KVM: nSVM: implement KVM_GET_NESTED_STATE and KVM_SET_NESTED_STATE

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Similar to VMX, the state that is captured through the currently available
IOCTLs is a mix of L1 and L2 state, dependent on whether the L2 guest was
running at the moment when the process was interrupted to save its state.

In particular, the SVM-specific state for nested virtualization includes
the L1 saved state (including the interrupt flag), the cached L2 controls,
and the GIF.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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This commit is contained in:

Paolo Bonzini 2020-05-13 13:36:32 -04:00

parent 8ec107c89b

commit cc440cdad5

6 changed files with 171 additions and 7 deletions

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17

arch/x86/include/uapi/asm/kvm.h

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5

arch/x86/kvm/cpuid.h

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147

arch/x86/kvm/svm/nested.c

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1

arch/x86/kvm/svm/svm.c

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arch/x86/kvm/vmx/nested.c

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arch/x86/kvm/x86.c

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