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authorAlex Thorlton <athorlton@sgi.com>2016-08-05 18:59:35 -0500
committerMatt Fleming <matt@codeblueprint.co.uk>2016-09-09 16:08:47 +0100
commit0513fe1d28e45deb39159dbeedf0660c3f0effd2 (patch)
tree3b89bb7d4619a08dc60053b6d6c3c1cdbf2df172 /fs/efivarfs
parentcf289cefbfde519bbc179a86cdc5e8cc91a0a08d (diff)
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>
Diffstat (limited to 'fs/efivarfs')
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