Commit 7f7417d6 authored by Ingo Molnar's avatar Ingo Molnar Committed by Linus Torvalds
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[PATCH] KVM: Avoid oom on cr3 switch 



Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 86a2b42e

drivers/kvm/mmu.c

+2 −0
Original line number Diff line number Diff line
@@ -905,6 +905,8 @@ static void paging_new_cr3(struct kvm_vcpu *vcpu) 
{

	pgprintk("%s: cr3 %lx\n", __FUNCTION__, vcpu->cr3);

	mmu_free_roots(vcpu);

	if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))

		kvm_mmu_free_some_pages(vcpu);

	mmu_alloc_roots(vcpu);

	kvm_mmu_flush_tlb(vcpu);

	kvm_arch_ops->set_cr3(vcpu, vcpu->mmu.root_hpa);