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Subject[PATCH v4 00/12] KVM: nVMX: Enlightened VMCS for Hyper-V on KVM
Date
Changes since v3:
- Rebase to the current kvm/queue.
- Add nested state migration support [Paolo Bonzini]
- Add a selftest [Paolo Bonzini]

Patches 7-12 are new in v4.

Description:

This is an initial implementation of Enlightened VMCS for nested Hyper-V on
KVM. Using it helps to spare 1500 cpu cycles for nested vmexit (tight cpuid
loop in WS2016 with Hyper-V role on KVM: 15200 cycles -> 13700 cycles).

Ladi Prosek (1):
KVM: hyperv: define VP assist page helpers

Vitaly Kuznetsov (11):
KVM: VMX: refactor evmcs_sanitize_exec_ctrls()
KVM: nVMX: add KVM_CAP_HYPERV_ENLIGHTENED_VMCS capability
KVM: nVMX: add enlightened VMCS state
KVM: nVMX: implement enlightened VMPTRLD and VMCLEAR
KVM: nVMX: optimize prepare_vmcs02{,_full} for Enlightened VMCS case
x86/kvm/hyperv: don't clear VP assist pages on init
x86/kvm/lapic: preserve gfn_to_hva_cache len on cache reinit
x86/kvm/nVMX: allow bare VMXON state migration
x86/kvm/nVMX: nested state migration for Enlightened VMCS
KVM: selftests: compile against local uapi headers
KVM: selftests: add Enlightened VMCS test

arch/x86/include/asm/kvm_host.h | 3 +
arch/x86/include/uapi/asm/kvm.h | 1 +
arch/x86/kvm/hyperv.c | 31 +-
arch/x86/kvm/hyperv.h | 4 +
arch/x86/kvm/lapic.c | 14 +-
arch/x86/kvm/lapic.h | 2 +-
arch/x86/kvm/svm.c | 9 +
arch/x86/kvm/vmx.c | 886 +++++++++++++++++----
arch/x86/kvm/x86.c | 23 +-
include/uapi/linux/kvm.h | 1 +
tools/testing/selftests/kvm/Makefile | 3 +-
tools/testing/selftests/kvm/evmcs_test.c | 181 +++++
tools/testing/selftests/kvm/include/evmcs.h | 1099 +++++++++++++++++++++++++++
tools/testing/selftests/kvm/include/vmx.h | 28 +
tools/testing/selftests/kvm/lib/vmx.c | 48 +-
15 files changed, 2151 insertions(+), 182 deletions(-)
create mode 100644 tools/testing/selftests/kvm/evmcs_test.c
create mode 100644 tools/testing/selftests/kvm/include/evmcs.h

--
2.14.4

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