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[Stable-8.0.3 17/54] target/s390x: Fix LCBB overwriting the top 32 bits
From: |
Michael Tokarev |
Subject: |
[Stable-8.0.3 17/54] target/s390x: Fix LCBB overwriting the top 32 bits |
Date: |
Mon, 26 Jun 2023 21:49:24 +0300 |
From: Ilya Leoshkevich <iii@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-stable@nongnu.org
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230526181240.1425579-2-iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit 079181b9bc60389e106009a1530d3cc42256f567)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff --git a/target/s390x/tcg/insn-data.h.inc b/target/s390x/tcg/insn-data.h.inc
index 1f1ac742a9..025facec09 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_P, 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
- [PATCH 0/6] migration: Test the new "file:" migration, Fabiano Rosas, 2023/06/26
- [PATCH 2/6] tests/qtest: migration: Expose migrate_set_capability, Fabiano Rosas, 2023/06/26
- [PATCH 1/6] migration: Set migration status early in incoming side, Fabiano Rosas, 2023/06/26
- [PATCH 3/6] tests/qtest: migration: Add migrate_incoming_qmp helper, Fabiano Rosas, 2023/06/26
- [PATCH 4/6] tests/qtest: migration: Use migrate_incoming_qmp where appropriate, Fabiano Rosas, 2023/06/26
- [PATCH 5/6] tests/qtest: migration: Add support for negative testing of qmp_migrate, Fabiano Rosas, 2023/06/26
- [PATCH 6/6] tests/qtest: migration-test: Add tests for file-based migration, Fabiano Rosas, 2023/06/26