Re: [kvm-devel] 2.6.23.1-rt4 and kvm 48
From: Avi Kivity
Date: Tue Oct 30 2007 - 07:08:50 EST
Jan Kiszka wrote:
Interesting result - you've read about the wbinvd issues? Is there no
wbinvd in the bios shipped with older kvm? Which VM extension did you
test, both Intel and AMD? I would bet that your X issues are due to the
same effect. X startup/shutdown involves a lot of wbinvd calls on my
test boxes.
kvm.git now traps invd and wbinvd on amd, so there shouldn't be any
issues there. I hope that Intel will add similar traps in future
iterations of VT.
--
Any sufficiently difficult bug is indistinguishable from a feature.
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