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

pvpanic-pci.c (2402B)

      1/*
      2 * QEMU simulated PCI pvpanic device.
      3 *
      4 * Copyright (C) 2020 Oracle
      5 *
      6 * Authors:
      7 *     Mihai Carabas <mihai.carabas@oracle.com>
      8 *
      9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
     10 * See the COPYING file in the top-level directory.
     11 *
     12 */
     13
     14#include "qemu/osdep.h"
     15#include "qemu/module.h"
     16#include "sysemu/runstate.h"
     17
     18#include "hw/nvram/fw_cfg.h"
     19#include "hw/qdev-properties.h"
     20#include "migration/vmstate.h"
     21#include "hw/misc/pvpanic.h"
     22#include "qom/object.h"
     23#include "hw/pci/pci.h"
     24
     25OBJECT_DECLARE_SIMPLE_TYPE(PVPanicPCIState, PVPANIC_PCI_DEVICE)
     26
     27/*
     28 * PVPanicPCIState for PCI device
     29 */
     30typedef struct PVPanicPCIState {
     31    PCIDevice dev;
     32    PVPanicState pvpanic;
     33} PVPanicPCIState;
     34
     35static const VMStateDescription vmstate_pvpanic_pci = {
     36    .name = "pvpanic-pci",
     37    .version_id = 1,
     38    .minimum_version_id = 1,
     39    .fields = (VMStateField[]) {
     40        VMSTATE_PCI_DEVICE(dev, PVPanicPCIState),
     41        VMSTATE_END_OF_LIST()
     42    }
     43};
     44
     45static void pvpanic_pci_realizefn(PCIDevice *dev, Error **errp)
     46{
     47    PVPanicPCIState *s = PVPANIC_PCI_DEVICE(dev);
     48    PVPanicState *ps = &s->pvpanic;
     49
     50    pvpanic_setup_io(&s->pvpanic, DEVICE(s), 2);
     51
     52    pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &ps->mr);
     53}
     54
     55static Property pvpanic_pci_properties[] = {
     56    DEFINE_PROP_UINT8("events", PVPanicPCIState, pvpanic.events, PVPANIC_PANICKED | PVPANIC_CRASHLOADED),
     57    DEFINE_PROP_END_OF_LIST(),
     58};
     59
     60static void pvpanic_pci_class_init(ObjectClass *klass, void *data)
     61{
     62    DeviceClass *dc = DEVICE_CLASS(klass);
     63    PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass);
     64
     65    device_class_set_props(dc, pvpanic_pci_properties);
     66
     67    pc->realize = pvpanic_pci_realizefn;
     68    pc->vendor_id = PCI_VENDOR_ID_REDHAT;
     69    pc->device_id = PCI_DEVICE_ID_REDHAT_PVPANIC;
     70    pc->revision = 1;
     71    pc->class_id = PCI_CLASS_SYSTEM_OTHER;
     72    dc->vmsd = &vmstate_pvpanic_pci;
     73
     74    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
     75}
     76
     77static TypeInfo pvpanic_pci_info = {
     78    .name          = TYPE_PVPANIC_PCI_DEVICE,
     79    .parent        = TYPE_PCI_DEVICE,
     80    .instance_size = sizeof(PVPanicPCIState),
     81    .class_init    = pvpanic_pci_class_init,
     82    .interfaces = (InterfaceInfo[]) {
     83        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
     84        { }
     85    }
     86};
     87
     88static void pvpanic_register_types(void)
     89{
     90    type_register_static(&pvpanic_pci_info);
     91}
     92
     93type_init(pvpanic_register_types);