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Diffstat (limited to 'qemu/target-s390x/cpu.c')
-rw-r--r--qemu/target-s390x/cpu.c481
1 files changed, 0 insertions, 481 deletions
diff --git a/qemu/target-s390x/cpu.c b/qemu/target-s390x/cpu.c
deleted file mode 100644
index 4bfff341d..000000000
--- a/qemu/target-s390x/cpu.c
+++ /dev/null
@@ -1,481 +0,0 @@
-/*
- * QEMU S/390 CPU
- *
- * Copyright (c) 2009 Ulrich Hecht
- * Copyright (c) 2011 Alexander Graf
- * Copyright (c) 2012 SUSE LINUX Products GmbH
- * Copyright (c) 2012 IBM Corp.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see
- * <http://www.gnu.org/licenses/lgpl-2.1.html>
- * Contributions after 2012-12-11 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "cpu.h"
-#include "qemu-common.h"
-#include "qemu/cutils.h"
-#include "qemu/timer.h"
-#include "qemu/error-report.h"
-#include "hw/hw.h"
-#include "trace.h"
-#include "qapi/visitor.h"
-#ifndef CONFIG_USER_ONLY
-#include "sysemu/arch_init.h"
-#include "sysemu/sysemu.h"
-#include "hw/s390x/sclp.h"
-#endif
-
-#define CR0_RESET 0xE0UL
-#define CR14_RESET 0xC2000000UL;
-
-/* generate CPU information for cpu -? */
-void s390_cpu_list(FILE *f, fprintf_function cpu_fprintf)
-{
-#ifdef CONFIG_KVM
- (*cpu_fprintf)(f, "s390 %16s\n", "host");
-#endif
-}
-
-#ifndef CONFIG_USER_ONLY
-CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp)
-{
- CpuDefinitionInfoList *entry;
- CpuDefinitionInfo *info;
-
- info = g_malloc0(sizeof(*info));
- info->name = g_strdup("host");
-
- entry = g_malloc0(sizeof(*entry));
- entry->value = info;
-
- return entry;
-}
-#endif
-
-static void s390_cpu_set_pc(CPUState *cs, vaddr value)
-{
- S390CPU *cpu = S390_CPU(cs);
-
- cpu->env.psw.addr = value;
-}
-
-static bool s390_cpu_has_work(CPUState *cs)
-{
- S390CPU *cpu = S390_CPU(cs);
- CPUS390XState *env = &cpu->env;
-
- return (cs->interrupt_request & CPU_INTERRUPT_HARD) &&
- (env->psw.mask & PSW_MASK_EXT);
-}
-
-#if !defined(CONFIG_USER_ONLY)
-/* S390CPUClass::load_normal() */
-static void s390_cpu_load_normal(CPUState *s)
-{
- S390CPU *cpu = S390_CPU(s);
- cpu->env.psw.addr = ldl_phys(s->as, 4) & PSW_MASK_ESA_ADDR;
- cpu->env.psw.mask = PSW_MASK_32 | PSW_MASK_64;
- s390_cpu_set_state(CPU_STATE_OPERATING, cpu);
-}
-#endif
-
-/* S390CPUClass::cpu_reset() */
-static void s390_cpu_reset(CPUState *s)
-{
- S390CPU *cpu = S390_CPU(s);
- S390CPUClass *scc = S390_CPU_GET_CLASS(cpu);
- CPUS390XState *env = &cpu->env;
-
- env->pfault_token = -1UL;
- scc->parent_reset(s);
- cpu->env.sigp_order = 0;
- s390_cpu_set_state(CPU_STATE_STOPPED, cpu);
- tlb_flush(s, 1);
-}
-
-/* S390CPUClass::initial_reset() */
-static void s390_cpu_initial_reset(CPUState *s)
-{
- S390CPU *cpu = S390_CPU(s);
- CPUS390XState *env = &cpu->env;
- int i;
-
- s390_cpu_reset(s);
- /* initial reset does not touch regs,fregs and aregs */
- memset(&env->fpc, 0, offsetof(CPUS390XState, cpu_num) -
- offsetof(CPUS390XState, fpc));
-
- /* architectured initial values for CR 0 and 14 */
- env->cregs[0] = CR0_RESET;
- env->cregs[14] = CR14_RESET;
-
- /* architectured initial value for Breaking-Event-Address register */
- env->gbea = 1;
-
- env->pfault_token = -1UL;
- env->ext_index = -1;
- for (i = 0; i < ARRAY_SIZE(env->io_index); i++) {
- env->io_index[i] = -1;
- }
-
- /* tininess for underflow is detected before rounding */
- set_float_detect_tininess(float_tininess_before_rounding,
- &env->fpu_status);
-
- /* Reset state inside the kernel that we cannot access yet from QEMU. */
- if (kvm_enabled()) {
- kvm_s390_reset_vcpu(cpu);
- }
- tlb_flush(s, 1);
-}
-
-/* CPUClass:reset() */
-static void s390_cpu_full_reset(CPUState *s)
-{
- S390CPU *cpu = S390_CPU(s);
- S390CPUClass *scc = S390_CPU_GET_CLASS(cpu);
- CPUS390XState *env = &cpu->env;
- int i;
-
- scc->parent_reset(s);
- cpu->env.sigp_order = 0;
- s390_cpu_set_state(CPU_STATE_STOPPED, cpu);
-
- memset(env, 0, offsetof(CPUS390XState, cpu_num));
-
- /* architectured initial values for CR 0 and 14 */
- env->cregs[0] = CR0_RESET;
- env->cregs[14] = CR14_RESET;
-
- /* architectured initial value for Breaking-Event-Address register */
- env->gbea = 1;
-
- env->pfault_token = -1UL;
- env->ext_index = -1;
- for (i = 0; i < ARRAY_SIZE(env->io_index); i++) {
- env->io_index[i] = -1;
- }
-
- /* tininess for underflow is detected before rounding */
- set_float_detect_tininess(float_tininess_before_rounding,
- &env->fpu_status);
-
- /* Reset state inside the kernel that we cannot access yet from QEMU. */
- if (kvm_enabled()) {
- kvm_s390_reset_vcpu(cpu);
- }
- tlb_flush(s, 1);
-}
-
-#if !defined(CONFIG_USER_ONLY)
-static void s390_cpu_machine_reset_cb(void *opaque)
-{
- S390CPU *cpu = opaque;
-
- run_on_cpu(CPU(cpu), s390_do_cpu_full_reset, CPU(cpu));
-}
-#endif
-
-static void s390_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
-{
- info->mach = bfd_mach_s390_64;
- info->print_insn = print_insn_s390;
-}
-
-static void s390_cpu_realizefn(DeviceState *dev, Error **errp)
-{
- CPUState *cs = CPU(dev);
- S390CPUClass *scc = S390_CPU_GET_CLASS(dev);
- S390CPU *cpu = S390_CPU(dev);
- CPUS390XState *env = &cpu->env;
- Error *err = NULL;
-
-#if !defined(CONFIG_USER_ONLY)
- if (cpu->id >= max_cpus) {
- error_setg(&err, "Unable to add CPU: %" PRIi64
- ", max allowed: %d", cpu->id, max_cpus - 1);
- goto out;
- }
-#endif
- if (cpu_exists(cpu->id)) {
- error_setg(&err, "Unable to add CPU: %" PRIi64
- ", it already exists", cpu->id);
- goto out;
- }
- if (cpu->id != scc->next_cpu_id) {
- error_setg(&err, "Unable to add CPU: %" PRIi64
- ", The next available id is %" PRIi64, cpu->id,
- scc->next_cpu_id);
- goto out;
- }
-
- cpu_exec_init(cs, &err);
- if (err != NULL) {
- goto out;
- }
- scc->next_cpu_id++;
-
-#if !defined(CONFIG_USER_ONLY)
- qemu_register_reset(s390_cpu_machine_reset_cb, cpu);
-#endif
- env->cpu_num = cpu->id;
- s390_cpu_gdb_init(cs);
- qemu_init_vcpu(cs);
-#if !defined(CONFIG_USER_ONLY)
- run_on_cpu(cs, s390_do_cpu_full_reset, cs);
-#else
- cpu_reset(cs);
-#endif
-
- scc->parent_realize(dev, &err);
-
-#if !defined(CONFIG_USER_ONLY)
- if (dev->hotplugged) {
- raise_irq_cpu_hotplug();
- }
-#endif
-
-out:
- error_propagate(errp, err);
-}
-
-static void s390x_cpu_get_id(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- S390CPU *cpu = S390_CPU(obj);
- int64_t value = cpu->id;
-
- visit_type_int(v, name, &value, errp);
-}
-
-static void s390x_cpu_set_id(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- S390CPU *cpu = S390_CPU(obj);
- DeviceState *dev = DEVICE(obj);
- const int64_t min = 0;
- const int64_t max = UINT32_MAX;
- Error *err = NULL;
- int64_t value;
-
- if (dev->realized) {
- error_setg(errp, "Attempt to set property '%s' on '%s' after "
- "it was realized", name, object_get_typename(obj));
- return;
- }
-
- visit_type_int(v, name, &value, &err);
- if (err) {
- error_propagate(errp, err);
- return;
- }
- if (value < min || value > max) {
- error_setg(errp, "Property %s.%s doesn't take value %" PRId64
- " (minimum: %" PRId64 ", maximum: %" PRId64 ")" ,
- object_get_typename(obj), name, value, min, max);
- return;
- }
- cpu->id = value;
-}
-
-static void s390_cpu_initfn(Object *obj)
-{
- CPUState *cs = CPU(obj);
- S390CPU *cpu = S390_CPU(obj);
- CPUS390XState *env = &cpu->env;
- static bool inited;
-#if !defined(CONFIG_USER_ONLY)
- struct tm tm;
-#endif
-
- cs->env_ptr = env;
- cs->halted = 1;
- cs->exception_index = EXCP_HLT;
- object_property_add(OBJECT(cpu), "id", "int64_t", s390x_cpu_get_id,
- s390x_cpu_set_id, NULL, NULL, NULL);
-#if !defined(CONFIG_USER_ONLY)
- qemu_get_timedate(&tm, 0);
- env->tod_offset = TOD_UNIX_EPOCH +
- (time2tod(mktimegm(&tm)) * 1000000000ULL);
- env->tod_basetime = 0;
- env->tod_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, s390x_tod_timer, cpu);
- env->cpu_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, s390x_cpu_timer, cpu);
- s390_cpu_set_state(CPU_STATE_STOPPED, cpu);
-#endif
-
- if (tcg_enabled() && !inited) {
- inited = true;
- s390x_translate_init();
- }
-}
-
-static void s390_cpu_finalize(Object *obj)
-{
-#if !defined(CONFIG_USER_ONLY)
- S390CPU *cpu = S390_CPU(obj);
-
- qemu_unregister_reset(s390_cpu_machine_reset_cb, cpu);
- g_free(cpu->irqstate);
-#endif
-}
-
-#if !defined(CONFIG_USER_ONLY)
-static bool disabled_wait(CPUState *cpu)
-{
- return cpu->halted && !(S390_CPU(cpu)->env.psw.mask &
- (PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK));
-}
-
-static unsigned s390_count_running_cpus(void)
-{
- CPUState *cpu;
- int nr_running = 0;
-
- CPU_FOREACH(cpu) {
- uint8_t state = S390_CPU(cpu)->env.cpu_state;
- if (state == CPU_STATE_OPERATING ||
- state == CPU_STATE_LOAD) {
- if (!disabled_wait(cpu)) {
- nr_running++;
- }
- }
- }
-
- return nr_running;
-}
-
-unsigned int s390_cpu_halt(S390CPU *cpu)
-{
- CPUState *cs = CPU(cpu);
- trace_cpu_halt(cs->cpu_index);
-
- if (!cs->halted) {
- cs->halted = 1;
- cs->exception_index = EXCP_HLT;
- }
-
- return s390_count_running_cpus();
-}
-
-void s390_cpu_unhalt(S390CPU *cpu)
-{
- CPUState *cs = CPU(cpu);
- trace_cpu_unhalt(cs->cpu_index);
-
- if (cs->halted) {
- cs->halted = 0;
- cs->exception_index = -1;
- }
-}
-
-unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu)
- {
- trace_cpu_set_state(CPU(cpu)->cpu_index, cpu_state);
-
- switch (cpu_state) {
- case CPU_STATE_STOPPED:
- case CPU_STATE_CHECK_STOP:
- /* halt the cpu for common infrastructure */
- s390_cpu_halt(cpu);
- break;
- case CPU_STATE_OPERATING:
- case CPU_STATE_LOAD:
- /* unhalt the cpu for common infrastructure */
- s390_cpu_unhalt(cpu);
- break;
- default:
- error_report("Requested CPU state is not a valid S390 CPU state: %u",
- cpu_state);
- exit(1);
- }
- if (kvm_enabled() && cpu->env.cpu_state != cpu_state) {
- kvm_s390_set_cpu_state(cpu, cpu_state);
- }
- cpu->env.cpu_state = cpu_state;
-
- return s390_count_running_cpus();
-}
-#endif
-
-static gchar *s390_gdb_arch_name(CPUState *cs)
-{
- return g_strdup("s390:64-bit");
-}
-
-static void s390_cpu_class_init(ObjectClass *oc, void *data)
-{
- S390CPUClass *scc = S390_CPU_CLASS(oc);
- CPUClass *cc = CPU_CLASS(scc);
- DeviceClass *dc = DEVICE_CLASS(oc);
-
- scc->next_cpu_id = 0;
- scc->parent_realize = dc->realize;
- dc->realize = s390_cpu_realizefn;
-
- scc->parent_reset = cc->reset;
-#if !defined(CONFIG_USER_ONLY)
- scc->load_normal = s390_cpu_load_normal;
-#endif
- scc->cpu_reset = s390_cpu_reset;
- scc->initial_cpu_reset = s390_cpu_initial_reset;
- cc->reset = s390_cpu_full_reset;
- cc->has_work = s390_cpu_has_work;
- cc->do_interrupt = s390_cpu_do_interrupt;
- cc->dump_state = s390_cpu_dump_state;
- cc->set_pc = s390_cpu_set_pc;
- cc->gdb_read_register = s390_cpu_gdb_read_register;
- cc->gdb_write_register = s390_cpu_gdb_write_register;
-#ifdef CONFIG_USER_ONLY
- cc->handle_mmu_fault = s390_cpu_handle_mmu_fault;
-#else
- cc->get_phys_page_debug = s390_cpu_get_phys_page_debug;
- cc->vmsd = &vmstate_s390_cpu;
- cc->write_elf64_note = s390_cpu_write_elf64_note;
- cc->cpu_exec_interrupt = s390_cpu_exec_interrupt;
- cc->debug_excp_handler = s390x_cpu_debug_excp_handler;
-#endif
- cc->disas_set_info = s390_cpu_disas_set_info;
-
- cc->gdb_num_core_regs = S390_NUM_CORE_REGS;
- cc->gdb_core_xml_file = "s390x-core64.xml";
- cc->gdb_arch_name = s390_gdb_arch_name;
-
- /*
- * Reason: s390_cpu_realizefn() calls cpu_exec_init(), which saves
- * the object in cpus -> dangling pointer after final
- * object_unref().
- */
- dc->cannot_destroy_with_object_finalize_yet = true;
-}
-
-static const TypeInfo s390_cpu_type_info = {
- .name = TYPE_S390_CPU,
- .parent = TYPE_CPU,
- .instance_size = sizeof(S390CPU),
- .instance_init = s390_cpu_initfn,
- .instance_finalize = s390_cpu_finalize,
- .abstract = false,
- .class_size = sizeof(S390CPUClass),
- .class_init = s390_cpu_class_init,
-};
-
-static void s390_cpu_register_types(void)
-{
- type_register_static(&s390_cpu_type_info);
-}
-
-type_init(s390_cpu_register_types)