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[PULL,03/12] target/s390x: Check reserved bits of VFMIN/VFMAX's M5

Message ID 20230823114544.216520-4-thuth@redhat.com
State New
Headers show
Series [PULL,01/12] hw: Add compat machines for 8.2 | expand

Commit Message

Thomas Huth Aug. 23, 2023, 11:45 a.m. UTC 
From: Ilya Leoshkevich <iii@linux.ibm.com>

VFMIN and VFMAX should raise a specification exceptions when bits 1-3
of M5 are set.

Cc: qemu-stable@nongnu.org
Fixes: da4807527f3b ("s390x/tcg: Implement VECTOR FP (MAXIMUM|MINIMUM)")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230804234621.252522-1-iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 target/s390x/tcg/translate_vx.c.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/target/s390x/tcg/translate_vx.c.inc b/target/s390x/tcg/translate_vx.c.inc
index f8df121d3d..b5d07d5ec5 100644
--- a/target/s390x/tcg/translate_vx.c.inc
+++ b/target/s390x/tcg/translate_vx.c.inc
@@ -3047,7 +3047,7 @@  static DisasJumpType op_vfmax(DisasContext *s, DisasOps *o)
     const uint8_t m5 = get_field(s, m5);
     gen_helper_gvec_3_ptr *fn;
 
-    if (m6 == 5 || m6 == 6 || m6 == 7 || m6 >= 13) {
+    if (m6 == 5 || m6 == 6 || m6 == 7 || m6 >= 13 || (m5 & 7)) {
         gen_program_exception(s, PGM_SPECIFICATION);
         return DISAS_NORETURN;
     }