2018-02-22 3:39 GMT+08:00 Tom Lendacky <thomas.lenda...@amd.com>: > 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.
Is there a qemu patch for LFENCE instruction? Regards, Wanpeng Li > > 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
