Commit-ID: 237d1548543312fcc8c99d302ab68fbf8ef6f97f Gitweb: http://git.kernel.org/tip/237d1548543312fcc8c99d302ab68fbf8ef6f97f Author: Wang YanQing <[email protected]> AuthorDate: Fri, 28 Jun 2013 22:45:16 +0800 Committer: H. Peter Anvin <[email protected]> CommitDate: Fri, 28 Jun 2013 15:27:29 -0700
x86: Fix override new_cpu_data.x86 with 486 We should set X86 to 486 before use cpuid to detect the cpu type, if we set X86 to 486 after cpuid, then we will get 486 until cpu_detect runs. Signed-off-by: Wang YanQing <[email protected]> Link: http://lkml.kernel.org/r/20130628144516.GA2177@udknight Acked-by: Borislav Petkov <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]> --- arch/x86/kernel/head_32.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index e65ddc6..fe79573 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -410,6 +410,7 @@ enable_paging: /* * Check if it is 486 */ + movb $4,X86 # at least 486 cmpl $-1,X86_CPUID je is486 @@ -437,7 +438,6 @@ enable_paging: movl %edx,X86_CAPABILITY is486: - movb $4,X86 movl $0x50022,%ecx # set AM, WP, NE and MP movl %cr0,%eax andl $0x80000011,%eax # Save PG,PE,ET -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
