KVM: x86/mmu: Do not set paging-related bits in MMU role if CR0.PG=0

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Don't set CR0/CR4/EFER bits in the MMU role if paging is disabled, paging
modifiers are irrelevant if there is no paging in the first place.
Somewhat arbitrarily clear gpte_is_8_bytes for shadow paging if paging is
disabled in the guest.  Again, there are no guest PTEs to process, so the
size is meaningless.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622175739.3610207-27-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2021-06-22 10:57:11 -07:00 • committed by Paolo Bonzini

parent 6066772455

commit ca8d664f50

1 changed files with 14 additions and 10 deletions

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arch/x86/kvm/mmu/mmu.c

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