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target-s390: Convert STAP 

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2012-08-24 16:18:33 -07:00
parent e805a0d39e
commit 411fea3d84
2 changed files with 12 additions and 14 deletions
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2
target-s390x/insn-data.def
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@ -658,6 +658,8 @@
/* STORE CONTROL */
C(0xb600, STCTL, RS_a, Z, 0, a2, 0, 0, stctl, 0)
C(0xeb25, STCTG, RSY_a, Z, 0, a2, 0, 0, stctg, 0)
/* STORE CPU ADDRESS */
C(0xb212, STAP, S, Z, la2, 0, new, m1_16, stap, 0)
/* STORE CPU ID */
C(0xb202, STIDP, S, Z, la2, 0, new, m1_64, stidp, 0)
/* STORE CPU TIMER */

24
target-s390x/translate.c
View File

@ -1033,20 +1033,6 @@ static void disas_b2(CPUS390XState *env, DisasContext *s, int op,
LOG_DISAS("disas_b2: op 0x%x r1 %d r2 %d\n", op, r1, r2);
switch (op) {
case 0x12: /* STAP D2(B2) [S] */
/* Store CPU Address */
check_privileged(s);
decode_rs(s, insn, &r1, &r3, &b2, &d2);
tmp = get_address(s, 0, b2, d2);
tmp2 = tcg_temp_new_i64();
tmp32_1 = tcg_temp_new_i32();
tcg_gen_ld_i32(tmp32_1, cpu_env, offsetof(CPUS390XState, cpu_num));
tcg_gen_extu_i32_i64(tmp2, tmp32_1);
tcg_gen_qemu_st32(tmp2, tmp, get_mem_index(s));
tcg_temp_free_i64(tmp);
tcg_temp_free_i64(tmp2);
tcg_temp_free_i32(tmp32_1);
break;
case 0x21: /* IPTE R1,R2 [RRE] */
/* Invalidate PTE */
check_privileged(s);
@ -2859,6 +2845,16 @@ static ExitStatus op_ssm(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
static ExitStatus op_stap(DisasContext *s, DisasOps *o)
{
check_privileged(s);
/* ??? Surely cpu address != cpu number. In any case the previous
version of this stored more than the required half-word, so it
is unlikely this has ever been tested. */
tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, cpu_num));
return NO_EXIT;
}
static ExitStatus op_stck(DisasContext *s, DisasOps *o)
{
gen_helper_stck(o->out, cpu_env);