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[Qemu-devel] [PATCH 1/4] Make vm_stop available for block layer
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH 1/4] Make vm_stop available for block layer |
Date: |
Mon, 13 Dec 2010 17:29:04 +0100 |
blkqueue wants to stop the VM after an error has occurred, so we need to make
vm_stop available in common code. It now returns a boolean that tells if the VM
could be stopped, which is always true in qemu itself, and always false in the
tools.
Signed-off-by: Kevin Wolf <address@hidden>
---
cpus.c | 8 +++++---
qemu-common.h | 3 +++
qemu-tool.c | 5 +++++
sysemu.h | 1 -
4 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/cpus.c b/cpus.c
index 91a0fb1..8ec0ed6 100644
--- a/cpus.c
+++ b/cpus.c
@@ -310,9 +310,10 @@ void qemu_notify_event(void)
void qemu_mutex_lock_iothread(void) {}
void qemu_mutex_unlock_iothread(void) {}
-void vm_stop(int reason)
+bool vm_stop(int reason)
{
do_vm_stop(reason);
+ return true;
}
#else /* CONFIG_IOTHREAD */
@@ -848,7 +849,7 @@ static void qemu_system_vmstop_request(int reason)
qemu_notify_event();
}
-void vm_stop(int reason)
+bool vm_stop(int reason)
{
QemuThread me;
qemu_thread_self(&me);
@@ -863,9 +864,10 @@ void vm_stop(int reason)
cpu_exit(cpu_single_env);
cpu_single_env->stop = 1;
}
- return;
+ return true;
}
do_vm_stop(reason);
+ return true;
}
#endif
diff --git a/qemu-common.h b/qemu-common.h
index de82c2e..cb077a0 100644
--- a/qemu-common.h
+++ b/qemu-common.h
@@ -115,6 +115,9 @@ static inline char *realpath(const char *path, char
*resolved_path)
#endif /* !defined(NEED_CPU_H) */
+/* VM state */
+bool vm_stop(int reason);
+
/* bottom halves */
typedef void QEMUBHFunc(void *opaque);
diff --git a/qemu-tool.c b/qemu-tool.c
index 392e1c9..3926435 100644
--- a/qemu-tool.c
+++ b/qemu-tool.c
@@ -111,3 +111,8 @@ int qemu_set_fd_handler2(int fd,
{
return 0;
}
+
+bool vm_stop(int reason)
+{
+ return false;
+}
diff --git a/sysemu.h b/sysemu.h
index b81a70e..77788f1 100644
--- a/sysemu.h
+++ b/sysemu.h
@@ -38,7 +38,6 @@ VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
void qemu_del_vm_change_state_handler(VMChangeStateEntry *e);
void vm_start(void);
-void vm_stop(int reason);
uint64_t ram_bytes_remaining(void);
uint64_t ram_bytes_transferred(void);
--
1.7.2.3