From: Ilya Leoshkevich <i...@linux.ibm.com>
LCBB is supposed to overwrite only the bottom 32 bits, but QEMU
erroneously overwrites the entire register.
Fixes: 6d9303322ed9 ("s390x/tcg: Implement LOAD COUNT TO BLOCK BOUNDARY")
Cc: qemu-sta...@nongnu.org
Signed-off-by: Ilya Leoshkevich <i...@linux.ibm.com>
Message-Id: <20230526181240.1425579-2-...@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Reviewed-by: David Hildenbrand <da...@redhat.com>
Signed-off-by: Thomas Huth <th...@redhat.com>
(cherry picked from commit 079181b9bc60389e106009a1530d3cc42256f567)
Signed-off-by: Michael Tokarev <m...@tls.msk.ru>
diff --git a/target/s390x/tcg/insn-data.h.inc b/target/s390x/tcg/insn-data.h.inc
index 13ffdda4da..9f0d6380be 100644
--- a/target/s390x/tcg/insn-data.h.inc
+++ b/target/s390x/tcg/insn-data.h.inc
@@ -486,7 +486,7 @@
F(0xb343, LCXBR, RRE, Z, x2h, x2l, new_P, x1, negf128, f128, IF_BFP)
F(0xb373, LCDFR, RRE, FPSSH, 0, f2, new, f1, negf64, 0, IF_AFP1 |
IF_AFP2)
/* LOAD COUNT TO BLOCK BOUNDARY */
- C(0xe727, LCBB, RXE, V, la2, 0, r1, 0, lcbb, 0)
+ C(0xe727, LCBB, RXE, V, la2, 0, new, r1_32, lcbb, 0)
/* LOAD HALFWORD */
C(0xb927, LHR, RRE, EI, 0, r2_16s, 0, r1_32, mov2, 0)
C(0xb907, LGHR, RRE, EI, 0, r2_16s, 0, r1, mov2, 0)
--
2.39.2
