>> Will never be use, PDPTEs are loaded by set_cr3(), not walk_addr().
>>
>
> I see, then how about to replace CR3_PAE_RESERVED_BITS check at cr3
> load with
> rsvd_bits_mask[2]? Seems current code are lacking of enough reserved
> bits check too.
>
typo, I mean this:
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -233,7 +233,7 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3)
goto out;
}
for (i = 0; i < ARRAY_SIZE(pdpte); ++i) {
- if ((pdpte[i] & 1) && (pdpte[i] & 0xfffffff0000001e6ull)) {
+ if ((pdpte[i] & 1) && (pdpte[i] &
vcpu->arch.mmu.rsvd_bits_mask[0][2])) {
ret = 0;
goto out;
}
(--
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