diff options
| author | John W. Linville <linville@tuxdriver.com> | 2011-11-22 14:05:46 -0500 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-11-22 14:05:46 -0500 |
| commit | 515db09338704a6ad7d27b5f1e33820d3052edd2 (patch) | |
| tree | 74f915531710303397d34069b325c2be7a5ac93c /arch/x86/kernel/microcode_intel.c | |
| parent | 30be52e44fd4276d768efffb55d424fb682e6505 (diff) | |
| parent | cfcfc9eca2bcbd26a8e206baeb005b055dbf8e37 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Conflicts:
drivers/net/wireless/iwlegacy/iwl-debugfs.c
drivers/net/wireless/iwlegacy/iwl-rx.c
drivers/net/wireless/iwlegacy/iwl-scan.c
drivers/net/wireless/iwlegacy/iwl-tx.c
include/net/bluetooth/bluetooth.h
Diffstat (limited to 'arch/x86/kernel/microcode_intel.c')
| -rw-r--r-- | arch/x86/kernel/microcode_intel.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/arch/x86/kernel/microcode_intel.c b/arch/x86/kernel/microcode_intel.c index 1a1b606d3e92..3ca42d0e43a2 100644 --- a/arch/x86/kernel/microcode_intel.c +++ b/arch/x86/kernel/microcode_intel.c @@ -161,12 +161,7 @@ static int collect_cpu_info(int cpu_num, struct cpu_signature *csig) csig->pf = 1 << ((val[1] >> 18) & 7); } - wrmsr(MSR_IA32_UCODE_REV, 0, 0); - /* see notes above for revision 1.07. Apparent chip bug */ - sync_core(); - /* get the current revision from MSR 0x8B */ - rdmsr(MSR_IA32_UCODE_REV, val[0], csig->rev); - + csig->rev = c->microcode; pr_info("CPU%d sig=0x%x, pf=0x%x, revision=0x%x\n", cpu_num, csig->sig, csig->pf, csig->rev); @@ -299,9 +294,9 @@ static int apply_microcode(int cpu) struct microcode_intel *mc_intel; struct ucode_cpu_info *uci; unsigned int val[2]; - int cpu_num; + int cpu_num = raw_smp_processor_id(); + struct cpuinfo_x86 *c = &cpu_data(cpu_num); - cpu_num = raw_smp_processor_id(); uci = ucode_cpu_info + cpu; mc_intel = uci->mc; @@ -317,7 +312,7 @@ static int apply_microcode(int cpu) (unsigned long) mc_intel->bits >> 16 >> 16); wrmsr(MSR_IA32_UCODE_REV, 0, 0); - /* see notes above for revision 1.07. Apparent chip bug */ + /* As documented in the SDM: Do a CPUID 1 here */ sync_core(); /* get the current revision from MSR 0x8B */ @@ -335,6 +330,7 @@ static int apply_microcode(int cpu) (mc_intel->hdr.date >> 16) & 0xff); uci->cpu_sig.rev = val[1]; + c->microcode = val[1]; return 0; } |