diff options
Diffstat (limited to 'arch/x86/platform/efi/efi.c')
| -rw-r--r-- | arch/x86/platform/efi/efi.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index fe01ae37a2a4..cfba30f27392 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -117,6 +117,27 @@ void efi_get_time(struct timespec *now) now->tv_nsec = 0; } +void __init efi_find_mirror(void) +{ + void *p; + u64 mirror_size = 0, total_size = 0; + + for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { + efi_memory_desc_t *md = p; + unsigned long long start = md->phys_addr; + unsigned long long size = md->num_pages << EFI_PAGE_SHIFT; + + total_size += size; + if (md->attribute & EFI_MEMORY_MORE_RELIABLE) { + memblock_mark_mirror(start, size); + mirror_size += size; + } + } + if (mirror_size) + pr_info("Memory: %lldM/%lldM mirrored memory\n", + mirror_size>>20, total_size>>20); +} + /* * Tell the kernel about the EFI memory map. This might include * more than the max 128 entries that can fit in the e820 legacy @@ -504,6 +525,8 @@ void __init efi_init(void) if (efi_enabled(EFI_DBG)) print_efi_memmap(); + + efi_esrt_init(); } void __init efi_late_init(void) |