[Xen-changelog] [xen stable-4.12] x86emul: add support for missing {, V}PMADDWD insns

[patchbot@xxxxxxx]

commit b89fe9fdbcb98a321a27a9927e9a06aad6dc4f2b
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Tue Jun 4 15:39:04 2019 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Jun 4 15:39:04 2019 +0200

    x86emul: add support for missing {,V}PMADDWD insns
    
    Their pre-AVX512 incarnations have clearly been overlooked during much
    earlier work. Their memory access pattern is entirely standard, so no
    specific tests get added to the harness.
    
    Reported-by: Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Tested-by: Alexandru Isaila <aisaila@xxxxxxxxxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    master commit: 1a48bdd599b268a2d9b7d0c45f1fd40c4892186e
    master date: 2019-05-16 13:43:17 +0200
---
 xen/arch/x86/x86_emulate/x86_emulate.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c 
b/xen/arch/x86/x86_emulate/x86_emulate.c
index a617e09d08..1c8fc712d1 100644
--- a/xen/arch/x86/x86_emulate/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
@@ -6579,6 +6579,8 @@ x86_emulate(
     case X86EMUL_OPC_VEX_66(0x0f, 0xf3): /* vpsllq xmm/m128,{x,y}mm,{x,y}mm */
     case X86EMUL_OPC_66(0x0f, 0xf4):     /* pmuludq xmm/m128,xmm */
     case X86EMUL_OPC_VEX_66(0x0f, 0xf4): /* vpmuludq 
{x,y}mm/mem,{x,y}mm,{x,y}mm */
+    CASE_SIMD_PACKED_INT(0x0f, 0xf5):    /* pmaddwd {,x}mm/mem,{,x}mm */
+    case X86EMUL_OPC_VEX_66(0x0f, 0xf5): /* vpmaddwd 
{x,y}mm/mem,{x,y}mm,{x,y}mm */
     case X86EMUL_OPC_66(0x0f, 0xf6):     /* psadbw xmm/m128,xmm */
     case X86EMUL_OPC_VEX_66(0x0f, 0xf6): /* vpsadbw 
{x,y}mm/mem,{x,y}mm,{x,y}mm */
     CASE_SIMD_PACKED_INT(0x0f, 0xf8):    /* psubb {,x}mm/mem,{,x}mm */
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.12

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