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s390x/tcg: implement spm (SET PROGRAM MASK) 

Missing and is used inside Linux in the context of CPACF.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170920153016.3858-2-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2017-09-20 17:30:14 +02:00 committed by Cornelia Huck
parent d8f932cc69
commit 6b257354c4
3 changed files with 15 additions and 0 deletions
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2
target/s390x/cpu.h
View File

@ -292,6 +292,7 @@ extern const struct VMStateDescription vmstate_s390_cpu;
#undef PSW_SHIFT_ASC
#undef PSW_MASK_CC
#undef PSW_MASK_PM
#undef PSW_SHIFT_MASK_PM
#undef PSW_MASK_64
#undef PSW_MASK_32
#undef PSW_MASK_ESA_ADDR
@ -309,6 +310,7 @@ extern const struct VMStateDescription vmstate_s390_cpu;
#define PSW_SHIFT_ASC 46
#define PSW_MASK_CC 0x0000300000000000ULL
#define PSW_MASK_PM 0x00000F0000000000ULL
#define PSW_SHIFT_MASK_PM 40
#define PSW_MASK_64 0x0000000100000000ULL
#define PSW_MASK_32 0x0000000080000000ULL
#define PSW_MASK_ESA_ADDR 0x000000007fffffffULL

2
target/s390x/insn-data.def
View File

@ -755,6 +755,8 @@
C(0xb2b8, SRNMB, S, FPE, 0, 0, 0, 0, srnm, 0)
/* SET DFP ROUNDING MODE */
C(0xb2b9, SRNMT, S, DFPR, 0, 0, 0, 0, srnm, 0)
/* SET PROGRAM MASK */
C(0x0400, SPM, RR_a, Z, r1, 0, 0, 0, spm, 0)
/* SHIFT LEFT SINGLE */
D(0x8b00, SLA, RS_a, Z, r1, sh32, new, r1_32, sla, 0, 31)

11
target/s390x/translate.c
View File

@ -3796,6 +3796,17 @@ static ExitStatus op_srnm(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
static ExitStatus op_spm(DisasContext *s, DisasOps *o)
{
tcg_gen_extrl_i64_i32(cc_op, o->in1);
tcg_gen_extract_i32(cc_op, cc_op, 28, 2);
set_cc_static(s);
tcg_gen_shri_i64(o->in1, o->in1, 24);
tcg_gen_deposit_i64(psw_mask, psw_mask, o->in1, PSW_SHIFT_MASK_PM, 4);
return NO_EXIT;
}
#ifndef CONFIG_USER_ONLY
static ExitStatus op_spka(DisasContext *s, DisasOps *o)
{