[PATCH] x86emul: correct a few scalar insn comments

[Jan Beulich <jbeulich@xxxxxxxx>]

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

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- 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) )