[Xen-devel] AMD SVM question (svm_asid_g_invlpg)

[Gianluca Guida <gianluca.guida@xxxxxxxxxxxxx>]

Hello,

SVM code doesn't use the INVLPGA instruction, but rather invalidate the 
whole ASID when invalidating a guest page.
INVLPG exit is enabled only on shadow code, which is smart enough to 
handle corner cases like splintered pagetables invlpg's.
Is this a workaround for some buggy hardware? Is there any problem in 
enabling the INVLPGA instruction?
Thanks,
Gianluca

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