From e2ade890fed7f3acbb96f66cda210c2f58747361 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 17 Oct 2011 16:34:36 +0200 Subject: [PATCH] --- yaml --- r: 269538 b: refs/heads/master c: bcb80e53877c2045d9e52f4a71372c3fe6501f6f h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/arch/x86/kernel/cpu/amd.c | 4 ++++ trunk/arch/x86/kernel/microcode_amd.c | 5 +++-- 3 files changed, 8 insertions(+), 3 deletions(-) diff --git a/[refs] b/[refs] index 0f7b5d0b5c69..1acaa0ad1818 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 881e23e56764808e7ab1ed73b5d8a6700042ea38 +refs/heads/master: bcb80e53877c2045d9e52f4a71372c3fe6501f6f diff --git a/trunk/arch/x86/kernel/cpu/amd.c b/trunk/arch/x86/kernel/cpu/amd.c index b13ed393dfce..d898fab0e125 100644 --- a/trunk/arch/x86/kernel/cpu/amd.c +++ b/trunk/arch/x86/kernel/cpu/amd.c @@ -412,6 +412,8 @@ static void __cpuinit early_init_amd_mc(struct cpuinfo_x86 *c) static void __cpuinit early_init_amd(struct cpuinfo_x86 *c) { + u32 dummy; + early_init_amd_mc(c); /* @@ -442,6 +444,8 @@ static void __cpuinit early_init_amd(struct cpuinfo_x86 *c) } #endif + rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy); + /* We need to do the following only once */ if (c != &boot_cpu_data) return; diff --git a/trunk/arch/x86/kernel/microcode_amd.c b/trunk/arch/x86/kernel/microcode_amd.c index 591be0ee1934..d494799aafcd 100644 --- a/trunk/arch/x86/kernel/microcode_amd.c +++ b/trunk/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; }