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s390x/tcg: Implement VECTOR STORE 

Properly probe the whole access first.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-29-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2019-03-07 13:15:35 +01:00 committed by Cornelia Huck
parent c5a7392cfb
commit 15e12add0b
2 changed files with 19 additions and 0 deletions
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2
target/s390x/insn-data.def
View File

@ -1034,6 +1034,8 @@
F(0xe78d, VSEL, VRR_e, V, 0, 0, 0, 0, vsel, 0, IF_VEC)
/* VECTOR SIGN EXTEND TO DOUBLEWORD */
F(0xe75f, VSEG, VRR_a, V, 0, 0, 0, 0, vseg, 0, IF_VEC)
/* VECTOR STORE */
F(0xe70e, VST, VRX, V, la2, 0, 0, 0, vst, 0, IF_VEC)
#ifndef CONFIG_USER_ONLY
/* COMPARE AND SWAP AND PURGE */

17
target/s390x/translate_vx.inc.c
View File

@ -113,6 +113,7 @@ static void write_vec_element_i64(TCGv_i64 src, int reg, uint8_t enr,
}
}
static void get_vec_element_ptr_i64(TCGv_ptr ptr, uint8_t reg, TCGv_i64 enr,
uint8_t es)
{
@ -817,3 +818,19 @@ static DisasJumpType op_vseg(DisasContext *s, DisasOps *o)
tcg_temp_free_i64(tmp);
return DISAS_NEXT;
}
static DisasJumpType op_vst(DisasContext *s, DisasOps *o)
{
TCGv_i64 tmp = tcg_const_i64(16);
/* Probe write access before actually modifying memory */
gen_helper_probe_write_access(cpu_env, o->addr1, tmp);
read_vec_element_i64(tmp, get_field(s->fields, v1), 0, ES_64);
tcg_gen_qemu_st_i64(tmp, o->addr1, get_mem_index(s), MO_TEQ);
gen_addi_and_wrap_i64(s, o->addr1, o->addr1, 8);
read_vec_element_i64(tmp, get_field(s->fields, v1), 1, ES_64);
tcg_gen_qemu_st_i64(tmp, o->addr1, get_mem_index(s), MO_TEQ);
tcg_temp_free_i64(tmp);
return DISAS_NEXT;
}