qemu-e2k/hw/pci.h

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#ifndef QEMU_PCI_H
#define QEMU_PCI_H
#include "qemu-common.h"
#include "qobject.h"
#include "qdev.h"
/* PCI includes legacy ISA access. */
#include "isa.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)
/* Class, Vendor and Device IDs from Linux's pci_ids.h */
#include "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
/* 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 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 int 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;
pcibus_t filtered_size;
uint8_t type;
PCIMapIORegionFunc *map_func;
} PCIIORegion;
#define PCI_ROM_SLOT 6
#define PCI_NUM_REGIONS 7
#include "pci_regs.h"
/* PCI HEADER_TYPE */
#define PCI_HEADER_TYPE_MULTI_FUNCTION 0x80
#define PCI_STATUS_RESERVED_MASK_LO (PCI_STATUS_RESERVED1 | \
PCI_STATUS_INT_STATUS | PCI_STATUS_CAPABILITIES | \
PCI_STATUS_66MHZ | PCI_STATUS_RESERVED2 | PCI_STATUS_FAST_BACK)
#define PCI_STATUS_RESERVED_MASK_HI (PCI_STATUS_DEVSEL >> 8)
/* Bits in the PCI Command Register (PCI 2.3 spec) */
#define PCI_COMMAND_RESERVED 0xf800
#define PCI_COMMAND_RESERVED_MASK_HI (PCI_COMMAND_RESERVED >> 8)
/* 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_MSIX = 0x1,
QEMU_PCI_CAP_EXPRESS = 0x2,
};
struct PCIDevice {
DeviceState qdev;
/* PCI config space */
uint8_t *config;
/* Used to enable config checks on load. Note that writeable bits are
* never checked even if set in cmask. */
uint8_t *cmask;
/* Used to implement R/W bytes */
uint8_t *wmask;
/* Used to allocate config space for capabilities. */
uint8_t *used;
/* the following fields are read only */
PCIBus *bus;
uint32_t devfn;
char name[64];
PCIIORegion io_regions[PCI_NUM_REGIONS];
/* 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 */
uint8_t *msix_table_page;
/* MMIO index used to map MSIX table and pending bit entries. */
int msix_mmio_index;
/* Reference-count for entries actually in use by driver. */
unsigned *msix_entry_used;
/* Region including the MSI-X table */
uint32_t msix_bar_size;
/* Version id needed for VMState */
int32_t version_id;
/* Location of option rom */
char *romfile;
ram_addr_t rom_offset;
uint32_t rom_bar;
};
PCIDevice *pci_register_device(PCIBus *bus, const char *name,
int instance_size, int devfn,
PCIConfigReadFunc *config_read,
PCIConfigWriteFunc *config_write);
void pci_register_bar(PCIDevice *pci_dev, int region_num,
pcibus_t size, int type,
PCIMapIORegionFunc *map_func);
int pci_add_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
void pci_del_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
void pci_reserve_capability(PCIDevice *pci_dev, uint8_t offset, uint8_t 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);
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 int (*pci_hotplug_fn)(PCIDevice *pci_dev, int state);
void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
const char *name, int devfn_min);
PCIBus *pci_bus_new(DeviceState *parent, const char *name, int 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);
void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug);
PCIBus *pci_register_bus(DeviceState *parent, const char *name,
pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
void *irq_opaque, int devfn_min, int nirq);
void pci_bus_set_mem_base(PCIBus *bus, target_phys_addr_t base);
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);
int pci_bus_num(PCIBus *s);
void pci_for_each_device(PCIBus *bus, int bus_num, void (*fn)(PCIBus *bus, PCIDevice *d));
PCIBus *pci_find_root_bus(int domain);
PCIBus *pci_find_bus(PCIBus *bus, int bus_num);
PCIDevice *pci_find_device(PCIBus *bus, int bus_num, int slot, int function);
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 do_pci_info_print(Monitor *mon, const QObject *data);
void do_pci_info(Monitor *mon, QObject **ret_data);
PCIBus *pci_bridge_init(PCIBus *bus, int devfn, uint16_t vid, uint16_t did,
pci_map_irq_fn map_irq, const char *name);
PCIDevice *pci_bridge_get_device(PCIBus *bus);
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_class(uint8_t *pci_config, uint16_t val)
{
pci_set_word(&pci_config[PCI_CLASS_DEVICE], val);
}
typedef int (*pci_qdev_initfn)(PCIDevice *dev);
typedef struct {
DeviceInfo qdev;
pci_qdev_initfn init;
PCIUnregisterFunc *exit;
PCIConfigReadFunc *config_read;
PCIConfigWriteFunc *config_write;
/* pci config header type */
uint8_t header_type;
/* pcie stuff */
int is_express; /* is this device pci express? */
/* rom bar */
const char *romfile;
} PCIDeviceInfo;
void pci_qdev_register(PCIDeviceInfo *info);
void pci_qdev_register_many(PCIDeviceInfo *info);
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(PCIDevice *d)
{
return d->cap_present & QEMU_PCI_CAP_EXPRESS;
}
static inline uint32_t pci_config_size(PCIDevice *d)
{
return pci_is_express(d) ? PCIE_CONFIG_SPACE_SIZE : PCI_CONFIG_SPACE_SIZE;
}
/* These are not pci specific. Should move into a separate header.
* Only pci.c uses them, so keep them here for now.
*/
/* Get last byte of a range from offset + length.
* Undefined for ranges that wrap around 0. */
static inline uint64_t range_get_last(uint64_t offset, uint64_t len)
{
return offset + len - 1;
}
/* Check whether a given range covers a given byte. */
static inline int range_covers_byte(uint64_t offset, uint64_t len,
uint64_t byte)
{
return offset <= byte && byte <= range_get_last(offset, len);
}
/* Check whether 2 given ranges overlap.
* Undefined if ranges that wrap around 0. */
static inline int ranges_overlap(uint64_t first1, uint64_t len1,
uint64_t first2, uint64_t len2)
{
uint64_t last1 = range_get_last(first1, len1);
uint64_t last2 = range_get_last(first2, len2);
return !(last2 < first1 || last1 < first2);
}
#endif