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);
}
void HELPER(per_check_exception)(CPUS390XState *env)
{
CPUState *cs = CPU(s390_env_get_cpu(env));
if (env->per_perc_atmid) {
env->int_pgm_code = PGM_PER;
env->int_pgm_ilen = get_ilen(cpu_ldub_code(env, env->per_address));
cs->exception_index = EXCP_PGM;
cpu_loop_exit(cs);
}
}
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);
}
/* Raise an exception dynamically from a helper function. */
void QEMU_NORETURN runtime_exception(CPUS390XState *env, int excp,
uintptr_t retaddr)
{
int t;
env->exception_index = EXCP_PGM;
env->int_pgm_code = excp;
/* Use the (ultimate) callers address to find the insn that trapped. */
cpu_restore_state(env, retaddr);
/* Advance past the insn. */
t = cpu_ldub_code(env, env->psw.addr);
env->int_pgm_ilen = t = get_ilen(t);
env->psw.addr += 2 * t;
cpu_loop_exit(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 = CPU(s390_env_get_cpu(env));
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);
}
}
}