CPUS390XState *env = &cpu->env;
env->pending_int |= INTERRUPT_TOD;
- cpu_interrupt(env, CPU_INTERRUPT_HARD);
+ cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD);
}
void s390x_cpu_timer(void *opaque)
CPUS390XState *env = &cpu->env;
env->pending_int |= INTERRUPT_CPUTIMER;
- cpu_interrupt(env, CPU_INTERRUPT_HARD);
+ cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD);
}
#endif
S390CPU *cpu_s390x_init(const char *cpu_model)
{
S390CPU *cpu;
- CPUS390XState *env;
- static int inited;
cpu = S390_CPU(object_new(TYPE_S390_CPU));
- env = &cpu->env;
- if (tcg_enabled() && !inited) {
- inited = 1;
- s390x_translate_init();
- }
+ object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
- env->cpu_model_str = cpu_model;
- qemu_init_vcpu(env);
return cpu;
}
#if defined(CONFIG_USER_ONLY)
-void do_interrupt(CPUS390XState *env)
+void s390_cpu_do_interrupt(CPUState *cs)
{
- env->exception_index = -1;
+ cs->exception_index = -1;
}
-int cpu_s390x_handle_mmu_fault(CPUS390XState *env, target_ulong address,
- int rw, int mmu_idx)
+int s390_cpu_handle_mmu_fault(CPUState *cs, vaddr address,
+ int rw, int mmu_idx)
{
- /* fprintf(stderr, "%s: address 0x%lx rw %d mmu_idx %d\n",
- __func__, address, rw, mmu_idx); */
- env->exception_index = EXCP_ADDR;
- /* FIXME: find out how this works on a real machine */
- env->__excp_addr = address;
+ S390CPU *cpu = S390_CPU(cs);
+
+ cs->exception_index = EXCP_PGM;
+ cpu->env.int_pgm_code = PGM_ADDRESSING;
+ /* On real machines this value is dropped into LowMem. Since this
+ is userland, simply put this someplace that cpu_loop can find it. */
+ cpu->env.__excp_addr = address;
return 1;
}
/* Ensure to exit the TB after this call! */
static void trigger_pgm_exception(CPUS390XState *env, uint32_t code,
- uint32_t ilc)
+ uint32_t ilen)
{
- env->exception_index = EXCP_PGM;
+ CPUState *cs = CPU(s390_env_get_cpu(env));
+
+ cs->exception_index = EXCP_PGM;
env->int_pgm_code = code;
- env->int_pgm_ilc = ilc;
+ env->int_pgm_ilen = ilen;
}
static int trans_bits(CPUS390XState *env, uint64_t mode)
{
+ S390CPU *cpu = s390_env_get_cpu(env);
int bits = 0;
switch (mode) {
bits = 3;
break;
default:
- cpu_abort(env, "unknown asc mode\n");
+ cpu_abort(CPU(cpu), "unknown asc mode\n");
break;
}
static void trigger_prot_fault(CPUS390XState *env, target_ulong vaddr,
uint64_t mode)
{
- int ilc = ILC_LATER_INC_2;
+ CPUState *cs = CPU(s390_env_get_cpu(env));
+ int ilen = ILEN_LATER_INC;
int bits = trans_bits(env, mode) | 4;
DPRINTF("%s: vaddr=%016" PRIx64 " bits=%d\n", __func__, vaddr, bits);
- stq_phys(env->psa + offsetof(LowCore, trans_exc_code), vaddr | bits);
- trigger_pgm_exception(env, PGM_PROTECTION, ilc);
+ stq_phys(cs->as,
+ env->psa + offsetof(LowCore, trans_exc_code), vaddr | bits);
+ trigger_pgm_exception(env, PGM_PROTECTION, ilen);
}
static void trigger_page_fault(CPUS390XState *env, target_ulong vaddr,
uint32_t type, uint64_t asc, int rw)
{
- int ilc = ILC_LATER;
+ CPUState *cs = CPU(s390_env_get_cpu(env));
+ int ilen = ILEN_LATER;
int bits = trans_bits(env, asc);
+ /* Code accesses have an undefined ilc. */
if (rw == 2) {
- /* code has is undefined ilc */
- ilc = 2;
+ ilen = 2;
}
DPRINTF("%s: vaddr=%016" PRIx64 " bits=%d\n", __func__, vaddr, bits);
- stq_phys(env->psa + offsetof(LowCore, trans_exc_code), vaddr | bits);
- trigger_pgm_exception(env, type, ilc);
+ stq_phys(cs->as,
+ env->psa + offsetof(LowCore, trans_exc_code), vaddr | bits);
+ trigger_pgm_exception(env, type, ilen);
+}
+
+/**
+ * Translate real address to absolute (= physical)
+ * address by taking care of the prefix mapping.
+ */
+static target_ulong mmu_real2abs(CPUS390XState *env, target_ulong raddr)
+{
+ if (raddr < 0x2000) {
+ return raddr + env->psa; /* Map the lowcore. */
+ } else if (raddr >= env->psa && raddr < env->psa + 0x2000) {
+ return raddr - env->psa; /* Map the 0 page. */
+ }
+ return raddr;
+}
+
+/* Decode page table entry (normal 4KB page) */
+static int mmu_translate_pte(CPUS390XState *env, target_ulong vaddr,
+ uint64_t asc, uint64_t asce,
+ target_ulong *raddr, int *flags, int rw)
+{
+ if (asce & _PAGE_INVALID) {
+ DPRINTF("%s: PTE=0x%" PRIx64 " invalid\n", __func__, asce);
+ trigger_page_fault(env, vaddr, PGM_PAGE_TRANS, asc, rw);
+ return -1;
+ }
+
+ if (asce & _PAGE_RO) {
+ *flags &= ~PAGE_WRITE;
+ }
+
+ *raddr = asce & _ASCE_ORIGIN;
+
+ PTE_DPRINTF("%s: PTE=0x%" PRIx64 "\n", __func__, asce);
+
+ return 0;
+}
+
+/* Decode EDAT1 segment frame absolute address (1MB page) */
+static int mmu_translate_sfaa(CPUS390XState *env, target_ulong vaddr,
+ uint64_t asc, uint64_t asce, target_ulong *raddr,
+ int *flags, int rw)
+{
+ if (asce & _SEGMENT_ENTRY_INV) {
+ DPRINTF("%s: SEG=0x%" PRIx64 " invalid\n", __func__, asce);
+ trigger_page_fault(env, vaddr, PGM_SEGMENT_TRANS, asc, rw);
+ return -1;
+ }
+
+ if (asce & _SEGMENT_ENTRY_RO) {
+ *flags &= ~PAGE_WRITE;
+ }
+
+ *raddr = (asce & 0xfffffffffff00000ULL) | (vaddr & 0xfffff);
+
+ PTE_DPRINTF("%s: SEG=0x%" PRIx64 "\n", __func__, asce);
+
+ return 0;
}
static int mmu_translate_asce(CPUS390XState *env, target_ulong vaddr,
uint64_t asc, uint64_t asce, int level,
target_ulong *raddr, int *flags, int rw)
{
+ CPUState *cs = CPU(s390_env_get_cpu(env));
uint64_t offs = 0;
uint64_t origin;
uint64_t new_asce;
/* XXX region protection flags */
/* *flags &= ~PAGE_WRITE */
- new_asce = ldq_phys(origin + offs);
+ new_asce = ldq_phys(cs->as, origin + offs);
PTE_DPRINTF("%s: 0x%" PRIx64 " + 0x%" PRIx64 " => 0x%016" PRIx64 "\n",
__func__, origin, offs, new_asce);
- if (level != _ASCE_TYPE_SEGMENT) {
+ if (level == _ASCE_TYPE_SEGMENT) {
+ /* 4KB page */
+ return mmu_translate_pte(env, vaddr, asc, new_asce, raddr, flags, rw);
+ } else if (level - 4 == _ASCE_TYPE_SEGMENT &&
+ (new_asce & _SEGMENT_ENTRY_FC) && (env->cregs[0] & CR0_EDAT)) {
+ /* 1MB page */
+ return mmu_translate_sfaa(env, vaddr, asc, new_asce, raddr, flags, rw);
+ } else {
/* yet another region */
return mmu_translate_asce(env, vaddr, asc, new_asce, level - 4, raddr,
flags, rw);
}
-
- /* PTE */
- if (new_asce & _PAGE_INVALID) {
- DPRINTF("%s: PTE=0x%" PRIx64 " invalid\n", __func__, new_asce);
- trigger_page_fault(env, vaddr, PGM_PAGE_TRANS, asc, rw);
- return -1;
- }
-
- if (new_asce & _PAGE_RO) {
- *flags &= ~PAGE_WRITE;
- }
-
- *raddr = new_asce & _ASCE_ORIGIN;
-
- PTE_DPRINTF("%s: PTE=0x%" PRIx64 "\n", __func__, new_asce);
-
- return 0;
}
static int mmu_translate_asc(CPUS390XState *env, target_ulong vaddr,
out:
/* Convert real address -> absolute address */
- if (*raddr < 0x2000) {
- *raddr = *raddr + env->psa;
- }
+ *raddr = mmu_real2abs(env, *raddr);
if (*raddr <= ram_size) {
sk = &env->storage_keys[*raddr / TARGET_PAGE_SIZE];
return r;
}
-int cpu_s390x_handle_mmu_fault(CPUS390XState *env, target_ulong orig_vaddr,
- int rw, int mmu_idx)
+int s390_cpu_handle_mmu_fault(CPUState *cs, vaddr orig_vaddr,
+ int rw, int mmu_idx)
{
+ S390CPU *cpu = S390_CPU(cs);
+ CPUS390XState *env = &cpu->env;
uint64_t asc = env->psw.mask & PSW_MASK_ASC;
target_ulong vaddr, raddr;
int prot;
- DPRINTF("%s: address 0x%" PRIx64 " rw %d mmu_idx %d\n",
- __func__, _vaddr, rw, mmu_idx);
+ DPRINTF("%s: address 0x%" VADDR_PRIx " rw %d mmu_idx %d\n",
+ __func__, orig_vaddr, rw, mmu_idx);
orig_vaddr &= TARGET_PAGE_MASK;
vaddr = orig_vaddr;
/* check out of RAM access */
if (raddr > (ram_size + virtio_size)) {
- DPRINTF("%s: aaddr %" PRIx64 " > ram_size %" PRIx64 "\n", __func__,
- (uint64_t)aaddr, (uint64_t)ram_size);
- trigger_pgm_exception(env, PGM_ADDRESSING, ILC_LATER);
+ DPRINTF("%s: raddr %" PRIx64 " > ram_size %" PRIx64 "\n", __func__,
+ (uint64_t)raddr, (uint64_t)ram_size);
+ trigger_pgm_exception(env, PGM_ADDRESSING, ILEN_LATER);
return 1;
}
DPRINTF("%s: set tlb %" PRIx64 " -> %" PRIx64 " (%x)\n", __func__,
(uint64_t)vaddr, (uint64_t)raddr, prot);
- tlb_set_page(env, orig_vaddr, raddr, prot,
+ tlb_set_page(cs, orig_vaddr, raddr, prot,
mmu_idx, TARGET_PAGE_SIZE);
return 0;
}
-hwaddr cpu_get_phys_page_debug(CPUS390XState *env,
- target_ulong vaddr)
+hwaddr s390_cpu_get_phys_page_debug(CPUState *cs, vaddr vaddr)
{
+ S390CPU *cpu = S390_CPU(cs);
+ CPUS390XState *env = &cpu->env;
target_ulong raddr;
int prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
- int old_exc = env->exception_index;
+ int old_exc = cs->exception_index;
uint64_t asc = env->psw.mask & PSW_MASK_ASC;
/* 31-Bit mode */
}
mmu_translate(env, vaddr, 2, asc, &raddr, &prot);
- env->exception_index = old_exc;
+ cs->exception_index = old_exc;
return raddr;
}
+hwaddr s390_cpu_get_phys_addr_debug(CPUState *cs, vaddr vaddr)
+{
+ hwaddr phys_addr;
+ target_ulong page;
+
+ page = vaddr & TARGET_PAGE_MASK;
+ phys_addr = cpu_get_phys_page_debug(cs, page);
+ phys_addr += (vaddr & ~TARGET_PAGE_MASK);
+
+ return phys_addr;
+}
+
void load_psw(CPUS390XState *env, uint64_t mask, uint64_t addr)
{
if (mask & PSW_MASK_WAIT) {
+ S390CPU *cpu = s390_env_get_cpu(env);
+ CPUState *cs = CPU(cpu);
if (!(mask & (PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK))) {
- if (s390_del_running_cpu(env) == 0) {
+ if (s390_del_running_cpu(cpu) == 0) {
#ifndef CONFIG_USER_ONLY
qemu_system_shutdown_request();
#endif
}
}
- env->halted = 1;
- env->exception_index = EXCP_HLT;
+ cs->halted = 1;
+ cs->exception_index = EXCP_HLT;
}
env->psw.addr = addr;
env->psw.mask = mask;
- env->cc_op = (mask >> 13) & 3;
+ env->cc_op = (mask >> 44) & 3;
}
static uint64_t get_psw_mask(CPUS390XState *env)
{
- uint64_t r = env->psw.mask;
+ uint64_t r;
env->cc_op = calc_cc(env, env->cc_op, env->cc_src, env->cc_dst, env->cc_vr);
- r &= ~(3ULL << 13);
+ r = env->psw.mask;
+ r &= ~PSW_MASK_CC;
assert(!(env->cc_op & ~3));
- r |= env->cc_op << 13;
+ r |= (uint64_t)env->cc_op << 44;
return r;
}
+static LowCore *cpu_map_lowcore(CPUS390XState *env)
+{
+ S390CPU *cpu = s390_env_get_cpu(env);
+ LowCore *lowcore;
+ hwaddr len = sizeof(LowCore);
+
+ lowcore = cpu_physical_memory_map(env->psa, &len, 1);
+
+ if (len < sizeof(LowCore)) {
+ cpu_abort(CPU(cpu), "Could not map lowcore\n");
+ }
+
+ return lowcore;
+}
+
+static void cpu_unmap_lowcore(LowCore *lowcore)
+{
+ cpu_physical_memory_unmap(lowcore, sizeof(LowCore), 1, sizeof(LowCore));
+}
+
+void *s390_cpu_physical_memory_map(CPUS390XState *env, hwaddr addr, hwaddr *len,
+ int is_write)
+{
+ hwaddr start = addr;
+
+ /* Mind the prefix area. */
+ if (addr < 8192) {
+ /* Map the lowcore. */
+ start += env->psa;
+ *len = MIN(*len, 8192 - addr);
+ } else if ((addr >= env->psa) && (addr < env->psa + 8192)) {
+ /* Map the 0 page. */
+ start -= env->psa;
+ *len = MIN(*len, 8192 - start);
+ }
+
+ return cpu_physical_memory_map(start, len, is_write);
+}
+
+void s390_cpu_physical_memory_unmap(CPUS390XState *env, void *addr, hwaddr len,
+ int is_write)
+{
+ cpu_physical_memory_unmap(addr, len, is_write, len);
+}
+
static void do_svc_interrupt(CPUS390XState *env)
{
uint64_t mask, addr;
LowCore *lowcore;
- hwaddr len = TARGET_PAGE_SIZE;
- lowcore = cpu_physical_memory_map(env->psa, &len, 1);
+ lowcore = cpu_map_lowcore(env);
lowcore->svc_code = cpu_to_be16(env->int_svc_code);
- lowcore->svc_ilc = cpu_to_be16(env->int_svc_ilc);
+ 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_ilc));
+ 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_physical_memory_unmap(lowcore, len, 1, len);
+ cpu_unmap_lowcore(lowcore);
load_psw(env, mask, addr);
}
{
uint64_t mask, addr;
LowCore *lowcore;
- hwaddr len = TARGET_PAGE_SIZE;
- int ilc = env->int_pgm_ilc;
+ int ilen = env->int_pgm_ilen;
- switch (ilc) {
- case ILC_LATER:
- ilc = get_ilc(cpu_ldub_code(env, env->psw.addr));
- break;
- case ILC_LATER_INC:
- ilc = get_ilc(cpu_ldub_code(env, env->psw.addr));
- env->psw.addr += ilc * 2;
+ switch (ilen) {
+ case ILEN_LATER:
+ ilen = get_ilen(cpu_ldub_code(env, env->psw.addr));
break;
- case ILC_LATER_INC_2:
- ilc = get_ilc(cpu_ldub_code(env, env->psw.addr)) * 2;
- env->psw.addr += ilc;
+ 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 ilc=%d\n",
- __func__, env->int_pgm_code, ilc);
+ qemu_log_mask(CPU_LOG_INT, "%s: code=0x%x ilen=%d\n",
+ __func__, env->int_pgm_code, ilen);
- lowcore = cpu_physical_memory_map(env->psa, &len, 1);
+ lowcore = cpu_map_lowcore(env);
- lowcore->pgm_ilc = cpu_to_be16(ilc);
+ 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_physical_memory_unmap(lowcore, len, 1, len);
+ cpu_unmap_lowcore(lowcore);
DPRINTF("%s: %x %x %" PRIx64 " %" PRIx64 "\n", __func__,
- env->int_pgm_code, ilc, env->psw.mask,
+ env->int_pgm_code, ilen, env->psw.mask,
env->psw.addr);
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;
- hwaddr len = TARGET_PAGE_SIZE;
ExtQueue *q;
if (!(env->psw.mask & PSW_MASK_EXT)) {
- cpu_abort(env, "Ext int w/o ext mask\n");
+ cpu_abort(CPU(cpu), "Ext int w/o ext mask\n");
}
if (env->ext_index < 0 || env->ext_index > MAX_EXT_QUEUE) {
- cpu_abort(env, "Ext queue overrun: %d\n", env->ext_index);
+ cpu_abort(CPU(cpu), "Ext queue overrun: %d\n", env->ext_index);
}
q = &env->ext_queue[env->ext_index];
- lowcore = cpu_physical_memory_map(env->psa, &len, 1);
+ lowcore = cpu_map_lowcore(env);
lowcore->ext_int_code = cpu_to_be16(q->code);
lowcore->ext_params = cpu_to_be32(q->param);
mask = be64_to_cpu(lowcore->external_new_psw.mask);
addr = be64_to_cpu(lowcore->external_new_psw.addr);
- cpu_physical_memory_unmap(lowcore, len, 1, len);
+ cpu_unmap_lowcore(lowcore);
env->ext_index--;
if (env->ext_index == -1) {
load_psw(env, mask, addr);
}
-void do_interrupt(CPUS390XState *env)
+static void do_io_interrupt(CPUS390XState *env)
{
- qemu_log_mask(CPU_LOG_INT, "%s: %d at pc=%" PRIx64 "\n",
- __func__, env->exception_index, env->psw.addr);
+ 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;
+ }
+
+}
+
+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(env->fregs[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;
+ }
- s390_add_running_cpu(env);
+ DPRINTF("%s: %" PRIx64 " %" PRIx64 "\n", __func__,
+ env->psw.mask, env->psw.addr);
+
+ load_psw(env, mask, addr);
+}
+
+void s390_cpu_do_interrupt(CPUState *cs)
+{
+ S390CPU *cpu = S390_CPU(cs);
+ CPUS390XState *env = &cpu->env;
+
+ qemu_log_mask(CPU_LOG_INT, "%s: %d at pc=%" PRIx64 "\n",
+ __func__, cs->exception_index, env->psw.addr);
+
+ s390_add_running_cpu(cpu);
+ /* handle machine checks */
+ if ((env->psw.mask & PSW_MASK_MCHECK) &&
+ (cs->exception_index == -1)) {
+ if (env->pending_int & INTERRUPT_MCHK) {
+ cs->exception_index = EXCP_MCHK;
+ }
+ }
/* handle external interrupts */
if ((env->psw.mask & PSW_MASK_EXT) &&
- env->exception_index == -1) {
+ cs->exception_index == -1) {
if (env->pending_int & INTERRUPT_EXT) {
/* code is already in env */
- env->exception_index = EXCP_EXT;
+ cs->exception_index = EXCP_EXT;
} else if (env->pending_int & INTERRUPT_TOD) {
- cpu_inject_ext(env, 0x1004, 0, 0);
- env->exception_index = EXCP_EXT;
+ cpu_inject_ext(cpu, 0x1004, 0, 0);
+ cs->exception_index = EXCP_EXT;
env->pending_int &= ~INTERRUPT_EXT;
env->pending_int &= ~INTERRUPT_TOD;
} else if (env->pending_int & INTERRUPT_CPUTIMER) {
- cpu_inject_ext(env, 0x1005, 0, 0);
- env->exception_index = EXCP_EXT;
+ cpu_inject_ext(cpu, 0x1005, 0, 0);
+ cs->exception_index = EXCP_EXT;
env->pending_int &= ~INTERRUPT_EXT;
env->pending_int &= ~INTERRUPT_TOD;
}
}
+ /* handle I/O interrupts */
+ if ((env->psw.mask & PSW_MASK_IO) &&
+ (cs->exception_index == -1)) {
+ if (env->pending_int & INTERRUPT_IO) {
+ cs->exception_index = EXCP_IO;
+ }
+ }
- switch (env->exception_index) {
+ switch (cs->exception_index) {
case EXCP_PGM:
do_program_interrupt(env);
break;
case EXCP_EXT:
do_ext_interrupt(env);
break;
+ case EXCP_IO:
+ do_io_interrupt(env);
+ break;
+ case EXCP_MCHK:
+ do_mchk_interrupt(env);
+ break;
}
- env->exception_index = -1;
+ cs->exception_index = -1;
if (!env->pending_int) {
- env->interrupt_request &= ~CPU_INTERRUPT_HARD;
+ cs->interrupt_request &= ~CPU_INTERRUPT_HARD;
}
}
projects / qemu.git / blobdiff