[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH v3 01/14] target/s390x: Make CKSM raise an exception if R2 is odd
From: |
Ilya Leoshkevich |
Subject: |
[PATCH v3 01/14] target/s390x: Make CKSM raise an exception if R2 is odd |
Date: |
Thu, 20 Jul 2023 00:11:13 +0200 |
R2 designates an even-odd register pair; the instruction should raise
a specification exception when R2 is not even.
Cc: qemu-stable@nongnu.org
Fixes: e023e832d0ac ("s390x: translate engine for s390x CPU")
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
target/s390x/tcg/translate.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
index 6661b27efa4..2f61e879878 100644
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -1991,11 +1991,18 @@ static DisasJumpType op_cxlgb(DisasContext *s, DisasOps
*o)
static DisasJumpType op_cksm(DisasContext *s, DisasOps *o)
{
int r2 = get_field(s, r2);
- TCGv_i128 pair = tcg_temp_new_i128();
- TCGv_i64 len = tcg_temp_new_i64();
+ TCGv_i128 pair;
+ TCGv_i64 len;
+
+ if (r2 & 1) {
+ gen_program_exception(s, PGM_SPECIFICATION);
+ return DISAS_NORETURN;
+ }
+ pair = tcg_temp_new_i128();
gen_helper_cksm(pair, cpu_env, o->in1, o->in2, regs[r2 + 1]);
set_cc_static(s);
+ len = tcg_temp_new_i64();
tcg_gen_extr_i128_i64(o->out, len, pair);
tcg_gen_add_i64(regs[r2], regs[r2], len);
--
2.41.0
- [PATCH v3 00/14] target/s390x: Miscellaneous TCG fixes, part 2, Ilya Leoshkevich, 2023/07/19
- [PATCH v3 03/14] target/s390x: Fix CONVERT TO LOGICAL/FIXED with out-of-range inputs, Ilya Leoshkevich, 2023/07/19
- [PATCH v3 01/14] target/s390x: Make CKSM raise an exception if R2 is odd,
Ilya Leoshkevich <=
- [PATCH v3 02/14] target/s390x: Fix CLM with M3=0, Ilya Leoshkevich, 2023/07/19
- [PATCH v3 05/14] target/s390x: Make MC raise specification exception when class >= 16, Ilya Leoshkevich, 2023/07/19
- [PATCH v3 07/14] target/s390x: Fix assertion failure in VFMIN/VFMAX with type 13, Ilya Leoshkevich, 2023/07/19
- [PATCH v3 10/14] tests/tcg/s390x: Test CLM, Ilya Leoshkevich, 2023/07/19
- [PATCH v3 06/14] tcg/{i386, s390x}: Add earlyclobber to the op_add2's first output, Ilya Leoshkevich, 2023/07/19