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-rw-r--r--arch/x86/include/asm/e820/types.h8
-rw-r--r--arch/x86/include/asm/efi.h17
2 files changed, 24 insertions, 1 deletions
diff --git a/arch/x86/include/asm/e820/types.h b/arch/x86/include/asm/e820/types.h
index c3aa4b5e49e2..314f75d886d0 100644
--- a/arch/x86/include/asm/e820/types.h
+++ b/arch/x86/include/asm/e820/types.h
@@ -29,6 +29,14 @@ enum e820_type {
E820_TYPE_PRAM = 12,
/*
+ * Special-purpose memory is indicated to the system via the
+ * EFI_MEMORY_SP attribute. Define an e820 translation of this
+ * memory type for the purpose of reserving this range and
+ * marking it with the IORES_DESC_SOFT_RESERVED designation.
+ */
+ E820_TYPE_SOFT_RESERVED = 0xefffffff,
+
+ /*
* Reserved RAM used by the kernel itself if
* CONFIG_INTEL_TXT=y is enabled, memory of this type
* will be included in the S3 integrity calculation
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 43a82e59c59d..d028e9acdf1c 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -140,7 +140,6 @@ extern void efi_delete_dummy_variable(void);
extern void efi_switch_mm(struct mm_struct *mm);
extern void efi_recover_from_page_fault(unsigned long phys_addr);
extern void efi_free_boot_services(void);
-extern void efi_reserve_boot_services(void);
struct efi_setup_data {
u64 fw_vendor;
@@ -244,6 +243,8 @@ static inline bool efi_is_64bit(void)
extern bool efi_reboot_required(void);
extern bool efi_is_table_address(unsigned long phys_addr);
+extern void efi_find_mirror(void);
+extern void efi_reserve_boot_services(void);
#else
static inline void parse_efi_setup(u64 phys_addr, u32 data_len) {}
static inline bool efi_reboot_required(void)
@@ -254,6 +255,20 @@ static inline bool efi_is_table_address(unsigned long phys_addr)
{
return false;
}
+static inline void efi_find_mirror(void)
+{
+}
+static inline void efi_reserve_boot_services(void)
+{
+}
#endif /* CONFIG_EFI */
+#ifdef CONFIG_EFI_FAKE_MEMMAP
+extern void __init efi_fake_memmap_early(void);
+#else
+static inline void efi_fake_memmap_early(void)
+{
+}
+#endif
+
#endif /* _ASM_X86_EFI_H */