diff options
| -rw-r--r-- | xen-all.c | 23 |
1 files changed, 23 insertions, 0 deletions
@@ -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); |