Re: [Xen-devel] Problem with Xen 4.5 failing XTF tests on old AMD cpus ?

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

Andrew Cooper writes ("Re: Problem with Xen 4.5 failing XTF tests on old AMD 
cpus ?"):
> This is the 4.5 tree missing some fixes:
> 
> * 31d961f - x86/hvm: Fix invalidation for emulated invlpg instructions 
> (4 months ago) <Andrew Cooper>
> * eee511d - x86/svm: Don't unconditionally use a new ASID in 
> svm_invlpg_intercept() (4 months ago) <Andrew Cooper>
> * a373db2 - x86/hvm: Correct the emulated interaction of invlpg with 
> segments (4 months ago) <Andrew Cooper>
> * a94b35d - x86/hvm: Raise #SS faults for %ss-based segmentation 
> violations (4 months ago) <Andrew Cooper>
> * 6093515 - x86/hvm: Always return the linear address from 
> hvm_virtual_to_linear_addr() (4 months ago) <Andrew Cooper>
> 
> In this case, XTF is complaining that `invlpg`, as used in a shadow 
> guest, is not behaving in the architecturally specified way.

I think it is probably not sensible to backport these kind of
changes (and especially not to 4.5).

Ian.

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