static void do_svc_interrupt(CPUS390XState *env)
{
uint64_t mask, addr;
LowCore *lowcore;
lowcore = cpu_map_lowcore(env);
lowcore->svc_code = cpu_to_be16(env->int_svc_code);
lowcore->svc_ilen = cpu_to_be16(env->int_svc_ilen);
lowcore->svc_old_psw.mask = cpu_to_be64(get_psw_mask(env));
lowcore->svc_old_psw.addr = cpu_to_be64(env->psw.addr + env->int_svc_ilen);
mask = be64_to_cpu(lowcore->svc_new_psw.mask);
addr = be64_to_cpu(lowcore->svc_new_psw.addr);
cpu_unmap_lowcore(lowcore);
load_psw(env, mask, addr);
/* When a PER event is pending, the PER exception has to happen
immediately after the SERVICE CALL one. */
if (env->per_perc_atmid) {
env->int_pgm_code = PGM_PER;
env->int_pgm_ilen = env->int_svc_ilen;
do_program_interrupt(env);
}
}
void do_restart_interrupt(CPUS390XState *env)
{
uint64_t mask, addr;
LowCore *lowcore;
lowcore = cpu_map_lowcore(env);
lowcore->restart_old_psw.mask = cpu_to_be64(get_psw_mask(env));
lowcore->restart_old_psw.addr = cpu_to_be64(env->psw.addr);
mask = be64_to_cpu(lowcore->restart_new_psw.mask);
addr = be64_to_cpu(lowcore->restart_new_psw.addr);
cpu_unmap_lowcore(lowcore);
load_psw(env, mask, addr);
}
static void do_program_interrupt(CPUS390XState *env)
{
uint64_t mask, addr;
LowCore *lowcore;
int ilen = env->int_pgm_ilen;
switch (ilen) {
case ILEN_LATER:
ilen = get_ilen(cpu_ldub_code(env, env->psw.addr));
break;
case ILEN_LATER_INC:
ilen = get_ilen(cpu_ldub_code(env, env->psw.addr));
env->psw.addr += ilen;
break;
default:
assert(ilen == 2 || ilen == 4 || ilen == 6);
}
qemu_log_mask(CPU_LOG_INT, "%s: code=0x%x ilen=%d\n",
__func__, env->int_pgm_code, ilen);
lowcore = cpu_map_lowcore(env);
/* Signal PER events with the exception. */
if (env->per_perc_atmid) {
env->int_pgm_code |= PGM_PER;
lowcore->per_address = cpu_to_be64(env->per_address);
lowcore->per_perc_atmid = cpu_to_be16(env->per_perc_atmid);
env->per_perc_atmid = 0;
}
lowcore->pgm_ilen = cpu_to_be16(ilen);
lowcore->pgm_code = cpu_to_be16(env->int_pgm_code);
lowcore->program_old_psw.mask = cpu_to_be64(get_psw_mask(env));
lowcore->program_old_psw.addr = cpu_to_be64(env->psw.addr);
mask = be64_to_cpu(lowcore->program_new_psw.mask);
addr = be64_to_cpu(lowcore->program_new_psw.addr);
lowcore->per_breaking_event_addr = cpu_to_be64(env->gbea);
cpu_unmap_lowcore(lowcore);
DPRINTF("%s: %x %x %" PRIx64 " %" PRIx64 "\n", __func__,
env->int_pgm_code, ilen, env->psw.mask,
env->psw.addr);
load_psw(env, mask, addr);
}
static void do_svc_interrupt(CPUS390XState *env)
{
uint64_t mask, addr;
LowCore *lowcore;
lowcore = cpu_map_lowcore(env);
lowcore->svc_code = cpu_to_be16(env->int_svc_code);
lowcore->svc_ilen = cpu_to_be16(env->int_svc_ilen);
lowcore->svc_old_psw.mask = cpu_to_be64(get_psw_mask(env));
lowcore->svc_old_psw.addr = cpu_to_be64(env->psw.addr + env->int_svc_ilen);
mask = be64_to_cpu(lowcore->svc_new_psw.mask);
addr = be64_to_cpu(lowcore->svc_new_psw.addr);
cpu_unmap_lowcore(lowcore);
load_psw(env, mask, addr);
}
static void do_ext_interrupt(CPUS390XState *env)
{
S390CPU *cpu = s390_env_get_cpu(env);
uint64_t mask, addr;
LowCore *lowcore;
ExtQueue *q;
if (!(env->psw.mask & PSW_MASK_EXT)) {
cpu_abort(CPU(cpu), "Ext int w/o ext mask\n");
}
if (env->ext_index < 0 || env->ext_index >= MAX_EXT_QUEUE) {
cpu_abort(CPU(cpu), "Ext queue overrun: %d\n", env->ext_index);
}
q = &env->ext_queue[env->ext_index];
lowcore = cpu_map_lowcore(env);
lowcore->ext_int_code = cpu_to_be16(q->code);
lowcore->ext_params = cpu_to_be32(q->param);
lowcore->ext_params2 = cpu_to_be64(q->param64);
lowcore->external_old_psw.mask = cpu_to_be64(get_psw_mask(env));
lowcore->external_old_psw.addr = cpu_to_be64(env->psw.addr);
lowcore->cpu_addr = cpu_to_be16(env->cpu_num | VIRTIO_SUBCODE_64);
mask = be64_to_cpu(lowcore->external_new_psw.mask);
addr = be64_to_cpu(lowcore->external_new_psw.addr);
cpu_unmap_lowcore(lowcore);
env->ext_index--;
if (env->ext_index == -1) {
env->pending_int &= ~INTERRUPT_EXT;
}
DPRINTF("%s: %" PRIx64 " %" PRIx64 "\n", __func__,
env->psw.mask, env->psw.addr);
load_psw(env, mask, addr);
}
static void do_program_interrupt(CPUS390XState *env)
{
uint64_t mask, addr;
LowCore *lowcore;
int ilen = env->int_pgm_ilen;
switch (ilen) {
case ILEN_LATER:
ilen = get_ilen(cpu_ldub_code(env, env->psw.addr));
break;
case ILEN_LATER_INC:
ilen = get_ilen(cpu_ldub_code(env, env->psw.addr));
env->psw.addr += ilen;
break;
default:
assert(ilen == 2 || ilen == 4 || ilen == 6);
}
qemu_log_mask(CPU_LOG_INT, "%s: code=0x%x ilen=%d\n",
__func__, env->int_pgm_code, ilen);
lowcore = cpu_map_lowcore(env);
lowcore->pgm_ilen = cpu_to_be16(ilen);
lowcore->pgm_code = cpu_to_be16(env->int_pgm_code);
lowcore->program_old_psw.mask = cpu_to_be64(get_psw_mask(env));
lowcore->program_old_psw.addr = cpu_to_be64(env->psw.addr);
mask = be64_to_cpu(lowcore->program_new_psw.mask);
addr = be64_to_cpu(lowcore->program_new_psw.addr);
cpu_unmap_lowcore(lowcore);
DPRINTF("%s: %x %x %" PRIx64 " %" PRIx64 "\n", __func__,
env->int_pgm_code, ilen, env->psw.mask,
env->psw.addr);
load_psw(env, mask, addr);
}
void HELPER(load_psw)(CPUS390XState *env, uint64_t mask, uint64_t addr)
{
load_psw(env, mask, addr);
cpu_loop_exit(CPU(s390_env_get_cpu(env)));
}
static void do_mchk_interrupt(CPUS390XState *env)
{
S390CPU *cpu = s390_env_get_cpu(env);
uint64_t mask, addr;
LowCore *lowcore;
MchkQueue *q;
int i;
if (!(env->psw.mask & PSW_MASK_MCHECK)) {
cpu_abort(CPU(cpu), "Machine check w/o mchk mask\n");
}
if (env->mchk_index < 0 || env->mchk_index >= MAX_MCHK_QUEUE) {
cpu_abort(CPU(cpu), "Mchk queue overrun: %d\n", env->mchk_index);
}
q = &env->mchk_queue[env->mchk_index];
if (q->type != 1) {
/* Don't know how to handle this... */
cpu_abort(CPU(cpu), "Unknown machine check type %d\n", q->type);
}
if (!(env->cregs[14] & (1 << 28))) {
/* CRW machine checks disabled */
return;
}
lowcore = cpu_map_lowcore(env);
for (i = 0; i < 16; i++) {
lowcore->floating_pt_save_area[i] = cpu_to_be64(get_freg(env, i)->ll);
lowcore->gpregs_save_area[i] = cpu_to_be64(env->regs[i]);
lowcore->access_regs_save_area[i] = cpu_to_be32(env->aregs[i]);
lowcore->cregs_save_area[i] = cpu_to_be64(env->cregs[i]);
}
lowcore->prefixreg_save_area = cpu_to_be32(env->psa);
lowcore->fpt_creg_save_area = cpu_to_be32(env->fpc);
lowcore->tod_progreg_save_area = cpu_to_be32(env->todpr);
lowcore->cpu_timer_save_area[0] = cpu_to_be32(env->cputm >> 32);
lowcore->cpu_timer_save_area[1] = cpu_to_be32((uint32_t)env->cputm);
lowcore->clock_comp_save_area[0] = cpu_to_be32(env->ckc >> 32);
lowcore->clock_comp_save_area[1] = cpu_to_be32((uint32_t)env->ckc);
lowcore->mcck_interruption_code[0] = cpu_to_be32(0x00400f1d);
lowcore->mcck_interruption_code[1] = cpu_to_be32(0x40330000);
lowcore->mcck_old_psw.mask = cpu_to_be64(get_psw_mask(env));
lowcore->mcck_old_psw.addr = cpu_to_be64(env->psw.addr);
mask = be64_to_cpu(lowcore->mcck_new_psw.mask);
addr = be64_to_cpu(lowcore->mcck_new_psw.addr);
cpu_unmap_lowcore(lowcore);
env->mchk_index--;
if (env->mchk_index == -1) {
env->pending_int &= ~INTERRUPT_MCHK;
}
DPRINTF("%s: %" PRIx64 " %" PRIx64 "\n", __func__,
env->psw.mask, env->psw.addr);
load_psw(env, mask, addr);
}
static void do_io_interrupt(CPUS390XState *env)
{
S390CPU *cpu = s390_env_get_cpu(env);
LowCore *lowcore;
IOIntQueue *q;
uint8_t isc;
int disable = 1;
int found = 0;
if (!(env->psw.mask & PSW_MASK_IO)) {
cpu_abort(CPU(cpu), "I/O int w/o I/O mask\n");
}
for (isc = 0; isc < ARRAY_SIZE(env->io_index); isc++) {
uint64_t isc_bits;
if (env->io_index[isc] < 0) {
continue;
}
if (env->io_index[isc] >= MAX_IO_QUEUE) {
cpu_abort(CPU(cpu), "I/O queue overrun for isc %d: %d\n",
isc, env->io_index[isc]);
}
q = &env->io_queue[env->io_index[isc]][isc];
isc_bits = ISC_TO_ISC_BITS(IO_INT_WORD_ISC(q->word));
if (!(env->cregs[6] & isc_bits)) {
disable = 0;
continue;
}
if (!found) {
uint64_t mask, addr;
found = 1;
lowcore = cpu_map_lowcore(env);
lowcore->subchannel_id = cpu_to_be16(q->id);
lowcore->subchannel_nr = cpu_to_be16(q->nr);
lowcore->io_int_parm = cpu_to_be32(q->parm);
lowcore->io_int_word = cpu_to_be32(q->word);
lowcore->io_old_psw.mask = cpu_to_be64(get_psw_mask(env));
lowcore->io_old_psw.addr = cpu_to_be64(env->psw.addr);
mask = be64_to_cpu(lowcore->io_new_psw.mask);
addr = be64_to_cpu(lowcore->io_new_psw.addr);
cpu_unmap_lowcore(lowcore);
env->io_index[isc]--;
DPRINTF("%s: %" PRIx64 " %" PRIx64 "\n", __func__,
env->psw.mask, env->psw.addr);
load_psw(env, mask, addr);
}
if (env->io_index[isc] >= 0) {
disable = 0;
}
continue;
}
if (disable) {
env->pending_int &= ~INTERRUPT_IO;
}
}
