提交 2970a6c9 编写于 作者: A aliguori

char: Fix initial reset (Jan Kiszka)

Recent changes to the graphical console initialization broke the initial
CHR_EVENT_RESET distribution. The reset BHs generated on char device
initialization are now already consumed during machine init (ide init
... -> qemu_aio_wait -> qemu_bh_poll). Therefore, this patch moves the
initial qemu_chr_reset calls into a separate funtion which is called
after machine init.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6700 c046a42c-6fe2-441c-8c8c-71466251a162
上级 b36d24b6
......@@ -101,6 +101,10 @@
/***********************************************************/
/* character device */
static TAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
TAILQ_HEAD_INITIALIZER(chardevs);
static int initial_reset_issued;
static void qemu_chr_event(CharDriverState *s, int event)
{
if (!s->chr_event)
......@@ -118,12 +122,23 @@ static void qemu_chr_reset_bh(void *opaque)
void qemu_chr_reset(CharDriverState *s)
{
if (s->bh == NULL) {
if (s->bh == NULL && initial_reset_issued) {
s->bh = qemu_bh_new(qemu_chr_reset_bh, s);
qemu_bh_schedule(s->bh);
}
}
void qemu_chr_initial_reset(void)
{
CharDriverState *chr;
initial_reset_issued = 1;
TAILQ_FOREACH(chr, &chardevs, next) {
qemu_chr_reset(chr);
}
}
int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
{
return s->chr_write(s, buf, len);
......@@ -2076,9 +2091,6 @@ static CharDriverState *qemu_chr_open_tcp(const char *host_str,
return NULL;
}
static TAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs
= TAILQ_HEAD_INITIALIZER(chardevs);
CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
{
const char *p;
......
......@@ -74,6 +74,7 @@ void qemu_chr_add_handlers(CharDriverState *s,
void *opaque);
int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg);
void qemu_chr_reset(CharDriverState *s);
void qemu_chr_initial_reset(void);
int qemu_chr_can_read(CharDriverState *s);
void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len);
void qemu_chr_accept_input(CharDriverState *s);
......
......@@ -5693,6 +5693,7 @@ int main(int argc, char **argv, char **envp)
}
text_consoles_set_display(display_state);
qemu_chr_initial_reset();
if (monitor_device && monitor_hd)
monitor_init(monitor_hd, !nographic);
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册