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* [PATCH] x86: MISALIGNSSE feature depends on SSE
@ 2016-10-24 12:17 Jan Beulich
  2016-10-24 14:10 ` Andrew Cooper
  0 siblings, 1 reply; 3+ messages in thread
From: Jan Beulich @ 2016-10-24 12:17 UTC (permalink / raw)
  To: xen-devel; +Cc: Andrew Cooper, Wei Liu

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Suggested-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>

--- a/xen/tools/gen-cpuid.py
+++ b/xen/tools/gen-cpuid.py
@@ -196,8 +196,9 @@ def crunch_numbers(state):
 
         # SSE is taken to mean support for the %XMM registers as well as the
         # instructions.  Several futher instruction sets are built on core
-        # %XMM support, without specific inter-dependencies.
-        SSE: [SSE2, SSE3, SSSE3, SSE4A,
+        # %XMM support, without specific inter-dependencies.  Additionally
+        # AMD has a special mis-alignment sub-mode.
+        SSE: [SSE2, SSE3, SSSE3, SSE4A, MISALIGNSSE,
               AESNI, SHA],
 
         # SSE2 was re-specified as core instructions for 64bit.



[-- Attachment #2: x86-misalignsse-dep.patch --]
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x86: MISALIGNSSE feature depends on SSE

Suggested-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>

--- a/xen/tools/gen-cpuid.py
+++ b/xen/tools/gen-cpuid.py
@@ -196,8 +196,9 @@ def crunch_numbers(state):
 
         # SSE is taken to mean support for the %XMM registers as well as the
         # instructions.  Several futher instruction sets are built on core
-        # %XMM support, without specific inter-dependencies.
-        SSE: [SSE2, SSE3, SSSE3, SSE4A,
+        # %XMM support, without specific inter-dependencies.  Additionally
+        # AMD has a special mis-alignment sub-mode.
+        SSE: [SSE2, SSE3, SSSE3, SSE4A, MISALIGNSSE,
               AESNI, SHA],
 
         # SSE2 was re-specified as core instructions for 64bit.

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2016-10-24 12:17 [PATCH] x86: MISALIGNSSE feature depends on SSE Jan Beulich
2016-10-24 14:10 ` Andrew Cooper
2016-10-24 14:21   ` Wei Liu

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