This series combines previously sent: - "[PATCH 00/11] KVM: VMX: Support TscScaling and EnclsExitingBitmap with eVMCS" (https://lore.kernel.org/kvm/20220621155830.60115-1-vkuznets@xxxxxxxxxx/) and - "[PATCH 00/14] KVM: nVMX: Use vmcs_config for setting up nested VMX MSRs" (https://lore.kernel.org/kvm/20220627160440.31857-1-vkuznets@xxxxxxxxxx/) this is done to address Jim's concern that any changes to L1 VMX control MSRs will inevitably break live migration. This version should not produce changes. Original description: Enlightened VMCS v1 definition was updates to include fields for the following features: - PerfGlobalCtrl - EnclsExitingBitmap - TSC scaling - GuestLbrCtl - CET - SSP Add support for EnclsExitingBitmap and TSC scaling to KVM. PerfGlobalCtrl doesn't work correctly with Win11, don't enable it yet. SSP, CET and GuestLbrCtl are not currently supported by KVM. Note: adding new field for KVM on Hyper-V case is easy but adding them to Hyper-V on KVM requires some work to not break live migration as we never expected this to happen without eVMCS version update. The series introduces new KVM_CAP_HYPERV_ENLIGHTENED_VMCS2 capability and a notion of KVM internal 'Enlightened VMCS revision'. While on it, implement Sean's idea to use vmcs_config for setting up L1 VMX control MSRs instead of re-reading host MSRs. Sean Christopherson (1): KVM: VMX: Clear controls obsoleted by EPT at runtime, not setup Vitaly Kuznetsov (27): KVM: x86: hyper-v: Expose access to debug MSRs in the partition privilege flags x86/hyperv: Fix 'struct hv_enlightened_vmcs' definition x86/hyperv: Update 'struct hv_enlightened_vmcs' definition KVM: VMX: Define VMCS-to-EVMCS conversion for the new fields KVM: nVMX: Support several new fields in eVMCSv1 KVM: nVMX: Introduce KVM_CAP_HYPERV_ENLIGHTENED_VMCS2 KVM: selftests: Switch to KVM_CAP_HYPERV_ENLIGHTENED_VMCS2 KVM: VMX: Support TSC scaling with enlightened VMCS KVM: selftests: Add ENCLS_EXITING_BITMAP{,HIGH} VMCS fields KVM: selftests: Switch to updated eVMCSv1 definition KVM: selftests: Enable TSC scaling in evmcs selftest KVM: VMX: Enable VM_{EXIT,ENTRY}_LOAD_IA32_PERF_GLOBAL_CTRL for KVM on Hyper-V KVM: VMX: Get rid of eVMCS specific VMX controls sanitization KVM: VMX: Check VM_ENTRY_IA32E_MODE in setup_vmcs_config() KVM: VMX: Check CPU_BASED_{INTR,NMI}_WINDOW_EXITING in setup_vmcs_config() KVM: VMX: Tweak the special handling of SECONDARY_EXEC_ENCLS_EXITING in setup_vmcs_config() KVM: VMX: Extend VMX controls macro shenanigans KVM: VMX: Move CPU_BASED_CR8_{LOAD,STORE}_EXITING filtering out of setup_vmcs_config() KVM: VMX: Add missing VMEXIT controls to vmcs_config KVM: VMX: Add missing VMENTRY controls to vmcs_config KVM: VMX: Add missing CPU based VM execution controls to vmcs_config KVM: VMX: Move LOAD_IA32_PERF_GLOBAL_CTRL errata handling out of setup_vmcs_config() KVM: nVMX: Use sanitized allowed-1 bits for VMX control MSRs KVM: VMX: Store required-1 VMX controls in vmcs_config KVM: nVMX: Use sanitized required-1 bits for VMX control MSRs KVM: VMX: Cache MSR_IA32_VMX_MISC in vmcs_config KVM: nVMX: Use cached host MSR_IA32_VMX_MISC value for setting up nested MSR Documentation/virt/kvm/api.rst | 43 ++- arch/x86/include/asm/hyperv-tlfs.h | 19 +- arch/x86/include/asm/kvm_host.h | 2 +- arch/x86/kvm/hyperv.c | 1 + arch/x86/kvm/vmx/capabilities.h | 16 +- arch/x86/kvm/vmx/evmcs.c | 135 ++++++--- arch/x86/kvm/vmx/evmcs.h | 34 ++- arch/x86/kvm/vmx/nested.c | 80 ++++-- arch/x86/kvm/vmx/nested.h | 2 +- arch/x86/kvm/vmx/vmx.c | 269 +++++++++--------- arch/x86/kvm/vmx/vmx.h | 133 ++++++++- arch/x86/kvm/x86.c | 15 +- include/asm-generic/hyperv-tlfs.h | 2 + include/uapi/linux/kvm.h | 3 +- .../selftests/kvm/include/kvm_util_base.h | 8 + .../selftests/kvm/include/x86_64/evmcs.h | 46 ++- .../selftests/kvm/include/x86_64/vmx.h | 2 + tools/testing/selftests/kvm/lib/x86_64/vmx.c | 5 +- .../testing/selftests/kvm/x86_64/evmcs_test.c | 33 ++- .../selftests/kvm/x86_64/hyperv_cpuid.c | 2 +- .../kvm/x86_64/vmx_set_nested_state_test.c | 2 +- 21 files changed, 597 insertions(+), 255 deletions(-) -- 2.35.3
