "1: .word 0x3ff,0,0 \n"
kfraser@14373 81 "trampoline_end: .code32 \n"
kfraser@12548 82 " \n"
kfraser@12548 83 "gdt_desr: \n"
kfraser@12548 84 " .word gdt_end - gdt - 1 \n"
kfraser@12548 85 " .long gdt \n"
kfraser@12548 86 " \n"
kfraser@12548 87 " .align 8 \n"
kfraser@12548 88 "gdt: \n"
kfraser@12548 89 " .quad 0x0000000000000000 \n"
kfraser@14373 90 " .quad 0x00009a000000ffff \n" /* Ring 0 code, base 0 limit 0xffff */
kfraser@14373 91 " .quad 0x000092000000ffff \n" /* Ring 0 data, base 0 limit 0xffff */
kfraser@12548 92 "gdt_end: \n"
kfraser@12548 93 " \n"
kfraser@12548 94 " .bss \n"
kfraser@12548 95 " .align 8 \n"
kfraser@12548 96 "stack: \n"
kfraser@12548 97 " .skip 0x4000 \n"
kfraser@12548 98 "stack_top: \n"
kfraser@12548 99 );
kaf24@8708 100
kfraser@14959 101 void create_mp_tables(void);
kfraser@14959 102 int hvm_write_smbios_tables(void);
kaf24@8708 103
kfraser@10976 104 static int
kaf24@8708 105 cirrus_check(void)
kaf24@8708 106 {
kfraser@12548 107 outw(0x3C4, 0x9206);
kfraser@12548 108 return inb(0x3C5) == 0x12;
kaf24@8708 109 }
kaf24@8708 110
kfraser@10976 111 static void
kfraser@10976 112 wrmsr(uint32_t idx, uint64_t v)
kfraser@10976 113 {
kfraser@12548 114 __asm__ __volatile__ (
kfraser@12548 115 "wrmsr"
kfraser@12548 116 : : "c" (idx), "a" ((uint32_t)v), "d" ((uint32_t)(v>>32)) );
kfraser@10976 117 }
kfraser@10976 118
kfraser@10976 119 static void
kfraser@10976 120 init_hypercalls(void)
kfraser@10976 121 {
kfraser@12548 122 uint32_t eax, ebx, ecx, edx;
kfraser@12548 123 unsigned long i;
kfraser@12554 124 char signature[13];
kfraser@12548 125 xen_extraversion_t extraversion;
kfraser@10976 126
kfraser@12548 127 cpuid(0x40000000, &eax, &ebx, &ecx, &edx);
kfraser@10976 128
kfraser@12548 129 *(uint32_t *)(signature + 0) = ebx;
kfraser@12548 130 *(uint32_t *)(signature + 4) = ecx;
kfraser@12548 131 *(uint32_t *)(signature + 8) = edx;
kfraser@12548 132 signature[12] = '\0';
kfraser@10976 133
kfraser@12548 134 if ( strcmp("XenVMMXenVMM", signature) || (eax < 0x40000002) )
kfraser@12548 135 {
kfraser@12554 136 printf("FATAL: Xen hypervisor not detected\n");
kfraser@12548 137 __asm__ __volatile__( "ud2" );
kfraser@12548 138 }
kfraser@10976 139
kfraser@12554 140 /* Fill in hypercall transfer pages. */
kfraser@12548 141 cpuid(0x40000002, &eax, &ebx, &ecx, &edx);
kfraser@12548 142 for ( i = 0; i < eax; i++ )
kfraser@12548 143 wrmsr(ebx, HYPERCALL_PHYSICAL_ADDRESS + (i << 12) + i);
kfraser@12548 144
kfraser@12554 145 /* Print version information. */
kfraser@12554 146 cpuid(0x40000001, &eax, &ebx, &ecx, &edx);
kfraser@12548 147 hypercall_xen_version(XENVER_extraversion, extraversion);
kfraser@12554 148 printf("Detected Xen v%u.%u%s\n", eax >> 16, eax & 0xffff, extraversion);
kfraser@10976 149 }
kfraser@10976 150
kfraser@12548 151 static void apic_setup(void)
kaf24@8708 152 {
kaf24@12571 153 /* Set the IOAPIC ID to tha static value used in the MP/ACPI tables. */
kaf24@12571 154 ioapic_write(0x00, IOAPIC_ID);
kaf24@8708 155
kaf24@12571 156 /* Set up Virtual Wire mode. */
kaf24@12571 157 lapic_write(APIC_SPIV, APIC_SPIV_APIC_ENABLED | 0xFF);
kaf24@12571 158 lapic_write(APIC_LVT0, APIC_MODE_EXTINT << 8);
kaf24@12571 159 lapic_write(APIC_LVT1, APIC_MODE_NMI << 8);
kaf24@8708 160 }
kaf24@8708 161
kfraser@12554 162 static void pci_setup(void)
kfraser@12554 163 {
keir@16835 164 uint32_t base, devfn, bar_reg, bar_data, bar_sz, cmd;
kfraser@12554 165 uint16_t class, vendor_id, device_id;
kfraser@12554 166 unsigned int bar, pin, link, isa_irq;
kfraser@12554 167
keir@16835 168 /* Resources assignable to PCI devices via BARs. */
keir@16835 169 struct resource {
keir@16835 170 uint32_t base, max;
keir@16835 171 } *resource;
keir@16835 172 struct resource mem_resource = { 0xf0000000, 0xfc000000 };
keir@16835 173 struct resource io_resource = { 0xc000, 0x10000 };
keir@16835 174
keir@16834 175 /* Create a list of device BARs in descending order of size. */
keir@16834 176 struct bars {
keir@16834 177 uint32_t devfn, bar_reg, bar_sz;
keir@16834 178 } *bars = (struct bars *)0xc0000;
keir@16834 179 unsigned int i, nr_bars = 0;
keir@16834 180
kfraser@12554 181 /* Program PCI-ISA bridge with appropriate link routes. */
kfraser@15581 182 isa_irq = 0;
kfraser@15581 183 for ( link = 0; link < 4; link++ )
kfraser@12554 184 {
kfraser@15581 185 do { isa_irq = (isa_irq + 1) & 15;
kfraser@15581 186 } while ( !(PCI_ISA_IRQ_MASK & (1U << isa_irq)) );
kfraser@12554 187 pci_writeb(PCI_ISA_DEVFN, 0x60 + link, isa_irq);
kfraser@12554 188 printf("PCI-ISA link %u routed to IRQ%u\n", link, isa_irq);
kfraser@12554 189 }
kfraser@12554 190
kfraser@12554 191 /* Program ELCR to match PCI-wired IRQs. */
kfraser@12554 192 outb(0x4d0, (uint8_t)(PCI_ISA_IRQ_MASK >> 0));
kfraser@12554 193 outb(0x4d1, (uint8_t)(PCI_ISA_IRQ_MASK >> 8));
kfraser@12554 194
kfraser@12554 195 /* Scan the PCI bus and map resources. */
kfraser@12554 196 for ( devfn = 0; devfn < 128; devfn++ )
kfraser@12554 197 {
kfraser@12554 198 class = pci_readw(devfn, PCI_CLASS_DEVICE);
kfraser@12554 199 vendor_id = pci_readw(devfn, PCI_VENDOR_ID);
kfraser@12554 200 device_id = pci_readw(devfn, PCI_DEVICE_ID);
kfraser@12554 201 if ( (vendor_id == 0xffff) && (device_id == 0xffff) )
kfraser@12554 202 continue;
kfraser@12554 203
kfraser@12554 204 ASSERT((devfn != PCI_ISA_DEVFN) ||
kfraser@12554 205 ((vendor_id == 0x8086) && (device_id == 0x7000)));
kfraser@12554 206
kfraser@12554 207 switch ( class )
kfraser@12554 208 {
kfraser@12554 209 case 0x0680:
kfraser@12554 210 ASSERT((vendor_id == 0x8086) && (device_id == 0x7113));
kfraser@12554 211 /*
kfraser@12554 212 * PIIX4 ACPI PM. Special device with special PCI config space.
kfraser@12554 213 * No ordinary BARs.
kfraser@12554 214 */
kfraser@12554 215 pci_writew(devfn, 0x20, 0x0000); /* No smb bus IO enable */
kfraser@12554 216 pci_writew(devfn, 0x22, 0x0000);
kfraser@12554 217 pci_writew(devfn, 0x3c, 0x0009); /* Hardcoded IRQ9 */
kfraser@12554 218 pci_writew(devfn, 0x3d, 0x0001);
kfraser@12554 219 break;
kfraser@12554 220 case 0x0101:
kfraser@12554 221 /* PIIX3 IDE */
kfraser@12554 222 ASSERT((vendor_id == 0x8086) && (device_id == 0x7010));
kfraser@12554 223 pci_writew(devfn, 0x40, 0x8000); /* enable IDE0 */
kfraser@12554 224 pci_writew(devfn, 0x42, 0x8000); /* enable IDE1 */
kfraser@12554 225 /* fall through */
kfraser@12554 226 default:
kfraser@12554 227 /* Default memory mappings. */
kfraser@12554 228 for ( bar = 0; bar < 7; bar++ )
kfraser@12554 229 {
kfraser@12554 230 bar_reg = PCI_BASE_ADDRESS_0 + 4*bar;
kfraser@12554 231 if ( bar == 6 )
kfraser@12554 232 bar_reg = PCI_ROM_ADDRESS;
kfraser@12554 233
kfraser@12554 234 bar_data = pci_readl(devfn, bar_reg);
kfraser@12554 235 pci_writel(devfn, bar_reg, ~0);
kfraser@12554 236 bar_sz = pci_readl(devfn, bar_reg);
keir@16834 237 pci_writel(devfn, bar_reg, bar_data);
kfraser@12554 238 if ( bar_sz == 0 )
kfraser@12554 239 continue;
kfraser@12554 240
keir@16834 241 bar_sz &= (((bar_data & PCI_BASE_ADDRESS_SPACE) ==
keir@16834 242 PCI_BASE_ADDRESS_SPACE_MEMORY) ?
keir@16834 243 PCI_BASE_ADDRESS_MEM_MASK :
keir@16834 244 (PCI_BASE_ADDRESS_IO_MASK & 0xffff));
kfraser@12554 245 bar_sz &= ~(bar_sz - 1);
kfraser@12554 246
keir@16834 247 for ( i = 0; i < nr_bars; i++ )
keir@16834 248 if ( bars[i].bar_sz < bar_sz )
keir@16834 249 break;
kfraser@12554 250
keir@16834 251 if ( i != nr_bars )
keir@16834 252 memmove(&bars[i+1], &bars[i], (nr_bars-i) * sizeof(*bars));
keir@16834 253
keir@16834 254 bars[i].devfn = devfn;
keir@16834 255 bars[i].bar_reg = bar_reg;
keir@16834 256 bars[i].bar_sz = bar_sz;
keir@16834 257
keir@16834 258 nr_bars++;
kfraser@12554 259 }
kfraser@12554 260 break;
kfraser@12554 261 }
kfraser@12554 262
kfraser@12554 263 /* Map the interrupt. */
kfraser@12554 264 pin = pci_readb(devfn, PCI_INTERRUPT_PIN);
kfraser@12554 265 if ( pin != 0 )
kfraser@12554 266 {
kfraser@12554 267 /* This is the barber's pole mapping used by Xen. */
kfraser@12554 268 link = ((pin - 1) + (devfn >> 3)) & 3;
kfraser@12554 269 isa_irq = pci_readb(PCI_ISA_DEVFN, 0x60 + link);
kfraser@12554 270 pci_writeb(devfn, PCI_INTERRUPT_LINE, isa_irq);
kfraser@12554 271 printf("pci dev %02x:%x INT%c->IRQ%u\n",
kfraser@12554 272 devfn>>3, devfn&7, 'A'+pin-1, isa_irq);
kfraser@12554 273 }
kfraser@12554 274 }
keir@16834 275
keir@16834 276 /* Assign iomem and ioport resources in descending order of size. */
keir@16834 277 for ( i = 0; i < nr_bars; i++ )
keir@16834 278 {
keir@16834 279 devfn = bars[i].devfn;
keir@16834 280 bar_reg = bars[i].bar_reg;
keir@16834 281 bar_sz = bars[i].bar_sz;
keir@16834 282
keir@16834 283 bar_data = pci_readl(devfn, bar_reg);
keir@16834 284
keir@16834 285 if ( (bar_data & PCI_BASE_ADDRESS_SPACE) ==
keir@16834 286 PCI_BASE_ADDRESS_SPACE_MEMORY )
keir@16834 287 {
keir@16835 288 resource = &mem_resource;
keir@16834 289 bar_data &= ~PCI_BASE_ADDRESS_MEM_MASK;
keir@16834 290 }
keir@16834 291 else
keir@16834 292 {
keir@16835 293 resource = &io_resource;
keir@16834 294 bar_data &= ~PCI_BASE_ADDRESS_IO_MASK;
keir@16834 295 }
keir@16834 296
keir@16835 297 base = (resource->base + bar_sz - 1) & ~(bar_sz - 1);
keir@16835 298 bar_data |= base;
keir@16835 299 base += bar_sz;
keir@16835 300
keir@16835 301 if ( (base < resource->base) || (base > resource->max) )
keir@16835 302 {
keir@16835 303 printf("pci dev %02x:%x bar %02x size %08x: no space for "
keir@16835 304 "resource!\n", devfn>>3, devfn&7, bar_reg, bar_sz);
keir@16835 305 continue;
keir@16835 306 }
keir@16835 307
keir@16835 308 resource->base = base;
keir@16834 309
keir@16834 310 pci_writel(devfn, bar_reg, bar_data);
keir@16835 311 printf("pci dev %02x:%x bar %02x size %08x: %08x\n",
keir@16835 312 devfn>>3, devfn&7, bar_reg, bar_sz, bar_data);
keir@16834 313
keir@16834 314 /* Now enable the memory or I/O mapping. */
keir@16834 315 cmd = pci_readw(devfn, PCI_COMMAND);
keir@16834 316 if ( (bar_reg == PCI_ROM_ADDRESS) ||
keir@16834 317 ((bar_data & PCI_BASE_ADDRESS_SPACE) ==
keir@16834 318 PCI_BASE_ADDRESS_SPACE_MEMORY) )
keir@16834 319 cmd |= PCI_COMMAND_MEMORY;
keir@16834 320 else
keir@16834 321 cmd |= PCI_COMMAND_IO;
keir@16834 322 pci_writew(devfn, PCI_COMMAND, cmd);
keir@16834 323 }
kfraser@12554 324 }
kfraser@12554 325
keir@16747 326 static int must_load_extboot(void)
keir@16747 327 {
keir@16747 328 return (inb(0x404) == 1);
keir@16747 329 }
keir@16747 330
keir@16960 331 /*
keir@16960 332 * Scan the PCI bus for the first NIC supported by etherboot, and copy
keir@16960 333 * the corresponding rom data to *copy_rom_dest. Returns the length of the
keir@16960 334 * selected rom, or 0 if no NIC found.
keir@16960 335 */
keir@16960 336 static int scan_etherboot_nic(void *copy_rom_dest)
keir@16960 337 {
keir@17374 338 struct option_rom_header *rom;
keir@17374 339 struct option_rom_pnp_header *pnph;
keir@17374 340 struct option_rom_pci_header *pcih;
keir@16960 341 uint32_t devfn;
keir@16960 342 uint16_t class, vendor_id, device_id;
keir@17374 343 uint8_t csum;
keir@17374 344 int i;
keir@16960 345
keir@16960 346 for ( devfn = 0; devfn < 128; devfn++ )
keir@16960 347 {
keir@16960 348 class = pci_readw(devfn, PCI_CLASS_DEVICE);
keir@16960 349 vendor_id = pci_readw(devfn, PCI_VENDOR_ID);
keir@16960 350 device_id = pci_readw(devfn, PCI_DEVICE_ID);
keir@16960 351
keir@16960 352 if ( (vendor_id == 0xffff) && (device_id == 0xffff) )
keir@16960 353 continue;
keir@16960 354
keir@17374 355 /* We're only interested in NICs. */
keir@17374 356 if ( class != 0x0200 )
keir@16960 357 continue;
keir@16960 358
keir@17374 359 rom = (struct option_rom_header *)etherboot;
keir@17374 360 for ( ; ; )
keir@17374 361 {
keir@17374 362 /* Invalid signature means we're out of option ROMs. */
keir@17430 363 if ( strncmp((char *)rom->signature, "\x55\xaa", 2) ||
keir@17374 364 (rom->rom_size == 0) )
keir@17374 365 break;
keir@17374 366
keir@17374 367 /* Invalid checksum means we're out of option ROMs. */
keir@17374 368 csum = 0;
keir@17374 369 for ( i = 0; i < (rom->rom_size * 512); i++ )
keir@17374 370 csum += ((uint8_t *)rom)[i];
keir@17374 371 if ( csum != 0 )
keir@17374 372 break;
keir@17374 373
keir@17374 374 /* Check the PCI PnP header (if any) for a match. */
keir@17374 375 pcih = (struct option_rom_pci_header *)
keir@17374 376 ((char *)rom + rom->pci_header_offset);
keir@17412 377 if ( (rom->pci_header_offset != 0) &&
keir@17430 378 !strncmp((char *)pcih->signature, "PCIR", 4) &&
keir@17412 379 (pcih->vendor_id == vendor_id) &&
keir@17412 380 (pcih->device_id == device_id) )
keir@17412 381 goto found;
keir@17374 382
keir@17412 383 rom = (struct option_rom_header *)
keir@17412 384 ((char *)rom + rom->rom_size * 512);
keir@17374 385 }
keir@16960 386 }
keir@16960 387
keir@16960 388 return 0;
keir@16960 389
keir@16960 390 found:
keir@17412 391 /* Find the PnP expansion header (if any). */
keir@17412 392 pnph = ((rom->expansion_header_offset != 0)
keir@17412 393 ? ((struct option_rom_pnp_header *)
keir@17412 394 ((char *)rom + rom->expansion_header_offset))
keir@17412 395 : ((struct option_rom_pnp_header *)NULL));
keir@17430 396 while ( (pnph != NULL) && strncmp((char *)pnph->signature, "$PnP", 4) )
keir@17412 397 pnph = ((pnph->next_header_offset != 0)
keir@17412 398 ? ((struct option_rom_pnp_header *)
keir@17412 399 ((char *)rom + pnph->next_header_offset))
keir@17412 400 : ((struct option_rom_pnp_header *)NULL));
keir@17412 401
keir@17374 402 printf("Loading PXE ROM ...\n");
keir@17374 403 if ( (pnph != NULL) && (pnph->manufacturer_name_offset != 0) )
keir@17374 404 printf(" - Manufacturer: %s\n",
keir@17374 405 (char *)rom + pnph->manufacturer_name_offset);
keir@17374 406 if ( (pnph != NULL) && (pnph->product_name_offset != 0) )
keir@17374 407 printf(" - Product name: %s\n",
keir@17374 408 (char *)rom + pnph->product_name_offset);
keir@17374 409 memcpy(copy_rom_dest, rom, rom->rom_size * 512);
keir@17374 410 return rom->rom_size * 512;
keir@16960 411 }
keir@16960 412
keir@14449 413 /* Replace possibly erroneous memory-size CMOS fields with correct values. */
keir@14449 414 static void cmos_write_memory_size(void)
keir@14449 415 {
keir@15303 416 struct e820entry *map = HVM_E820;
keir@15303 417 int i, nr = *HVM_E820_NR;
keir@14449 418 uint32_t base_mem = 640, ext_mem = 0, alt_mem = 0;
keir@14449 419
keir@14449 420 for ( i = 0; i < nr; i++ )
keir@14449 421 if ( (map[i].addr >= 0x100000) && (map[i].type == E820_RAM) )
keir@14449 422 break;
keir@14449 423
keir@14449 424 if ( i != nr )
keir@14449 425 {
keir@14449 426 alt_mem = ext_mem = map[i].addr + map[i].size;
keir@14449 427 ext_mem = (ext_mem > 0x0100000) ? (ext_mem - 0x0100000) >> 10 : 0;
keir@14449 428 if ( ext_mem > 0xffff )
keir@14449 429 ext_mem = 0xffff;
keir@14449 430 alt_mem = (alt_mem > 0x1000000) ? (alt_mem - 0x1000000) >> 16 : 0;
keir@14449 431 }
keir@14449 432
keir@14877 433 /* All BIOSes: conventional memory (CMOS *always* reports 640kB). */
keir@14449 434 cmos_outb(0x15, (uint8_t)(base_mem >> 0));
keir@14449 435 cmos_outb(0x16, (uint8_t)(base_mem >> 8));
keir@14449 436
keir@14449 437 /* All BIOSes: extended memory (1kB chunks above 1MB). */
keir@14449 438 cmos_outb(0x17, (uint8_t)( ext_mem >> 0));
keir@14449 439 cmos_outb(0x18, (uint8_t)( ext_mem >> 8));
keir@14449 440 cmos_outb(0x30, (uint8_t)( ext_mem >> 0));
keir@14449 441 cmos_outb(0x31, (uint8_t)( ext_mem >> 8));
keir@14449 442
keir@14449 443 /* Some BIOSes: alternative extended memory (64kB chunks above 16MB). */
keir@14449 444 cmos_outb(0x34, (uint8_t)( alt_mem >> 0));
keir@14449 445 cmos_outb(0x35, (uint8_t)( alt_mem >> 8));
Tim@13140 446 }
Tim@13140 447
kfraser@12548 448 int main(void)
kfraser@12548 449 {
kfraser@14959 450 int acpi_sz = 0, vgabios_sz = 0, etherboot_sz = 0, rombios_sz, smbios_sz;
keir@16747 451 int extboot_sz = 0;
kaf24@12574 452
kfraser@12554 453 printf("HVM Loader\n");
kfraser@12548 454
kfraser@12548 455 init_hypercalls();
kfraser@12548 456
keir@17363 457 printf("CPU speed is %u MHz\n", get_cpu_mhz());
keir@17363 458
kfraser@12554 459 printf("Writing SMBIOS tables ...\n");
kfraser@14959 460 smbios_sz = hvm_write_smbios_tables();
kfraser@12548 461
kfraser@12554 462 printf("Loading ROMBIOS ...\n");
kfraser@14959 463 rombios_sz = sizeof(rombios);
kfraser@14959 464 if ( rombios_sz > 0x10000 )
kfraser@14959 465 rombios_sz = 0x10000;
kfraser@14959 466 memcpy((void *)ROMBIOS_PHYSICAL_ADDRESS, rombios, rombios_sz);
kaf24@13656 467 highbios_setup();
kfraser@12548 468
kfraser@12548 469 apic_setup();
kfraser@12554 470 pci_setup();
kaf24@12574 471
kfraser@12600 472 if ( (get_vcpu_nr() > 1) || get_apic_mode() )
kaf24@12574 473 create_mp_tables();
kfraser@12548 474
kfraser@12548 475 if ( cirrus_check() )
kfraser@12548 476 {
kfraser@12554 477 printf("Loading Cirrus VGABIOS ...\n");
kfraser@12548 478 memcpy((void *)VGABIOS_PHYSICAL_ADDRESS,
kfraser@12548 479 vgabios_cirrusvga, sizeof(vgabios_cirrusvga));
kfraser@14959 480 vgabios_sz = sizeof(vgabios_cirrusvga);
kfraser@12548 481 }
kfraser@12548 482 else
kfraser@12548 483 {
kfraser@12554 484 printf("Loading Standard VGABIOS ...\n");
kfraser@12548 485 memcpy((void *)VGABIOS_PHYSICAL_ADDRESS,
kfraser@12548 486 vgabios_stdvga, sizeof(vgabios_stdvga));
kfraser@14959 487 vgabios_sz = sizeof(vgabios_stdvga);
kfraser@12548 488 }
kfraser@12548 489
keir@16960 490 etherboot_sz = scan_etherboot_nic((void*)ETHERBOOT_PHYSICAL_ADDRESS);
Tim@13140 491
keir@16747 492 if ( must_load_extboot() )
keir@16747 493 {
keir@16747 494 printf("Loading EXTBOOT ...\n");
keir@16747 495 memcpy((void *)EXTBOOT_PHYSICAL_ADDRESS,
keir@16747 496 extboot, sizeof(extboot));
keir@16747 497 extboot_sz = sizeof(extboot);
keir@16747 498 }
keir@16747 499
kfraser@14959 500 if ( get_acpi_enabled() )
kfraser@12548 501 {
kfraser@12554 502 printf("Loading ACPI ...\n");
kaf24@12574 503 acpi_sz = acpi_build_tables((uint8_t *)ACPI_PHYSICAL_ADDRESS);
kfraser@12634 504 ASSERT((ACPI_PHYSICAL_ADDRESS + acpi_sz) <= 0xF0000);
kfraser@12548 505 }
kfraser@12548 506
keir@14449 507 cmos_write_memory_size();
keir@14449 508
kfraser@14959 509 printf("BIOS map:\n");
kfraser@14959 510 if ( vgabios_sz )
kfraser@14959 511 printf(" %05x-%05x: VGA BIOS\n",
kfraser@14959 512 VGABIOS_PHYSICAL_ADDRESS,
kfraser@14959 513 VGABIOS_PHYSICAL_ADDRESS + vgabios_sz - 1);
kfraser@14959 514 if ( etherboot_sz )
kfraser@14959 515 printf(" %05x-%05x: Etherboot ROM\n",
kfraser@14959 516 ETHERBOOT_PHYSICAL_ADDRESS,
kfraser@14959 517 ETHERBOOT_PHYSICAL_ADDRESS + etherboot_sz - 1);
keir@16747 518 if ( extboot_sz )
keir@16747 519 printf(" %05x-%05x: Extboot ROM\n",
keir@16747 520 EXTBOOT_PHYSICAL_ADDRESS,
keir@16747 521 EXTBOOT_PHYSICAL_ADDRESS + extboot_sz - 1);
kfraser@14959 522 if ( smbios_sz )
kfraser@14959 523 printf(" %05x-%05x: SMBIOS tables\n",
kfraser@14959 524 SMBIOS_PHYSICAL_ADDRESS,
kfraser@14959 525 SMBIOS_PHYSICAL_ADDRESS + smbios_sz - 1);
kfraser@14959 526 if ( acpi_sz )
kfraser@14959 527 printf(" %05x-%05x: ACPI tables\n",
kfraser@14959 528 ACPI_PHYSICAL_ADDRESS,
kfraser@14959 529 ACPI_PHYSICAL_ADDRESS + acpi_sz - 1);
kfraser@14959 530 if ( rombios_sz )
kfraser@14959 531 printf(" %05x-%05x: Main BIOS\n",
kfraser@14959 532 ROMBIOS_PHYSICAL_ADDRESS,
kfraser@14959 533 ROMBIOS_PHYSICAL_ADDRESS + rombios_sz - 1);
kfraser@14959 534
kfraser@14373 535 printf("Invoking ROMBIOS ...\n");
kfraser@12548 536 return 0;
kfraser@12548 537 }
kfraser@12548 538
kfraser@12548 539 /*
kfraser@12548 540 * Local variables:
kfraser@12548 541 * mode: C
kfraser@12548 542 * c-set-style: "BSD"
kfraser@12548 543 * c-basic-offset: 4
kfraser@12548 544 * tab-width: 4
kfraser@12548 545 * indent-tabs-mode: nil
kfraser@12548 546 * End:
kfraser@12548 547 */