kvm: x86: Skip shadow page resync on CR3 switch when indicated by guest

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When the guest indicates that the TLB doesn't need to be flushed in a
CR3 switch, we can also skip resyncing the shadow page tables since an
out-of-sync shadow page table is equivalent to an out-of-sync TLB.

Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Junaid Shahid 2018-06-27 14:59:18 -07:00 • committed by Paolo Bonzini

parent 08fb59d8a4

commit 956bf3531f

3 changed files with 34 additions and 7 deletions

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33

arch/x86/kvm/mmu.c

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2

arch/x86/kvm/vmx.c

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6

arch/x86/kvm/x86.c

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