| From | Matt Fleming <> | Subject | [PATCH 13/13] x86/efi: Only map kernel text for EFI mixed mode | Date | Wed, 17 Feb 2016 12:36:06 +0000 |
| |
From: Sai Praneeth <sai.praneeth.prakhya@intel.com>
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.
Cc: Borislav Petkov <bp@alien8.de> Cc: Ricardo Neri <ricardo.neri@intel.com> Cc: Ravi Shankar <ravi.v.shankar@intel.com> Signed-off-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> --- arch/x86/platform/efi/efi_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
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; -- 2.6.2
|