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Staging: hv: util: Make hv_utils a vmbus device driver
In preperation for supporting auto-loading the util driver, make the util driver a vmbus driver. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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parent
1ec91ebe4d
commit
283f21294e
1 changed files with 63 additions and 1 deletions
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@ -36,6 +36,8 @@ static u8 *shut_txf_buf;
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static u8 *time_txf_buf;
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static u8 *hbeat_txf_buf;
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static const char *driver_name = "hv_util";
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static void shutdown_onchannelcallback(void *context)
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{
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struct vmbus_channel *channel = context;
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@ -210,6 +212,63 @@ static void heartbeat_onchannelcallback(void *context)
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}
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}
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/*
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* The devices managed by the util driver don't need any additional
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* setup.
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*/
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static int util_probe(struct hv_device *dev)
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{
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return 0;
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}
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static int util_remove(struct hv_device *dev)
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{
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return 0;
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}
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static const struct hv_vmbus_device_id id_table[] = {
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{
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/* Shutdown guid */
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.guid = {
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0x31, 0x60, 0x0B, 0X0E, 0x13, 0x52, 0x34, 0x49,
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0x81, 0x8B, 0x38, 0XD9, 0x0C, 0xED, 0x39, 0xDB
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}
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},
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{
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/* Time synch guid */
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.guid = {
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0x30, 0xe6, 0x27, 0x95, 0xae, 0xd0, 0x7b, 0x49,
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0xad, 0xce, 0xe8, 0x0a, 0xb0, 0x17, 0x5c, 0xaf
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}
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},
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{
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/* Heartbeat guid */
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.guid = {
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0x39, 0x4f, 0x16, 0x57, 0x15, 0x91, 0x78, 0x4e,
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0xab, 0x55, 0x38, 0x2f, 0x3b, 0xd5, 0x42, 0x2d
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}
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},
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{
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/* KVP guid */
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.guid = {
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0xe7, 0xf4, 0xa0, 0xa9, 0x45, 0x5a, 0x96, 0x4d,
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0xb8, 0x27, 0x8a, 0x84, 0x1e, 0x8c, 0x3, 0xe6
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}
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},
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{
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.guid = { }
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},
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};
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MODULE_DEVICE_TABLE(vmbus, id_table);
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/* The one and only one */
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static struct hv_driver util_drv = {
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.id_table = id_table,
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.probe = util_probe,
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.remove = util_remove,
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};
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static const struct pci_device_id __initconst
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hv_utils_pci_table[] __maybe_unused = {
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{ PCI_DEVICE(0x1414, 0x5353) }, /* Hyper-V emulated VGA controller */
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@ -264,7 +323,9 @@ static int __init init_hyperv_utils(void)
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hv_cb_utils[HV_KVP_MSG].callback = &hv_kvp_onchannelcallback;
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return 0;
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util_drv.driver.name = driver_name;
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return vmbus_child_driver_register(&util_drv.driver);
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}
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static void exit_hyperv_utils(void)
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@ -296,6 +357,7 @@ static void exit_hyperv_utils(void)
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kfree(shut_txf_buf);
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kfree(time_txf_buf);
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kfree(hbeat_txf_buf);
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vmbus_child_driver_unregister(&util_drv.driver);
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}
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module_init(init_hyperv_utils);
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