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target/s390x: exception on non-aligned LPSW(E) 

Both LPSW and LPSWE should raise a specification exception when their
operand is not doubleword aligned.

Signed-off-by: Pavel Zbitskiy <pavel.zbitskiy@gmail.com>
Message-Id: <20180902003322.3428-3-pavel.zbitskiy@gmail.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
Pavel Zbitskiy 2018-09-01 20:33:21 -04:00 committed by Cornelia Huck
parent 28221f9c99
commit ae4b5a5472
1 changed files with 4 additions and 2 deletions
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6
target/s390x/translate.c
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@ -2835,7 +2835,8 @@ static DisasJumpType op_lpsw(DisasContext *s, DisasOps *o)
t1 = tcg_temp_new_i64();
t2 = tcg_temp_new_i64();
tcg_gen_qemu_ld32u(t1, o->in2, get_mem_index(s));
tcg_gen_qemu_ld_i64(t1, o->in2, get_mem_index(s),
MO_TEUL | MO_ALIGN_8);
tcg_gen_addi_i64(o->in2, o->in2, 4);
tcg_gen_qemu_ld32u(t2, o->in2, get_mem_index(s));
/* Convert the 32-bit PSW_MASK into the 64-bit PSW_MASK. */
@ -2855,7 +2856,8 @@ static DisasJumpType op_lpswe(DisasContext *s, DisasOps *o)
t1 = tcg_temp_new_i64();
t2 = tcg_temp_new_i64();
tcg_gen_qemu_ld64(t1, o->in2, get_mem_index(s));
tcg_gen_qemu_ld_i64(t1, o->in2, get_mem_index(s),
MO_TEQ | MO_ALIGN_8);
tcg_gen_addi_i64(o->in2, o->in2, 8);
tcg_gen_qemu_ld64(t2, o->in2, get_mem_index(s));
gen_helper_load_psw(cpu_env, t1, t2);