Messages in this thread | | | Date | Tue, 27 Apr 2010 19:02:22 +0300 | From | Avi Kivity <> | Subject | Re: [PATCH 16/22] KVM: MMU: Track page fault data in struct vcpu |
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On 04/27/2010 04:57 PM, Joerg Roedel wrote: > >> But the nested guest can use pae paging and generate a #NPF with >> exit_info_2> 4GB. So we need to keep the full fault address; if we >> truncate, the guest might actually resolve the fault and let the >> nested guest continue. >> > This could only be a malicious guest because it can't have memory above > 4gb. But a guest could certainly setup its page tables to point there, > thats true. So I change it to u64. >
It doesn't need to be malicious, for example it could set up an mmio PCI BAR outside the 4GB space.
-- error compiling committee.c: too many arguments to function
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