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strip out per cpu thread code

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This commit is contained in:
Chris Eagle
2016-03-25 17:24:28 -07:00
parent a7d89a8c63
commit 9467254fc0
31 changed files with 8 additions and 426 deletions
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77
qemu/include/qemu/main-loop.h
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@@ -1,77 +0,0 @@
/*
* QEMU System Emulator
*
* Copyright (c) 2003-2008 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef QEMU_MAIN_LOOP_H
#define QEMU_MAIN_LOOP_H 1
#define SIG_IPI SIGUSR1
struct uc_struct;
/**
* qemu_init_main_loop: Set up the process so that it can run the main loop.
*
* This includes setting up signal handlers. It should be called before
* any other threads are created. In addition, threads other than the
* main one should block signals that are trapped by the main loop.
* For simplicity, you can consider these signals to be safe: SIGUSR1,
* SIGUSR2, thread signals (SIGFPE, SIGILL, SIGSEGV, SIGBUS) and real-time
* signals if available. Remember that Windows in practice does not have
* signals, though.
*
* In the case of QEMU tools, this will also start/initialize timers.
*/
int qemu_init_main_loop(void);
/**
* qemu_mutex_lock_iothread: Lock the main loop mutex.
*
* This function locks the main loop mutex. The mutex is taken by
* qemu_init_main_loop and always taken except while waiting on
* external events (such as with select). The mutex should be taken
* by threads other than the main loop thread when calling
* qemu_bh_new(), qemu_set_fd_handler() and basically all other
* functions documented in this file.
*
* NOTE: tools currently are single-threaded and qemu_mutex_lock_iothread
* is a no-op there.
*/
void qemu_mutex_lock_iothread(struct uc_struct* uc);
/**
* qemu_mutex_unlock_iothread: Unlock the main loop mutex.
*
* This function unlocks the main loop mutex. The mutex is taken by
* qemu_init_main_loop and always taken except while waiting on
* external events (such as with select). The mutex should be unlocked
* as soon as possible by threads other than the main loop thread,
* because it prevents the main loop from processing callbacks,
* including timers and bottom halves.
*
* NOTE: tools currently are single-threaded and qemu_mutex_unlock_iothread
* is a no-op there.
*/
void qemu_mutex_unlock_iothread(struct uc_struct* uc);
#endif

1
qemu/include/qemu/osdep.h
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@@ -183,7 +183,6 @@ int qemu_close(int fd);
#endif
int qemu_create_pidfile(const char *filename);
int qemu_get_thread_id(void);
#ifdef _WIN32
static inline void qemu_timersub(const struct timeval *val1,

2
qemu/include/qemu/thread.h
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@@ -58,8 +58,6 @@ int qemu_thread_create(struct uc_struct *uc, QemuThread *thread, const char *nam
void *(*start_routine)(void *),
void *arg, int mode);
void *qemu_thread_join(QemuThread *thread);
void qemu_thread_get_self(struct uc_struct *uc, QemuThread *thread);
bool qemu_thread_is_self(QemuThread *thread);
void qemu_thread_exit(struct uc_struct *uc, void *retval);
#endif

10
qemu/include/qom/cpu.h
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@@ -436,16 +436,6 @@ static inline bool cpu_has_work(CPUState *cpu)
return cc->has_work(cpu);
}
/**
* qemu_cpu_is_self:
* @cpu: The vCPU to check against.
*
* Checks whether the caller is executing on the vCPU thread.
*
* Returns: %true if called from @cpu's thread, %false otherwise.
*/
bool qemu_cpu_is_self(CPUState *cpu);
/**
* qemu_cpu_kick:
* @cpu: The vCPU to kick.

1
qemu/include/sysemu/cpus.h
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@@ -6,7 +6,6 @@ struct uc_struct;
/* cpus.c */
void qemu_init_cpu_loop(struct uc_struct*);
int resume_all_vcpus(struct uc_struct*);
void pause_all_vcpus(struct uc_struct*);
void cpu_stop_current(struct uc_struct*);
void cpu_synchronize_all_states(void);

40
qemu/include/sysemu/iothread.h
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@@ -1,40 +0,0 @@
/*
* Event loop thread
*
* Copyright Red Hat Inc., 2013
*
* Authors:
* Stefan Hajnoczi <stefanha@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#ifndef IOTHREAD_H
#define IOTHREAD_H
#include "block/aio.h"
#include "qemu/thread.h"
#define TYPE_IOTHREAD "iothread"
typedef struct {
Object parent_obj;
QemuThread thread;
AioContext *ctx;
QemuMutex init_done_lock;
QemuCond init_done_cond; /* is thread initialization done? */
bool stopping;
int thread_id;
} IOThread;
#define IOTHREAD(obj) \
OBJECT_CHECK(IOThread, obj, TYPE_IOTHREAD)
IOThread *iothread_find(const char *id);
char *iothread_get_id(IOThread *iothread);
AioContext *iothread_get_aio_context(IOThread *iothread);
#endif /* IOTHREAD_H */

2
qemu/include/sysemu/sysemu.h
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@@ -2,8 +2,6 @@
#define SYSEMU_H
/* Misc. things related to the system emulator. */
#include "qemu/main-loop.h"
#include "qemu/timer.h"
#include "qapi/error.h"