Re: [Xen-devel] [PATCH][SVM] Fix 32bit Windows guest VMs save/restore

[Wei Huang <wei.huang2@xxxxxxx>]

This is true. I thought about it. Some problematic code path can be 
"enter 32bit mode => execute sysenter => turn on long mode" (or vice 
versa). In this case, SYSENTER MSRs should be copied from VMCB to vcpu 
fields. But current Xen doesn't do so.
-Wei

On 01/31/2011 03:17 PM, Keir Fraser wrote:
>   suspect the current approach has
> further bugs because I don't believe the canonical sysenter msr values are
> correctly shuffled between the vmcb and vcpu structures


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel