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/*
* Generic PCI Express Root Port emulation
*
* Copyright (C) 2017 Red Hat Inc
*
* Authors:
* Marcel Apfelbaum <marcel@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/pci/msix.h"
#include "hw/pci/pcie_port.h"
#define TYPE_GEN_PCIE_ROOT_PORT "pcie-root-port"
#define GEN_PCIE_ROOT_PORT_AER_OFFSET 0x100
#define GEN_PCIE_ROOT_PORT_MSIX_NR_VECTOR 1
static uint8_t gen_rp_aer_vector(const PCIDevice *d)
{
return 0;
}
static int gen_rp_interrupts_init(PCIDevice *d, Error **errp)
{
int rc;
rc = msix_init_exclusive_bar(d, GEN_PCIE_ROOT_PORT_MSIX_NR_VECTOR, 0, errp);
if (rc < 0) {
assert(rc == -ENOTSUP);
} else {
msix_vector_use(d, 0);
}
return rc;
}
static void gen_rp_interrupts_uninit(PCIDevice *d)
{
msix_uninit_exclusive_bar(d);
}
static const VMStateDescription vmstate_rp_dev = {
.name = "pcie-root-port",
.version_id = 1,
.minimum_version_id = 1,
.post_load = pcie_cap_slot_post_load,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(parent_obj.parent_obj.parent_obj, PCIESlot),
VMSTATE_STRUCT(parent_obj.parent_obj.parent_obj.exp.aer_log,
PCIESlot, 0, vmstate_pcie_aer_log, PCIEAERLog),
VMSTATE_END_OF_LIST()
}
};
static void gen_rp_dev_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
PCIERootPortClass *rpc = PCIE_ROOT_PORT_CLASS(klass);
k->vendor_id = PCI_VENDOR_ID_REDHAT;
k->device_id = PCI_DEVICE_ID_REDHAT_PCIE_RP;
dc->desc = "PCI Express Root Port";
dc->vmsd = &vmstate_rp_dev;
rpc->aer_vector = gen_rp_aer_vector;
rpc->interrupts_init = gen_rp_interrupts_init;
rpc->interrupts_uninit = gen_rp_interrupts_uninit;
rpc->aer_offset = GEN_PCIE_ROOT_PORT_AER_OFFSET;
}
static const TypeInfo gen_rp_dev_info = {
.name = TYPE_GEN_PCIE_ROOT_PORT,
.parent = TYPE_PCIE_ROOT_PORT,
.class_init = gen_rp_dev_class_init,
};
static void gen_rp_register_types(void)
{
type_register_static(&gen_rp_dev_info);
}
type_init(gen_rp_register_types)
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