cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

ccw-device.c (2301B)

      1/*
      2 * Common device infrastructure for devices in the virtual css
      3 *
      4 * Copyright 2016 IBM Corp.
      5 * Author(s): Jing Liu <liujbjl@linux.vnet.ibm.com>
      6 *
      7 * This work is licensed under the terms of the GNU GPL, version 2 or (at
      8 * your option) any later version. See the COPYING file in the top-level
      9 * directory.
     10 */
     11
     12#include "qemu/osdep.h"
     13#include "ccw-device.h"
     14#include "hw/qdev-properties.h"
     15#include "qemu/module.h"
     16
     17static void ccw_device_refill_ids(CcwDevice *dev)
     18{
     19    SubchDev *sch = dev->sch;
     20
     21    assert(sch);
     22
     23    dev->dev_id.cssid = sch->cssid;
     24    dev->dev_id.ssid = sch->ssid;
     25    dev->dev_id.devid = sch->devno;
     26    dev->dev_id.valid = true;
     27
     28    dev->subch_id.cssid = sch->cssid;
     29    dev->subch_id.ssid = sch->ssid;
     30    dev->subch_id.devid = sch->schid;
     31    dev->subch_id.valid = true;
     32}
     33
     34static void ccw_device_realize(CcwDevice *dev, Error **errp)
     35{
     36    ccw_device_refill_ids(dev);
     37}
     38
     39static Property ccw_device_properties[] = {
     40    DEFINE_PROP_CSS_DEV_ID("devno", CcwDevice, devno),
     41    DEFINE_PROP_CSS_DEV_ID_RO("dev_id", CcwDevice, dev_id),
     42    DEFINE_PROP_CSS_DEV_ID_RO("subch_id", CcwDevice, subch_id),
     43    DEFINE_PROP_END_OF_LIST(),
     44};
     45
     46static void ccw_device_reset(DeviceState *d)
     47{
     48    CcwDevice *ccw_dev = CCW_DEVICE(d);
     49
     50    css_reset_sch(ccw_dev->sch);
     51}
     52
     53static void ccw_device_class_init(ObjectClass *klass, void *data)
     54{
     55    DeviceClass *dc = DEVICE_CLASS(klass);
     56    CCWDeviceClass *k = CCW_DEVICE_CLASS(klass);
     57
     58    k->realize = ccw_device_realize;
     59    k->refill_ids = ccw_device_refill_ids;
     60    device_class_set_props(dc, ccw_device_properties);
     61    dc->reset = ccw_device_reset;
     62    dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
     63}
     64
     65const VMStateDescription vmstate_ccw_dev = {
     66    .name = "s390_ccw_dev",
     67    .version_id = 1,
     68    .minimum_version_id = 1,
     69    .fields = (VMStateField[]) {
     70        VMSTATE_STRUCT_POINTER(sch, CcwDevice, vmstate_subch_dev, SubchDev),
     71        VMSTATE_END_OF_LIST()
     72    }
     73};
     74
     75static const TypeInfo ccw_device_info = {
     76    .name = TYPE_CCW_DEVICE,
     77    .parent = TYPE_DEVICE,
     78    .instance_size = sizeof(CcwDevice),
     79    .class_size = sizeof(CCWDeviceClass),
     80    .class_init = ccw_device_class_init,
     81    .abstract = true,
     82};
     83
     84static void ccw_device_register(void)
     85{
     86    type_register_static(&ccw_device_info);
     87}
     88
     89type_init(ccw_device_register)