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| author | Avi Kivity <avi@qumranet.com> | 2007-10-28 19:52:05 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-01-30 18:52:57 +0300 |
| commit | b733bfb524af69612f85c36a511f0109c5e3fe8d (patch) | |
| tree | 7d9920070b78d7d84f7def39501bb211dc8de602 /drivers/kvm/mmu.c | |
| parent | 3067714cf59bd4a6dbf788b709485bc62c1ff845 (diff) | |
| download | linux-b733bfb524af69612f85c36a511f0109c5e3fe8d.tar.xz | |
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@qumranet.com>
Diffstat (limited to 'drivers/kvm/mmu.c')
| -rw-r--r-- | 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 ace3cb86214b..9be54a5e858e 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); |