4 #include "qemu-common.h"
9 /* PCI includes legacy ISA access. */
16 #define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
17 #define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
18 #define PCI_FUNC(devfn) ((devfn) & 0x07)
19 #define PCI_FUNC_MAX 8
21 /* Class, Vendor and Device IDs from Linux's pci_ids.h */
24 /* QEMU-specific Vendor and Device ID definitions */
27 #define PCI_DEVICE_ID_IBM_440GX 0x027f
28 #define PCI_DEVICE_ID_IBM_OPENPIC2 0xffff
30 /* Hitachi (0x1054) */
31 #define PCI_VENDOR_ID_HITACHI 0x1054
32 #define PCI_DEVICE_ID_HITACHI_SH7751R 0x350e
35 #define PCI_DEVICE_ID_APPLE_343S1201 0x0010
36 #define PCI_DEVICE_ID_APPLE_UNI_N_I_PCI 0x001e
37 #define PCI_DEVICE_ID_APPLE_UNI_N_PCI 0x001f
38 #define PCI_DEVICE_ID_APPLE_UNI_N_KEYL 0x0022
39 #define PCI_DEVICE_ID_APPLE_IPID_USB 0x003f
41 /* Realtek (0x10ec) */
42 #define PCI_DEVICE_ID_REALTEK_8029 0x8029
45 #define PCI_DEVICE_ID_XILINX_XC2VP30 0x0300
47 /* Marvell (0x11ab) */
48 #define PCI_DEVICE_ID_MARVELL_GT6412X 0x4620
50 /* QEMU/Bochs VGA (0x1234) */
51 #define PCI_VENDOR_ID_QEMU 0x1234
52 #define PCI_DEVICE_ID_QEMU_VGA 0x1111
55 #define PCI_VENDOR_ID_VMWARE 0x15ad
56 #define PCI_DEVICE_ID_VMWARE_SVGA2 0x0405
57 #define PCI_DEVICE_ID_VMWARE_SVGA 0x0710
58 #define PCI_DEVICE_ID_VMWARE_NET 0x0720
59 #define PCI_DEVICE_ID_VMWARE_SCSI 0x0730
60 #define PCI_DEVICE_ID_VMWARE_IDE 0x1729
63 #define PCI_DEVICE_ID_INTEL_82551IT 0x1209
64 #define PCI_DEVICE_ID_INTEL_82557 0x1229
66 /* Red Hat / Qumranet (for QEMU) -- see pci-ids.txt */
67 #define PCI_VENDOR_ID_REDHAT_QUMRANET 0x1af4
68 #define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4
69 #define PCI_SUBDEVICE_ID_QEMU 0x1100
71 #define PCI_DEVICE_ID_VIRTIO_NET 0x1000
72 #define PCI_DEVICE_ID_VIRTIO_BLOCK 0x1001
73 #define PCI_DEVICE_ID_VIRTIO_BALLOON 0x1002
74 #define PCI_DEVICE_ID_VIRTIO_CONSOLE 0x1003
76 #define FMT_PCIBUS PRIx64
78 typedef void PCIConfigWriteFunc(PCIDevice *pci_dev,
79 uint32_t address, uint32_t data, int len);
80 typedef uint32_t PCIConfigReadFunc(PCIDevice *pci_dev,
81 uint32_t address, int len);
82 typedef void PCIMapIORegionFunc(PCIDevice *pci_dev, int region_num,
83 pcibus_t addr, pcibus_t size, int type);
84 typedef int PCIUnregisterFunc(PCIDevice *pci_dev);
86 typedef struct PCIIORegion {
87 pcibus_t addr; /* current PCI mapping address. -1 means not mapped */
88 #define PCI_BAR_UNMAPPED (~(pcibus_t)0)
90 pcibus_t filtered_size;
92 PCIMapIORegionFunc *map_func;
95 #define PCI_ROM_SLOT 6
96 #define PCI_NUM_REGIONS 7
100 /* PCI HEADER_TYPE */
101 #define PCI_HEADER_TYPE_MULTI_FUNCTION 0x80
103 /* Size of the standard PCI config header */
104 #define PCI_CONFIG_HEADER_SIZE 0x40
105 /* Size of the standard PCI config space */
106 #define PCI_CONFIG_SPACE_SIZE 0x100
107 /* Size of the standart PCIe config space: 4KB */
108 #define PCIE_CONFIG_SPACE_SIZE 0x1000
110 #define PCI_NUM_PINS 4 /* A-D */
112 /* Bits in cap_present field. */
114 QEMU_PCI_CAP_MSI = 0x1,
115 QEMU_PCI_CAP_MSIX = 0x2,
116 QEMU_PCI_CAP_EXPRESS = 0x4,
118 /* multifunction capable device */
119 #define QEMU_PCI_CAP_MULTIFUNCTION_BITNR 3
120 QEMU_PCI_CAP_MULTIFUNCTION = (1 << QEMU_PCI_CAP_MULTIFUNCTION_BITNR),
125 /* PCI config space */
128 /* Used to enable config checks on load. Note that writeable bits are
129 * never checked even if set in cmask. */
132 /* Used to implement R/W bytes */
135 /* Used to implement RW1C(Write 1 to Clear) bytes */
138 /* Used to allocate config space for capabilities. */
141 /* the following fields are read only */
145 PCIIORegion io_regions[PCI_NUM_REGIONS];
147 /* do not access the following fields */
148 PCIConfigReadFunc *config_read;
149 PCIConfigWriteFunc *config_write;
151 /* IRQ objects for the INTA-INTD pins. */
154 /* Current IRQ levels. Used internally by the generic PCI code. */
157 /* Capability bits */
158 uint32_t cap_present;
160 /* Offset of MSI-X capability in config space */
166 /* Space to store MSIX table */
167 uint8_t *msix_table_page;
168 /* MMIO index used to map MSIX table and pending bit entries. */
170 /* Reference-count for entries actually in use by driver. */
171 unsigned *msix_entry_used;
172 /* Region including the MSI-X table */
173 uint32_t msix_bar_size;
174 /* Version id needed for VMState */
177 /* Offset of MSI capability in config space */
181 PCIExpressDevice exp;
183 /* Location of option rom */
185 ram_addr_t rom_offset;
189 PCIDevice *pci_register_device(PCIBus *bus, const char *name,
190 int instance_size, int devfn,
191 PCIConfigReadFunc *config_read,
192 PCIConfigWriteFunc *config_write);
194 void pci_register_bar(PCIDevice *pci_dev, int region_num,
195 pcibus_t size, uint8_t type,
196 PCIMapIORegionFunc *map_func);
198 int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
199 uint8_t offset, uint8_t size);
201 void pci_del_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
203 void pci_reserve_capability(PCIDevice *pci_dev, uint8_t offset, uint8_t size);
205 uint8_t pci_find_capability(PCIDevice *pci_dev, uint8_t cap_id);
208 uint32_t pci_default_read_config(PCIDevice *d,
209 uint32_t address, int len);
210 void pci_default_write_config(PCIDevice *d,
211 uint32_t address, uint32_t val, int len);
212 void pci_device_save(PCIDevice *s, QEMUFile *f);
213 int pci_device_load(PCIDevice *s, QEMUFile *f);
215 typedef void (*pci_set_irq_fn)(void *opaque, int irq_num, int level);
216 typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num);
219 PCI_HOTPLUG_DISABLED,
221 PCI_COLDPLUG_ENABLED,
224 typedef int (*pci_hotplug_fn)(DeviceState *qdev, PCIDevice *pci_dev,
225 PCIHotplugState state);
226 void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
227 const char *name, int devfn_min);
228 PCIBus *pci_bus_new(DeviceState *parent, const char *name, int devfn_min);
229 void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
230 void *irq_opaque, int nirq);
231 void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug, DeviceState *dev);
232 PCIBus *pci_register_bus(DeviceState *parent, const char *name,
233 pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
234 void *irq_opaque, int devfn_min, int nirq);
236 void pci_bus_set_mem_base(PCIBus *bus, target_phys_addr_t base);
238 PCIDevice *pci_nic_init(NICInfo *nd, const char *default_model,
239 const char *default_devaddr);
240 PCIDevice *pci_nic_init_nofail(NICInfo *nd, const char *default_model,
241 const char *default_devaddr);
242 int pci_bus_num(PCIBus *s);
243 void pci_for_each_device(PCIBus *bus, int bus_num, void (*fn)(PCIBus *bus, PCIDevice *d));
244 PCIBus *pci_find_root_bus(int domain);
245 int pci_find_domain(const PCIBus *bus);
246 PCIBus *pci_find_bus(PCIBus *bus, int bus_num);
247 PCIDevice *pci_find_device(PCIBus *bus, int bus_num, int slot, int function);
248 PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr);
250 int pci_parse_devaddr(const char *addr, int *domp, int *busp,
251 unsigned int *slotp, unsigned int *funcp);
252 int pci_read_devaddr(Monitor *mon, const char *addr, int *domp, int *busp,
255 void do_pci_info_print(Monitor *mon, const QObject *data);
256 void do_pci_info(Monitor *mon, QObject **ret_data);
257 void pci_bridge_update_mappings(PCIBus *b);
259 bool pci_msi_enabled(PCIDevice *dev);
260 void pci_msi_notify(PCIDevice *dev, unsigned int vector);
263 pci_set_byte(uint8_t *config, uint8_t val)
268 static inline uint8_t
269 pci_get_byte(const uint8_t *config)
275 pci_set_word(uint8_t *config, uint16_t val)
277 cpu_to_le16wu((uint16_t *)config, val);
280 static inline uint16_t
281 pci_get_word(const uint8_t *config)
283 return le16_to_cpupu((const uint16_t *)config);
287 pci_set_long(uint8_t *config, uint32_t val)
289 cpu_to_le32wu((uint32_t *)config, val);
292 static inline uint32_t
293 pci_get_long(const uint8_t *config)
295 return le32_to_cpupu((const uint32_t *)config);
299 pci_set_quad(uint8_t *config, uint64_t val)
301 cpu_to_le64w((uint64_t *)config, val);
304 static inline uint64_t
305 pci_get_quad(const uint8_t *config)
307 return le64_to_cpup((const uint64_t *)config);
311 pci_config_set_vendor_id(uint8_t *pci_config, uint16_t val)
313 pci_set_word(&pci_config[PCI_VENDOR_ID], val);
317 pci_config_set_device_id(uint8_t *pci_config, uint16_t val)
319 pci_set_word(&pci_config[PCI_DEVICE_ID], val);
323 pci_config_set_revision(uint8_t *pci_config, uint8_t val)
325 pci_set_byte(&pci_config[PCI_REVISION_ID], val);
329 pci_config_set_class(uint8_t *pci_config, uint16_t val)
331 pci_set_word(&pci_config[PCI_CLASS_DEVICE], val);
335 pci_config_set_prog_interface(uint8_t *pci_config, uint8_t val)
337 pci_set_byte(&pci_config[PCI_CLASS_PROG], val);
341 pci_config_set_interrupt_pin(uint8_t *pci_config, uint8_t val)
343 pci_set_byte(&pci_config[PCI_INTERRUPT_PIN], val);
347 * helper functions to do bit mask operation on configuration space.
348 * Just to set bit, use test-and-set and discard returned value.
349 * Just to clear bit, use test-and-clear and discard returned value.
350 * NOTE: They aren't atomic.
352 static inline uint8_t
353 pci_byte_test_and_clear_mask(uint8_t *config, uint8_t mask)
355 uint8_t val = pci_get_byte(config);
356 pci_set_byte(config, val & ~mask);
360 static inline uint8_t
361 pci_byte_test_and_set_mask(uint8_t *config, uint8_t mask)
363 uint8_t val = pci_get_byte(config);
364 pci_set_byte(config, val | mask);
368 static inline uint16_t
369 pci_word_test_and_clear_mask(uint8_t *config, uint16_t mask)
371 uint16_t val = pci_get_word(config);
372 pci_set_word(config, val & ~mask);
376 static inline uint16_t
377 pci_word_test_and_set_mask(uint8_t *config, uint16_t mask)
379 uint16_t val = pci_get_word(config);
380 pci_set_word(config, val | mask);
384 static inline uint32_t
385 pci_long_test_and_clear_mask(uint8_t *config, uint32_t mask)
387 uint32_t val = pci_get_long(config);
388 pci_set_long(config, val & ~mask);
392 static inline uint32_t
393 pci_long_test_and_set_mask(uint8_t *config, uint32_t mask)
395 uint32_t val = pci_get_long(config);
396 pci_set_long(config, val | mask);
400 static inline uint64_t
401 pci_quad_test_and_clear_mask(uint8_t *config, uint64_t mask)
403 uint64_t val = pci_get_quad(config);
404 pci_set_quad(config, val & ~mask);
408 static inline uint64_t
409 pci_quad_test_and_set_mask(uint8_t *config, uint64_t mask)
411 uint64_t val = pci_get_quad(config);
412 pci_set_quad(config, val | mask);
416 typedef int (*pci_qdev_initfn)(PCIDevice *dev);
419 pci_qdev_initfn init;
420 PCIUnregisterFunc *exit;
421 PCIConfigReadFunc *config_read;
422 PCIConfigWriteFunc *config_write;
425 * pci-to-pci bridge or normal device.
426 * This doesn't mean pci host switch.
427 * When card bus bridge is supported, this would be enhanced.
432 int is_express; /* is this device pci express? */
438 void pci_qdev_register(PCIDeviceInfo *info);
439 void pci_qdev_register_many(PCIDeviceInfo *info);
441 PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction,
443 PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn,
446 PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name);
447 PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name);
449 static inline int pci_is_express(const PCIDevice *d)
451 return d->cap_present & QEMU_PCI_CAP_EXPRESS;
454 static inline uint32_t pci_config_size(const PCIDevice *d)
456 return pci_is_express(d) ? PCIE_CONFIG_SPACE_SIZE : PCI_CONFIG_SPACE_SIZE;