diff mbox series

[07/10] x86emul: AVX512F scatter insns are memory writes

Message ID 752561bb-ab7a-e7c0-3bce-832b2162c755@suse.com (mailing list archive)
State New, archived
Headers show
Series x86emul: full coverage mem access / write testing | expand

Commit Message

Jan Beulich Aug. 3, 2020, 2:53 p.m. UTC 
While the custom handling renders the "to_mem" field generally unused,
x86_insn_is_mem_write() still (indirectly) consumes that information,
and hence the table entries want to be correct.

Fixes:  ("x86emul: support AVX512F scatter insns")
Signed-off-by: Jan Beulich <jbeulich@suse.com>
diff mbox series

Patch

--- a/xen/arch/x86/x86_emulate/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
@@ -516,7 +516,7 @@  static const struct ext0f38_table {
     [0x9d] = { .simd_size = simd_scalar_vexw, .d8s = d8s_dq },
     [0x9e] = { .simd_size = simd_packed_fp, .d8s = d8s_vl },
     [0x9f] = { .simd_size = simd_scalar_vexw, .d8s = d8s_dq },
-    [0xa0 ... 0xa3] = { .simd_size = simd_other, .vsib = 1, .d8s = d8s_dq },
+    [0xa0 ... 0xa3] = { .simd_size = simd_other, .to_mem = 1, .vsib = 1, .d8s = d8s_dq },
     [0xa6 ... 0xa8] = { .simd_size = simd_packed_fp, .d8s = d8s_vl },
     [0xa9] = { .simd_size = simd_scalar_vexw, .d8s = d8s_dq },
     [0xaa] = { .simd_size = simd_packed_fp, .d8s = d8s_vl },