diff options
Diffstat (limited to 'qom/cpu.c')
| -rw-r--r-- | qom/cpu.c | 457 |
1 files changed, 0 insertions, 457 deletions
diff --git a/qom/cpu.c b/qom/cpu.c deleted file mode 100644 index f7746546d0..0000000000 --- a/qom/cpu.c +++ /dev/null @@ -1,457 +0,0 @@ -/* - * QEMU CPU model - * - * Copyright (c) 2012-2014 SUSE LINUX Products GmbH - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see - * <http://www.gnu.org/licenses/gpl-2.0.html> - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include "qemu-common.h" -#include "qom/cpu.h" -#include "sysemu/hw_accel.h" -#include "qemu/notify.h" -#include "qemu/log.h" -#include "exec/log.h" -#include "exec/cpu-common.h" -#include "qemu/error-report.h" -#include "sysemu/sysemu.h" -#include "hw/boards.h" -#include "hw/qdev-properties.h" -#include "trace-root.h" - -CPUInterruptHandler cpu_interrupt_handler; - -CPUState *cpu_by_arch_id(int64_t id) -{ - CPUState *cpu; - - CPU_FOREACH(cpu) { - CPUClass *cc = CPU_GET_CLASS(cpu); - - if (cc->get_arch_id(cpu) == id) { - return cpu; - } - } - return NULL; -} - -bool cpu_exists(int64_t id) -{ - return !!cpu_by_arch_id(id); -} - -CPUState *cpu_create(const char *typename) -{ - Error *err = NULL; - CPUState *cpu = CPU(object_new(typename)); - object_property_set_bool(OBJECT(cpu), true, "realized", &err); - if (err != NULL) { - error_report_err(err); - object_unref(OBJECT(cpu)); - exit(EXIT_FAILURE); - } - return cpu; -} - -bool cpu_paging_enabled(const CPUState *cpu) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - return cc->get_paging_enabled(cpu); -} - -static bool cpu_common_get_paging_enabled(const CPUState *cpu) -{ - return false; -} - -void cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list, - Error **errp) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - cc->get_memory_mapping(cpu, list, errp); -} - -static void cpu_common_get_memory_mapping(CPUState *cpu, - MemoryMappingList *list, - Error **errp) -{ - error_setg(errp, "Obtaining memory mappings is unsupported on this CPU."); -} - -/* Resetting the IRQ comes from across the code base so we take the - * BQL here if we need to. cpu_interrupt assumes it is held.*/ -void cpu_reset_interrupt(CPUState *cpu, int mask) -{ - bool need_lock = !qemu_mutex_iothread_locked(); - - if (need_lock) { - qemu_mutex_lock_iothread(); - } - cpu->interrupt_request &= ~mask; - if (need_lock) { - qemu_mutex_unlock_iothread(); - } -} - -void cpu_exit(CPUState *cpu) -{ - atomic_set(&cpu->exit_request, 1); - /* Ensure cpu_exec will see the exit request after TCG has exited. */ - smp_wmb(); - atomic_set(&cpu->icount_decr.u16.high, -1); -} - -int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu, - void *opaque) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - return (*cc->write_elf32_qemunote)(f, cpu, opaque); -} - -static int cpu_common_write_elf32_qemunote(WriteCoreDumpFunction f, - CPUState *cpu, void *opaque) -{ - return 0; -} - -int cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu, - int cpuid, void *opaque) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - return (*cc->write_elf32_note)(f, cpu, cpuid, opaque); -} - -static int cpu_common_write_elf32_note(WriteCoreDumpFunction f, - CPUState *cpu, int cpuid, - void *opaque) -{ - return -1; -} - -int cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu, - void *opaque) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - return (*cc->write_elf64_qemunote)(f, cpu, opaque); -} - -static int cpu_common_write_elf64_qemunote(WriteCoreDumpFunction f, - CPUState *cpu, void *opaque) -{ - return 0; -} - -int cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu, - int cpuid, void *opaque) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - return (*cc->write_elf64_note)(f, cpu, cpuid, opaque); -} - -static int cpu_common_write_elf64_note(WriteCoreDumpFunction f, - CPUState *cpu, int cpuid, - void *opaque) -{ - return -1; -} - - -static int cpu_common_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg) -{ - return 0; -} - -static int cpu_common_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg) -{ - return 0; -} - -static bool cpu_common_debug_check_watchpoint(CPUState *cpu, CPUWatchpoint *wp) -{ - /* If no extra check is required, QEMU watchpoint match can be considered - * as an architectural match. - */ - return true; -} - -static bool cpu_common_virtio_is_big_endian(CPUState *cpu) -{ - return target_words_bigendian(); -} - -static void cpu_common_noop(CPUState *cpu) -{ -} - -static bool cpu_common_exec_interrupt(CPUState *cpu, int int_req) -{ - return false; -} - -GuestPanicInformation *cpu_get_crash_info(CPUState *cpu) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - GuestPanicInformation *res = NULL; - - if (cc->get_crash_info) { - res = cc->get_crash_info(cpu); - } - return res; -} - -void cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf, - int flags) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - if (cc->dump_state) { - cpu_synchronize_state(cpu); - cc->dump_state(cpu, f, cpu_fprintf, flags); - } -} - -void cpu_dump_statistics(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf, - int flags) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - if (cc->dump_statistics) { - cc->dump_statistics(cpu, f, cpu_fprintf, flags); - } -} - -void cpu_reset(CPUState *cpu) -{ - CPUClass *klass = CPU_GET_CLASS(cpu); - - if (klass->reset != NULL) { - (*klass->reset)(cpu); - } - - trace_guest_cpu_reset(cpu); -} - -static void cpu_common_reset(CPUState *cpu) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - if (qemu_loglevel_mask(CPU_LOG_RESET)) { - qemu_log("CPU Reset (CPU %d)\n", cpu->cpu_index); - log_cpu_state(cpu, cc->reset_dump_flags); - } - - cpu->interrupt_request = 0; - cpu->halted = 0; - cpu->mem_io_pc = 0; - cpu->mem_io_vaddr = 0; - cpu->icount_extra = 0; - cpu->icount_decr.u32 = 0; - cpu->can_do_io = 1; - cpu->exception_index = -1; - cpu->crash_occurred = false; - cpu->cflags_next_tb = -1; - - if (tcg_enabled()) { - cpu_tb_jmp_cache_clear(cpu); - - tcg_flush_softmmu_tlb(cpu); - } -} - -static bool cpu_common_has_work(CPUState *cs) -{ - return false; -} - -ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model) -{ - CPUClass *cc = CPU_CLASS(object_class_by_name(typename)); - - assert(cpu_model && cc->class_by_name); - return cc->class_by_name(cpu_model); -} - -static void cpu_common_parse_features(const char *typename, char *features, - Error **errp) -{ - char *val; - static bool cpu_globals_initialized; - /* Single "key=value" string being parsed */ - char *featurestr = features ? strtok(features, ",") : NULL; - - /* should be called only once, catch invalid users */ - assert(!cpu_globals_initialized); - cpu_globals_initialized = true; - - while (featurestr) { - val = strchr(featurestr, '='); - if (val) { - GlobalProperty *prop = g_new0(typeof(*prop), 1); - *val = 0; - val++; - prop->driver = typename; - prop->property = g_strdup(featurestr); - prop->value = g_strdup(val); - prop->errp = &error_fatal; - qdev_prop_register_global(prop); - } else { - error_setg(errp, "Expected key=value format, found %s.", - featurestr); - return; - } - featurestr = strtok(NULL, ","); - } -} - -static void cpu_common_realizefn(DeviceState *dev, Error **errp) -{ - CPUState *cpu = CPU(dev); - Object *machine = qdev_get_machine(); - - /* qdev_get_machine() can return something that's not TYPE_MACHINE - * if this is one of the user-only emulators; in that case there's - * no need to check the ignore_memory_transaction_failures board flag. - */ - if (object_dynamic_cast(machine, TYPE_MACHINE)) { - ObjectClass *oc = object_get_class(machine); - MachineClass *mc = MACHINE_CLASS(oc); - - if (mc) { - cpu->ignore_memory_transaction_failures = - mc->ignore_memory_transaction_failures; - } - } - - if (dev->hotplugged) { - cpu_synchronize_post_init(cpu); - cpu_resume(cpu); - } - - /* NOTE: latest generic point where the cpu is fully realized */ - trace_init_vcpu(cpu); -} - -static void cpu_common_unrealizefn(DeviceState *dev, Error **errp) -{ - CPUState *cpu = CPU(dev); - /* NOTE: latest generic point before the cpu is fully unrealized */ - trace_fini_vcpu(cpu); - cpu_exec_unrealizefn(cpu); -} - -static void cpu_common_initfn(Object *obj) -{ - CPUState *cpu = CPU(obj); - CPUClass *cc = CPU_GET_CLASS(obj); - - cpu->cpu_index = UNASSIGNED_CPU_INDEX; - cpu->gdb_num_regs = cpu->gdb_num_g_regs = cc->gdb_num_core_regs; - /* *-user doesn't have configurable SMP topology */ - /* the default value is changed by qemu_init_vcpu() for softmmu */ - cpu->nr_cores = 1; - cpu->nr_threads = 1; - - qemu_mutex_init(&cpu->work_mutex); - QTAILQ_INIT(&cpu->breakpoints); - QTAILQ_INIT(&cpu->watchpoints); - - cpu_exec_initfn(cpu); -} - -static void cpu_common_finalize(Object *obj) -{ -} - -static int64_t cpu_common_get_arch_id(CPUState *cpu) -{ - return cpu->cpu_index; -} - -static vaddr cpu_adjust_watchpoint_address(CPUState *cpu, vaddr addr, int len) -{ - return addr; -} - -static void generic_handle_interrupt(CPUState *cpu, int mask) -{ - cpu->interrupt_request |= mask; - - if (!qemu_cpu_is_self(cpu)) { - qemu_cpu_kick(cpu); - } -} - -CPUInterruptHandler cpu_interrupt_handler = generic_handle_interrupt; - -static void cpu_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - CPUClass *k = CPU_CLASS(klass); - - k->parse_features = cpu_common_parse_features; - k->reset = cpu_common_reset; - k->get_arch_id = cpu_common_get_arch_id; - k->has_work = cpu_common_has_work; - k->get_paging_enabled = cpu_common_get_paging_enabled; - k->get_memory_mapping = cpu_common_get_memory_mapping; - k->write_elf32_qemunote = cpu_common_write_elf32_qemunote; - k->write_elf32_note = cpu_common_write_elf32_note; - k->write_elf64_qemunote = cpu_common_write_elf64_qemunote; - k->write_elf64_note = cpu_common_write_elf64_note; - k->gdb_read_register = cpu_common_gdb_read_register; - k->gdb_write_register = cpu_common_gdb_write_register; - k->virtio_is_big_endian = cpu_common_virtio_is_big_endian; - k->debug_excp_handler = cpu_common_noop; - k->debug_check_watchpoint = cpu_common_debug_check_watchpoint; - k->cpu_exec_enter = cpu_common_noop; - k->cpu_exec_exit = cpu_common_noop; - k->cpu_exec_interrupt = cpu_common_exec_interrupt; - k->adjust_watchpoint_address = cpu_adjust_watchpoint_address; - set_bit(DEVICE_CATEGORY_CPU, dc->categories); - dc->realize = cpu_common_realizefn; - dc->unrealize = cpu_common_unrealizefn; - dc->props = cpu_common_props; - /* - * Reason: CPUs still need special care by board code: wiring up - * IRQs, adding reset handlers, halting non-first CPUs, ... - */ - dc->user_creatable = false; -} - -static const TypeInfo cpu_type_info = { - .name = TYPE_CPU, - .parent = TYPE_DEVICE, - .instance_size = sizeof(CPUState), - .instance_init = cpu_common_initfn, - .instance_finalize = cpu_common_finalize, - .abstract = true, - .class_size = sizeof(CPUClass), - .class_init = cpu_class_init, -}; - -static void cpu_register_types(void) -{ - type_register_static(&cpu_type_info); -} - -type_init(cpu_register_types) |