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git.proxmox.com Git - qemu.git/blob - include/qom/cpu.h
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4 * Copyright (c) 2012 SUSE LINUX Products GmbH
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see
18 * <http://www.gnu.org/licenses/gpl-2.0.html>
23 #include "hw/qdev-core.h"
24 #include "qemu/thread.h"
28 * @section_id: QEMU-cpu
30 * @short_description: Base class for all CPUs
33 #define TYPE_CPU "cpu"
35 #define CPU(obj) OBJECT_CHECK(CPUState, (obj), TYPE_CPU)
36 #define CPU_CLASS(class) OBJECT_CLASS_CHECK(CPUClass, (class), TYPE_CPU)
37 #define CPU_GET_CLASS(obj) OBJECT_GET_CLASS(CPUClass, (obj), TYPE_CPU)
39 typedef struct CPUState CPUState
;
43 * @reset: Callback to reset the #CPUState to its initial state.
45 * Represents a CPU family or model.
47 typedef struct CPUClass
{
49 DeviceClass parent_class
;
52 void (*reset
)(CPUState
*cpu
);
60 * @created: Indicates whether the CPU thread has been successfully created.
61 * @stop: Indicates a pending stop request.
62 * @stopped: Indicates the CPU has been artificially stopped.
63 * @kvm_fd: vCPU file descriptor for KVM.
65 * State of one CPU core or thread.
69 DeviceState parent_obj
;
72 struct QemuThread
*thread
;
77 struct QemuCond
*halt_cond
;
78 struct qemu_work_item
*queued_work_first
, *queued_work_last
;
84 #if !defined(CONFIG_USER_ONLY)
88 struct KVMState
*kvm_state
;
89 struct kvm_run
*kvm_run
;
91 /* TODO Move common fields from CPUArchState here. */
97 * @cpu: The CPU whose state is to be reset.
99 void cpu_reset(CPUState
*cpu
);
103 * @cpu: The vCPU to check.
105 * Checks whether the CPU has work to do.
107 * Returns: %true if the CPU has work, %false otherwise.
109 bool qemu_cpu_has_work(CPUState
*cpu
);
113 * @cpu: The vCPU to check against.
115 * Checks whether the caller is executing on the vCPU thread.
117 * Returns: %true if called from @cpu's thread, %false otherwise.
119 bool qemu_cpu_is_self(CPUState
*cpu
);
123 * @cpu: The vCPU to kick.
125 * Kicks @cpu's thread.
127 void qemu_cpu_kick(CPUState
*cpu
);
131 * @cpu: The CPU to check.
133 * Checks whether the CPU is stopped.
135 * Returns: %true if run state is not running or if artificially stopped;
138 bool cpu_is_stopped(CPUState
*cpu
);
142 * @cpu: The vCPU to run on.
143 * @func: The function to be executed.
144 * @data: Data to pass to the function.
146 * Schedules the function @func for execution on the vCPU @cpu.
148 void run_on_cpu(CPUState
*cpu
, void (*func
)(void *data
), void *data
);