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hv_kvp.c
(24.47 KB)
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hv_kvp.h
(7.07 KB)
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hv_snapshot.c
(29.64 KB)
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hv_snapshot.h
(2 KB)
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hv_utilreg.h
(2.74 KB)
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unicode.h
(5.25 KB)
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vmbus_heartbeat.c
(4.21 KB)
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vmbus_ic.c
(8.19 KB)
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vmbus_icreg.h
(4.2 KB)
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vmbus_icvar.h
(2.26 KB)
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vmbus_shutdown.c
(4.59 KB)
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vmbus_timesync.c
(7.09 KB)
Editing: vmbus_heartbeat.c
/*- * Copyright (c) 2014,2016 Microsoft Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/bus.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/systm.h> #include <dev/hyperv/include/hyperv.h> #include <dev/hyperv/include/vmbus.h> #include <dev/hyperv/utilities/vmbus_icreg.h> #include <dev/hyperv/utilities/vmbus_icvar.h> #define VMBUS_HEARTBEAT_FWVER_MAJOR 3 #define VMBUS_HEARTBEAT_FWVER \ VMBUS_IC_VERSION(VMBUS_HEARTBEAT_FWVER_MAJOR, 0) #define VMBUS_HEARTBEAT_MSGVER_MAJOR 3 #define VMBUS_HEARTBEAT_MSGVER \ VMBUS_IC_VERSION(VMBUS_HEARTBEAT_MSGVER_MAJOR, 0) static int vmbus_heartbeat_probe(device_t); static int vmbus_heartbeat_attach(device_t); static const struct vmbus_ic_desc vmbus_heartbeat_descs[] = { { .ic_guid = { .hv_guid = { 0x39, 0x4f, 0x16, 0x57, 0x15, 0x91, 0x78, 0x4e, 0xab, 0x55, 0x38, 0x2f, 0x3b, 0xd5, 0x42, 0x2d} }, .ic_desc = "Hyper-V Heartbeat" }, VMBUS_IC_DESC_END }; static device_method_t vmbus_heartbeat_methods[] = { /* Device interface */ DEVMETHOD(device_probe, vmbus_heartbeat_probe), DEVMETHOD(device_attach, vmbus_heartbeat_attach), DEVMETHOD(device_detach, vmbus_ic_detach), DEVMETHOD_END }; static driver_t vmbus_heartbeat_driver = { "hvheartbeat", vmbus_heartbeat_methods, sizeof(struct vmbus_ic_softc) }; static devclass_t vmbus_heartbeat_devclass; DRIVER_MODULE(hv_heartbeat, vmbus, vmbus_heartbeat_driver, vmbus_heartbeat_devclass, NULL, NULL); MODULE_VERSION(hv_heartbeat, 1); MODULE_DEPEND(hv_heartbeat, vmbus, 1, 1, 1); static void vmbus_heartbeat_cb(struct vmbus_channel *chan, void *xsc) { struct vmbus_ic_softc *sc = xsc; struct vmbus_icmsg_hdr *hdr; int dlen, error; uint64_t xactid; void *data; /* * Receive request. */ data = sc->ic_buf; dlen = sc->ic_buflen; error = vmbus_chan_recv(chan, data, &dlen, &xactid); KASSERT(error != ENOBUFS, ("icbuf is not large enough")); if (error) return; if (dlen < sizeof(*hdr)) { device_printf(sc->ic_dev, "invalid data len %d\n", dlen); return; } hdr = data; /* * Update request, which will be echoed back as response. */ switch (hdr->ic_type) { case VMBUS_ICMSG_TYPE_NEGOTIATE: error = vmbus_ic_negomsg(sc, data, &dlen, VMBUS_HEARTBEAT_FWVER, VMBUS_HEARTBEAT_MSGVER); if (error) return; break; case VMBUS_ICMSG_TYPE_HEARTBEAT: /* Only ic_seq is a must */ if (dlen < VMBUS_ICMSG_HEARTBEAT_SIZE_MIN) { device_printf(sc->ic_dev, "invalid heartbeat len %d\n", dlen); return; } ((struct vmbus_icmsg_heartbeat *)data)->ic_seq++; break; default: device_printf(sc->ic_dev, "got 0x%08x icmsg\n", hdr->ic_type); break; } /* * Send response by echoing the request back. */ vmbus_ic_sendresp(sc, chan, data, dlen, xactid); } static int vmbus_heartbeat_probe(device_t dev) { return (vmbus_ic_probe(dev, vmbus_heartbeat_descs)); } static int vmbus_heartbeat_attach(device_t dev) { return (vmbus_ic_attach(dev, vmbus_heartbeat_cb)); }
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