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Date: Wed, 26 Dec 2007 13:05:22 +0200 From: Avi Kivity <avi@...ranet.com> To: linux-kernel@...r.kernel.org, kvm-devel@...ts.sourceforge.net Subject: [PATCH 17/55] KVM: MMU: Topup the mmu memory preallocation caches before emulating an insn Emulation may cause a shadow pte to be instantiated, which requires memory resources. Make sure the caches are filled to avoid an oops. Signed-off-by: Avi Kivity <avi@...ranet.com> --- drivers/kvm/mmu.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c index ace3cb8..9be54a5 100644 --- a/drivers/kvm/mmu.c +++ b/drivers/kvm/mmu.c @@ -1362,6 +1362,10 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code) goto out; } + r = mmu_topup_memory_caches(vcpu); + if (r) + goto out; + er = emulate_instruction(vcpu, vcpu->run, cr2, error_code, 0); mutex_unlock(&vcpu->kvm->lock); -- 1.5.3.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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