On 23/10/2015 11:15, Jian Zhou wrote: > Changelog in v2: > (1) move the implementation into vmx.c > (2) migraton is supported > (3) add arrays in kvm_vcpu_arch struct to save/restore > LBR MSRs at vm exit/entry time. > (4) add a parameter of kvm_intel module to permanently > disable LBRV > (5) table of supported CPUs is reorgnized, LBRV > can be enabled or not according to the guest CPUID > > Jian Zhou (4): > KVM: X86: Add arrays to save/restore LBR MSRs > KVM: X86: LBR MSRs of supported CPU types > KVM: X86: Migration is supported > KVM: VMX: details of LBR virtualization implementation > > arch/x86/include/asm/kvm_host.h | 26 ++++- > arch/x86/include/asm/msr-index.h | 26 ++++- > arch/x86/kvm/vmx.c | 245 +++++++++++++++++++++++++++++++++++++++ > arch/x86/kvm/x86.c | 88 ++++++++++++-- > 4 files changed, 366 insertions(+), 19 deletions(-) Thanks, this looks better! The reason why it took me so long to review it, is that I wanted to understand what happens if you're running this on CPU model x but using CPU model y for the guest. I still haven't grokked that fully, so I'll apply your patches locally and play with them. In the meanwhile, feel free to send v3 with: 1) the tweak I suggested to patch 3; 2) the fix for the problem that the buildbot reported on patch 1. Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
