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| author | Matt Fleming <matt@codeblueprint.co.uk> | 2016-06-22 16:54:00 +0100 |
|---|---|---|
| committer | Matt Fleming <matt@codeblueprint.co.uk> | 2016-09-09 16:07:47 +0100 |
| commit | c45f4da33a297f85435f8dccb26a24852ea01bb9 (patch) | |
| tree | 3bf0927904747a9b36b57058e1dce31e87f87dab /include/linux/efi.h | |
| parent | 60863c0d1a96b740048cc7d94a2d00d6f89ba3d8 (diff) | |
| download | blackbird-op-linux-c45f4da33a297f85435f8dccb26a24852ea01bb9.tar.gz blackbird-op-linux-c45f4da33a297f85435f8dccb26a24852ea01bb9.zip | |
efi: Add efi_memmap_install() for installing new EFI memory maps
While efi_memmap_init_{early,late}() exist for architecture code to
install memory maps from firmware data and for the virtual memory
regions respectively, drivers don't care which stage of the boot we're
at and just want to swap the existing memmap for a modified one.
efi_memmap_install() abstracts the details of how the new memory map
should be mapped and the existing one unmapped.
Tested-by: Dave Young <dyoung@redhat.com> [kexec/kdump]
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> [arm]
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Peter Jones <pjones@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Diffstat (limited to 'include/linux/efi.h')
| -rw-r--r-- | include/linux/efi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index 84c8638c7a8b..987c18f6fcae 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -923,6 +923,7 @@ extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); extern int __init efi_memmap_init_early(struct efi_memory_map_data *data); extern int __init efi_memmap_init_late(phys_addr_t addr, unsigned long size); extern void __init efi_memmap_unmap(void); +extern int __init efi_memmap_install(phys_addr_t addr, unsigned int nr_map); extern int __init efi_memmap_split_count(efi_memory_desc_t *md, struct range *range); extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap, |
