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KVM: ppc: stop leaking host memory on VM exit

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When the VM exits, we must call put_page() for every page referenced in the
shadow TLB.

Without this patch, we usually leak 30-50 host pages (120 - 200 KiB with 4 KiB
pages). The maximum number of pages leaked is the size of our shadow TLB, 64
pages.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Hollis Blanchard
2008-11-24 11:37:38 -06:00
committed by Avi Kivity
parent 0c0f40bdbe
commit c30f8a6c6d
3 changed files with 11 additions and 0 deletions
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arch/powerpc/kvm/powerpc.c
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@@ -238,6 +238,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
{
kvmppc_core_destroy_mmu(vcpu);
}
/* Note: clearing MSR[DE] just means that the debug interrupt will not be