Re: [PATCH v2 2/5] KVM: MMU: check guest CR3 reserved bits based on its physical address width.

[Yu Zhang]

On 8/17/2017 8:31 PM, Paolo Bonzini wrote:

On 17/08/2017 21:52, Yu Zhang wrote:

+               if (efer & EFER_LMA) {
+                       u64 maxphyaddr;
+                       u32 eax = 0x80000008;
+
+                       if (ctxt->ops->get_cpuid(ctxt, &eax, NULL, NULL, NULL,
+                                                NO_CHECK_LIMIT)) {
+                               maxphyaddr = eax & 0xff;
+                               rsvd = rsvd_bits(maxphyaddr, 62);
+                       }

You should use 36 here if ctxt->ops->get_cpuid returns false, for
consistency with cpuid_query_maxphyaddr.

Oh, right. Thanks! :-)

Yu