Messages in this thread | | | From | Vitaly Kuznetsov <> | Subject | [PATCH v2 0/4] KVM: SVM: nSVM: Implement Enlightened MSR-Bitmap for Hyper-V-on-KVM | Date | Wed, 2 Feb 2022 10:50:56 +0100 |
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Changes since v1: - Patches 1/2 from "[PATCH 0/5] KVM: SVM: nSVM: Implement Enlightened MSR-Bitmap for Hyper-V-on-KVM and fix it for KVM-on-Hyper-V" are already merged, dropped. - Fix build when !CONFIG_HYPERV (PATCH3 "KVM: nSVM: Split off common definitions for Hyper-V on KVM and KVM on Hyper-V" added).
Description:
Enlightened MSR-Bitmap feature implements a PV protocol for L0 and L1 hypervisors to collaborate and skip unneeded updates to MSR-Bitmap. KVM already implements the feature for KVM-on-Hyper-V.
Vitaly Kuznetsov (4): KVM: nSVM: Track whether changes in L0 require MSR bitmap for L2 to be rebuilt KVM: x86: Make kvm_hv_hypercall_enabled() static inline KVM: nSVM: Split off common definitions for Hyper-V on KVM and KVM on Hyper-V KVM: nSVM: Implement Enlightened MSR-Bitmap feature
arch/x86/kvm/hyperv.c | 12 +-------- arch/x86/kvm/hyperv.h | 6 ++++- arch/x86/kvm/svm/hyperv.h | 35 ++++++++++++++++++++++++ arch/x86/kvm/svm/nested.c | 47 ++++++++++++++++++++++++++++----- arch/x86/kvm/svm/svm.c | 3 ++- arch/x86/kvm/svm/svm.h | 11 ++++++++ arch/x86/kvm/svm/svm_onhyperv.h | 25 +----------------- 7 files changed, 95 insertions(+), 44 deletions(-) create mode 100644 arch/x86/kvm/svm/hyperv.h
-- 2.34.1
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