[PATCH v2 0/2] KVM: SVM: Create separate vmcbs for L1 and L2
From: Cathy Avery
Date: Sun Oct 11 2020 - 14:48:34 EST
svm->vmcb will now point to either a separate vmcb L1 ( not nested ) or L2 vmcb ( nested ).
Changes:
v1 -> v2
- Removed unnecessary update check of L1 save.cr3 during nested_svm_vmexit.
- Moved vmcb01_pa to svm.
- Removed get_host_vmcb() function.
- Updated vmsave/vmload corresponding vmcb state during L2
enter and exit which fixed the L2 load issue.
- Moved asid workaround to a new patch which adds asid to svm.
- Init previously uninitialized L2 vmcb save.gpat and save.cr4
Tested:
kvm-unit-tests
kvm self tests
Loaded fedora nested guest on fedora
Cathy Avery (2):
KVM: SVM: Move asid to vcpu_svm
KVM: SVM: Use a separate vmcb for the nested L2 guest
arch/x86/kvm/svm/nested.c | 117 +++++++++++++++++---------------------
arch/x86/kvm/svm/svm.c | 46 ++++++++-------
arch/x86/kvm/svm/svm.h | 50 +++++-----------
3 files changed, 93 insertions(+), 120 deletions(-)
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2.20.1