From: Jan Beulich <jbeulich@suse.com>
Date: Fri, 4 Mar 2022 08:30:07 +0000 (+0100)
Subject: x86emul: correct a few scalar insn comments
X-Git-Tag: archive/raspbian/4.17.0-1+rpi1^2~33^2~861
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=248496f890562fd6d6fea779520dd6335269e92c;p=xen.git

x86emul: correct a few scalar insn comments

Truly scalar insns (i.e. not VBROADCASTS{S,D}) only every act on
%xmm<N>. Adjust comments accordingly.

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

diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c b/xen/arch/x86/x86_emulate/x86_emulate.c
index 6c0d18954a..7f6af911bc 100644
--- a/xen/arch/x86/x86_emulate/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
@@ -7608,8 +7608,8 @@ x86_emulate(
 #ifndef X86EMUL_NO_SIMD
     case X86EMUL_OPC_VEX_66(0x0f3a, 0x08): /* vroundps $imm8,{x,y}mm/mem,{x,y}mm */
     case X86EMUL_OPC_VEX_66(0x0f3a, 0x09): /* vroundpd $imm8,{x,y}mm/mem,{x,y}mm */
-    case X86EMUL_OPC_VEX_66(0x0f3a, 0x0a): /* vroundss $imm8,{x,y}mm/mem,{x,y}mm,{x,y}mm */
-    case X86EMUL_OPC_VEX_66(0x0f3a, 0x0b): /* vroundsd $imm8,{x,y}mm/mem,{x,y}mm,{x,y}mm */
+    case X86EMUL_OPC_VEX_66(0x0f3a, 0x0a): /* vroundss $imm8,xmm/mem,xmm,xmm */
+    case X86EMUL_OPC_VEX_66(0x0f3a, 0x0b): /* vroundsd $imm8,xmm/mem,xmm,xmm */
     case X86EMUL_OPC_VEX_66(0x0f3a, 0x0c): /* vblendps $imm8,{x,y}mm/mem,{x,y}mm,{x,y}mm */
     case X86EMUL_OPC_VEX_66(0x0f3a, 0x0d): /* vblendpd $imm8,{x,y}mm/mem,{x,y}mm,{x,y}mm */
     case X86EMUL_OPC_VEX_66(0x0f3a, 0x40): /* vdpps $imm8,{x,y}mm/mem,{x,y}mm,{x,y}mm */
@@ -10576,8 +10576,8 @@ x86_emulate(
         host_and_vcpu_must_have(sse4_1);
         goto simd_0f3a_common;
 
-    case X86EMUL_OPC_EVEX_66(0x0f3a, 0x0a): /* vrndscaless $imm8,[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
-    case X86EMUL_OPC_EVEX_66(0x0f3a, 0x0b): /* vrndscalesd $imm8,[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
+    case X86EMUL_OPC_EVEX_66(0x0f3a, 0x0a): /* vrndscaless $imm8,xmm/mem,xmm,xmm{k} */
+    case X86EMUL_OPC_EVEX_66(0x0f3a, 0x0b): /* vrndscalesd $imm8,xmm/mem,xmm,xmm{k} */
         generate_exception_if(ea.type != OP_REG && evex.brs, EXC_UD);
         /* fall through */
     case X86EMUL_OPC_EVEX_66(0x0f3a, 0x08): /* vrndscaleps $imm8,[xyz]mm/mem,[xyz]mm{k} */
@@ -11063,7 +11063,7 @@ x86_emulate(
         break;
 
     case X86EMUL_OPC_EVEX_66(0x0f3a, 0x66): /* vfpclassp{s,d} $imm8,[xyz]mm/mem,k{k} */
-    case X86EMUL_OPC_EVEX_66(0x0f3a, 0x67): /* vfpclasss{s,d} $imm8,[xyz]mm/mem,k{k} */
+    case X86EMUL_OPC_EVEX_66(0x0f3a, 0x67): /* vfpclasss{s,d} $imm8,xmm/mem,k{k} */
         host_and_vcpu_must_have(avx512dq);
         generate_exception_if(!evex.r || !evex.R || evex.z, EXC_UD);
         if ( !(b & 1) )