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| author |   Michael Roth <michael.roth@amd.com> | 2022-02-24 10:56:16 -0600 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2022-04-07 16:47:11 +0200 |
| commit | a9ee679b1f8c3803490ed2eeffb688aaee56583f (patch) | |
| tree | b08da60c8781bfc7cf8cbc7a2a55a200ff7af781 /arch/x86/boot/compressed/misc.h | |
| parent | x86/compressed: Use firmware-validated CPUID leaves for SEV-SNP guests (diff) | |
| download | linux-dev-a9ee679b1f8c3803490ed2eeffb688aaee56583f.tar.xz linux-dev-a9ee679b1f8c3803490ed2eeffb688aaee56583f.zip | |
x86/compressed: Export and rename add_identity_map()
SEV-specific code will need to add some additional mappings, but doing
this within ident_map_64.c requires some SEV-specific helpers to be
exported and some SEV-specific struct definitions to be pulled into
ident_map_64.c. Instead, export add_identity_map() so SEV-specific (and
other subsystem-specific) code can be better contained outside of
ident_map_64.c.
While at it, rename the function to kernel_add_identity_map(), similar
to the kernel_ident_mapping_init() function it relies upon.
No functional changes.
Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220307213356.2797205-37-brijesh.singh@amd.com
Diffstat (limited to 'arch/x86/boot/compressed/misc.h')
| -rw-r--r-- | arch/x86/boot/compressed/misc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h index ba538af37e90..aae2722c6e9a 100644 --- a/arch/x86/boot/compressed/misc.h +++ b/arch/x86/boot/compressed/misc.h @@ -156,6 +156,7 @@ static inline int count_immovable_mem_regions(void) { return 0; } #ifdef CONFIG_X86_5LEVEL extern unsigned int __pgtable_l5_enabled, pgdir_shift, ptrs_per_p4d; #endif +extern void kernel_add_identity_map(unsigned long start, unsigned long end); /* Used by PAGE_KERN* macros: */ extern pteval_t __default_kernel_pte_mask; |