[PATCH 10/10 -tip] x86: collect_cpu_info() of AMD user of Microcode feature

Jaswinder Singh Rajput
2009-05-12T15:50:41Z

use X86_FEATURE_MICROCODE to determine microcode update

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
---
arch/x86/kernel/microcode_amd.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index 453b579..1178638 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -90,7 +90,8 @@ static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig)
u32 dummy;

memset(csig, 0, sizeof(*csig));
- if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) {
+ if (c->x86_vendor != X86_VENDOR_AMD ||
+ !cpu_has(c, X86_FEATURE_MICROCODE)) {
printk(KERN_WARNING "microcode: CPU%d: AMD CPU family 0x%x not "
"supported\n", cpu, c->x86);
return -1;
--
1.6.0.6