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[Xen-devel] Possible problem emulating movntq, movss
- To: "xen-devel@xxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxx>
- From: Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>
- Date: Wed, 06 Aug 2014 11:57:05 +0300
- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, keir@xxxxxxx, Jan Beulich <JBeulich@xxxxxxxx>
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- Delivery-date: Wed, 06 Aug 2014 08:57:25 +0000
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Hello,
We found that our HVM guests froze when trying to emulate movntq
instructions. The solution seems to be to replace "goto done;" with
"break;" at line 4191 (when handling "case 0x7f:") in
xen/arch/x86/x86_emulate/x86_emulate.c. Otherwise the writeback part
doesn't happen.
If you're happy with the fix I can prepare a patch, otherwise please let
me know if we're missing something.
Thanks,
Razvan Cojocaru
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