Intel SDM revision 062 finally makes this explicit.
Signed-off-by: Jan Beulich <[email protected]>
--- a/xen/arch/x86/x86_emulate/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
@@ -6719,6 +6719,7 @@ x86_emulate(
goto simd_0f_imm8_avx;
case X86EMUL_OPC(0x0f, 0xc3): /* movnti */
+ generate_exception_if(vex.pfx, EXC_UD);
/* Ignore the non-temporal hint for now. */
vcpu_must_have(sse2);
dst.val = src.val;
x86emul: MOVNTI does not allow 66/F3/F2 prefixes
Intel SDM revision 062 finally makes this explicit.
Signed-off-by: Jan Beulich <[email protected]>
--- a/xen/arch/x86/x86_emulate/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
@@ -6719,6 +6719,7 @@ x86_emulate(
goto simd_0f_imm8_avx;
case X86EMUL_OPC(0x0f, 0xc3): /* movnti */
+ generate_exception_if(vex.pfx, EXC_UD);
/* Ignore the non-temporal hint for now. */
vcpu_must_have(sse2);
dst.val = src.val;
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