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[10/12] target/s390x: Handle STGRL to non-aligned addresses

Message ID 20230310174223.944843-11-iii@linux.ibm.com
State New
Headers show
Series target/s390x: Handle unaligned accesses | expand

Commit Message

Ilya Leoshkevich March 10, 2023, 5:42 p.m. UTC 
Use MO_ALIGN_8 and let do_unaligned_access() generate a specification
exception.

Reported-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Suggested-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
 target/s390x/tcg/insn-data.h.inc | 8 ++++----
 target/s390x/tcg/translate.c     | 3 ++-
 2 files changed, 6 insertions(+), 5 deletions(-)

Comments

Richard Henderson March 10, 2023, 7:34 p.m. UTC | #1 
On 3/10/23 09:42, Ilya Leoshkevich wrote:
> Use MO_ALIGN_8 and let do_unaligned_access() generate a specification
> exception.
> 
> Reported-by: Nina Schoetterl-Glausch<nsg@linux.ibm.com>
> Suggested-by: Nina Schoetterl-Glausch<nsg@linux.ibm.com>
> Signed-off-by: Ilya Leoshkevich<iii@linux.ibm.com>
> ---
>   target/s390x/tcg/insn-data.h.inc | 8 ++++----
>   target/s390x/tcg/translate.c     | 3 ++-
>   2 files changed, 6 insertions(+), 5 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~
diff mbox series

Patch

diff --git a/target/s390x/tcg/insn-data.h.inc b/target/s390x/tcg/insn-data.h.inc
index 4e635fb1677..c60e29b3ad9 100644
--- a/target/s390x/tcg/insn-data.h.inc
+++ b/target/s390x/tcg/insn-data.h.inc
@@ -842,14 +842,14 @@ 
 /* STORE */
     D(0x5000, ST,      RX_a,  Z,   r1_o, a2, 0, 0, st32, 0, 0)
     D(0xe350, STY,     RXY_a, LD,  r1_o, a2, 0, 0, st32, 0, 0)
-    C(0xe324, STG,     RXY_a, Z,   r1_o, a2, 0, 0, st64, 0)
-    F(0x6000, STD,     RX_a,  Z,   f1, a2, 0, 0, st64, 0, IF_AFP1)
-    F(0xed67, STDY,    RXY_a, LD,  f1, a2, 0, 0, st64, 0, IF_AFP1)
+    D(0xe324, STG,     RXY_a, Z,   r1_o, a2, 0, 0, st64, 0, 0)
+    E(0x6000, STD,     RX_a,  Z,   f1, a2, 0, 0, st64, 0, 0, IF_AFP1)
+    E(0xed67, STDY,    RXY_a, LD,  f1, a2, 0, 0, st64, 0, 0, IF_AFP1)
     E(0x7000, STE,     RX_a,  Z,   e1, a2, 0, 0, st32, 0, 0, IF_AFP1)
     E(0xed66, STEY,    RXY_a, LD,  e1, a2, 0, 0, st32, 0, 0, IF_AFP1)
 /* STORE RELATIVE LONG */
     D(0xc40f, STRL,    RIL_b, GIE, r1_o, ri2, 0, 0, st32, 0, MO_ALIGN_4)
-    C(0xc40b, STGRL,   RIL_b, GIE, r1_o, ri2, 0, 0, st64, 0)
+    D(0xc40b, STGRL,   RIL_b, GIE, r1_o, ri2, 0, 0, st64, 0, MO_ALIGN_8)
 /* STORE CHARACTER */
     C(0x4200, STC,     RX_a,  Z,   r1_o, a2, 0, 0, st8, 0)
     C(0xe372, STCY,    RXY_a, LD,  r1_o, a2, 0, 0, st8, 0)
diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
index 818f3292c5c..5609ea2e93d 100644
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -4504,7 +4504,8 @@  static DisasJumpType op_st32(DisasContext *s, DisasOps *o)
 
 static DisasJumpType op_st64(DisasContext *s, DisasOps *o)
 {
-    tcg_gen_qemu_st64(o->in1, o->in2, get_mem_index(s));
+    tcg_gen_qemu_st_i64(o->in1, o->in2, get_mem_index(s),
+                        MO_TEUQ | s->insn->data);
     return DISAS_NEXT;
 }