linux-kernel - [PATCH v3 0/2] KVM: MSR-based features

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Message-ID: <20180221193941.12005.34137.stgit@tlendack-t1.amdoffice.net>
Date:   Wed, 21 Feb 2018 13:39:41 -0600
From:   Tom Lendacky <thomas.lendacky@....com>
To:     x86@...nel.org, linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Joerg Roedel <joro@...tes.org>, Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Radim Krčmář <rkrcmar@...hat.com>
Subject: [PATCH v3 0/2] KVM: MSR-based features

The following series implements support within KVM for MSR-based features.
The first patch creates the MSR-based feature framework used to retrieve
the available MSR-based features.  The second patch makes use of the
framework to allow a guest to determine if the LFENCE instruction is
serializing on AMD processors.

This series is based on the master branch of the KVM git tree.

https://git.kernel.org/pub/scm/virt/kvm/kvm.git

---

Changes from v2:
- Moved back to initializing the MSR-based feature list in kvm_init_msr_list()
  (based on the kvm_x86_ops callback return code)
- Removed the definition of KVM_GET_MSR and switched back to using KVM_GET_MSRS
- Consolidated the documentation to group the ioctl usage and describe the usage
  specific to the version of the ioctl used.

Tom Lendacky (2):
      KVM: x86: Add a framework for supporting MSR-based features
      KVM: SVM: Add MSR-based feature support for serializing LFENCE


 Documentation/virtual/kvm/api.txt |   29 +++++++++++----
 arch/x86/include/asm/kvm_host.h   |    2 +
 arch/x86/kvm/svm.c                |   43 ++++++++++++++++++++++
 arch/x86/kvm/x86.c                |   72 +++++++++++++++++++++++++++++++++++--
 include/uapi/linux/kvm.h          |    1 +
 5 files changed, 136 insertions(+), 11 deletions(-)

-- 
Tom Lendacky