mirror_ubuntu-kernels/arch/x86/kvm/svm
Michael Roth a7fc06dd2f KVM: SVM: use .prepare_guest_switch() to handle CPU register save/setup
Currently we save host state like user-visible host MSRs, and do some
initial guest register setup for MSR_TSC_AUX and MSR_AMD64_TSC_RATIO
in svm_vcpu_load(). Defer this until just before we enter the guest by
moving the handling to kvm_x86_ops.prepare_guest_switch() similarly to
how it is done for the VMX implementation.

Additionally, since handling of saving/restoring host user MSRs is the
same both with/without SEV-ES enabled, move that handling to common
code.

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Michael Roth <michael.roth@amd.com>
Message-Id: <20210202190126.2185715-4-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-04 05:27:35 -05:00
..
avic.c KVM: X86: Don't track dirty for KVM_SET_[TSS_ADDR|IDENTITY_MAP_ADDR] 2020-11-15 09:49:12 -05:00
nested.c KVM: X86: Rename DR6_INIT to DR6_ACTIVE_LOW 2021-02-04 05:27:27 -05:00
pmu.c KVM: x86/pmu: Tweak kvm_pmu_get_msr to pass 'struct msr_data' in 2020-06-01 04:26:08 -04:00
sev.c KVM: SVM: use .prepare_guest_switch() to handle CPU register save/setup 2021-02-04 05:27:35 -05:00
svm_ops.h KVM: SVM: use vmsave/vmload for saving/restoring additional host state 2021-02-04 05:27:34 -05:00
svm.c KVM: SVM: use .prepare_guest_switch() to handle CPU register save/setup 2021-02-04 05:27:35 -05:00
svm.h KVM: SVM: use .prepare_guest_switch() to handle CPU register save/setup 2021-02-04 05:27:35 -05:00
vmenter.S KVM: SVM: Provide an updated VMRUN invocation for SEV-ES guests 2020-12-15 05:20:59 -05:00