linux-kernel - [PATCH 0/6] KVM: x86: CPUID emulation and tracing fixes

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Date:   Mon,  2 Mar 2020 11:57:30 -0800
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jan Kiszka <jan.kiszka@...mens.com>,
        Xiaoyao Li <xiaoyao.li@...el.com>
Subject: [PATCH 0/6] KVM: x86: CPUID emulation and tracing fixes

Two fixes related to out-of-range CPUID emulation and related cleanup on
top.

I have a unit test and also manually verified a few interesting cases.
I'm not planning on posting the unit test at this time because I haven't
figured out how to avoid false positives, e.g. if a random in-bounds
leaf just happens to match the output of a max basic leaf.  It might be
doable by hardcoding the cpu model?

Sean Christopherson (6):
  KVM: x86: Fix tracing of CPUID.function when function is out-of-range
  KVM: x86: Fix CPUID range check for Centaur and Hypervisor ranges
  KVM: x86: Add dedicated emulator helper for grabbing CPUID.maxphyaddr
  KVM: x86: Drop return value from kvm_cpuid()
  KVM: x86: Rename "found" variable in kvm_cpuid() to
    "exact_entry_exists"
  KVM: x86: Add requested index to the CPUID tracepoint

 arch/x86/include/asm/kvm_emulate.h |  3 ++-
 arch/x86/kvm/cpuid.c               | 26 ++++++++++++--------------
 arch/x86/kvm/cpuid.h               |  2 +-
 arch/x86/kvm/emulate.c             | 10 +---------
 arch/x86/kvm/trace.h               | 13 ++++++++-----
 arch/x86/kvm/x86.c                 | 10 ++++++++--
 6 files changed, 32 insertions(+), 32 deletions(-)

-- 
2.24.1