These should be set according to the image type. Shell.efi and SCT.efi use these fields to determine what sort of image they are loading.
Signed-off-by: Rob Clark robdclark@gmail.com --- include/pe.h | 6 ++++++ lib/efi_loader/efi_image_loader.c | 22 ++++++++++++++++++++++ 2 files changed, 28 insertions(+)
diff --git a/include/pe.h b/include/pe.h index deb35a0ea4..4ef3e92efa 100644 --- a/include/pe.h +++ b/include/pe.h @@ -62,6 +62,12 @@ typedef struct _IMAGE_DATA_DIRECTORY {
#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
+/* PE32+ Subsystem type for EFI images */ +#define IMAGE_SUBSYSTEM_EFI_APPLICATION 10 +#define IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER 11 +#define IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER 12 +#define IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER 13 + typedef struct _IMAGE_OPTIONAL_HEADER64 { uint16_t Magic; /* 0x20b */ uint8_t MajorLinkerVersion; diff --git a/lib/efi_loader/efi_image_loader.c b/lib/efi_loader/efi_image_loader.c index 242e6a504b..af29cc4f04 100644 --- a/lib/efi_loader/efi_image_loader.c +++ b/lib/efi_loader/efi_image_loader.c @@ -94,6 +94,7 @@ void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info) unsigned long virt_size = 0; bool can_run_nt64 = true; bool can_run_nt32 = true; + uint16_t image_type;
#if defined(CONFIG_ARM64) can_run_nt32 = false; @@ -139,6 +140,7 @@ void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info) entry = efi_reloc + opt->AddressOfEntryPoint; rel_size = opt->DataDirectory[rel_idx].Size; rel = efi_reloc + opt->DataDirectory[rel_idx].VirtualAddress; + image_type = opt->Subsystem; } else if (can_run_nt32 && (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC)) { IMAGE_OPTIONAL_HEADER32 *opt = &nt->OptionalHeader; @@ -152,12 +154,32 @@ void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info) entry = efi_reloc + opt->AddressOfEntryPoint; rel_size = opt->DataDirectory[rel_idx].Size; rel = efi_reloc + opt->DataDirectory[rel_idx].VirtualAddress; + image_type = opt->Subsystem; } else { printf("%s: Invalid optional header magic %x\n", __func__, nt->OptionalHeader.Magic); return NULL; }
+ switch (image_type) { + case IMAGE_SUBSYSTEM_EFI_APPLICATION: + loaded_image_info->image_code_type = EFI_LOADER_CODE; + loaded_image_info->image_data_type = EFI_LOADER_DATA; + break; + case IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER: + loaded_image_info->image_code_type = EFI_BOOT_SERVICES_CODE; + loaded_image_info->image_data_type = EFI_BOOT_SERVICES_DATA; + break; + case IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER: + case IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER: + loaded_image_info->image_code_type = EFI_RUNTIME_SERVICES_CODE; + loaded_image_info->image_data_type = EFI_RUNTIME_SERVICES_DATA; + break; + default: + printf("%s: invalid image type: %u\n", __func__, image_type); + break; + } + /* Load sections into RAM */ for (i = num_sections - 1; i >= 0; i--) { IMAGE_SECTION_HEADER *sec = §ions[i];