diff options
Diffstat (limited to 'arch/x86/kernel/microcode_amd.c')
| -rw-r--r-- | arch/x86/kernel/microcode_amd.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index 591be0ee1934..d494799aafcd 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -74,14 +74,13 @@ static struct equiv_cpu_entry *equiv_cpu_table; static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig) { struct cpuinfo_x86 *c = &cpu_data(cpu); - u32 dummy; if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) { pr_warning("CPU%d: family %d not supported\n", cpu, c->x86); return -1; } - rdmsr(MSR_AMD64_PATCH_LEVEL, csig->rev, dummy); + csig->rev = c->microcode; pr_info("CPU%d: patch_level=0x%08x\n", cpu, csig->rev); return 0; @@ -130,6 +129,7 @@ static int apply_microcode_amd(int cpu) int cpu_num = raw_smp_processor_id(); struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num; struct microcode_amd *mc_amd = uci->mc; + struct cpuinfo_x86 *c = &cpu_data(cpu); /* We should bind the task to the CPU */ BUG_ON(cpu_num != cpu); @@ -150,6 +150,7 @@ static int apply_microcode_amd(int cpu) pr_info("CPU%d: new patch_level=0x%08x\n", cpu, rev); uci->cpu_sig.rev = rev; + c->microcode = rev; return 0; } |