diff options
| 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/ident_map_64.c | |
| parent | ca0e22d4f011a56e974fa3a712d76e86a791559d (diff) | |
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/ident_map_64.c')
| -rw-r--r-- | arch/x86/boot/compressed/ident_map_64.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/boot/compressed/ident_map_64.c b/arch/x86/boot/compressed/ident_map_64.c index ecf9353b064d..c63257bf8373 100644 --- a/arch/x86/boot/compressed/ident_map_64.c +++ b/arch/x86/boot/compressed/ident_map_64.c @@ -87,11 +87,9 @@ phys_addr_t physical_mask = (1ULL << __PHYSICAL_MASK_SHIFT) - 1; static struct x86_mapping_info mapping_info; /* - * Adds the specified range to what will become the new identity mappings. - * Once all ranges have been added, the new mapping is activated by calling - * finalize_identity_maps() below. + * Adds the specified range to the identity mappings. */ -void add_identity_map(unsigned long start, unsigned long size) +static void add_identity_map(unsigned long start, unsigned long size) { unsigned long end = start + size; |