From: "Jan Beulich" <JBeulich@suse.com>
To: xen-devel <xen-devel@lists.xenproject.org>
Cc: George Dunlap <George.Dunlap@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Wei Liu <wei.liu2@citrix.com>, Juergen Gross <jgross@suse.com>,
Roger Pau Monne <roger.pau@citrix.com>
Subject: [PATCH] x86emul: don't read mask register on AVX512F-incapable platforms
Date: Thu, 28 Mar 2019 11:03:45 -0600 [thread overview]
Message-ID: <5C9CFE7102000078002229A1@prv1-mh.provo.novell.com> (raw)
Reported-by: George Dunlap <george.dunlap@citrix.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
---
This is surely a stable tree candidate, unless it could still make it
into 4.12 before the release.
--- a/xen/arch/x86/x86_emulate/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
@@ -3511,7 +3511,7 @@ x86_emulate(
}
/* With a memory operand, fetch the mask register in use (if any). */
- if ( ea.type == OP_MEM && evex.opmsk )
+ if ( ea.type == OP_MEM && cpu_has_avx512f && evex.opmsk )
{
uint8_t *stb = get_stub(stub);
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next reply other threads:[~2019-03-28 17:03 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-28 17:03 Jan Beulich [this message]
2019-03-28 17:44 ` [PATCH] x86emul: don't read mask register on AVX512F-incapable platforms George Dunlap
2019-03-28 18:03 ` Andrew Cooper
2019-03-29 6:59 ` Jan Beulich
2019-03-29 7:42 ` [PATCH v2] " Jan Beulich
2019-03-29 9:19 ` Andrew Cooper
2019-03-29 9:36 ` Jan Beulich
2019-03-29 10:02 ` Andrew Cooper
2019-03-29 10:56 ` Jan Beulich
2019-04-01 14:14 ` Andrew Cooper
2019-04-01 15:02 ` Jan Beulich
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