#ifndef QEMU_CPU_H
#define QEMU_CPU_H
+#include <signal.h>
#include "hw/qdev-core.h"
#include "qemu/thread.h"
+#include "qemu/typedefs.h"
+
+typedef int (*WriteCoreDumpFunction)(void *buf, size_t size, void *opaque);
/**
* SECTION:cpu
/**
* CPUClass:
+ * @class_by_name: Callback to map -cpu command line model name to an
+ * instantiatable CPU type.
* @reset: Callback to reset the #CPUState to its initial state.
+ * @do_interrupt: Callback for interrupt handling.
+ * @get_arch_id: Callback for getting architecture-dependent CPU ID.
+ * @get_paging_enabled: Callback for inquiring whether paging is enabled.
+ * @get_memory_mapping: Callback for obtaining the memory mappings.
+ * @vmsd: State description for migration.
*
* Represents a CPU family or model.
*/
DeviceClass parent_class;
/*< public >*/
+ ObjectClass *(*class_by_name)(const char *cpu_model);
+
void (*reset)(CPUState *cpu);
+ void (*do_interrupt)(CPUState *cpu);
+ int64_t (*get_arch_id)(CPUState *cpu);
+ bool (*get_paging_enabled)(const CPUState *cpu);
+ void (*get_memory_mapping)(CPUState *cpu, MemoryMappingList *list,
+ Error **errp);
+
+ const struct VMStateDescription *vmsd;
+ int (*write_elf64_note)(WriteCoreDumpFunction f, CPUState *cpu,
+ int cpuid, void *opaque);
+ int (*write_elf64_qemunote)(WriteCoreDumpFunction f, CPUState *cpu,
+ void *opaque);
+ int (*write_elf32_note)(WriteCoreDumpFunction f, CPUState *cpu,
+ int cpuid, void *opaque);
+ int (*write_elf32_qemunote)(WriteCoreDumpFunction f, CPUState *cpu,
+ void *opaque);
} CPUClass;
struct KVMState;
/**
* CPUState:
+ * @cpu_index: CPU index (informative).
+ * @nr_cores: Number of cores within this CPU package.
+ * @nr_threads: Number of threads within this CPU.
+ * @numa_node: NUMA node this CPU is belonging to.
+ * @host_tid: Host thread ID.
+ * @running: #true if CPU is currently running (usermode).
* @created: Indicates whether the CPU thread has been successfully created.
+ * @interrupt_request: Indicates a pending interrupt request.
+ * @halted: Nonzero if the CPU is in suspended state.
* @stop: Indicates a pending stop request.
* @stopped: Indicates the CPU has been artificially stopped.
+ * @tcg_exit_req: Set to force TCG to stop executing linked TBs for this
+ * CPU and return to its top level loop.
+ * @env_ptr: Pointer to subclass-specific CPUArchState field.
+ * @current_tb: Currently executing TB.
* @kvm_fd: vCPU file descriptor for KVM.
*
* State of one CPU core or thread.
DeviceState parent_obj;
/*< public >*/
+ int nr_cores;
+ int nr_threads;
+ int numa_node;
+
struct QemuThread *thread;
#ifdef _WIN32
HANDLE hThread;
#endif
int thread_id;
+ uint32_t host_tid;
+ bool running;
struct QemuCond *halt_cond;
struct qemu_work_item *queued_work_first, *queued_work_last;
bool thread_kicked;
bool created;
bool stop;
bool stopped;
+ volatile sig_atomic_t exit_request;
+ volatile sig_atomic_t tcg_exit_req;
+ uint32_t interrupt_request;
+
+ void *env_ptr; /* CPUArchState */
+ struct TranslationBlock *current_tb;
-#if !defined(CONFIG_USER_ONLY)
int kvm_fd;
bool kvm_vcpu_dirty;
-#endif
struct KVMState *kvm_state;
struct kvm_run *kvm_run;
/* TODO Move common fields from CPUArchState here. */
+ int cpu_index; /* used by alpha TCG */
+ uint32_t halted; /* used by alpha, cris, ppc TCG */
};
+/**
+ * cpu_paging_enabled:
+ * @cpu: The CPU whose state is to be inspected.
+ *
+ * Returns: %true if paging is enabled, %false otherwise.
+ */
+bool cpu_paging_enabled(const CPUState *cpu);
+
+/**
+ * cpu_get_memory_mapping:
+ * @cpu: The CPU whose memory mappings are to be obtained.
+ * @list: Where to write the memory mappings to.
+ * @errp: Pointer for reporting an #Error.
+ */
+void cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list,
+ Error **errp);
+
+/**
+ * cpu_write_elf64_note:
+ * @f: pointer to a function that writes memory to a file
+ * @cpu: The CPU whose memory is to be dumped
+ * @cpuid: ID number of the CPU
+ * @opaque: pointer to the CPUState struct
+ */
+int cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu,
+ int cpuid, void *opaque);
+
+/**
+ * cpu_write_elf64_qemunote:
+ * @f: pointer to a function that writes memory to a file
+ * @cpu: The CPU whose memory is to be dumped
+ * @cpuid: ID number of the CPU
+ * @opaque: pointer to the CPUState struct
+ */
+int cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
+ void *opaque);
+
+/**
+ * cpu_write_elf32_note:
+ * @f: pointer to a function that writes memory to a file
+ * @cpu: The CPU whose memory is to be dumped
+ * @cpuid: ID number of the CPU
+ * @opaque: pointer to the CPUState struct
+ */
+int cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu,
+ int cpuid, void *opaque);
+
+/**
+ * cpu_write_elf32_qemunote:
+ * @f: pointer to a function that writes memory to a file
+ * @cpu: The CPU whose memory is to be dumped
+ * @cpuid: ID number of the CPU
+ * @opaque: pointer to the CPUState struct
+ */
+int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
+ void *opaque);
/**
* cpu_reset:
*/
void cpu_reset(CPUState *cpu);
+/**
+ * cpu_class_by_name:
+ * @typename: The CPU base type.
+ * @cpu_model: The model string without any parameters.
+ *
+ * Looks up a CPU #ObjectClass matching name @cpu_model.
+ *
+ * Returns: A #CPUClass or %NULL if not matching class is found.
+ */
+ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model);
+
+/**
+ * cpu_class_set_vmsd:
+ * @cc: CPU class
+ * @value: Value to set. Unused for %CONFIG_USER_ONLY.
+ *
+ * Sets #VMStateDescription for @cc.
+ *
+ * The @value argument is intentionally discarded for the non-softmmu targets
+ * to avoid linker errors or excessive preprocessor usage. If this behavior
+ * is undesired, you should assign #CPUClass.vmsd directly instead.
+ */
+#ifndef CONFIG_USER_ONLY
+static inline void cpu_class_set_vmsd(CPUClass *cc,
+ const struct VMStateDescription *value)
+{
+ cc->vmsd = value;
+}
+#else
+#define cpu_class_set_vmsd(cc, value) ((cc)->vmsd = NULL)
+#endif
+
+/**
+ * device_class_set_vmsd:
+ * @dc: Device class
+ * @value: Value to set. Unused for %CONFIG_USER_ONLY.
+ *
+ * Sets #VMStateDescription for @dc.
+ *
+ * The @value argument is intentionally discarded for the non-softmmu targets
+ * to avoid linker errors or excessive preprocessor usage. If this behavior
+ * is undesired, you should assign #DeviceClass.vmsd directly instead.
+ */
+#ifndef CONFIG_USER_ONLY
+static inline void device_class_set_vmsd(DeviceClass *dc,
+ const struct VMStateDescription *value)
+{
+ dc->vmsd = value;
+}
+#else
+#define device_class_set_vmsd(dc, value) ((dc)->vmsd = NULL)
+#endif
+
/**
* qemu_cpu_has_work:
* @cpu: The vCPU to check.
*/
void run_on_cpu(CPUState *cpu, void (*func)(void *data), void *data);
+/**
+ * qemu_for_each_cpu:
+ * @func: The function to be executed.
+ * @data: Data to pass to the function.
+ *
+ * Executes @func for each CPU.
+ */
+void qemu_for_each_cpu(void (*func)(CPUState *cpu, void *data), void *data);
+
+/**
+ * qemu_get_cpu:
+ * @index: The CPUState@cpu_index value of the CPU to obtain.
+ *
+ * Gets a CPU matching @index.
+ *
+ * Returns: The CPU or %NULL if there is no matching CPU.
+ */
+CPUState *qemu_get_cpu(int index);
+
+/**
+ * cpu_exists:
+ * @id: Guest-exposed CPU ID to lookup.
+ *
+ * Search for CPU with specified ID.
+ *
+ * Returns: %true - CPU is found, %false - CPU isn't found.
+ */
+bool cpu_exists(int64_t id);
+
+#ifndef CONFIG_USER_ONLY
+
+typedef void (*CPUInterruptHandler)(CPUState *, int);
+
+extern CPUInterruptHandler cpu_interrupt_handler;
+
+/**
+ * cpu_interrupt:
+ * @cpu: The CPU to set an interrupt on.
+ * @mask: The interupts to set.
+ *
+ * Invokes the interrupt handler.
+ */
+static inline void cpu_interrupt(CPUState *cpu, int mask)
+{
+ cpu_interrupt_handler(cpu, mask);
+}
+
+#else /* USER_ONLY */
+
+void cpu_interrupt(CPUState *cpu, int mask);
+
+#endif /* USER_ONLY */
+
+/**
+ * cpu_reset_interrupt:
+ * @cpu: The CPU to clear the interrupt on.
+ * @mask: The interrupt mask to clear.
+ *
+ * Resets interrupts on the vCPU @cpu.
+ */
+void cpu_reset_interrupt(CPUState *cpu, int mask);
+
+/**
+ * cpu_resume:
+ * @cpu: The CPU to resume.
+ *
+ * Resumes CPU, i.e. puts CPU into runnable state.
+ */
+void cpu_resume(CPUState *cpu);
+
+#ifdef CONFIG_SOFTMMU
+extern const struct VMStateDescription vmstate_cpu_common;
+#else
+#define vmstate_cpu_common vmstate_dummy
+#endif
+
+#define VMSTATE_CPU() { \
+ .name = "parent_obj", \
+ .size = sizeof(CPUState), \
+ .vmsd = &vmstate_cpu_common, \
+ .flags = VMS_STRUCT, \
+ .offset = 0, \
+}
#endif
projects / qemu.git / blobdiff