Commit-ID: 2dead15fb8f6522b96c913603b5ad0b5c7d01f49 Gitweb: http://git.kernel.org/tip/2dead15fb8f6522b96c913603b5ad0b5c7d01f49 Author: Lans Zhang <lans.zhang2...@gmail.com> AuthorDate: Fri, 1 Mar 2013 09:20:39 +0800 Committer: H. Peter Anvin <h...@linux.intel.com> CommitDate: Fri, 1 Mar 2013 10:18:33 -0800
x86_64: Use __BOOT_DS instead_of __KERNEL_DS for safety In startup_32, the running code still uses the initial GDT located in setup. Thus, __BOOT_DS is preferred. Currently __KERNEL_DS is lucky to equal to __BOOT_DS, but this is not always a safe way. Signed-off-by: Lans Zhang <lans.zhang2...@gmail.com> Link: http://lkml.kernel.org/r/51300267.6000...@gmail.com Signed-off-by: H. Peter Anvin <h...@linux.intel.com> --- arch/x86/boot/compressed/head_64.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index c1d383d..16f24e6 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -52,7 +52,7 @@ ENTRY(startup_32) jnz 1f cli - movl $(__KERNEL_DS), %eax + movl $(__BOOT_DS), %eax movl %eax, %ds movl %eax, %es movl %eax, %ss -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
