782 lines
22 KiB
C
782 lines
22 KiB
C
/*
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* S/390 misc helper routines
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*
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* Copyright (c) 2009 Ulrich Hecht
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* Copyright (c) 2009 Alexander Graf
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "qemu/main-loop.h"
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#include "cpu.h"
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#include "internal.h"
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#include "exec/memory.h"
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#include "qemu/host-utils.h"
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#include "exec/helper-proto.h"
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#include "qemu/timer.h"
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#include "exec/exec-all.h"
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#include "exec/cpu_ldst.h"
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#include "qapi/error.h"
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#include "tcg_s390x.h"
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#include "s390-tod.h"
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#if !defined(CONFIG_USER_ONLY)
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#include "sysemu/cpus.h"
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#include "sysemu/sysemu.h"
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#include "hw/s390x/ebcdic.h"
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#include "hw/s390x/s390-virtio-hcall.h"
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#include "hw/s390x/sclp.h"
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#include "hw/s390x/s390_flic.h"
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#include "hw/s390x/ioinst.h"
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#include "hw/s390x/s390-pci-inst.h"
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#include "hw/boards.h"
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#include "hw/s390x/tod.h"
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#endif
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/* #define DEBUG_HELPER */
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#ifdef DEBUG_HELPER
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#define HELPER_LOG(x...) qemu_log(x)
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#else
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#define HELPER_LOG(x...)
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#endif
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/* Raise an exception statically from a TB. */
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void HELPER(exception)(CPUS390XState *env, uint32_t excp)
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{
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CPUState *cs = env_cpu(env);
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HELPER_LOG("%s: exception %d\n", __func__, excp);
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cs->exception_index = excp;
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cpu_loop_exit(cs);
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}
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/* Store CPU Timer (also used for EXTRACT CPU TIME) */
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uint64_t HELPER(stpt)(CPUS390XState *env)
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{
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#if defined(CONFIG_USER_ONLY)
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/*
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* Fake a descending CPU timer. We could get negative values here,
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* but we don't care as it is up to the OS when to process that
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* interrupt and reset to > 0.
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*/
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return UINT64_MAX - (uint64_t)cpu_get_host_ticks();
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#else
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return time2tod(env->cputm - qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL));
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#endif
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}
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/* Store Clock */
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uint64_t HELPER(stck)(CPUS390XState *env)
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{
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#ifdef CONFIG_USER_ONLY
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struct timespec ts;
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uint64_t ns;
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clock_gettime(CLOCK_REALTIME, &ts);
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ns = ts.tv_sec * NANOSECONDS_PER_SECOND + ts.tv_nsec;
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return TOD_UNIX_EPOCH + time2tod(ns);
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#else
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S390TODState *td = s390_get_todstate();
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S390TODClass *tdc = S390_TOD_GET_CLASS(td);
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S390TOD tod;
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tdc->get(td, &tod, &error_abort);
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return tod.low;
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#endif
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}
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#ifndef CONFIG_USER_ONLY
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/* SCLP service call */
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uint32_t HELPER(servc)(CPUS390XState *env, uint64_t r1, uint64_t r2)
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{
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qemu_mutex_lock_iothread();
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int r = sclp_service_call(env, r1, r2);
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qemu_mutex_unlock_iothread();
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if (r < 0) {
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tcg_s390_program_interrupt(env, -r, GETPC());
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}
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return r;
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}
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void HELPER(diag)(CPUS390XState *env, uint32_t r1, uint32_t r3, uint32_t num)
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{
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uint64_t r;
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switch (num) {
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case 0x500:
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/* KVM hypercall */
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qemu_mutex_lock_iothread();
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r = s390_virtio_hypercall(env);
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qemu_mutex_unlock_iothread();
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break;
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case 0x44:
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/* yield */
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r = 0;
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break;
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case 0x308:
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/* ipl */
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qemu_mutex_lock_iothread();
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handle_diag_308(env, r1, r3, GETPC());
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qemu_mutex_unlock_iothread();
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r = 0;
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break;
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case 0x288:
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/* time bomb (watchdog) */
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r = handle_diag_288(env, r1, r3);
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break;
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default:
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r = -1;
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break;
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}
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if (r) {
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tcg_s390_program_interrupt(env, PGM_SPECIFICATION, GETPC());
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}
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}
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/* Set Prefix */
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void HELPER(spx)(CPUS390XState *env, uint64_t a1)
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{
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CPUState *cs = env_cpu(env);
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uint32_t prefix = a1 & 0x7fffe000;
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env->psa = prefix;
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HELPER_LOG("prefix: %#x\n", prefix);
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tlb_flush_page(cs, 0);
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tlb_flush_page(cs, TARGET_PAGE_SIZE);
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}
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static void update_ckc_timer(CPUS390XState *env)
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{
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S390TODState *td = s390_get_todstate();
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uint64_t time;
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/* stop the timer and remove pending CKC IRQs */
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timer_del(env->tod_timer);
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g_assert(qemu_mutex_iothread_locked());
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env->pending_int &= ~INTERRUPT_EXT_CLOCK_COMPARATOR;
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/* the tod has to exceed the ckc, this can never happen if ckc is all 1's */
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if (env->ckc == -1ULL) {
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return;
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}
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/* difference between origins */
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time = env->ckc - td->base.low;
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/* nanoseconds */
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time = tod2time(time);
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timer_mod(env->tod_timer, time);
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}
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/* Set Clock Comparator */
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void HELPER(sckc)(CPUS390XState *env, uint64_t ckc)
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{
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env->ckc = ckc;
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qemu_mutex_lock_iothread();
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update_ckc_timer(env);
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qemu_mutex_unlock_iothread();
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}
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void tcg_s390_tod_updated(CPUState *cs, run_on_cpu_data opaque)
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{
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S390CPU *cpu = S390_CPU(cs);
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update_ckc_timer(&cpu->env);
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}
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/* Set Clock */
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uint32_t HELPER(sck)(CPUS390XState *env, uint64_t tod_low)
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{
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S390TODState *td = s390_get_todstate();
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S390TODClass *tdc = S390_TOD_GET_CLASS(td);
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S390TOD tod = {
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.high = 0,
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.low = tod_low,
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};
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qemu_mutex_lock_iothread();
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tdc->set(td, &tod, &error_abort);
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qemu_mutex_unlock_iothread();
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return 0;
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}
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/* Set Tod Programmable Field */
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void HELPER(sckpf)(CPUS390XState *env, uint64_t r0)
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{
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uint32_t val = r0;
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if (val & 0xffff0000) {
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tcg_s390_program_interrupt(env, PGM_SPECIFICATION, GETPC());
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}
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env->todpr = val;
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}
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/* Store Clock Comparator */
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uint64_t HELPER(stckc)(CPUS390XState *env)
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{
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return env->ckc;
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}
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/* Set CPU Timer */
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void HELPER(spt)(CPUS390XState *env, uint64_t time)
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{
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if (time == -1ULL) {
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return;
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}
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/* nanoseconds */
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time = tod2time(time);
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env->cputm = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + time;
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timer_mod(env->cpu_timer, env->cputm);
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}
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/* Store System Information */
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uint32_t HELPER(stsi)(CPUS390XState *env, uint64_t a0, uint64_t r0, uint64_t r1)
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{
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const uintptr_t ra = GETPC();
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const uint32_t sel1 = r0 & STSI_R0_SEL1_MASK;
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const uint32_t sel2 = r1 & STSI_R1_SEL2_MASK;
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const MachineState *ms = MACHINE(qdev_get_machine());
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uint16_t total_cpus = 0, conf_cpus = 0, reserved_cpus = 0;
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S390CPU *cpu = env_archcpu(env);
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SysIB sysib = { };
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int i, cc = 0;
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if ((r0 & STSI_R0_FC_MASK) > STSI_R0_FC_LEVEL_3) {
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/* invalid function code: no other checks are performed */
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return 3;
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}
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if ((r0 & STSI_R0_RESERVED_MASK) || (r1 & STSI_R1_RESERVED_MASK)) {
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tcg_s390_program_interrupt(env, PGM_SPECIFICATION, ra);
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}
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if ((r0 & STSI_R0_FC_MASK) == STSI_R0_FC_CURRENT) {
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/* query the current level: no further checks are performed */
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env->regs[0] = STSI_R0_FC_LEVEL_3;
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return 0;
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}
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if (a0 & ~TARGET_PAGE_MASK) {
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tcg_s390_program_interrupt(env, PGM_SPECIFICATION, ra);
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}
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/* count the cpus and split them into configured and reserved ones */
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for (i = 0; i < ms->possible_cpus->len; i++) {
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total_cpus++;
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if (ms->possible_cpus->cpus[i].cpu) {
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conf_cpus++;
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} else {
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reserved_cpus++;
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}
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}
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/*
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* In theory, we could report Level 1 / Level 2 as current. However,
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* the Linux kernel will detect this as running under LPAR and assume
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* that we have a sclp linemode console (which is always present on
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* LPAR, but not the default for QEMU), therefore not displaying boot
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* messages and making booting a Linux kernel under TCG harder.
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*
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* For now we fake the same SMP configuration on all levels.
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*
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* TODO: We could later make the level configurable via the machine
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* and change defaults (linemode console) based on machine type
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* and accelerator.
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*/
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switch (r0 & STSI_R0_FC_MASK) {
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case STSI_R0_FC_LEVEL_1:
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if ((sel1 == 1) && (sel2 == 1)) {
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/* Basic Machine Configuration */
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char type[5] = {};
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ebcdic_put(sysib.sysib_111.manuf, "QEMU ", 16);
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/* same as machine type number in STORE CPU ID, but in EBCDIC */
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snprintf(type, ARRAY_SIZE(type), "%X", cpu->model->def->type);
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ebcdic_put(sysib.sysib_111.type, type, 4);
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/* model number (not stored in STORE CPU ID for z/Architecure) */
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ebcdic_put(sysib.sysib_111.model, "QEMU ", 16);
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ebcdic_put(sysib.sysib_111.sequence, "QEMU ", 16);
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ebcdic_put(sysib.sysib_111.plant, "QEMU", 4);
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} else if ((sel1 == 2) && (sel2 == 1)) {
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/* Basic Machine CPU */
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ebcdic_put(sysib.sysib_121.sequence, "QEMUQEMUQEMUQEMU", 16);
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ebcdic_put(sysib.sysib_121.plant, "QEMU", 4);
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sysib.sysib_121.cpu_addr = cpu_to_be16(env->core_id);
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} else if ((sel1 == 2) && (sel2 == 2)) {
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/* Basic Machine CPUs */
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sysib.sysib_122.capability = cpu_to_be32(0x443afc29);
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sysib.sysib_122.total_cpus = cpu_to_be16(total_cpus);
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sysib.sysib_122.conf_cpus = cpu_to_be16(conf_cpus);
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sysib.sysib_122.reserved_cpus = cpu_to_be16(reserved_cpus);
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} else {
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cc = 3;
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}
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break;
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case STSI_R0_FC_LEVEL_2:
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if ((sel1 == 2) && (sel2 == 1)) {
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/* LPAR CPU */
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ebcdic_put(sysib.sysib_221.sequence, "QEMUQEMUQEMUQEMU", 16);
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ebcdic_put(sysib.sysib_221.plant, "QEMU", 4);
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sysib.sysib_221.cpu_addr = cpu_to_be16(env->core_id);
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} else if ((sel1 == 2) && (sel2 == 2)) {
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/* LPAR CPUs */
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sysib.sysib_222.lcpuc = 0x80; /* dedicated */
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sysib.sysib_222.total_cpus = cpu_to_be16(total_cpus);
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sysib.sysib_222.conf_cpus = cpu_to_be16(conf_cpus);
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sysib.sysib_222.reserved_cpus = cpu_to_be16(reserved_cpus);
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ebcdic_put(sysib.sysib_222.name, "QEMU ", 8);
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sysib.sysib_222.caf = cpu_to_be32(1000);
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sysib.sysib_222.dedicated_cpus = cpu_to_be16(conf_cpus);
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} else {
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cc = 3;
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}
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break;
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case STSI_R0_FC_LEVEL_3:
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if ((sel1 == 2) && (sel2 == 2)) {
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/* VM CPUs */
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sysib.sysib_322.count = 1;
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sysib.sysib_322.vm[0].total_cpus = cpu_to_be16(total_cpus);
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sysib.sysib_322.vm[0].conf_cpus = cpu_to_be16(conf_cpus);
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sysib.sysib_322.vm[0].reserved_cpus = cpu_to_be16(reserved_cpus);
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sysib.sysib_322.vm[0].caf = cpu_to_be32(1000);
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/* Linux kernel uses this to distinguish us from z/VM */
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ebcdic_put(sysib.sysib_322.vm[0].cpi, "KVM/Linux ", 16);
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sysib.sysib_322.vm[0].ext_name_encoding = 2; /* UTF-8 */
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/* If our VM has a name, use the real name */
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if (qemu_name) {
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memset(sysib.sysib_322.vm[0].name, 0x40,
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sizeof(sysib.sysib_322.vm[0].name));
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ebcdic_put(sysib.sysib_322.vm[0].name, qemu_name,
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MIN(sizeof(sysib.sysib_322.vm[0].name),
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strlen(qemu_name)));
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strncpy((char *)sysib.sysib_322.ext_names[0], qemu_name,
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sizeof(sysib.sysib_322.ext_names[0]));
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} else {
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ebcdic_put(sysib.sysib_322.vm[0].name, "TCGguest", 8);
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strcpy((char *)sysib.sysib_322.ext_names[0], "TCGguest");
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}
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/* add the uuid */
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memcpy(sysib.sysib_322.vm[0].uuid, &qemu_uuid,
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sizeof(sysib.sysib_322.vm[0].uuid));
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} else {
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cc = 3;
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}
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break;
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}
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if (cc == 0) {
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if (s390_cpu_virt_mem_write(cpu, a0, 0, &sysib, sizeof(sysib))) {
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s390_cpu_virt_mem_handle_exc(cpu, ra);
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}
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}
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return cc;
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}
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uint32_t HELPER(sigp)(CPUS390XState *env, uint64_t order_code, uint32_t r1,
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uint32_t r3)
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{
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int cc;
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/* TODO: needed to inject interrupts - push further down */
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qemu_mutex_lock_iothread();
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cc = handle_sigp(env, order_code & SIGP_ORDER_MASK, r1, r3);
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qemu_mutex_unlock_iothread();
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return cc;
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}
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#endif
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#ifndef CONFIG_USER_ONLY
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void HELPER(xsch)(CPUS390XState *env, uint64_t r1)
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{
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S390CPU *cpu = env_archcpu(env);
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qemu_mutex_lock_iothread();
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ioinst_handle_xsch(cpu, r1, GETPC());
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qemu_mutex_unlock_iothread();
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}
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void HELPER(csch)(CPUS390XState *env, uint64_t r1)
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{
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S390CPU *cpu = env_archcpu(env);
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qemu_mutex_lock_iothread();
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ioinst_handle_csch(cpu, r1, GETPC());
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qemu_mutex_unlock_iothread();
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}
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void HELPER(hsch)(CPUS390XState *env, uint64_t r1)
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{
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S390CPU *cpu = env_archcpu(env);
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qemu_mutex_lock_iothread();
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ioinst_handle_hsch(cpu, r1, GETPC());
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qemu_mutex_unlock_iothread();
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}
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void HELPER(msch)(CPUS390XState *env, uint64_t r1, uint64_t inst)
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{
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S390CPU *cpu = env_archcpu(env);
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qemu_mutex_lock_iothread();
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ioinst_handle_msch(cpu, r1, inst >> 16, GETPC());
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qemu_mutex_unlock_iothread();
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}
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void HELPER(rchp)(CPUS390XState *env, uint64_t r1)
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{
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S390CPU *cpu = env_archcpu(env);
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qemu_mutex_lock_iothread();
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ioinst_handle_rchp(cpu, r1, GETPC());
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qemu_mutex_unlock_iothread();
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}
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void HELPER(rsch)(CPUS390XState *env, uint64_t r1)
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{
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S390CPU *cpu = env_archcpu(env);
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qemu_mutex_lock_iothread();
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ioinst_handle_rsch(cpu, r1, GETPC());
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qemu_mutex_unlock_iothread();
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}
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void HELPER(sal)(CPUS390XState *env, uint64_t r1)
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{
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S390CPU *cpu = env_archcpu(env);
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qemu_mutex_lock_iothread();
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ioinst_handle_sal(cpu, r1, GETPC());
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qemu_mutex_unlock_iothread();
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}
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void HELPER(schm)(CPUS390XState *env, uint64_t r1, uint64_t r2, uint64_t inst)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
|
|
qemu_mutex_lock_iothread();
|
|
ioinst_handle_schm(cpu, r1, r2, inst >> 16, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
|
|
void HELPER(ssch)(CPUS390XState *env, uint64_t r1, uint64_t inst)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
qemu_mutex_lock_iothread();
|
|
ioinst_handle_ssch(cpu, r1, inst >> 16, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
|
|
void HELPER(stcrw)(CPUS390XState *env, uint64_t inst)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
|
|
qemu_mutex_lock_iothread();
|
|
ioinst_handle_stcrw(cpu, inst >> 16, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
|
|
void HELPER(stsch)(CPUS390XState *env, uint64_t r1, uint64_t inst)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
qemu_mutex_lock_iothread();
|
|
ioinst_handle_stsch(cpu, r1, inst >> 16, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
|
|
uint32_t HELPER(tpi)(CPUS390XState *env, uint64_t addr)
|
|
{
|
|
const uintptr_t ra = GETPC();
|
|
S390CPU *cpu = env_archcpu(env);
|
|
QEMUS390FLICState *flic = s390_get_qemu_flic(s390_get_flic());
|
|
QEMUS390FlicIO *io = NULL;
|
|
LowCore *lowcore;
|
|
|
|
if (addr & 0x3) {
|
|
tcg_s390_program_interrupt(env, PGM_SPECIFICATION, ra);
|
|
}
|
|
|
|
qemu_mutex_lock_iothread();
|
|
io = qemu_s390_flic_dequeue_io(flic, env->cregs[6]);
|
|
if (!io) {
|
|
qemu_mutex_unlock_iothread();
|
|
return 0;
|
|
}
|
|
|
|
if (addr) {
|
|
struct {
|
|
uint16_t id;
|
|
uint16_t nr;
|
|
uint32_t parm;
|
|
} intc = {
|
|
.id = cpu_to_be16(io->id),
|
|
.nr = cpu_to_be16(io->nr),
|
|
.parm = cpu_to_be32(io->parm),
|
|
};
|
|
|
|
if (s390_cpu_virt_mem_write(cpu, addr, 0, &intc, sizeof(intc))) {
|
|
/* writing failed, reinject and properly clean up */
|
|
s390_io_interrupt(io->id, io->nr, io->parm, io->word);
|
|
qemu_mutex_unlock_iothread();
|
|
g_free(io);
|
|
s390_cpu_virt_mem_handle_exc(cpu, ra);
|
|
return 0;
|
|
}
|
|
} else {
|
|
/* no protection applies */
|
|
lowcore = cpu_map_lowcore(env);
|
|
lowcore->subchannel_id = cpu_to_be16(io->id);
|
|
lowcore->subchannel_nr = cpu_to_be16(io->nr);
|
|
lowcore->io_int_parm = cpu_to_be32(io->parm);
|
|
lowcore->io_int_word = cpu_to_be32(io->word);
|
|
cpu_unmap_lowcore(lowcore);
|
|
}
|
|
|
|
g_free(io);
|
|
qemu_mutex_unlock_iothread();
|
|
return 1;
|
|
}
|
|
|
|
void HELPER(tsch)(CPUS390XState *env, uint64_t r1, uint64_t inst)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
qemu_mutex_lock_iothread();
|
|
ioinst_handle_tsch(cpu, r1, inst >> 16, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
|
|
void HELPER(chsc)(CPUS390XState *env, uint64_t inst)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
qemu_mutex_lock_iothread();
|
|
ioinst_handle_chsc(cpu, inst >> 16, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
#endif
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
void HELPER(per_check_exception)(CPUS390XState *env)
|
|
{
|
|
if (env->per_perc_atmid) {
|
|
tcg_s390_program_interrupt(env, PGM_PER, GETPC());
|
|
}
|
|
}
|
|
|
|
/* Check if an address is within the PER starting address and the PER
|
|
ending address. The address range might loop. */
|
|
static inline bool get_per_in_range(CPUS390XState *env, uint64_t addr)
|
|
{
|
|
if (env->cregs[10] <= env->cregs[11]) {
|
|
return env->cregs[10] <= addr && addr <= env->cregs[11];
|
|
} else {
|
|
return env->cregs[10] <= addr || addr <= env->cregs[11];
|
|
}
|
|
}
|
|
|
|
void HELPER(per_branch)(CPUS390XState *env, uint64_t from, uint64_t to)
|
|
{
|
|
if ((env->cregs[9] & PER_CR9_EVENT_BRANCH)) {
|
|
if (!(env->cregs[9] & PER_CR9_CONTROL_BRANCH_ADDRESS)
|
|
|| get_per_in_range(env, to)) {
|
|
env->per_address = from;
|
|
env->per_perc_atmid = PER_CODE_EVENT_BRANCH | get_per_atmid(env);
|
|
}
|
|
}
|
|
}
|
|
|
|
void HELPER(per_ifetch)(CPUS390XState *env, uint64_t addr)
|
|
{
|
|
if ((env->cregs[9] & PER_CR9_EVENT_IFETCH) && get_per_in_range(env, addr)) {
|
|
env->per_address = addr;
|
|
env->per_perc_atmid = PER_CODE_EVENT_IFETCH | get_per_atmid(env);
|
|
|
|
/* If the instruction has to be nullified, trigger the
|
|
exception immediately. */
|
|
if (env->cregs[9] & PER_CR9_EVENT_NULLIFICATION) {
|
|
CPUState *cs = env_cpu(env);
|
|
|
|
env->per_perc_atmid |= PER_CODE_EVENT_NULLIFICATION;
|
|
env->int_pgm_code = PGM_PER;
|
|
env->int_pgm_ilen = get_ilen(cpu_ldub_code(env, addr));
|
|
|
|
cs->exception_index = EXCP_PGM;
|
|
cpu_loop_exit(cs);
|
|
}
|
|
}
|
|
}
|
|
|
|
void HELPER(per_store_real)(CPUS390XState *env)
|
|
{
|
|
if ((env->cregs[9] & PER_CR9_EVENT_STORE) &&
|
|
(env->cregs[9] & PER_CR9_EVENT_STORE_REAL)) {
|
|
/* PSW is saved just before calling the helper. */
|
|
env->per_address = env->psw.addr;
|
|
env->per_perc_atmid = PER_CODE_EVENT_STORE_REAL | get_per_atmid(env);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static uint8_t stfl_bytes[2048];
|
|
static unsigned int used_stfl_bytes;
|
|
|
|
static void prepare_stfl(void)
|
|
{
|
|
static bool initialized;
|
|
int i;
|
|
|
|
/* racy, but we don't care, the same values are always written */
|
|
if (initialized) {
|
|
return;
|
|
}
|
|
|
|
s390_get_feat_block(S390_FEAT_TYPE_STFL, stfl_bytes);
|
|
for (i = 0; i < sizeof(stfl_bytes); i++) {
|
|
if (stfl_bytes[i]) {
|
|
used_stfl_bytes = i + 1;
|
|
}
|
|
}
|
|
initialized = true;
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
void HELPER(stfl)(CPUS390XState *env)
|
|
{
|
|
LowCore *lowcore;
|
|
|
|
lowcore = cpu_map_lowcore(env);
|
|
prepare_stfl();
|
|
memcpy(&lowcore->stfl_fac_list, stfl_bytes, sizeof(lowcore->stfl_fac_list));
|
|
cpu_unmap_lowcore(lowcore);
|
|
}
|
|
#endif
|
|
|
|
uint32_t HELPER(stfle)(CPUS390XState *env, uint64_t addr)
|
|
{
|
|
const uintptr_t ra = GETPC();
|
|
const int count_bytes = ((env->regs[0] & 0xff) + 1) * 8;
|
|
int max_bytes;
|
|
int i;
|
|
|
|
if (addr & 0x7) {
|
|
tcg_s390_program_interrupt(env, PGM_SPECIFICATION, ra);
|
|
}
|
|
|
|
prepare_stfl();
|
|
max_bytes = ROUND_UP(used_stfl_bytes, 8);
|
|
|
|
/*
|
|
* The PoP says that doublewords beyond the highest-numbered facility
|
|
* bit may or may not be stored. However, existing hardware appears to
|
|
* not store the words, and existing software depend on that.
|
|
*/
|
|
for (i = 0; i < MIN(count_bytes, max_bytes); ++i) {
|
|
cpu_stb_data_ra(env, addr + i, stfl_bytes[i], ra);
|
|
}
|
|
|
|
env->regs[0] = deposit64(env->regs[0], 0, 8, (max_bytes / 8) - 1);
|
|
return count_bytes >= max_bytes ? 0 : 3;
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
/*
|
|
* Note: we ignore any return code of the functions called for the pci
|
|
* instructions, as the only time they return !0 is when the stub is
|
|
* called, and in that case we didn't even offer the zpci facility.
|
|
* The only exception is SIC, where program checks need to be handled
|
|
* by the caller.
|
|
*/
|
|
void HELPER(clp)(CPUS390XState *env, uint32_t r2)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
|
|
qemu_mutex_lock_iothread();
|
|
clp_service_call(cpu, r2, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
|
|
void HELPER(pcilg)(CPUS390XState *env, uint32_t r1, uint32_t r2)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
|
|
qemu_mutex_lock_iothread();
|
|
pcilg_service_call(cpu, r1, r2, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
|
|
void HELPER(pcistg)(CPUS390XState *env, uint32_t r1, uint32_t r2)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
|
|
qemu_mutex_lock_iothread();
|
|
pcistg_service_call(cpu, r1, r2, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
|
|
void HELPER(stpcifc)(CPUS390XState *env, uint32_t r1, uint64_t fiba,
|
|
uint32_t ar)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
|
|
qemu_mutex_lock_iothread();
|
|
stpcifc_service_call(cpu, r1, fiba, ar, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
|
|
void HELPER(sic)(CPUS390XState *env, uint64_t r1, uint64_t r3)
|
|
{
|
|
int r;
|
|
|
|
qemu_mutex_lock_iothread();
|
|
r = css_do_sic(env, (r3 >> 27) & 0x7, r1 & 0xffff);
|
|
qemu_mutex_unlock_iothread();
|
|
/* css_do_sic() may actually return a PGM_xxx value to inject */
|
|
if (r) {
|
|
tcg_s390_program_interrupt(env, -r, GETPC());
|
|
}
|
|
}
|
|
|
|
void HELPER(rpcit)(CPUS390XState *env, uint32_t r1, uint32_t r2)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
|
|
qemu_mutex_lock_iothread();
|
|
rpcit_service_call(cpu, r1, r2, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
|
|
void HELPER(pcistb)(CPUS390XState *env, uint32_t r1, uint32_t r3,
|
|
uint64_t gaddr, uint32_t ar)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
|
|
qemu_mutex_lock_iothread();
|
|
pcistb_service_call(cpu, r1, r3, gaddr, ar, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
|
|
void HELPER(mpcifc)(CPUS390XState *env, uint32_t r1, uint64_t fiba,
|
|
uint32_t ar)
|
|
{
|
|
S390CPU *cpu = env_archcpu(env);
|
|
|
|
qemu_mutex_lock_iothread();
|
|
mpcifc_service_call(cpu, r1, fiba, ar, GETPC());
|
|
qemu_mutex_unlock_iothread();
|
|
}
|
|
#endif
|