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xen: Set running state in xenstore.

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This tells to the xen management tool that the machine can begin run.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Anthony PERARD 2010-09-06 20:07:33 +01:00 committed by Alexander Graf
parent 9ce94e7c8a
commit 29321335e0
1 changed files with 23 additions and 0 deletions
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23
xen-all.c
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@ -64,6 +64,8 @@ typedef struct XenIOState {
/* which vcpu we are serving */
int send_vcpu;
struct xs_handle *xenstore;
Notifier exit;
} XenIOState;
@ -450,6 +452,17 @@ static void cpu_handle_ioreq(void *opaque)
}
}
static void xenstore_record_dm_state(XenIOState *s, const char *state)
{
char path[50];
snprintf(path, sizeof (path), "/local/domain/0/device-model/%u/state", xen_domid);
if (!xs_write(s->xenstore, XBT_NULL, path, state, strlen(state))) {
fprintf(stderr, "error recording dm state\n");
exit(1);
}
}
static void xen_main_loop_prepare(XenIOState *state)
{
int evtchn_fd = -1;
@ -465,6 +478,9 @@ static void xen_main_loop_prepare(XenIOState *state)
if (evtchn_fd != -1) {
qemu_set_fd_handler(evtchn_fd, cpu_handle_ioreq, NULL, state);
}
/* record state running */
xenstore_record_dm_state(state, "running");
}
@ -483,6 +499,7 @@ static void xen_exit_notifier(Notifier *n)
XenIOState *state = container_of(n, XenIOState, exit);
xc_evtchn_close(state->xce_handle);
xs_daemon_close(state->xenstore);
}
int xen_init(void)
@ -510,6 +527,12 @@ int xen_hvm_init(void)
return -errno;
}
state->xenstore = xs_daemon_open();
if (state->xenstore == NULL) {
perror("xen: xenstore open");
return -errno;
}
state->exit.notify = xen_exit_notifier;
qemu_add_exit_notifier(&state->exit);