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-rw-r--r--drivers/firmware/efi/libstub/Makefile.zboot9
-rw-r--r--drivers/firmware/efi/libstub/zboot-header.S49
2 files changed, 39 insertions, 19 deletions
diff --git a/drivers/firmware/efi/libstub/Makefile.zboot b/drivers/firmware/efi/libstub/Makefile.zboot
index 2d7877023604..0a9dcc2b1373 100644
--- a/drivers/firmware/efi/libstub/Makefile.zboot
+++ b/drivers/firmware/efi/libstub/Makefile.zboot
@@ -1,7 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
# to be include'd by arch/$(ARCH)/boot/Makefile after setting
-# EFI_ZBOOT_PAYLOAD, EFI_ZBOOT_BFD_TARGET and EFI_ZBOOT_MACH_TYPE
+# EFI_ZBOOT_PAYLOAD, EFI_ZBOOT_BFD_TARGET, EFI_ZBOOT_MACH_TYPE and
+# EFI_ZBOOT_FORWARD_CFI
quiet_cmd_copy_and_pad = PAD $@
cmd_copy_and_pad = cp $< $@ && \
@@ -44,10 +45,14 @@ OBJCOPYFLAGS_vmlinuz.o := -I binary -O $(EFI_ZBOOT_BFD_TARGET) \
$(obj)/vmlinuz.o: $(obj)/vmlinuz FORCE
$(call if_changed,objcopy)
+aflags-zboot-header-$(EFI_ZBOOT_FORWARD_CFI) := \
+ -DPE_DLL_CHAR_EX=IMAGE_DLLCHARACTERISTICS_EX_FORWARD_CFI_COMPAT
+
AFLAGS_zboot-header.o += -DMACHINE_TYPE=IMAGE_FILE_MACHINE_$(EFI_ZBOOT_MACH_TYPE) \
-DZBOOT_EFI_PATH="\"$(realpath $(obj)/vmlinuz.efi.elf)\"" \
-DZBOOT_SIZE_LEN=$(zboot-size-len-y) \
- -DCOMP_TYPE="\"$(comp-type-y)\""
+ -DCOMP_TYPE="\"$(comp-type-y)\"" \
+ $(aflags-zboot-header-y)
$(obj)/zboot-header.o: $(srctree)/drivers/firmware/efi/libstub/zboot-header.S FORCE
$(call if_changed_rule,as_o_S)
diff --git a/drivers/firmware/efi/libstub/zboot-header.S b/drivers/firmware/efi/libstub/zboot-header.S
index 053aba073594..fb676ded47fa 100644
--- a/drivers/firmware/efi/libstub/zboot-header.S
+++ b/drivers/firmware/efi/libstub/zboot-header.S
@@ -78,9 +78,36 @@ __efistub_efi_zboot_header:
.quad 0 // ExceptionTable
.quad 0 // CertificationTable
.quad 0 // BaseRelocationTable
-#ifdef CONFIG_DEBUG_EFI
+#if defined(PE_DLL_CHAR_EX) || defined(CONFIG_DEBUG_EFI)
.long .Lefi_debug_table - .Ldoshdr // DebugTable
.long .Lefi_debug_table_size
+
+ .section ".rodata", "a"
+ .p2align 2
+.Lefi_debug_table:
+ // EFI_IMAGE_DEBUG_DIRECTORY_ENTRY[]
+#ifdef PE_DLL_CHAR_EX
+ .long 0 // Characteristics
+ .long 0 // TimeDateStamp
+ .short 0 // MajorVersion
+ .short 0 // MinorVersion
+ .long IMAGE_DEBUG_TYPE_EX_DLLCHARACTERISTICS // Type
+ .long 4 // SizeOfData
+ .long 0 // RVA
+ .long .Lefi_dll_characteristics_ex - .Ldoshdr // FileOffset
+#endif
+#ifdef CONFIG_DEBUG_EFI
+ .long 0 // Characteristics
+ .long 0 // TimeDateStamp
+ .short 0 // MajorVersion
+ .short 0 // MinorVersion
+ .long IMAGE_DEBUG_TYPE_CODEVIEW // Type
+ .long .Lefi_debug_entry_size // SizeOfData
+ .long 0 // RVA
+ .long .Lefi_debug_entry - .Ldoshdr // FileOffset
+#endif
+ .set .Lefi_debug_table_size, . - .Lefi_debug_table
+ .previous
#endif
.Lsection_table:
@@ -110,23 +137,11 @@ __efistub_efi_zboot_header:
.set .Lsection_count, (. - .Lsection_table) / 40
+#ifdef PE_DLL_CHAR_EX
+.Lefi_dll_characteristics_ex:
+ .long PE_DLL_CHAR_EX
+#endif
#ifdef CONFIG_DEBUG_EFI
- .section ".rodata", "a"
- .align 2
-.Lefi_debug_table:
- // EFI_IMAGE_DEBUG_DIRECTORY_ENTRY
- .long 0 // Characteristics
- .long 0 // TimeDateStamp
- .short 0 // MajorVersion
- .short 0 // MinorVersion
- .long IMAGE_DEBUG_TYPE_CODEVIEW // Type
- .long .Lefi_debug_entry_size // SizeOfData
- .long 0 // RVA
- .long .Lefi_debug_entry - .Ldoshdr // FileOffset
-
- .set .Lefi_debug_table_size, . - .Lefi_debug_table
- .previous
-
.Lefi_debug_entry:
// EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY
.ascii "NB10" // Signature