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| author | Alex Thorlton <athorlton@sgi.com> | 2016-08-06 01:59:35 +0200 |
|---|---|---|
| committer | Matt Fleming <matt@codeblueprint.co.uk> | 2016-09-09 17:08:47 +0200 |
| commit | 0513fe1d28e45deb39159dbeedf0660c3f0effd2 (patch) | |
| tree | 3b89bb7d4619a08dc60053b6d6c3c1cdbf2df172 | |
| parent | lib/ucs2_string: Speed up ucs2_utf8size() (diff) | |
| download | linux-0513fe1d28e45deb39159dbeedf0660c3f0effd2.tar.xz linux-0513fe1d28e45deb39159dbeedf0660c3f0effd2.zip | |
x86/efi: Map in physical addresses in efi_map_region_fixed
This is a simple change to add in the physical mappings as well as the
virtual mappings in efi_map_region_fixed. The motivation here is to
get access to EFI runtime code that is only available via the 1:1
mappings on a kexec'd kernel.
The added call is essentially the kexec analog of the first __map_region
that Boris put in efi_map_region in commit d2f7cbe7b26a ("x86/efi:
Runtime services virtual mapping").
Signed-off-by: Alex Thorlton <athorlton@sgi.com>
Cc: Russ Anderson <rja@sgi.com>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Cc: Mike Travis <travis@sgi.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
| -rw-r--r-- | arch/x86/platform/efi/efi_64.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index 45434ea345e9..e1ca71259468 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -339,6 +339,7 @@ void __init efi_map_region(efi_memory_desc_t *md) */ void __init efi_map_region_fixed(efi_memory_desc_t *md) { + __map_region(md, md->phys_addr); __map_region(md, md->virt_addr); } |