[U-Boot] [PATCH v3 17/21] efi_loader: set loaded image code/data type properly

[Rob Clark]

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 <robdcl...@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 = &sections[i];
-- 
2.13.5

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