[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] vmx: last branch recording MSR emulation
On 9/8/07 13:47, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote: > Finally, with LBR registers being used in Xen itself (optionally), you'd > expose > hypervisor internal information to HVM's, which is generally considered a > security risk. Well, that's due to the current rather stupid policy of defaulting HVM MSR reads to read the native MSR. MSR handling needs unifying and a big clean up, just like has now happened to the control registers. Same for CPUID (which has a similarly stupid policy to that of MSR reads). -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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