[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] xen: introduce xen_change_state_handler
From: Anthony PERARD <anthony.perard@xxxxxxxxxx> Remove the call to xenstore_record_dm_state from xen_main_loop_prepare that is HVM specific. Add a new vm_change_state_handler shared between xen_pv and xen_hvm machines to record the VM state to xenstore. Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx> Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> --- xen-all.c | 25 ++++++++++++++++++------- 1 files changed, 18 insertions(+), 7 deletions(-) diff --git a/xen-all.c b/xen-all.c index 3fd04ef..e8da35f 100644 --- a/xen-all.c +++ b/xen-all.c @@ -797,12 +797,17 @@ void xenstore_store_pv_console_info(int i, CharDriverState *chr) } } -static void xenstore_record_dm_state(XenIOState *s, const char *state) +static void xenstore_record_dm_state(struct xs_handle *xs, const char *state) { char path[50]; + if (xs == NULL) { + fprintf(stderr, "xenstore connection not initialized\n"); + exit(1); + } + snprintf(path, sizeof (path), "/local/domain/0/device-model/%u/state", xen_domid); - if (!xs_write(s->xenstore, XBT_NULL, path, state, strlen(state))) { + if (!xs_write(xs, XBT_NULL, path, state, strlen(state))) { fprintf(stderr, "error recording dm state\n"); exit(1); } @@ -823,15 +828,20 @@ 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"); } /* Initialise Xen */ -static void xen_vm_change_state_handler(void *opaque, int running, int reason) +static void xen_change_state_handler(void *opaque, int running, int reason) +{ + if (running) { + /* record state running */ + xenstore_record_dm_state(xenstore, "running"); + } +} + +static void xen_hvm_change_state_handler(void *opaque, int running, int reason) { XenIOState *state = opaque; if (running) { @@ -854,6 +864,7 @@ int xen_init(void) xen_be_printf(NULL, 0, "can't open xen interface\n"); return -1; } + qemu_add_vm_change_state_handler(xen_change_state_handler, NULL); return 0; } @@ -915,7 +926,7 @@ int xen_hvm_init(void) qemu_map_cache_init(); xen_ram_init(ram_size); - qemu_add_vm_change_state_handler(xen_vm_change_state_handler, state); + qemu_add_vm_change_state_handler(xen_hvm_change_state_handler, state); state->client = xen_cpu_phys_memory_client; QLIST_INIT(&state->physmap); -- 1.7.2.3 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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