Commit-ID: 97541912785369925723b6255438ad9fce2ddf04 Gitweb: http://git.kernel.org/tip/97541912785369925723b6255438ad9fce2ddf04 Author: H. Peter Anvin <hpa@xxxxxxxxx> AuthorDate: Wed, 6 May 2009 17:56:51 -0700 Committer: H. Peter Anvin <hpa@xxxxxxxxx> CommitDate: Fri, 8 May 2009 17:19:01 -0700 x86, boot: zero EFLAGS on 32 bits The 64-bit code already clears EFLAGS as soon as it has a stack. This seems like a reasonable precaution, so do it on 32 bits as well. [ Impact: extra paranoia ] Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx> --- arch/x86/boot/compressed/head_32.S | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S index d7245cf..d02a4f0 100644 --- a/arch/x86/boot/compressed/head_32.S +++ b/arch/x86/boot/compressed/head_32.S @@ -91,6 +91,10 @@ ENTRY(startup_32) /* Set up the stack */ leal boot_stack_end(%ebx), %esp + /* Zero EFLAGS */ + pushl $0 + popfl + /* * Copy the compressed kernel to the end of our buffer * where decompression in place becomes safe. -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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