Marcelo Tosatti wrote:
Required by EPT misconfiguration handler.
Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
Index: kvm/arch/x86/kvm/mmu.c
===================================================================
--- kvm.orig/arch/x86/kvm/mmu.c
+++ kvm/arch/x86/kvm/mmu.c
@@ -3013,6 +3013,24 @@ out:
return r;
}
+int kvm_mmu_get_spte_hierarchy(struct kvm_vcpu *vcpu, u64 addr, u64 *sptes[4])
+{
+ struct kvm_shadow_walk_iterator iterator;
+ int nr_sptes = 0;
+
+ spin_lock(&vcpu->kvm->mmu_lock);
+ for_each_shadow_entry(vcpu, addr, iterator) {
+ sptes[iterator.level-1] = iterator.sptep;
Returning a pointer...
+ nr_sptes++;
+ if (!is_shadow_present_pte(*iterator.sptep))
+ break;
+ }
+ spin_unlock(&vcpu->kvm->mmu_lock);
... and unlocking the lock that protects it.
True, this is called in extreme cases, but I think you can dereference
the pointer in the function just as easily.
--
error compiling committee.c: too many arguments to function
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