linux-kernel - [GIT PULL] x86/cpu changes for v5.6

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Date:   Tue, 28 Jan 2020 18:57:51 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] x86/cpu changes for v5.6

Linus,

Please pull the latest x86-cpu-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-cpu-for-linus

   # HEAD: 283bab9809786cf41798512f5c1e97f4b679ba96 x86/cpu: Remove redundant cpu_detect_cache_sizes() call

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.

 Thanks,

	Ingo

------------------>
Borislav Petkov (2):
      x86/bugs: Move enum taa_mitigations to bugs.c
      x86/cpu/tsx: Define pr_fmt()

Sean Christopherson (20):
      x86/msr-index: Clean up bit defines for IA32_FEATURE_CONTROL MSR
      selftests, kvm: Replace manual MSR defs with common msr-index.h
      tools/x86: Sync msr-index.h from kernel sources
      x86/intel: Initialize IA32_FEAT_CTL MSR at boot
      x86/mce: WARN once if IA32_FEAT_CTL MSR is left unlocked
      x86/centaur: Use common IA32_FEAT_CTL MSR initialization
      x86/zhaoxin: Use common IA32_FEAT_CTL MSR initialization
      x86/cpu: Clear VMX feature flag if VMX is not fully enabled
      x86/vmx: Introduce VMX_FEATURES_*
      x86/cpu: Detect VMX features on Intel, Centaur and Zhaoxin CPUs
      x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_*
      x86/cpu: Set synthetic VMX cpufeatures during init_ia32_feat_ctl()
      x86/cpufeatures: Add flag to track whether MSR IA32_FEAT_CTL is configured
      KVM: VMX: Drop initialization of IA32_FEAT_CTL MSR
      KVM: VMX: Use VMX feature flag to query BIOS enabling
      KVM: VMX: Check for full VMX support when verifying CPU compatibility
      KVM: VMX: Use VMX_FEATURE_* flags to define VMCS control bits
      perf/x86: Provide stubs of KVM helpers for non-Intel CPUs
      KVM: VMX: Allow KVM_INTEL when building for Centaur and/or Zhaoxin CPUs
      x86/cpu: Print "VMX disabled" error message iff KVM is enabled

Tony W Wang-oc (1):
      x86/cpu: Remove redundant cpu_detect_cache_sizes() call