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qemu-e2k/hw/pci/pci.h
Michael S. Tsirkin c759b24fae pci: fix path for local includes 
Include dependencies from pci core using the correct path.
This is required now that it's in the separate directory.
Need to check whether they can be minimized, for now,
keep the code as is.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-12-17 13:02:27 +02:00

685 lines
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#ifndef QEMU_PCI_H
#define QEMU_PCI_H
#include "qemu-common.h"
#include "hw/qdev.h"
#include "memory.h"
#include "dma.h"
/* PCI includes legacy ISA access. */
#include "hw/isa.h"
#include "hw/pci/pcie.h"
/* PCI bus */
#define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
#define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
#define PCI_FUNC(devfn) ((devfn) & 0x07)
#define PCI_SLOT_MAX 32
#define PCI_FUNC_MAX 8
/* Class, Vendor and Device IDs from Linux's pci_ids.h */
#include "hw/pci/pci_ids.h"
/* QEMU-specific Vendor and Device ID definitions */
/* IBM (0x1014) */
#define PCI_DEVICE_ID_IBM_440GX 0x027f
#define PCI_DEVICE_ID_IBM_OPENPIC2 0xffff
/* Hitachi (0x1054) */
#define PCI_VENDOR_ID_HITACHI 0x1054
#define PCI_DEVICE_ID_HITACHI_SH7751R 0x350e
/* Apple (0x106b) */
#define PCI_DEVICE_ID_APPLE_343S1201 0x0010
#define PCI_DEVICE_ID_APPLE_UNI_N_I_PCI 0x001e
#define PCI_DEVICE_ID_APPLE_UNI_N_PCI 0x001f
#define PCI_DEVICE_ID_APPLE_UNI_N_KEYL 0x0022
#define PCI_DEVICE_ID_APPLE_IPID_USB 0x003f
/* Realtek (0x10ec) */
#define PCI_DEVICE_ID_REALTEK_8029 0x8029
/* Xilinx (0x10ee) */
#define PCI_DEVICE_ID_XILINX_XC2VP30 0x0300
/* Marvell (0x11ab) */
#define PCI_DEVICE_ID_MARVELL_GT6412X 0x4620
/* QEMU/Bochs VGA (0x1234) */
#define PCI_VENDOR_ID_QEMU 0x1234
#define PCI_DEVICE_ID_QEMU_VGA 0x1111
/* VMWare (0x15ad) */
#define PCI_VENDOR_ID_VMWARE 0x15ad
#define PCI_DEVICE_ID_VMWARE_SVGA2 0x0405
#define PCI_DEVICE_ID_VMWARE_SVGA 0x0710
#define PCI_DEVICE_ID_VMWARE_NET 0x0720
#define PCI_DEVICE_ID_VMWARE_SCSI 0x0730
#define PCI_DEVICE_ID_VMWARE_IDE 0x1729
/* Intel (0x8086) */
#define PCI_DEVICE_ID_INTEL_82551IT 0x1209
#define PCI_DEVICE_ID_INTEL_82557 0x1229
#define PCI_DEVICE_ID_INTEL_82801IR 0x2922
/* Red Hat / Qumranet (for QEMU) -- see pci-ids.txt */
#define PCI_VENDOR_ID_REDHAT_QUMRANET 0x1af4
#define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4
#define PCI_SUBDEVICE_ID_QEMU 0x1100
#define PCI_DEVICE_ID_VIRTIO_NET 0x1000
#define PCI_DEVICE_ID_VIRTIO_BLOCK 0x1001
#define PCI_DEVICE_ID_VIRTIO_BALLOON 0x1002
#define PCI_DEVICE_ID_VIRTIO_CONSOLE 0x1003
#define PCI_DEVICE_ID_VIRTIO_SCSI 0x1004
#define PCI_DEVICE_ID_VIRTIO_RNG 0x1005
#define FMT_PCIBUS PRIx64
typedef void PCIConfigWriteFunc(PCIDevice *pci_dev,
uint32_t address, uint32_t data, int len);
typedef uint32_t PCIConfigReadFunc(PCIDevice *pci_dev,
uint32_t address, int len);
typedef void PCIMapIORegionFunc(PCIDevice *pci_dev, int region_num,
pcibus_t addr, pcibus_t size, int type);
typedef void PCIUnregisterFunc(PCIDevice *pci_dev);
typedef struct PCIIORegion {
pcibus_t addr; /* current PCI mapping address. -1 means not mapped */
#define PCI_BAR_UNMAPPED (~(pcibus_t)0)
pcibus_t size;
uint8_t type;
MemoryRegion *memory;
MemoryRegion *address_space;
} PCIIORegion;
#define PCI_ROM_SLOT 6
#define PCI_NUM_REGIONS 7
#include "hw/pci/pci_regs.h"
/* PCI HEADER_TYPE */
#define PCI_HEADER_TYPE_MULTI_FUNCTION 0x80
/* Size of the standard PCI config header */
#define PCI_CONFIG_HEADER_SIZE 0x40
/* Size of the standard PCI config space */
#define PCI_CONFIG_SPACE_SIZE 0x100
/* Size of the standart PCIe config space: 4KB */
#define PCIE_CONFIG_SPACE_SIZE 0x1000
#define PCI_NUM_PINS 4 /* A-D */
/* Bits in cap_present field. */
enum {
QEMU_PCI_CAP_MSI = 0x1,
QEMU_PCI_CAP_MSIX = 0x2,
QEMU_PCI_CAP_EXPRESS = 0x4,
/* multifunction capable device */
#define QEMU_PCI_CAP_MULTIFUNCTION_BITNR 3
QEMU_PCI_CAP_MULTIFUNCTION = (1 << QEMU_PCI_CAP_MULTIFUNCTION_BITNR),
/* command register SERR bit enabled */
#define QEMU_PCI_CAP_SERR_BITNR 4
QEMU_PCI_CAP_SERR = (1 << QEMU_PCI_CAP_SERR_BITNR),
/* Standard hot plug controller. */
#define QEMU_PCI_SHPC_BITNR 5
QEMU_PCI_CAP_SHPC = (1 << QEMU_PCI_SHPC_BITNR),
#define QEMU_PCI_SLOTID_BITNR 6
QEMU_PCI_CAP_SLOTID = (1 << QEMU_PCI_SLOTID_BITNR),
};
#define TYPE_PCI_DEVICE "pci-device"
#define PCI_DEVICE(obj) \
OBJECT_CHECK(PCIDevice, (obj), TYPE_PCI_DEVICE)
#define PCI_DEVICE_CLASS(klass) \
OBJECT_CLASS_CHECK(PCIDeviceClass, (klass), TYPE_PCI_DEVICE)
#define PCI_DEVICE_GET_CLASS(obj) \
OBJECT_GET_CLASS(PCIDeviceClass, (obj), TYPE_PCI_DEVICE)
typedef struct PCIINTxRoute {
enum {
PCI_INTX_ENABLED,
PCI_INTX_INVERTED,
PCI_INTX_DISABLED,
} mode;
int irq;
} PCIINTxRoute;
typedef struct PCIDeviceClass {
DeviceClass parent_class;
int (*init)(PCIDevice *dev);
PCIUnregisterFunc *exit;
PCIConfigReadFunc *config_read;
PCIConfigWriteFunc *config_write;
uint16_t vendor_id;
uint16_t device_id;
uint8_t revision;
uint16_t class_id;
uint16_t subsystem_vendor_id; /* only for header type = 0 */
uint16_t subsystem_id; /* only for header type = 0 */
/*
* pci-to-pci bridge or normal device.
* This doesn't mean pci host switch.
* When card bus bridge is supported, this would be enhanced.
*/
int is_bridge;
/* pcie stuff */
int is_express; /* is this device pci express? */
/* device isn't hot-pluggable */
int no_hotplug;
/* rom bar */
const char *romfile;
} PCIDeviceClass;
typedef void (*PCIINTxRoutingNotifier)(PCIDevice *dev);
typedef int (*MSIVectorUseNotifier)(PCIDevice *dev, unsigned int vector,
MSIMessage msg);
typedef void (*MSIVectorReleaseNotifier)(PCIDevice *dev, unsigned int vector);
struct PCIDevice {
DeviceState qdev;
/* PCI config space */
uint8_t *config;
/* Used to enable config checks on load. Note that writable bits are
* never checked even if set in cmask. */
uint8_t *cmask;
/* Used to implement R/W bytes */
uint8_t *wmask;
/* Used to implement RW1C(Write 1 to Clear) bytes */
uint8_t *w1cmask;
/* Used to allocate config space for capabilities. */
uint8_t *used;
/* the following fields are read only */
PCIBus *bus;
int32_t devfn;
char name[64];
PCIIORegion io_regions[PCI_NUM_REGIONS];
AddressSpace bus_master_as;
MemoryRegion bus_master_enable_region;
DMAContext *dma;
/* do not access the following fields */
PCIConfigReadFunc *config_read;
PCIConfigWriteFunc *config_write;
/* IRQ objects for the INTA-INTD pins. */
qemu_irq *irq;
/* Current IRQ levels. Used internally by the generic PCI code. */
uint8_t irq_state;
/* Capability bits */
uint32_t cap_present;
/* Offset of MSI-X capability in config space */
uint8_t msix_cap;
/* MSI-X entries */
int msix_entries_nr;
/* Space to store MSIX table & pending bit array */
uint8_t *msix_table;
uint8_t *msix_pba;
/* MemoryRegion container for msix exclusive BAR setup */
MemoryRegion msix_exclusive_bar;
/* Memory Regions for MSIX table and pending bit entries. */
MemoryRegion msix_table_mmio;
MemoryRegion msix_pba_mmio;
/* Reference-count for entries actually in use by driver. */
unsigned *msix_entry_used;
/* MSIX function mask set or MSIX disabled */
bool msix_function_masked;
/* Version id needed for VMState */
int32_t version_id;
/* Offset of MSI capability in config space */
uint8_t msi_cap;
/* PCI Express */
PCIExpressDevice exp;
/* SHPC */
SHPCDevice *shpc;
/* Location of option rom */
char *romfile;
bool has_rom;
MemoryRegion rom;
uint32_t rom_bar;
/* INTx routing notifier */
PCIINTxRoutingNotifier intx_routing_notifier;
/* MSI-X notifiers */
MSIVectorUseNotifier msix_vector_use_notifier;
MSIVectorReleaseNotifier msix_vector_release_notifier;
};
void pci_register_bar(PCIDevice *pci_dev, int region_num,
uint8_t attr, MemoryRegion *memory);
pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num);
int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
uint8_t offset, uint8_t size);
void pci_del_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
uint8_t pci_find_capability(PCIDevice *pci_dev, uint8_t cap_id);
uint32_t pci_default_read_config(PCIDevice *d,
uint32_t address, int len);
void pci_default_write_config(PCIDevice *d,
uint32_t address, uint32_t val, int len);
void pci_device_save(PCIDevice *s, QEMUFile *f);
int pci_device_load(PCIDevice *s, QEMUFile *f);
MemoryRegion *pci_address_space(PCIDevice *dev);
MemoryRegion *pci_address_space_io(PCIDevice *dev);
typedef void (*pci_set_irq_fn)(void *opaque, int irq_num, int level);
typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num);
typedef PCIINTxRoute (*pci_route_irq_fn)(void *opaque, int pin);
typedef enum {
PCI_HOTPLUG_DISABLED,
PCI_HOTPLUG_ENABLED,
PCI_COLDPLUG_ENABLED,
} PCIHotplugState;
typedef int (*pci_hotplug_fn)(DeviceState *qdev, PCIDevice *pci_dev,
PCIHotplugState state);
void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
const char *name,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io,
uint8_t devfn_min);
PCIBus *pci_bus_new(DeviceState *parent, const char *name,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io,
uint8_t devfn_min);
void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
void *irq_opaque, int nirq);
int pci_bus_get_irq_level(PCIBus *bus, int irq_num);
void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug, DeviceState *dev);
/* 0 <= pin <= 3 0 = INTA, 1 = INTB, 2 = INTC, 3 = INTD */
int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin);
PCIBus *pci_register_bus(DeviceState *parent, const char *name,
pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
void *irq_opaque,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io,
uint8_t devfn_min, int nirq);
void pci_bus_set_route_irq_fn(PCIBus *, pci_route_irq_fn);
PCIINTxRoute pci_device_route_intx_to_irq(PCIDevice *dev, int pin);
bool pci_intx_route_changed(PCIINTxRoute *old, PCIINTxRoute *new);
void pci_bus_fire_intx_routing_notifier(PCIBus *bus);
void pci_device_set_intx_routing_notifier(PCIDevice *dev,
PCIINTxRoutingNotifier notifier);
void pci_device_reset(PCIDevice *dev);
void pci_bus_reset(PCIBus *bus);
PCIDevice *pci_nic_init(NICInfo *nd, const char *default_model,
const char *default_devaddr);
PCIDevice *pci_nic_init_nofail(NICInfo *nd, const char *default_model,
const char *default_devaddr);
PCIDevice *pci_vga_init(PCIBus *bus);
int pci_bus_num(PCIBus *s);
void pci_for_each_device(PCIBus *bus, int bus_num,
void (*fn)(PCIBus *bus, PCIDevice *d, void *opaque),
void *opaque);
PCIBus *pci_find_root_bus(int domain);
int pci_find_domain(const PCIBus *bus);
PCIDevice *pci_find_device(PCIBus *bus, int bus_num, uint8_t devfn);
int pci_qdev_find_device(const char *id, PCIDevice **pdev);
PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr);
int pci_read_devaddr(Monitor *mon, const char *addr, int *domp, int *busp,
unsigned *slotp);
void pci_device_deassert_intx(PCIDevice *dev);
typedef DMAContext *(*PCIDMAContextFunc)(PCIBus *, void *, int);
void pci_setup_iommu(PCIBus *bus, PCIDMAContextFunc fn, void *opaque);
static inline void
pci_set_byte(uint8_t *config, uint8_t val)
{
*config = val;
}
static inline uint8_t
pci_get_byte(const uint8_t *config)
{
return *config;
}
static inline void
pci_set_word(uint8_t *config, uint16_t val)
{
cpu_to_le16wu((uint16_t *)config, val);
}
static inline uint16_t
pci_get_word(const uint8_t *config)
{
return le16_to_cpupu((const uint16_t *)config);
}
static inline void
pci_set_long(uint8_t *config, uint32_t val)
{
cpu_to_le32wu((uint32_t *)config, val);
}
static inline uint32_t
pci_get_long(const uint8_t *config)
{
return le32_to_cpupu((const uint32_t *)config);
}
static inline void
pci_set_quad(uint8_t *config, uint64_t val)
{
cpu_to_le64w((uint64_t *)config, val);
}
static inline uint64_t
pci_get_quad(const uint8_t *config)
{
return le64_to_cpup((const uint64_t *)config);
}
static inline void
pci_config_set_vendor_id(uint8_t *pci_config, uint16_t val)
{
pci_set_word(&pci_config[PCI_VENDOR_ID], val);
}
static inline void
pci_config_set_device_id(uint8_t *pci_config, uint16_t val)
{
pci_set_word(&pci_config[PCI_DEVICE_ID], val);
}
static inline void
pci_config_set_revision(uint8_t *pci_config, uint8_t val)
{
pci_set_byte(&pci_config[PCI_REVISION_ID], val);
}
static inline void
pci_config_set_class(uint8_t *pci_config, uint16_t val)
{
pci_set_word(&pci_config[PCI_CLASS_DEVICE], val);
}
static inline void
pci_config_set_prog_interface(uint8_t *pci_config, uint8_t val)
{
pci_set_byte(&pci_config[PCI_CLASS_PROG], val);
}
static inline void
pci_config_set_interrupt_pin(uint8_t *pci_config, uint8_t val)
{
pci_set_byte(&pci_config[PCI_INTERRUPT_PIN], val);
}
/*
* helper functions to do bit mask operation on configuration space.
* Just to set bit, use test-and-set and discard returned value.
* Just to clear bit, use test-and-clear and discard returned value.
* NOTE: They aren't atomic.
*/
static inline uint8_t
pci_byte_test_and_clear_mask(uint8_t *config, uint8_t mask)
{
uint8_t val = pci_get_byte(config);
pci_set_byte(config, val & ~mask);
return val & mask;
}
static inline uint8_t
pci_byte_test_and_set_mask(uint8_t *config, uint8_t mask)
{
uint8_t val = pci_get_byte(config);
pci_set_byte(config, val | mask);
return val & mask;
}
static inline uint16_t
pci_word_test_and_clear_mask(uint8_t *config, uint16_t mask)
{
uint16_t val = pci_get_word(config);
pci_set_word(config, val & ~mask);
return val & mask;
}
static inline uint16_t
pci_word_test_and_set_mask(uint8_t *config, uint16_t mask)
{
uint16_t val = pci_get_word(config);
pci_set_word(config, val | mask);
return val & mask;
}
static inline uint32_t
pci_long_test_and_clear_mask(uint8_t *config, uint32_t mask)
{
uint32_t val = pci_get_long(config);
pci_set_long(config, val & ~mask);
return val & mask;
}
static inline uint32_t
pci_long_test_and_set_mask(uint8_t *config, uint32_t mask)
{
uint32_t val = pci_get_long(config);
pci_set_long(config, val | mask);
return val & mask;
}
static inline uint64_t
pci_quad_test_and_clear_mask(uint8_t *config, uint64_t mask)
{
uint64_t val = pci_get_quad(config);
pci_set_quad(config, val & ~mask);
return val & mask;
}
static inline uint64_t
pci_quad_test_and_set_mask(uint8_t *config, uint64_t mask)
{
uint64_t val = pci_get_quad(config);
pci_set_quad(config, val | mask);
return val & mask;
}
/* Access a register specified by a mask */
static inline void
pci_set_byte_by_mask(uint8_t *config, uint8_t mask, uint8_t reg)
{
uint8_t val = pci_get_byte(config);
uint8_t rval = reg << (ffs(mask) - 1);
pci_set_byte(config, (~mask & val) | (mask & rval));
}
static inline uint8_t
pci_get_byte_by_mask(uint8_t *config, uint8_t mask)
{
uint8_t val = pci_get_byte(config);
return (val & mask) >> (ffs(mask) - 1);
}
static inline void
pci_set_word_by_mask(uint8_t *config, uint16_t mask, uint16_t reg)
{
uint16_t val = pci_get_word(config);
uint16_t rval = reg << (ffs(mask) - 1);
pci_set_word(config, (~mask & val) | (mask & rval));
}
static inline uint16_t
pci_get_word_by_mask(uint8_t *config, uint16_t mask)
{
uint16_t val = pci_get_word(config);
return (val & mask) >> (ffs(mask) - 1);
}
static inline void
pci_set_long_by_mask(uint8_t *config, uint32_t mask, uint32_t reg)
{
uint32_t val = pci_get_long(config);
uint32_t rval = reg << (ffs(mask) - 1);
pci_set_long(config, (~mask & val) | (mask & rval));
}
static inline uint32_t
pci_get_long_by_mask(uint8_t *config, uint32_t mask)
{
uint32_t val = pci_get_long(config);
return (val & mask) >> (ffs(mask) - 1);
}
static inline void
pci_set_quad_by_mask(uint8_t *config, uint64_t mask, uint64_t reg)
{
uint64_t val = pci_get_quad(config);
uint64_t rval = reg << (ffs(mask) - 1);
pci_set_quad(config, (~mask & val) | (mask & rval));
}
static inline uint64_t
pci_get_quad_by_mask(uint8_t *config, uint64_t mask)
{
uint64_t val = pci_get_quad(config);
return (val & mask) >> (ffs(mask) - 1);
}
PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction,
const char *name);
PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn,
bool multifunction,
const char *name);
PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name);
PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name);
static inline int pci_is_express(const PCIDevice *d)
{
return d->cap_present & QEMU_PCI_CAP_EXPRESS;
}
static inline uint32_t pci_config_size(const PCIDevice *d)
{
return pci_is_express(d) ? PCIE_CONFIG_SPACE_SIZE : PCI_CONFIG_SPACE_SIZE;
}
/* DMA access functions */
static inline DMAContext *pci_dma_context(PCIDevice *dev)
{
return dev->dma;
}
static inline int pci_dma_rw(PCIDevice *dev, dma_addr_t addr,
void *buf, dma_addr_t len, DMADirection dir)
{
dma_memory_rw(pci_dma_context(dev), addr, buf, len, dir);
return 0;
}
static inline int pci_dma_read(PCIDevice *dev, dma_addr_t addr,
void *buf, dma_addr_t len)
{
return pci_dma_rw(dev, addr, buf, len, DMA_DIRECTION_TO_DEVICE);
}
static inline int pci_dma_write(PCIDevice *dev, dma_addr_t addr,
const void *buf, dma_addr_t len)
{
return pci_dma_rw(dev, addr, (void *) buf, len, DMA_DIRECTION_FROM_DEVICE);
}
#define PCI_DMA_DEFINE_LDST(_l, _s, _bits) \
static inline uint##_bits##_t ld##_l##_pci_dma(PCIDevice *dev, \
dma_addr_t addr) \
{ \
return ld##_l##_dma(pci_dma_context(dev), addr); \
} \
static inline void st##_s##_pci_dma(PCIDevice *dev, \
dma_addr_t addr, uint##_bits##_t val) \
{ \
st##_s##_dma(pci_dma_context(dev), addr, val); \
}
PCI_DMA_DEFINE_LDST(ub, b, 8);
PCI_DMA_DEFINE_LDST(uw_le, w_le, 16)
PCI_DMA_DEFINE_LDST(l_le, l_le, 32);
PCI_DMA_DEFINE_LDST(q_le, q_le, 64);
PCI_DMA_DEFINE_LDST(uw_be, w_be, 16)
PCI_DMA_DEFINE_LDST(l_be, l_be, 32);
PCI_DMA_DEFINE_LDST(q_be, q_be, 64);
#undef PCI_DMA_DEFINE_LDST
static inline void *pci_dma_map(PCIDevice *dev, dma_addr_t addr,
dma_addr_t *plen, DMADirection dir)
{
void *buf;
buf = dma_memory_map(pci_dma_context(dev), addr, plen, dir);
return buf;
}
static inline void pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len,
DMADirection dir, dma_addr_t access_len)
{
dma_memory_unmap(pci_dma_context(dev), buffer, len, dir, access_len);
}
static inline void pci_dma_sglist_init(QEMUSGList *qsg, PCIDevice *dev,
int alloc_hint)
{
qemu_sglist_init(qsg, alloc_hint, pci_dma_context(dev));
}
extern const VMStateDescription vmstate_pci_device;
#define VMSTATE_PCI_DEVICE(_field, _state) { \
.name = (stringify(_field)), \
.size = sizeof(PCIDevice), \
.vmsd = &vmstate_pci_device, \
.flags = VMS_STRUCT, \
.offset = vmstate_offset_value(_state, _field, PCIDevice), \
}
#define VMSTATE_PCI_DEVICE_POINTER(_field, _state) { \
.name = (stringify(_field)), \
.size = sizeof(PCIDevice), \
.vmsd = &vmstate_pci_device, \
.flags = VMS_STRUCT|VMS_POINTER, \
.offset = vmstate_offset_pointer(_state, _field, PCIDevice), \
}
#endif
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