Recent changes to the SDM (and XED) have made clear that older hardware
raising #UD when the bit is set was really an erratum. Generalize the
so far AMD-only override.
Signed-off-by: Jan Beulich <jbeul...@suse.com>
--- a/xen/arch/x86/x86_emulate/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
@@ -5598,9 +5598,8 @@ x86_emulate(
}
else
{
- if ( ctxt->vendor == X86_VENDOR_AMD )
- vex.l = 0;
- generate_exception_if(vex.l || vex.reg != 0xf, EXC_UD);
+ generate_exception_if(vex.reg != 0xf, EXC_UD);
+ vex.l = 0;
host_and_vcpu_must_have(avx);
get_fpu(X86EMUL_FPU_ymm, &fic);
}
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