/* * QEMU ISA IPMI BT emulation * * Copyright (c) 2015 Corey Minyard, MontaVista Software, LLC * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "qemu/osdep.h" #include "qemu/log.h" #include "qemu/module.h" #include "qapi/error.h" #include "hw/irq.h" #include "hw/ipmi/ipmi_bt.h" #include "hw/isa/isa.h" #include "hw/qdev-properties.h" #include "migration/vmstate.h" #include "qom/object.h" #define TYPE_ISA_IPMI_BT "isa-ipmi-bt" typedef struct ISAIPMIBTDevice ISAIPMIBTDevice; DECLARE_INSTANCE_CHECKER(ISAIPMIBTDevice, ISA_IPMI_BT, TYPE_ISA_IPMI_BT) struct ISAIPMIBTDevice { ISADevice dev; int32_t isairq; qemu_irq irq; IPMIBT bt; uint32_t uuid; }; static void isa_ipmi_bt_get_fwinfo(struct IPMIInterface *ii, IPMIFwInfo *info) { ISAIPMIBTDevice *iib = ISA_IPMI_BT(ii); ipmi_bt_get_fwinfo(&iib->bt, info); info->interrupt_number = iib->isairq; info->i2c_slave_address = iib->bt.bmc->slave_addr; info->uuid = iib->uuid; } static void isa_ipmi_bt_raise_irq(IPMIBT *ib) { ISAIPMIBTDevice *iib = ib->opaque; qemu_irq_raise(iib->irq); } static void isa_ipmi_bt_lower_irq(IPMIBT *ib) { ISAIPMIBTDevice *iib = ib->opaque; qemu_irq_lower(iib->irq); } static void isa_ipmi_bt_realize(DeviceState *dev, Error **errp) { Error *err = NULL; ISADevice *isadev = ISA_DEVICE(dev); ISAIPMIBTDevice *iib = ISA_IPMI_BT(dev); IPMIInterface *ii = IPMI_INTERFACE(dev); IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii); if (!iib->bt.bmc) { error_setg(errp, "IPMI device requires a bmc attribute to be set"); return; } iib->uuid = ipmi_next_uuid(); iib->bt.bmc->intf = ii; iib->bt.opaque = iib; iic->init(ii, 0, &err); if (err) { error_propagate(errp, err); return; } if (iib->isairq > 0) { isa_init_irq(isadev, &iib->irq, iib->isairq); iib->bt.use_irq = 1; iib->bt.raise_irq = isa_ipmi_bt_raise_irq; iib->bt.lower_irq = isa_ipmi_bt_lower_irq; } qdev_set_legacy_instance_id(dev, iib->bt.io_base, iib->bt.io_length); isa_register_ioport(isadev, &iib->bt.io, iib->bt.io_base); } static const VMStateDescription vmstate_ISAIPMIBTDevice = { .name = TYPE_IPMI_INTERFACE_PREFIX "isa-bt", .version_id = 2, .minimum_version_id = 2, /* * Version 1 had messed up the array transfer, it's not even usable * because it used VMSTATE_VBUFFER_UINT32, but it did not transfer * the buffer length, so random things would happen. */ .fields = (VMStateField[]) { VMSTATE_STRUCT(bt, ISAIPMIBTDevice, 1, vmstate_IPMIBT, IPMIBT), VMSTATE_END_OF_LIST() } }; static void isa_ipmi_bt_init(Object *obj) { ISAIPMIBTDevice *iib = ISA_IPMI_BT(obj); ipmi_bmc_find_and_link(obj, (Object **) &iib->bt.bmc); vmstate_register(NULL, 0, &vmstate_ISAIPMIBTDevice, iib); } static void *isa_ipmi_bt_get_backend_data(IPMIInterface *ii) { ISAIPMIBTDevice *iib = ISA_IPMI_BT(ii); return &iib->bt; } static Property ipmi_isa_properties[] = { DEFINE_PROP_UINT32("ioport", ISAIPMIBTDevice, bt.io_base, 0xe4), DEFINE_PROP_INT32("irq", ISAIPMIBTDevice, isairq, 5), DEFINE_PROP_END_OF_LIST(), }; static void isa_ipmi_bt_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); IPMIInterfaceClass *iic = IPMI_INTERFACE_CLASS(oc); dc->realize = isa_ipmi_bt_realize; device_class_set_props(dc, ipmi_isa_properties); iic->get_backend_data = isa_ipmi_bt_get_backend_data; ipmi_bt_class_init(iic); iic->get_fwinfo = isa_ipmi_bt_get_fwinfo; } static const TypeInfo isa_ipmi_bt_info = { .name = TYPE_ISA_IPMI_BT, .parent = TYPE_ISA_DEVICE, .instance_size = sizeof(ISAIPMIBTDevice), .instance_init = isa_ipmi_bt_init, .class_init = isa_ipmi_bt_class_init, .interfaces = (InterfaceInfo[]) { { TYPE_IPMI_INTERFACE }, { } } }; static void ipmi_register_types(void) { type_register_static(&isa_ipmi_bt_info); } type_init(ipmi_register_types)