diff options
Diffstat (limited to 'drivers/firmware/efi/arm-init.c')
| -rw-r--r-- | drivers/firmware/efi/arm-init.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/firmware/efi/arm-init.c b/drivers/firmware/efi/arm-init.c index 1027d7b44358..0aa4ce7b4fbb 100644 --- a/drivers/firmware/efi/arm-init.c +++ b/drivers/firmware/efi/arm-init.c @@ -159,6 +159,7 @@ static __init int is_usable_memory(efi_memory_desc_t *md) switch (md->type) { case EFI_LOADER_CODE: case EFI_LOADER_DATA: + case EFI_ACPI_RECLAIM_MEMORY: case EFI_BOOT_SERVICES_CODE: case EFI_BOOT_SERVICES_DATA: case EFI_CONVENTIONAL_MEMORY: @@ -211,6 +212,10 @@ static __init void reserve_regions(void) if (!is_usable_memory(md)) memblock_mark_nomap(paddr, size); + + /* keep ACPI reclaim memory intact for kexec etc. */ + if (md->type == EFI_ACPI_RECLAIM_MEMORY) + memblock_reserve(paddr, size); } } } |