Commit-ID: 9ea74f7c70cd5e408f1cfbda0e6836929f820d49 Gitweb: http://git.kernel.org/tip/9ea74f7c70cd5e408f1cfbda0e6836929f820d49 Author: Piotr Luc <[email protected]> AuthorDate: Thu, 13 Apr 2017 22:10:56 +0200 Committer: Thomas Gleixner <[email protected]> CommitDate: Fri, 14 Apr 2017 10:46:12 +0200
x86/mce: Enable PPIN for Knights Landing/Mill Intel Xeon Phi processors (KNL and KNM) support PPIN as well, so add their CPUIDs to the whitelist of supported processors. Signed-off-by: Piotr Luc <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Cc: Tony Luck <[email protected]> Cc: linux-edac <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> --- arch/x86/kernel/cpu/mcheck/mce_intel.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel.c b/arch/x86/kernel/cpu/mcheck/mce_intel.c index 190b3e6..e84db79 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_intel.c +++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c @@ -481,6 +481,9 @@ static void intel_ppin_init(struct cpuinfo_x86 *c) case INTEL_FAM6_BROADWELL_XEON_D: case INTEL_FAM6_BROADWELL_X: case INTEL_FAM6_SKYLAKE_X: + case INTEL_FAM6_XEON_PHI_KNL: + case INTEL_FAM6_XEON_PHI_KNM: + if (rdmsrl_safe(MSR_PPIN_CTL, &val)) return;
