ia64/xen-unstable

annotate xen/arch/x86/setup.c @ 9067:62309ca8b708

Clean up management of 'initial images' temporary buffers.
Avoid double-freeing boundary pages.

Signed-off-by: Anthony Xu <anthony.xu@intel.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
author kaf24@firebug.cl.cam.ac.uk
date Tue Feb 28 11:58:45 2006 +0100 (2006-02-28)
parents e92dd21483bd
children ec7802acc8c9
rev   line source
kaf24@1452 1
kaf24@1452 2 #include <xen/config.h>
kaf24@1452 3 #include <xen/init.h>
kaf24@1452 4 #include <xen/lib.h>
kaf24@1452 5 #include <xen/sched.h>
cl349@5247 6 #include <xen/domain.h>
kaf24@1452 7 #include <xen/serial.h>
kaf24@1506 8 #include <xen/softirq.h>
kaf24@1452 9 #include <xen/acpi.h>
kaf24@3338 10 #include <xen/console.h>
iap10@4287 11 #include <xen/serial.h>
kaf24@3338 12 #include <xen/trace.h>
kaf24@3338 13 #include <xen/multiboot.h>
kaf24@5356 14 #include <xen/domain_page.h>
iap10@6721 15 #include <xen/compile.h>
iap10@6721 16 #include <public/version.h>
kaf24@1452 17 #include <asm/bitops.h>
kaf24@1452 18 #include <asm/smp.h>
kaf24@1452 19 #include <asm/processor.h>
kaf24@1452 20 #include <asm/mpspec.h>
kaf24@1452 21 #include <asm/apic.h>
kaf24@1452 22 #include <asm/desc.h>
kaf24@3338 23 #include <asm/shadow.h>
kaf24@3344 24 #include <asm/e820.h>
kaf24@5536 25 #include <acm/acm_hooks.h>
kaf24@3338 26
kaf24@5157 27 extern void dmi_scan_machine(void);
kaf24@5211 28 extern void generic_apic_probe(void);
kaf24@5157 29
kaf24@3338 30 /*
kaf24@3338 31 * opt_xenheap_megabytes: Size of Xen heap in megabytes, excluding the
kaf24@8726 32 * page_info table and allocation bitmap.
kaf24@3338 33 */
kaf24@3338 34 static unsigned int opt_xenheap_megabytes = XENHEAP_DEFAULT_MB;
kaf24@4950 35 #if defined(CONFIG_X86_64)
kaf24@3338 36 integer_param("xenheap_megabytes", opt_xenheap_megabytes);
kaf24@3354 37 #endif
kaf24@1452 38
kaf24@5146 39 /* opt_nosmp: If true, secondary processors are ignored. */
kaf24@5900 40 static int opt_nosmp = 0;
kaf24@5146 41 boolean_param("nosmp", opt_nosmp);
kaf24@5146 42
kaf24@5146 43 /* maxcpus: maximum number of CPUs to activate. */
kaf24@5146 44 static unsigned int max_cpus = NR_CPUS;
kaf24@5146 45 integer_param("maxcpus", max_cpus);
kaf24@5146 46
kaf24@3334 47 /* opt_watchdog: If true, run a watchdog NMI on each processor. */
kaf24@3334 48 static int opt_watchdog = 0;
kaf24@3334 49 boolean_param("watchdog", opt_watchdog);
kaf24@3334 50
kaf24@4850 51 /* **** Linux config option: propagated to domain0. */
kaf24@4850 52 /* "acpi=off": Sisables both ACPI table parsing and interpreter. */
kaf24@4850 53 /* "acpi=force": Override the disable blacklist. */
kaf24@4850 54 /* "acpi=strict": Disables out-of-spec workarounds. */
kaf24@4850 55 /* "acpi=ht": Limit ACPI just to boot-time to enable HT. */
kaf24@4850 56 /* "acpi=noirq": Disables ACPI interrupt routing. */
kaf24@4850 57 static void parse_acpi_param(char *s);
kaf24@4850 58 custom_param("acpi", parse_acpi_param);
kaf24@4850 59
kaf24@4850 60 /* **** Linux config option: propagated to domain0. */
kaf24@4850 61 /* acpi_skip_timer_override: Skip IRQ0 overrides. */
kaf24@4850 62 extern int acpi_skip_timer_override;
kaf24@4850 63 boolean_param("acpi_skip_timer_override", acpi_skip_timer_override);
kaf24@4850 64
kaf24@4850 65 /* **** Linux config option: propagated to domain0. */
kaf24@4850 66 /* noapic: Disable IOAPIC setup. */
kaf24@4850 67 extern int skip_ioapic_setup;
kaf24@4850 68 boolean_param("noapic", skip_ioapic_setup);
kaf24@4850 69
kaf24@3594 70 int early_boot = 1;
kaf24@3594 71
kaf24@5146 72 cpumask_t cpu_present_map;
kaf24@5146 73
kaf24@5003 74 /* Limits of Xen heap, used to initialise the allocator. */
kaf24@5003 75 unsigned long xenheap_phys_start, xenheap_phys_end;
kaf24@3338 76
kaf24@2298 77 extern void arch_init_memory(void);
kaf24@1589 78 extern void init_IRQ(void);
kaf24@1589 79 extern void trap_init(void);
kaf24@5604 80 extern void early_time_init(void);
kaf24@5167 81 extern void initialize_keytable(void);
kaf24@5167 82 extern void early_cpu_init(void);
kaf24@1589 83
kaf24@8533 84 struct tss_struct init_tss[NR_CPUS];
kaf24@8533 85
kaf24@8533 86 struct vcpu *idle_vcpu[NR_CPUS];
kaf24@8533 87
kaf24@5011 88 extern unsigned long cpu0_stack[];
kaf24@5011 89
kaf24@5214 90 struct cpuinfo_x86 boot_cpu_data = { 0, 0, 0, 0, -1, 1, 0, 0, -1 };
kaf24@1452 91
kaf24@5237 92 #if CONFIG_PAGING_LEVELS > 2
kaf24@1670 93 unsigned long mmu_cr4_features = X86_CR4_PSE | X86_CR4_PGE | X86_CR4_PAE;
kaf24@1670 94 #else
kaf24@5593 95 unsigned long mmu_cr4_features = X86_CR4_PSE;
kaf24@1670 96 #endif
kaf24@1452 97 EXPORT_SYMBOL(mmu_cr4_features);
kaf24@1452 98
kaf24@4818 99 int acpi_disabled;
kaf24@1452 100
kaf24@4850 101 int acpi_force;
kaf24@4850 102 char acpi_param[10] = "";
kaf24@4850 103 static void parse_acpi_param(char *s)
kaf24@4850 104 {
kaf24@4850 105 /* Save the parameter so it can be propagated to domain0. */
kaf24@4850 106 strncpy(acpi_param, s, sizeof(acpi_param));
kaf24@4850 107 acpi_param[sizeof(acpi_param)-1] = '\0';
kaf24@4850 108
kaf24@4850 109 /* Interpret the parameter for use within Xen. */
kaf24@4850 110 if ( !strcmp(s, "off") )
kaf24@4850 111 {
kaf24@4850 112 disable_acpi();
kaf24@4850 113 }
kaf24@4850 114 else if ( !strcmp(s, "force") )
kaf24@4850 115 {
kaf24@4850 116 acpi_force = 1;
kaf24@4850 117 acpi_ht = 1;
kaf24@4850 118 acpi_disabled = 0;
kaf24@4850 119 }
kaf24@4850 120 else if ( !strcmp(s, "strict") )
kaf24@4850 121 {
kaf24@4850 122 acpi_strict = 1;
kaf24@4850 123 }
kaf24@4850 124 else if ( !strcmp(s, "ht") )
kaf24@4850 125 {
kaf24@4850 126 if ( !acpi_force )
kaf24@4850 127 disable_acpi();
kaf24@4850 128 acpi_ht = 1;
kaf24@4850 129 }
kaf24@4850 130 else if ( !strcmp(s, "noirq") )
kaf24@4850 131 {
kaf24@4850 132 acpi_noirq_set();
kaf24@4850 133 }
kaf24@4850 134 }
kaf24@4850 135
kaf24@1452 136 static void __init do_initcalls(void)
kaf24@1452 137 {
kaf24@1452 138 initcall_t *call;
kaf24@1452 139 for ( call = &__initcall_start; call < &__initcall_end; call++ )
kaf24@1452 140 (*call)();
kaf24@1452 141 }
kaf24@1452 142
kaf24@8459 143 #define EARLY_FAIL() for ( ; ; ) __asm__ __volatile__ ( "hlt" )
kaf24@8459 144
kaf24@8459 145 static struct e820entry e820_raw[E820MAX];
kaf24@8459 146
kaf24@9067 147 static unsigned long initial_images_start, initial_images_end;
kaf24@9067 148
kaf24@9067 149 unsigned long initial_images_nrpages(void)
kaf24@9067 150 {
kaf24@9067 151 unsigned long s = initial_images_start + PAGE_SIZE - 1;
kaf24@9067 152 unsigned long e = initial_images_end;
kaf24@9067 153 return ((e >> PAGE_SHIFT) - (s >> PAGE_SHIFT));
kaf24@9067 154 }
kaf24@9067 155
kaf24@9067 156 void discard_initial_images(void)
kaf24@9067 157 {
kaf24@9067 158 init_domheap_pages(initial_images_start, initial_images_end);
kaf24@9067 159 }
kaf24@9067 160
kaf24@8463 161 void __init __start_xen(multiboot_info_t *mbi)
kaf24@1452 162 {
kaf24@8457 163 char *cmdline;
kaf24@8533 164 struct domain *idle_domain;
kaf24@8457 165 unsigned long _initrd_start = 0, _initrd_len = 0;
kaf24@8457 166 unsigned int initrdidx = 1;
kaf24@8457 167 module_t *mod = (module_t *)__va(mbi->mods_addr);
kaf24@6111 168 unsigned long nr_pages, modules_length;
kaf24@8726 169 paddr_t s, e;
kaf24@8402 170 int i, e820_warn = 0, e820_raw_nr = 0, bytes = 0;
kaf24@5776 171 struct ns16550_defaults ns16550 = {
kaf24@5776 172 .data_bits = 8,
kaf24@5776 173 .parity = 'n',
kaf24@5776 174 .stop_bits = 1
kaf24@5776 175 };
kaf24@3338 176
kaf24@3338 177 /* Parse the command-line options. */
kaf24@3344 178 if ( (mbi->flags & MBI_CMDLINE) && (mbi->cmdline != 0) )
kaf24@5211 179 cmdline_parse(__va(mbi->cmdline));
kaf24@3338 180
kaf24@8534 181 set_current((struct vcpu *)0xfffff000); /* debug sanity */
kaf24@8534 182 set_processor_id(0); /* needed early, for smp_processor_id() */
kaf24@3338 183
kaf24@5146 184 smp_prepare_boot_cpu();
kaf24@5146 185
kaf24@3338 186 /* We initialise the serial devices very early so we can get debugging. */
kaf24@5776 187 ns16550.io_base = 0x3f8;
kaf24@5776 188 ns16550.irq = 4;
kaf24@5776 189 ns16550_init(0, &ns16550);
kaf24@5776 190 ns16550.io_base = 0x2f8;
kaf24@5776 191 ns16550.irq = 3;
kaf24@5776 192 ns16550_init(1, &ns16550);
kaf24@5195 193 serial_init_preirq();
kaf24@3338 194
kaf24@3338 195 init_console();
kaf24@3338 196
kaf24@3344 197 /* Check that we have at least one Multiboot module. */
kaf24@3344 198 if ( !(mbi->flags & MBI_MODULES) || (mbi->mods_count == 0) )
kaf24@3338 199 {
kaf24@5542 200 printk("FATAL ERROR: dom0 kernel not specified."
kaf24@5542 201 " Check bootloader configuration.\n");
kaf24@5011 202 EARLY_FAIL();
kaf24@5011 203 }
kaf24@5011 204
kaf24@5011 205 if ( ((unsigned long)cpu0_stack & (STACK_SIZE-1)) != 0 )
kaf24@5011 206 {
kaf24@5011 207 printk("FATAL ERROR: Misaligned CPU0 stack.\n");
kaf24@5011 208 EARLY_FAIL();
kaf24@3338 209 }
kaf24@3338 210
kaf24@3338 211 xenheap_phys_end = opt_xenheap_megabytes << 20;
kaf24@3338 212
kaf24@3344 213 if ( mbi->flags & MBI_MEMMAP )
kaf24@3344 214 {
kaf24@3344 215 while ( bytes < mbi->mmap_length )
kaf24@3344 216 {
kaf24@3344 217 memory_map_t *map = __va(mbi->mmap_addr + bytes);
kaf24@8402 218
kaf24@8402 219 /*
kaf24@8403 220 * This is a gross workaround for a BIOS bug. Some bootloaders do
kaf24@8402 221 * not write e820 map entries into pre-zeroed memory. This is
kaf24@8402 222 * okay if the BIOS fills in all fields of the map entry, but
kaf24@8402 223 * some broken BIOSes do not bother to write the high word of
kaf24@8402 224 * the length field if the length is smaller than 4GB. We
kaf24@8402 225 * detect and fix this by flagging sections below 4GB that
kaf24@8403 226 * appear to be larger than 4GB in size.
kaf24@8402 227 */
kaf24@8403 228 if ( (map->base_addr_high == 0) && (map->length_high != 0) )
kaf24@8402 229 {
kaf24@8402 230 e820_warn = 1;
kaf24@8402 231 map->length_high = 0;
kaf24@8402 232 }
kaf24@8402 233
kaf24@3344 234 e820_raw[e820_raw_nr].addr =
kaf24@3344 235 ((u64)map->base_addr_high << 32) | (u64)map->base_addr_low;
kaf24@3344 236 e820_raw[e820_raw_nr].size =
kaf24@3344 237 ((u64)map->length_high << 32) | (u64)map->length_low;
kaf24@3344 238 e820_raw[e820_raw_nr].type =
kaf24@3346 239 (map->type > E820_SHARED_PAGE) ? E820_RESERVED : map->type;
kaf24@3344 240 e820_raw_nr++;
kaf24@8402 241
kaf24@3344 242 bytes += map->size + 4;
kaf24@3344 243 }
kaf24@3344 244 }
kaf24@3344 245 else if ( mbi->flags & MBI_MEMLIMITS )
kaf24@3344 246 {
kaf24@3344 247 e820_raw[0].addr = 0;
kaf24@3344 248 e820_raw[0].size = mbi->mem_lower << 10;
kaf24@3344 249 e820_raw[0].type = E820_RAM;
kaf24@3354 250 e820_raw[1].addr = 0x100000;
kaf24@3354 251 e820_raw[1].size = mbi->mem_upper << 10;
kaf24@3354 252 e820_raw[1].type = E820_RAM;
kaf24@3344 253 e820_raw_nr = 2;
kaf24@3344 254 }
kaf24@3344 255 else
kaf24@3344 256 {
kaf24@3344 257 printk("FATAL ERROR: Bootloader provided no memory information.\n");
kaf24@3344 258 for ( ; ; ) ;
kaf24@3344 259 }
kaf24@3344 260
kaf24@8402 261 if ( e820_warn )
kaf24@8402 262 printk("WARNING: Buggy e820 map detected and fixed "
kaf24@8402 263 "(truncated length fields).\n");
kaf24@8402 264
kaf24@4950 265 max_page = init_e820(e820_raw, &e820_raw_nr);
kaf24@3338 266
kaf24@6111 267 modules_length = mod[mbi->mods_count-1].mod_end - mod[0].mod_start;
kaf24@3338 268
kaf24@6111 269 /* Find a large enough RAM extent to stash the DOM0 modules. */
kaf24@6111 270 for ( i = 0; ; i++ )
kaf24@3338 271 {
kaf24@6111 272 if ( i == e820.nr_map )
kaf24@6111 273 {
kaf24@6111 274 printk("Not enough memory to stash the DOM0 kernel image.\n");
kaf24@6111 275 for ( ; ; ) ;
kaf24@6111 276 }
kaf24@6134 277
kaf24@6134 278 if ( (e820.map[i].type == E820_RAM) &&
kaf24@6134 279 (e820.map[i].size >= modules_length) &&
kaf24@6134 280 ((e820.map[i].addr + e820.map[i].size) >=
kaf24@6134 281 (xenheap_phys_end + modules_length)) )
kaf24@6134 282 break;
kaf24@3338 283 }
kaf24@6111 284
kaf24@6134 285 /* Stash as near as possible to the beginning of the RAM extent. */
kaf24@6134 286 initial_images_start = e820.map[i].addr;
kaf24@6134 287 if ( initial_images_start < xenheap_phys_end )
kaf24@6134 288 initial_images_start = xenheap_phys_end;
kaf24@6134 289 initial_images_end = initial_images_start + modules_length;
kaf24@6134 290
kaf24@4950 291 #if defined(CONFIG_X86_32)
kaf24@3338 292 memmove((void *)initial_images_start, /* use low mapping */
kaf24@3338 293 (void *)mod[0].mod_start, /* use low mapping */
kaf24@3338 294 mod[mbi->mods_count-1].mod_end - mod[0].mod_start);
kaf24@4950 295 #elif defined(CONFIG_X86_64)
kaf24@3338 296 memmove(__va(initial_images_start),
kaf24@3338 297 __va(mod[0].mod_start),
kaf24@3338 298 mod[mbi->mods_count-1].mod_end - mod[0].mod_start);
kaf24@3338 299 #endif
kaf24@3338 300
kaf24@3354 301 /* Initialise boot-time allocator with all RAM situated after modules. */
kaf24@5003 302 xenheap_phys_start = init_boot_allocator(__pa(&_end));
kaf24@6111 303 nr_pages = 0;
kaf24@3354 304 for ( i = 0; i < e820.nr_map; i++ )
kaf24@3354 305 {
kaf24@3354 306 if ( e820.map[i].type != E820_RAM )
kaf24@3354 307 continue;
kaf24@6111 308
kaf24@3354 309 nr_pages += e820.map[i].size >> PAGE_SHIFT;
kaf24@6111 310
kaf24@6111 311 /* Initialise boot heap, skipping Xen heap and dom0 modules. */
kaf24@6111 312 s = e820.map[i].addr;
kaf24@6111 313 e = s + e820.map[i].size;
kaf24@6111 314 if ( s < xenheap_phys_end )
kaf24@6111 315 s = xenheap_phys_end;
kaf24@6111 316 if ( (s < initial_images_end) && (e > initial_images_start) )
kaf24@6111 317 s = initial_images_end;
kaf24@6111 318 init_boot_pages(s, e);
kaf24@6111 319
kaf24@5003 320 #if defined (CONFIG_X86_64)
kaf24@5003 321 /*
kaf24@5003 322 * x86/64 maps all registered RAM. Points to note:
kaf24@5003 323 * 1. The initial pagetable already maps low 64MB, so skip that.
kaf24@5003 324 * 2. We must map *only* RAM areas, taking care to avoid I/O holes.
kaf24@5003 325 * Failure to do this can cause coherency problems and deadlocks
kaf24@5003 326 * due to cache-attribute mismatches (e.g., AMD/AGP Linux bug).
kaf24@5003 327 */
kaf24@5003 328 {
kaf24@5004 329 /* Calculate page-frame range, discarding partial frames. */
kaf24@5004 330 unsigned long start, end;
kaf24@5005 331 start = PFN_UP(e820.map[i].addr);
kaf24@5005 332 end = PFN_DOWN(e820.map[i].addr + e820.map[i].size);
kaf24@5004 333 /* Clip the range to above 64MB. */
kaf24@5004 334 if ( end < (64UL << (20-PAGE_SHIFT)) )
kaf24@5004 335 continue;
kaf24@5004 336 if ( start < (64UL << (20-PAGE_SHIFT)) )
kaf24@5004 337 start = 64UL << (20-PAGE_SHIFT);
kaf24@5004 338 /* Request the mapping. */
kaf24@5003 339 map_pages_to_xen(
kaf24@5004 340 PAGE_OFFSET + (start << PAGE_SHIFT),
kaf24@5004 341 start, end-start, PAGE_HYPERVISOR);
kaf24@5003 342 }
kaf24@5003 343 #endif
kaf24@3354 344 }
kaf24@3354 345
kaf24@5003 346 memguard_init();
kaf24@4950 347
kaf24@3354 348 printk("System RAM: %luMB (%lukB)\n",
kaf24@3354 349 nr_pages >> (20 - PAGE_SHIFT),
kaf24@3354 350 nr_pages << (PAGE_SHIFT - 10));
kaf24@7220 351 total_pages = nr_pages;
kaf24@3354 352
kaf24@8679 353 /* Sanity check for unwanted bloat of dom0_op structure. */
kaf24@8679 354 BUG_ON(sizeof(((struct dom0_op *)0)->u) !=
kaf24@8679 355 sizeof(((struct dom0_op *)0)->u.pad));
kaf24@7388 356
kaf24@7744 357 BUG_ON(sizeof(start_info_t) > PAGE_SIZE);
kaf24@7744 358 BUG_ON(sizeof(shared_info_t) > PAGE_SIZE);
kaf24@8108 359 BUG_ON(sizeof(vcpu_info_t) != 64);
kaf24@7744 360
kaf24@8521 361 /* __foo are defined in public headers. Check they match internal defs. */
kaf24@8521 362 BUG_ON(__HYPERVISOR_VIRT_START != HYPERVISOR_VIRT_START);
kaf24@8521 363 #ifdef HYPERVISOR_VIRT_END
kaf24@8521 364 BUG_ON(__HYPERVISOR_VIRT_END != HYPERVISOR_VIRT_END);
kaf24@8521 365 #endif
kaf24@8521 366
kaf24@3354 367 init_frametable();
kaf24@3338 368
kaf24@3354 369 end_boot_allocator();
kaf24@3354 370
kaf24@6111 371 /* Initialise the Xen heap, skipping RAM holes. */
kaf24@6111 372 nr_pages = 0;
kaf24@6111 373 for ( i = 0; i < e820.nr_map; i++ )
kaf24@6111 374 {
kaf24@6111 375 if ( e820.map[i].type != E820_RAM )
kaf24@6111 376 continue;
kaf24@6111 377
kaf24@6111 378 s = e820.map[i].addr;
kaf24@6111 379 e = s + e820.map[i].size;
kaf24@6111 380 if ( s < xenheap_phys_start )
kaf24@6111 381 s = xenheap_phys_start;
kaf24@6111 382 if ( e > xenheap_phys_end )
kaf24@6111 383 e = xenheap_phys_end;
kaf24@6111 384
kaf24@6111 385 if ( s < e )
kaf24@6111 386 {
kaf24@6111 387 nr_pages += (e - s) >> PAGE_SHIFT;
kaf24@6111 388 init_xenheap_pages(s, e);
kaf24@6111 389 }
kaf24@6111 390 }
kaf24@6111 391
kaf24@6111 392 printk("Xen heap: %luMB (%lukB)\n",
kaf24@6111 393 nr_pages >> (20 - PAGE_SHIFT),
kaf24@6111 394 nr_pages << (PAGE_SHIFT - 10));
kaf24@3338 395
kaf24@3594 396 early_boot = 0;
kaf24@3338 397
kaf24@8459 398 early_cpu_init();
kaf24@8459 399
kaf24@8533 400 scheduler_init();
kaf24@8533 401
kaf24@8611 402 idle_domain = domain_create(IDLE_DOMAIN_ID, 0);
kaf24@8533 403 BUG_ON(idle_domain == NULL);
kaf24@8533 404
kaf24@8533 405 set_current(idle_domain->vcpu[0]);
kaf24@8533 406 idle_vcpu[0] = current;
kaf24@8533 407
kaf24@8459 408 paging_init();
kaf24@8459 409
kaf24@8459 410 /* Unmap the first page of CPU0's stack. */
kaf24@8459 411 memguard_guard_stack(cpu0_stack);
kaf24@8459 412
kaf24@8459 413 open_softirq(NEW_TLBFLUSH_CLOCK_PERIOD_SOFTIRQ, new_tlbflush_clock_period);
kaf24@8459 414
kaf24@8459 415 if ( opt_watchdog )
kaf24@8459 416 nmi_watchdog = NMI_LOCAL_APIC;
kaf24@8459 417
kaf24@8459 418 sort_exception_tables();
kaf24@8459 419
kaf24@8459 420 find_smp_config();
kaf24@8459 421
kaf24@8459 422 smp_alloc_memory();
kaf24@8459 423
kaf24@8459 424 dmi_scan_machine();
kaf24@8459 425
kaf24@8459 426 generic_apic_probe();
kaf24@8459 427
kaf24@8459 428 acpi_boot_table_init();
kaf24@8459 429 acpi_boot_init();
kaf24@8459 430
kaf24@8459 431 if ( smp_found_config )
kaf24@8459 432 get_smp_config();
kaf24@8459 433
kaf24@8459 434 init_apic_mappings();
kaf24@8459 435
kaf24@8459 436 init_IRQ();
kaf24@8459 437
kaf24@8459 438 trap_init();
kaf24@8459 439
kaf24@8586 440 timer_init();
kaf24@8459 441
kaf24@8459 442 early_time_init();
kaf24@8459 443
kaf24@8459 444 arch_init_memory();
kaf24@8459 445
kaf24@8459 446 identify_cpu(&boot_cpu_data);
kaf24@8459 447 if ( cpu_has_fxsr )
kaf24@8459 448 set_in_cr4(X86_CR4_OSFXSR);
kaf24@8459 449 if ( cpu_has_xmm )
kaf24@8459 450 set_in_cr4(X86_CR4_OSXMMEXCPT);
kaf24@8459 451
kaf24@8459 452 if ( opt_nosmp )
kaf24@8459 453 max_cpus = 0;
kaf24@8459 454
kaf24@8459 455 smp_prepare_cpus(max_cpus);
kaf24@8459 456
kaf24@8459 457 /*
kaf24@8459 458 * Initialise higher-level timer functions. We do this fairly late
kaf24@8459 459 * (post-SMP) because the time bases and scale factors need to be updated
kaf24@8459 460 * regularly, and SMP initialisation can cause a long delay with
kaf24@8459 461 * interrupts not yet enabled.
kaf24@8459 462 */
kaf24@8459 463 init_xen_time();
kaf24@8459 464
kaf24@8459 465 initialize_keytable();
kaf24@8459 466
kaf24@8459 467 serial_init_postirq();
kaf24@8459 468
kaf24@8459 469 BUG_ON(!local_irq_is_enabled());
kaf24@8459 470
kaf24@8459 471 for_each_present_cpu ( i )
kaf24@8459 472 {
kaf24@8459 473 if ( num_online_cpus() >= max_cpus )
kaf24@8459 474 break;
kaf24@8459 475 if ( !cpu_online(i) )
kaf24@8459 476 __cpu_up(i);
kaf24@8459 477 }
kaf24@8459 478
kaf24@8459 479 printk("Brought up %ld CPUs\n", (long)num_online_cpus());
kaf24@8459 480 smp_cpus_done(max_cpus);
kaf24@8459 481
kaf24@8459 482 do_initcalls();
kaf24@8459 483
kaf24@8459 484 schedulers_start();
kaf24@8459 485
kaf24@8594 486 if ( opt_watchdog )
kaf24@8594 487 watchdog_enable();
kaf24@8459 488
kaf24@8459 489 shadow_mode_init();
kaf24@8459 490
kaf24@8459 491 /* initialize access control security module */
kaf24@8459 492 acm_init(&initrdidx, mbi, initial_images_start);
kaf24@8459 493
kaf24@8459 494 /* Create initial domain 0. */
kaf24@8611 495 dom0 = domain_create(0, 0);
kaf24@8459 496 if ( dom0 == NULL )
kaf24@8459 497 panic("Error creating domain 0\n");
kaf24@8459 498
kaf24@8459 499 set_bit(_DOMF_privileged, &dom0->domain_flags);
kaf24@8459 500 /* post-create hooks sets security label */
kaf24@8459 501 acm_post_domain0_create(dom0->domain_id);
kaf24@8459 502
kaf24@8459 503 /* Grab the DOM0 command line. */
kaf24@8459 504 cmdline = (char *)(mod[0].string ? __va(mod[0].string) : NULL);
kaf24@8459 505 if ( cmdline != NULL )
kaf24@8459 506 {
kaf24@8459 507 static char dom0_cmdline[MAX_GUEST_CMDLINE];
kaf24@8459 508
kaf24@8459 509 /* Skip past the image name and copy to a local buffer. */
kaf24@8459 510 while ( *cmdline == ' ' ) cmdline++;
kaf24@8459 511 if ( (cmdline = strchr(cmdline, ' ')) != NULL )
kaf24@8459 512 {
kaf24@8459 513 while ( *cmdline == ' ' ) cmdline++;
kaf24@8459 514 strcpy(dom0_cmdline, cmdline);
kaf24@8459 515 }
kaf24@8459 516
kaf24@8459 517 cmdline = dom0_cmdline;
kaf24@8459 518
kaf24@8459 519 /* Append any extra parameters. */
kaf24@8459 520 if ( skip_ioapic_setup && !strstr(cmdline, "noapic") )
kaf24@8459 521 strcat(cmdline, " noapic");
kaf24@8459 522 if ( acpi_skip_timer_override &&
kaf24@8459 523 !strstr(cmdline, "acpi_skip_timer_override") )
kaf24@8459 524 strcat(cmdline, " acpi_skip_timer_override");
kaf24@8459 525 if ( (strlen(acpi_param) != 0) && !strstr(cmdline, "acpi=") )
kaf24@8459 526 {
kaf24@8459 527 strcat(cmdline, " acpi=");
kaf24@8459 528 strcat(cmdline, acpi_param);
kaf24@8459 529 }
kaf24@8459 530 }
kaf24@8459 531
kaf24@8459 532 if ( (initrdidx > 0) && (initrdidx < mbi->mods_count) )
kaf24@8459 533 {
kaf24@8459 534 _initrd_start = initial_images_start +
kaf24@8459 535 (mod[initrdidx].mod_start - mod[0].mod_start);
kaf24@8459 536 _initrd_len = mod[initrdidx].mod_end - mod[initrdidx].mod_start;
kaf24@8459 537 }
kaf24@8459 538
kaf24@8459 539 /*
kaf24@8459 540 * We're going to setup domain0 using the module(s) that we stashed safely
kaf24@8459 541 * above our heap. The second module, if present, is an initrd ramdisk.
kaf24@8459 542 */
kaf24@8459 543 if ( construct_dom0(dom0,
kaf24@8459 544 initial_images_start,
kaf24@8459 545 mod[0].mod_end-mod[0].mod_start,
kaf24@8459 546 _initrd_start,
kaf24@8459 547 _initrd_len,
kaf24@8459 548 cmdline) != 0)
kaf24@8459 549 panic("Could not set up DOM0 guest OS\n");
kaf24@8459 550
kaf24@8459 551 /* Scrub RAM that is still free and so may go to an unprivileged domain. */
kaf24@8459 552 scrub_heap_pages();
kaf24@8459 553
kaf24@8459 554 init_trace_bufs();
kaf24@8459 555
kaf24@8459 556 /* Give up the VGA console if DOM0 is configured to grab it. */
kaf24@8459 557 console_endboot(cmdline && strstr(cmdline, "tty0"));
kaf24@8459 558
kaf24@8459 559 /* Hide UART from DOM0 if we're using it */
kaf24@8459 560 serial_endboot();
kaf24@8459 561
kaf24@8459 562 domain_unpause_by_systemcontroller(dom0);
kaf24@8459 563
kaf24@8459 564 startup_cpu_idle_loop();
kaf24@8459 565 }
kaf24@8459 566
kaf24@6725 567 void arch_get_xen_caps(xen_capabilities_info_t info)
iap10@6721 568 {
kaf24@6725 569 char *p = info;
iap10@6721 570
kaf24@6725 571 #if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
kaf24@6725 572
smh22@7709 573 p += sprintf(p, "xen-%d.%d-x86_32 ", XEN_VERSION, XEN_SUBVERSION);
kaf24@6725 574 if ( hvm_enabled )
smh22@7709 575 p += sprintf(p, "hvm-%d.%d-x86_32 ", XEN_VERSION, XEN_SUBVERSION);
kaf24@6725 576
kaf24@6725 577 #elif defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
kaf24@6725 578
smh22@7709 579 p += sprintf(p, "xen-%d.%d-x86_32p ", XEN_VERSION, XEN_SUBVERSION);
kaf24@6725 580 if ( hvm_enabled )
iap10@6721 581 {
kaf24@8770 582 p += sprintf(p, "hvm-%d.%d-x86_32 ", XEN_VERSION, XEN_SUBVERSION);
smh22@7709 583 //p += sprintf(p, "hvm-%d.%d-x86_32p ", XEN_VERSION, XEN_SUBVERSION);
iap10@6721 584 }
iap10@6721 585
kaf24@6725 586 #elif defined(CONFIG_X86_64)
iap10@6721 587
smh22@7709 588 p += sprintf(p, "xen-%d.%d-x86_64 ", XEN_VERSION, XEN_SUBVERSION);
kaf24@6725 589 if ( hvm_enabled )
iap10@6721 590 {
kaf24@8246 591 p += sprintf(p, "hvm-%d.%d-x86_32 ", XEN_VERSION, XEN_SUBVERSION);
smh22@7709 592 //p += sprintf(p, "hvm-%d.%d-x86_32p ", XEN_VERSION, XEN_SUBVERSION);
smh22@7709 593 p += sprintf(p, "hvm-%d.%d-x86_64 ", XEN_VERSION, XEN_SUBVERSION);
iap10@6721 594 }
kaf24@6725 595
kaf24@6725 596 #else
kaf24@6725 597
kaf24@6725 598 p++;
kaf24@6725 599
iap10@6721 600 #endif
kaf24@8246 601
kaf24@6725 602 *(p-1) = 0;
iap10@6721 603
shand@6734 604 BUG_ON((p - info) > sizeof(xen_capabilities_info_t));
iap10@6721 605 }
iap10@6721 606
kaf24@3914 607 /*
kaf24@3914 608 * Local variables:
kaf24@3914 609 * mode: C
kaf24@3914 610 * c-set-style: "BSD"
kaf24@3914 611 * c-basic-offset: 4
kaf24@3914 612 * tab-width: 4
kaf24@3914 613 * indent-tabs-mode: nil
kaf24@3988 614 * End:
kaf24@3914 615 */