diff options
| author | Borislav Petkov <bp@suse.de> | 2014-01-18 12:48:15 +0100 |
|---|---|---|
| committer | Matt Fleming <matt.fleming@intel.com> | 2014-03-04 16:17:17 +0000 |
| commit | 11cc851254b4bc3bd4430be8db2a41469303a427 (patch) | |
| tree | 490cfc91f4a07ae31e9cbef87c2a64dad742e2e0 /arch/x86/platform/efi/efi_64.c | |
| parent | ef6bea6ddf0e76077d0798e57b374015b23a837e (diff) | |
x86/efi: Dump the EFI page table
This is very useful for debugging issues with the recently added
pagetable switching code for EFI virtual mode.
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'arch/x86/platform/efi/efi_64.c')
| -rw-r--r-- | arch/x86/platform/efi/efi_64.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index 0c2a234fef1e..e05c69b46f05 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -242,3 +242,12 @@ void __init efi_runtime_mkexec(void) if (__supported_pte_mask & _PAGE_NX) runtime_code_page_mkexec(); } + +void __init efi_dump_pagetable(void) +{ +#ifdef CONFIG_EFI_PGT_DUMP + pgd_t *pgd = (pgd_t *)__va(real_mode_header->trampoline_pgd); + + ptdump_walk_pgd_level(NULL, pgd); +#endif +} |