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| author |   Andy Lutomirski <luto@kernel.org> | 2018-01-31 07:56:22 -0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2018-02-13 16:00:45 +0100 |
| commit | 116fef6408599dd6ff6996235c50aa692e9b5631 (patch) | |
| tree | 4afdb667d6d41cede6db3f47b21b86ceb8b0341a /arch/x86/platform | |
| parent | x86/mm/encrypt: Simplify sme_pgtable_calc() (diff) | |
| download | wireguard-linux-116fef6408599dd6ff6996235c50aa692e9b5631.tar.xz wireguard-linux-116fef6408599dd6ff6996235c50aa692e9b5631.zip | |
x86/mm/dump_pagetables: Add the EFI pagetable to the debugfs 'page_tables' directory
EFI is complicated enough that being able to view its pagetables is
quite helpful. Rather than requiring users to fish it out of dmesg
on an appropriately configured kernel, let users view it in debugfs
as well.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/ba158a93f3250e6fca752cff2cfb1fcdd9f2b50c.1517414050.git.luto@kernel.org
[ Fixed trivial whitespace damage and fixed missing export. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/platform')
| -rw-r--r-- | arch/x86/platform/efi/efi_64.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index c310a8284358..780460aa5ea5 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -27,6 +27,7 @@ #include <linux/ioport.h> #include <linux/mc146818rtc.h> #include <linux/efi.h> +#include <linux/export.h> #include <linux/uaccess.h> #include <linux/io.h> #include <linux/reboot.h> @@ -190,7 +191,8 @@ void __init efi_call_phys_epilog(pgd_t *save_pgd) early_code_mapping_set_exec(0); } -static pgd_t *efi_pgd; +pgd_t *efi_pgd; +EXPORT_SYMBOL_GPL(efi_pgd); /* * We need our own copy of the higher levels of the page tables |