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-rw-r--r--arch/x86/boot/compressed/eboot.c3
-rw-r--r--arch/x86/platform/efi/efi.c19
2 files changed, 3 insertions, 19 deletions
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 926c2cc4facc..e56dbc67e837 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -997,6 +997,9 @@ struct boot_params *efi_main(struct efi_config *c,
if (boot_params->secure_boot == efi_secureboot_mode_unset)
boot_params->secure_boot = efi_get_secureboot(sys_table);
+ /* Ask the firmware to clear memory on unclean shutdown */
+ efi_enable_reset_attack_mitigation(sys_table);
+
setup_graphics(boot_params);
setup_efi_pci(boot_params);
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 6217b23e85f6..928b6dceeca0 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -1032,25 +1032,6 @@ void __init efi_enter_virtual_mode(void)
efi_dump_pagetable();
}
-/*
- * Convenience functions to obtain memory types and attributes
- */
-int efi_mem_type(unsigned long phys_addr)
-{
- efi_memory_desc_t *md;
-
- if (!efi_enabled(EFI_MEMMAP))
- return -ENOTSUPP;
-
- for_each_efi_memory_desc(md) {
- if ((md->phys_addr <= phys_addr) &&
- (phys_addr < (md->phys_addr +
- (md->num_pages << EFI_PAGE_SHIFT))))
- return md->type;
- }
- return -EINVAL;
-}
-
static int __init arch_parse_efi_cmdline(char *str)
{
if (!str) {