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| author |   Joerg Roedel <jroedel@suse.de> | 2020-09-07 15:15:18 +0200 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2020-09-07 19:45:25 +0200 |
| commit | 8570978ea030757839747aa9944ea576708be3d4 (patch) | |
| tree | db071f7629f955938db50ff11b13dbdda406e29f /arch/x86/boot/compressed/misc.h | |
| parent | x86/boot/compressed/64: Always switch to own page table (diff) | |
| download | linux-dev-8570978ea030757839747aa9944ea576708be3d4.tar.xz linux-dev-8570978ea030757839747aa9944ea576708be3d4.zip | |
x86/boot/compressed/64: Don't pre-map memory in KASLR code
With the page-fault handler in place, he identity mapping can be built
on-demand. So remove the code which manually creates the mappings and
unexport/remove the functions used for it.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lkml.kernel.org/r/20200907131613.12703-18-joro@8bytes.org
Diffstat (limited to 'arch/x86/boot/compressed/misc.h')
| -rw-r--r-- | arch/x86/boot/compressed/misc.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h index f0e199174c5f..9840c82a39f1 100644 --- a/arch/x86/boot/compressed/misc.h +++ b/arch/x86/boot/compressed/misc.h @@ -98,17 +98,7 @@ static inline void choose_random_location(unsigned long input, #endif #ifdef CONFIG_X86_64 -void initialize_identity_maps(void); -void add_identity_map(unsigned long start, unsigned long size); -void finalize_identity_maps(void); extern unsigned char _pgtable[]; -#else -static inline void initialize_identity_maps(void) -{ } -static inline void add_identity_map(unsigned long start, unsigned long size) -{ } -static inline void finalize_identity_maps(void) -{ } #endif #ifdef CONFIG_EARLY_PRINTK |