#define INFO(fmt, args...) PrintDebug(VM_NONE,VCORE_NONE,"multiboot: " fmt,##args)
-
-/******************************************************************
- Data contained in the ELF file we will attempt to boot
-******************************************************************/
-
-#define ELF_MAGIC 0x464c457f
-#define MB2_MAGIC 0xe85250d6
-
-
-/******************************************************************
- Data we will pass to the kernel via rbx
-******************************************************************/
-
-#define MB2_INFO_MAGIC 0x36d76289
-
-typedef struct mb_info_header {
- uint32_t totalsize;
- uint32_t reserved;
-} __attribute__((packed)) mb_info_header_t;
-
-// A tag of type 0, size 8 indicates last value
-//
-typedef struct mb_info_tag {
- uint32_t type;
- uint32_t size;
-} __attribute__((packed)) mb_info_tag_t;
-
-
-#define MB_INFO_MEM_TAG 4
-typedef struct mb_info_mem {
- mb_info_tag_t tag;
- uint32_t mem_lower; // 0..640K in KB
- uint32_t mem_upper; // in KB to first hole - 1 MB
-} __attribute__((packed)) mb_info_mem_t;
-
-#define MB_INFO_CMDLINE_TAG 1
-// note alignment of 8 bytes required for each...
-typedef struct mb_info_cmdline {
- mb_info_tag_t tag;
- uint32_t size; // includes zero termination
- uint8_t string[]; // zero terminated
-} __attribute__((packed)) mb_info_cmdline_t;
-
-
-#define MEM_RAM 1
-#define MEM_ACPI 3
-#define MEM_RESV 4
-
-typedef struct mb_info_memmap_entry {
- uint64_t base_addr;
- uint64_t length;
- uint32_t type;
- uint32_t reserved;
-} __attribute__((packed)) mb_info_memmap_entry_t;
-
-#define MB_INFO_MEMMAP_TAG 6
-// note alignment of 8 bytes required for each...
-typedef struct mb_info_memmap {
- mb_info_tag_t tag;
- uint32_t entry_size; // multiple of 8
- uint32_t entry_version; // 0
- mb_info_memmap_entry_t entries[];
-} __attribute__((packed)) mb_info_memmap_t;
-
-#define MB_INFO_HRT_TAG 0xf00df00d
-typedef struct mb_info_hrt {
- mb_info_tag_t tag;
- // apic ids are 0..num_apics-1
- // apic and ioapic addresses are the well known places
- uint32_t total_num_apics;
- uint32_t first_hrt_apic_id;
- uint32_t have_hrt_ioapic;
- uint32_t first_hrt_ioapic_entry;
- uint64_t first_hrt_addr;
-} __attribute__((packed)) mb_info_hrt_t;
-
-
-// We are not doing:
-//
-// - BIOS Boot Devie
-// - Modules
-// - ELF symbols
-// - Boot Loader name
-// - APM table
-// - VBE info
-// - Framebuffer info
-//
-
static int is_elf(uint8_t *data, uint64_t size)
{
if (*((uint32_t*)data)==ELF_MAGIC) {
return sum==0;
}
-static int parse_multiboot_kernel(uint8_t *data, uint64_t size, mb_data_t *mb)
+int v3_parse_multiboot_header(void *data, uint64_t size, mb_data_t *mb)
{
uint64_t i;
INFO(" size = 0x%x\n", mb_modalign->size);
}
break;
-#if 0
+
+#if V3_CONFIG_HVM
case MB_TAG_MB64_HRT: {
if (mb_mb64_hrt) {
ERROR("Multiple mb64_hrt tags found!\n");
}
break;
#endif
-
default:
INFO("Unknown tag... Skipping...\n");
break;
}
-int v3_parse_multiboot_header(struct v3_cfg_file *file, mb_data_t *result)
-{
- return parse_multiboot_kernel(file->data,file->size,result);
-}
-
#define APIC_BASE 0xfee00000
#define IOAPIC_BASE 0xfec00000
#ifdef V3_CONFIG_HVM
if (core->vm_info->hvm_state.is_hvm && v3_is_hvm_hrt_core(core)) {
- hrt->tag.type = MB_INFO_HRT_TAG;
- hrt->tag.size = sizeof(mb_info_hrt_t);
- hrt->total_num_apics = vm->num_cores;
- hrt->first_hrt_apic_id = vm->hvm_state.first_hrt_core;
- hrt->have_hrt_ioapic=0;
- hrt->first_hrt_ioapic_entry=0;
- hrt->first_hrt_addr = vm->hvm_state.first_hrt_gpa;
+ v3_build_hrt_multiboot_tag(core,hrt);
}
#endif
}
-int v3_write_multiboot_kernel(struct v3_vm_info *vm, mb_data_t *mb, struct v3_cfg_file *file,
+int v3_write_multiboot_kernel(struct v3_vm_info *vm, mb_data_t *mb, void *data, uint64_t len,
void *base, uint64_t limit)
{
uint32_t offset=0;
- uint32_t header_offset = (uint32_t) ((uint64_t)(mb->header) - (uint64_t)(file->data));
+ uint32_t header_offset = (uint32_t) ((uint64_t)(mb->header) - (uint64_t)(data));
uint32_t size;
if (!mb->addr || !mb->entry) {
offset = header_offset - (mb->addr->header_addr - mb->addr->load_addr);
size = mb->addr->load_end_addr - mb->addr->load_addr;
- if (size != file->size-offset) {
- V3_Print(vm,VCORE_NONE,"multiboot: strange: size computed as %u, but file->size-offset = %llu\n",size,file->size-offset);
+ if (size != len-offset) {
+ V3_Print(vm,VCORE_NONE,"multiboot: strange: size computed as %u, but len-offset = %llu\n",size,len-offset);
}
// We are trying to do as little ELF loading here as humanly possible
v3_write_gpa_memory(&vm->cores[0],
(addr_t)(mb->addr->load_addr),
size,
- file->data+offset);
+ data+offset);
PrintDebug(vm,VCORE_NONE,
"multiboot: wrote 0x%llx bytes starting at offset 0x%llx to %p\n",
} else {
if (find_mb_header(vm->mb_state.mb_file->data,vm->mb_state.mb_file->size)) {
PrintDebug(vm,VCORE_NONE,"multiboot: appears to be a multiboot kernel\n");
- if (v3_parse_multiboot_header(vm->mb_state.mb_file,&vm->mb_state.mb_data)) {
+ if (v3_parse_multiboot_header(vm->mb_state.mb_file->data,vm->mb_state.mb_file->size,&vm->mb_state.mb_data)) {
PrintError(vm,VCORE_NONE,"multiboot: cannot parse multiboot kernel header\n");
return -1;
}
- if (v3_write_multiboot_kernel(vm, &(vm->mb_state.mb_data),vm->mb_state.mb_file,base,limit)) {
+ if (v3_write_multiboot_kernel(vm, &(vm->mb_state.mb_data),vm->mb_state.mb_file->data,vm->mb_state.mb_file->size,base,limit)) {
PrintError(vm,VCORE_NONE,"multiboot: multiboot kernel setup failed\n");
return -1;
}
