Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpu-features updates from Ingo Molnar:
 "The biggest change in this cycle was a large series from Sean
  Christopherson to clean up the handling of VMX features. This both
  fixes bugs/inconsistencies and makes the code more coherent and
  future-proof.

  There are also two cleanups and a minor TSX syslog messages
  enhancement"

* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  x86/cpu: Remove redundant cpu_detect_cache_sizes() call
  x86/cpu: Print "VMX disabled" error message iff KVM is enabled
  KVM: VMX: Allow KVM_INTEL when building for Centaur and/or Zhaoxin CPUs
  perf/x86: Provide stubs of KVM helpers for non-Intel CPUs
  KVM: VMX: Use VMX_FEATURE_* flags to define VMCS control bits
  KVM: VMX: Check for full VMX support when verifying CPU compatibility
  KVM: VMX: Use VMX feature flag to query BIOS enabling
  KVM: VMX: Drop initialization of IA32_FEAT_CTL MSR
  x86/cpufeatures: Add flag to track whether MSR IA32_FEAT_CTL is configured
  x86/cpu: Set synthetic VMX cpufeatures during init_ia32_feat_ctl()
  x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_*
  x86/cpu: Detect VMX features on Intel, Centaur and Zhaoxin CPUs
  x86/vmx: Introduce VMX_FEATURES_*
  x86/cpu: Clear VMX feature flag if VMX is not fully enabled
  x86/zhaoxin: Use common IA32_FEAT_CTL MSR initialization
  x86/centaur: Use common IA32_FEAT_CTL MSR initialization
  x86/mce: WARN once if IA32_FEAT_CTL MSR is left unlocked
  x86/intel: Initialize IA32_FEAT_CTL MSR at boot
  tools/x86: Sync msr-index.h from kernel sources
  selftests, kvm: Replace manual MSR defs with common msr-index.h
  ...

arch/x86/kernel/cpu/common.c

@@ -1457,6 +1457,9 @@ static void identify_cpu(struct cpuinfo_x86 *c)
 #endif
 	c->x86_cache_alignment = c->x86_clflush_size;
 	memset(&c->x86_capability, 0, sizeof(c->x86_capability));
+#ifdef CONFIG_X86_VMX_FEATURE_NAMES
+	memset(&c->vmx_capability, 0, sizeof(c->vmx_capability));
+#endif
 
 	generic_identify(c);