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From: Razvan Cojocaru <rcojocaru@bitdefender.com>
To: "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
	keir@xen.org, Jan Beulich <JBeulich@suse.com>
Subject: Possible problem emulating movntq, movss
Date: Wed, 06 Aug 2014 11:57:05 +0300	[thread overview]
Message-ID: <53E1EDE1.5040207@bitdefender.com> (raw)

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

             reply	other threads:[~2014-08-06  8:57 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-06  8:57 Razvan Cojocaru [this message]
2014-08-06  9:22 ` Possible problem emulating movntq, movss Andrew Cooper
2014-08-06  9:54 ` Jan Beulich
2014-08-06 10:39   ` Razvan Cojocaru
2014-08-06 10:47   ` Andrei LUTAS
2014-08-06 11:05     ` Andrew Cooper
2014-08-06 11:22       ` Razvan Cojocaru
2014-08-06 12:16     ` Jan Beulich
2014-08-06 12:50       ` Jan Beulich
2014-08-07  8:09         ` Razvan Cojocaru
2014-08-06 12:29     ` Jan Beulich

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