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Commit bf47a760 authored by Marcelo Tosatti's avatar Marcelo Tosatti Committed by Avi Kivity
Browse files

KVM: MMU: disable global page optimization 

Complexity to fix it not worthwhile the gains, as discussed
in http://article.gmane.org/gmane.comp.emulators.kvm.devel/28649

.

Cc: stable@kernel.org
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent d24d2c1c

arch/x86/kvm/mmu.c

+1 −1
Original line number Diff line number Diff line
@@ -1248,7 +1248,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, 
	pgprintk("%s: adding gfn %lx role %x\n", __func__, gfn, role.word);

	sp->gfn = gfn;

	sp->role = role;

	sp->global = role.cr4_pge;

	sp->global = 0;

	hlist_add_head(&sp->hash_link, bucket);

	if (!direct) {

		if (rmap_write_protect(vcpu->kvm, gfn))