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KVM: Make paravirt tlb flush also reload the PAE PDPTRs 

The paravirt tlb flush may be used not only to flush TLBs, but also
to reload the four page-directory-pointer-table entries, as it is used
as a replacement for reloading CR3.  Change the code to do the entire
CR3 reloading dance instead of simply flushing the TLB.

Cc: stable@kernel.org
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2009-05-24 22:15:25 +03:00
parent 59a3759d0f
commit a8cd0244e9
1 changed files with 1 additions and 2 deletions
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3
arch/x86/kvm/mmu.c
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@ -2897,8 +2897,7 @@ static int kvm_pv_mmu_write(struct kvm_vcpu *vcpu,
static int kvm_pv_mmu_flush_tlb(struct kvm_vcpu *vcpu) static int kvm_pv_mmu_flush_tlb(struct kvm_vcpu *vcpu)
{ {
kvm_x86_ops->tlb_flush(vcpu); kvm_set_cr3(vcpu, vcpu->arch.cr3);
set_bit(KVM_REQ_MMU_SYNC, &vcpu->requests);
return 1; return 1;
} }