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SubjectRe: [PATCH 0/7] KVM: SVM: baby steps towards nested state migration
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On 5/15/20 10:41 AM, Paolo Bonzini wrote:
> Here are some refactorings to prepare for an SVM implementation of
> KVM_SET_NESTED_STATE. It's a prerequisite for that to eliminate
> exit_required, moving exceptions to svm_check_nested_events. However:
>
> - I might work on that soon, because it's needed to handle RSM when
> the L1 hypervisor wants to get it from #UD rather than the specific
> RSM intercept
>
> - this should be enough to get a quick prototype, that I need in order to
> debug a particularly crazy bug and figure out its reproducibility.
>
> So, I am getting these patches out of my todo list for now.
>
> Thanks,
>
> Paolo
>
> Paolo Bonzini (7):
> KVM: SVM: move map argument out of enter_svm_guest_mode
> KVM: SVM: extract load_nested_vmcb_control
> KVM: SVM: extract preparation of VMCB for nested run
> KVM: SVM: save all control fields in svm->nested
> KVM: nSVM: remove HF_VINTR_MASK
> KVM: nSVM: do not reload pause filter fields from VMCB
> KVM: SVM: introduce data structures for nested virt state
>
> arch/x86/include/asm/kvm_host.h | 1 -
> arch/x86/include/uapi/asm/kvm.h | 26 +++++++-
> arch/x86/kvm/svm/nested.c | 115 +++++++++++++++++---------------
> arch/x86/kvm/svm/svm.c | 11 ++-
> arch/x86/kvm/svm/svm.h | 28 +++++---
> 5 files changed, 116 insertions(+), 65 deletions(-)
>
Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>

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