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| author | Sai Praneeth | 2016-02-17 13:36:06 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2016-02-22 08:26:28 +0100 |
| commit | 2ad510dc372c2caac9aada9ff6dd10e787616e1d (patch) | |
| tree | c7bba60189c8216464ab17402c11811cd17e2439 /arch/x86/platform/efi/efi_64.c | |
| parent | x86/efi: Map EFI_MEMORY_{XP,RO} memory region bits to EFI page tables (diff) | |
| download | kernel-qcow2-linux-2ad510dc372c2caac9aada9ff6dd10e787616e1d.tar.gz kernel-qcow2-linux-2ad510dc372c2caac9aada9ff6dd10e787616e1d.tar.xz kernel-qcow2-linux-2ad510dc372c2caac9aada9ff6dd10e787616e1d.zip | |
x86/efi: Only map kernel text for EFI mixed mode
The correct symbol to use when figuring out the size of the kernel
text is '_etext', not '_end' which is the symbol for the entire kernel
image includes data and debug sections.
Signed-off-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: 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: Ravi Shankar <ravi.v.shankar@intel.com>
Cc: Ricardo Neri <ricardo.neri@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1455712566-16727-14-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/platform/efi/efi_64.c')
| -rw-r--r-- | arch/x86/platform/efi/efi_64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index 40d2f447a9dd..49e4dd4a1f58 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -275,7 +275,7 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages) efi_scratch.phys_stack = virt_to_phys(page_address(page)); efi_scratch.phys_stack += PAGE_SIZE; /* stack grows down */ - npages = (_end - _text) >> PAGE_SHIFT; + npages = (_etext - _text) >> PAGE_SHIFT; text = __pa(_text); pfn = text >> PAGE_SHIFT; |