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Virtualizing memory after exiting boot services

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This commit is contained in:
Justin C. Miller
2018-03-22 19:16:44 -07:00
parent b5c579fe0d
commit cdef82f06f
6 changed files with 86 additions and 35 deletions
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50
src/boot/main.c
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@@ -33,8 +33,6 @@ efi_main (EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
CHECK_EFI_STATUS_OR_FAIL(status);
con_status_ok();
// memory_dump_map();
con_status_begin(L"Loading kernel into memory...");
void *kernel_image = NULL;
uint64_t kernel_length = 0;
@@ -43,28 +41,46 @@ efi_main (EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
Print(L" %u bytes at 0x%x", kernel_length, kernel_image);
con_status_ok();
//memory_dump_map();
con_status_begin(L"Exiting boot services...");
UINTN memmap_size = 0, memmap_key = 0;
UINTN desc_size = 0;
UINT32 desc_version = 0;
EFI_MEMORY_DESCRIPTOR *memory_map;
status = memory_mark_address_for_update((void**)&ST);
CHECK_EFI_STATUS_OR_FAIL(status);
status = memory_mark_address_for_update((void**)&kernel_image);
CHECK_EFI_STATUS_OR_FAIL(status);
status = memory_get_map(&memory_map,
&memmap_size, &memmap_key,
&desc_size, &desc_version);
CHECK_EFI_STATUS_OR_FAIL(status);
status = ST->BootServices->ExitBootServices(ImageHandle, memmap_key);
CHECK_EFI_STATUS_OR_FAIL(status);
status = memory_virtualize(
&kernel_image,
memory_map, memmap_size,
desc_size, desc_version);
CHECK_EFI_STATUS_OR_FAIL(status);
void (*kernel_main)() = kernel_image;
kernel_main();
/*
con_status_ok();
con_status_begin(L"Virtualizing memory...");
status = memory_virtualize();
CHECK_EFI_STATUS_OR_FAIL(status);
con_status_ok();
UINTN memmap_size = 0;
EFI_MEMORY_DESCRIPTOR *memmap;
UINTN memmap_key;
UINTN desc_size;
UINT32 desc_version;
con_status_begin(L"Exiting boot services");
memmap = LibMemoryMap(&memmap_size, &memmap_key,
&desc_size, &desc_version);
status = ST->BootServices->ExitBootServices(ImageHandle, memmap_key);
CHECK_EFI_STATUS_OR_FAIL(status);
con_status_ok();
void (*kernel_main)() = kernel_image;
kernel_main();
con_status_begin(L"Setting virtual address map");
status = ST->RuntimeServices->SetVirtualAddressMap(