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SubjectRe: [PATCH 3/4] KVM: VMX: Fix stale docs for kvm-intel.emulate_invalid_guest_state
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On Tue, 2021-12-07 at 19:30 +0000, Sean Christopherson wrote:
> Update the documentation for kvm-intel's emulate_invalid_guest_state to
> rectify the description of KVM's default behavior, and to document that
> the behavior and thus parameter only applies to L1.
>
> Fixes: a27685c33acc ("KVM: VMX: Emulate invalid guest state by default")
> Signed-off-by: Sean Christopherson <seanjc@google.com>
> ---
> Documentation/admin-guide/kernel-parameters.txt | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index 9725c546a0d4..fc34332c8d9a 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -2413,8 +2413,12 @@
> Default is 1 (enabled)
>
> kvm-intel.emulate_invalid_guest_state=
> - [KVM,Intel] Enable emulation of invalid guest states
> - Default is 0 (disabled)
> + [KVM,Intel] Disable emulation of invalid guest state.
> + Ignored if kvm-intel.enable_unrestricted_guest=1, as
> + guest state is never invalid for unrestricted guests.
> + This param doesn't apply to nested guests (L2), as KVM
> + never emulates invalid L2 guest state.
> + Default is 1 (enabled)
>
> kvm-intel.flexpriority=
> [KVM,Intel] Disable FlexPriority feature (TPR shadow).
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Best regards,
Maxim Levitsky

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