4 #include "qemu-common.h"
10 /* PCI includes legacy ISA access. */
17 #define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
18 #define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
19 #define PCI_FUNC(devfn) ((devfn) & 0x07)
20 #define PCI_SLOT_MAX 32
21 #define PCI_FUNC_MAX 8
23 /* Class, Vendor and Device IDs from Linux's pci_ids.h */
26 /* QEMU-specific Vendor and Device ID definitions */
29 #define PCI_DEVICE_ID_IBM_440GX 0x027f
30 #define PCI_DEVICE_ID_IBM_OPENPIC2 0xffff
32 /* Hitachi (0x1054) */
33 #define PCI_VENDOR_ID_HITACHI 0x1054
34 #define PCI_DEVICE_ID_HITACHI_SH7751R 0x350e
37 #define PCI_DEVICE_ID_APPLE_343S1201 0x0010
38 #define PCI_DEVICE_ID_APPLE_UNI_N_I_PCI 0x001e
39 #define PCI_DEVICE_ID_APPLE_UNI_N_PCI 0x001f
40 #define PCI_DEVICE_ID_APPLE_UNI_N_KEYL 0x0022
41 #define PCI_DEVICE_ID_APPLE_IPID_USB 0x003f
43 /* Realtek (0x10ec) */
44 #define PCI_DEVICE_ID_REALTEK_8029 0x8029
47 #define PCI_DEVICE_ID_XILINX_XC2VP30 0x0300
49 /* Marvell (0x11ab) */
50 #define PCI_DEVICE_ID_MARVELL_GT6412X 0x4620
52 /* QEMU/Bochs VGA (0x1234) */
53 #define PCI_VENDOR_ID_QEMU 0x1234
54 #define PCI_DEVICE_ID_QEMU_VGA 0x1111
57 #define PCI_VENDOR_ID_VMWARE 0x15ad
58 #define PCI_DEVICE_ID_VMWARE_SVGA2 0x0405
59 #define PCI_DEVICE_ID_VMWARE_SVGA 0x0710
60 #define PCI_DEVICE_ID_VMWARE_NET 0x0720
61 #define PCI_DEVICE_ID_VMWARE_SCSI 0x0730
62 #define PCI_DEVICE_ID_VMWARE_IDE 0x1729
65 #define PCI_DEVICE_ID_INTEL_82551IT 0x1209
66 #define PCI_DEVICE_ID_INTEL_82557 0x1229
67 #define PCI_DEVICE_ID_INTEL_82801IR 0x2922
69 /* Red Hat / Qumranet (for QEMU) -- see pci-ids.txt */
70 #define PCI_VENDOR_ID_REDHAT_QUMRANET 0x1af4
71 #define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4
72 #define PCI_SUBDEVICE_ID_QEMU 0x1100
74 #define PCI_DEVICE_ID_VIRTIO_NET 0x1000
75 #define PCI_DEVICE_ID_VIRTIO_BLOCK 0x1001
76 #define PCI_DEVICE_ID_VIRTIO_BALLOON 0x1002
77 #define PCI_DEVICE_ID_VIRTIO_CONSOLE 0x1003
79 #define FMT_PCIBUS PRIx64
81 typedef void PCIConfigWriteFunc(PCIDevice *pci_dev,
82 uint32_t address, uint32_t data, int len);
83 typedef uint32_t PCIConfigReadFunc(PCIDevice *pci_dev,
84 uint32_t address, int len);
85 typedef void PCIMapIORegionFunc(PCIDevice *pci_dev, int region_num,
86 pcibus_t addr, pcibus_t size, int type);
87 typedef int PCIUnregisterFunc(PCIDevice *pci_dev);
89 typedef struct PCIIORegion {
90 pcibus_t addr; /* current PCI mapping address. -1 means not mapped */
91 #define PCI_BAR_UNMAPPED (~(pcibus_t)0)
95 MemoryRegion *address_space;
98 #define PCI_ROM_SLOT 6
99 #define PCI_NUM_REGIONS 7
101 #include "pci_regs.h"
103 /* PCI HEADER_TYPE */
104 #define PCI_HEADER_TYPE_MULTI_FUNCTION 0x80
106 /* Size of the standard PCI config header */
107 #define PCI_CONFIG_HEADER_SIZE 0x40
108 /* Size of the standard PCI config space */
109 #define PCI_CONFIG_SPACE_SIZE 0x100
110 /* Size of the standart PCIe config space: 4KB */
111 #define PCIE_CONFIG_SPACE_SIZE 0x1000
113 #define PCI_NUM_PINS 4 /* A-D */
115 /* Bits in cap_present field. */
117 QEMU_PCI_CAP_MSI = 0x1,
118 QEMU_PCI_CAP_MSIX = 0x2,
119 QEMU_PCI_CAP_EXPRESS = 0x4,
121 /* multifunction capable device */
122 #define QEMU_PCI_CAP_MULTIFUNCTION_BITNR 3
123 QEMU_PCI_CAP_MULTIFUNCTION = (1 << QEMU_PCI_CAP_MULTIFUNCTION_BITNR),
125 /* command register SERR bit enabled */
126 #define QEMU_PCI_CAP_SERR_BITNR 4
127 QEMU_PCI_CAP_SERR = (1 << QEMU_PCI_CAP_SERR_BITNR),
132 /* PCI config space */
135 /* Used to enable config checks on load. Note that writable bits are
136 * never checked even if set in cmask. */
139 /* Used to implement R/W bytes */
142 /* Used to implement RW1C(Write 1 to Clear) bytes */
145 /* Used to allocate config space for capabilities. */
148 /* the following fields are read only */
152 PCIIORegion io_regions[PCI_NUM_REGIONS];
154 /* do not access the following fields */
155 PCIConfigReadFunc *config_read;
156 PCIConfigWriteFunc *config_write;
158 /* IRQ objects for the INTA-INTD pins. */
161 /* Current IRQ levels. Used internally by the generic PCI code. */
164 /* Capability bits */
165 uint32_t cap_present;
167 /* Offset of MSI-X capability in config space */
173 /* Space to store MSIX table */
174 uint8_t *msix_table_page;
175 /* MMIO index used to map MSIX table and pending bit entries. */
176 MemoryRegion msix_mmio;
177 /* Reference-count for entries actually in use by driver. */
178 unsigned *msix_entry_used;
179 /* Region including the MSI-X table */
180 uint32_t msix_bar_size;
181 /* Version id needed for VMState */
184 /* Offset of MSI capability in config space */
188 PCIExpressDevice exp;
190 /* Location of option rom */
197 PCIDevice *pci_register_device(PCIBus *bus, const char *name,
198 int instance_size, int devfn,
199 PCIConfigReadFunc *config_read,
200 PCIConfigWriteFunc *config_write);
202 void pci_register_bar(PCIDevice *pci_dev, int region_num,
203 uint8_t attr, MemoryRegion *memory);
204 pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num);
206 int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
207 uint8_t offset, uint8_t size);
209 void pci_del_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
211 uint8_t pci_find_capability(PCIDevice *pci_dev, uint8_t cap_id);
214 uint32_t pci_default_read_config(PCIDevice *d,
215 uint32_t address, int len);
216 void pci_default_write_config(PCIDevice *d,
217 uint32_t address, uint32_t val, int len);
218 void pci_device_save(PCIDevice *s, QEMUFile *f);
219 int pci_device_load(PCIDevice *s, QEMUFile *f);
220 MemoryRegion *pci_address_space(PCIDevice *dev);
221 MemoryRegion *pci_address_space_io(PCIDevice *dev);
223 typedef void (*pci_set_irq_fn)(void *opaque, int irq_num, int level);
224 typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num);
227 PCI_HOTPLUG_DISABLED,
229 PCI_COLDPLUG_ENABLED,
232 typedef int (*pci_hotplug_fn)(DeviceState *qdev, PCIDevice *pci_dev,
233 PCIHotplugState state);
234 void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
236 MemoryRegion *address_space_mem,
237 MemoryRegion *address_space_io,
239 PCIBus *pci_bus_new(DeviceState *parent, const char *name,
240 MemoryRegion *address_space_mem,
241 MemoryRegion *address_space_io,
243 void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
244 void *irq_opaque, int nirq);
245 int pci_bus_get_irq_level(PCIBus *bus, int irq_num);
246 void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug, DeviceState *dev);
247 PCIBus *pci_register_bus(DeviceState *parent, const char *name,
248 pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
250 MemoryRegion *address_space_mem,
251 MemoryRegion *address_space_io,
252 uint8_t devfn_min, int nirq);
253 void pci_device_reset(PCIDevice *dev);
254 void pci_bus_reset(PCIBus *bus);
256 PCIDevice *pci_nic_init(NICInfo *nd, const char *default_model,
257 const char *default_devaddr);
258 PCIDevice *pci_nic_init_nofail(NICInfo *nd, const char *default_model,
259 const char *default_devaddr);
260 int pci_bus_num(PCIBus *s);
261 void pci_for_each_device(PCIBus *bus, int bus_num, void (*fn)(PCIBus *bus, PCIDevice *d));
262 PCIBus *pci_find_root_bus(int domain);
263 int pci_find_domain(const PCIBus *bus);
264 PCIBus *pci_find_bus(PCIBus *bus, int bus_num);
265 PCIDevice *pci_find_device(PCIBus *bus, int bus_num, uint8_t devfn);
266 int pci_qdev_find_device(const char *id, PCIDevice **pdev);
267 PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr);
269 int pci_parse_devaddr(const char *addr, int *domp, int *busp,
270 unsigned int *slotp, unsigned int *funcp);
271 int pci_read_devaddr(Monitor *mon, const char *addr, int *domp, int *busp,
274 void pci_device_deassert_intx(PCIDevice *dev);
277 pci_set_byte(uint8_t *config, uint8_t val)
282 static inline uint8_t
283 pci_get_byte(const uint8_t *config)
289 pci_set_word(uint8_t *config, uint16_t val)
291 cpu_to_le16wu((uint16_t *)config, val);
294 static inline uint16_t
295 pci_get_word(const uint8_t *config)
297 return le16_to_cpupu((const uint16_t *)config);
301 pci_set_long(uint8_t *config, uint32_t val)
303 cpu_to_le32wu((uint32_t *)config, val);
306 static inline uint32_t
307 pci_get_long(const uint8_t *config)
309 return le32_to_cpupu((const uint32_t *)config);
313 pci_set_quad(uint8_t *config, uint64_t val)
315 cpu_to_le64w((uint64_t *)config, val);
318 static inline uint64_t
319 pci_get_quad(const uint8_t *config)
321 return le64_to_cpup((const uint64_t *)config);
325 pci_config_set_vendor_id(uint8_t *pci_config, uint16_t val)
327 pci_set_word(&pci_config[PCI_VENDOR_ID], val);
331 pci_config_set_device_id(uint8_t *pci_config, uint16_t val)
333 pci_set_word(&pci_config[PCI_DEVICE_ID], val);
337 pci_config_set_revision(uint8_t *pci_config, uint8_t val)
339 pci_set_byte(&pci_config[PCI_REVISION_ID], val);
343 pci_config_set_class(uint8_t *pci_config, uint16_t val)
345 pci_set_word(&pci_config[PCI_CLASS_DEVICE], val);
349 pci_config_set_prog_interface(uint8_t *pci_config, uint8_t val)
351 pci_set_byte(&pci_config[PCI_CLASS_PROG], val);
355 pci_config_set_interrupt_pin(uint8_t *pci_config, uint8_t val)
357 pci_set_byte(&pci_config[PCI_INTERRUPT_PIN], val);
361 * helper functions to do bit mask operation on configuration space.
362 * Just to set bit, use test-and-set and discard returned value.
363 * Just to clear bit, use test-and-clear and discard returned value.
364 * NOTE: They aren't atomic.
366 static inline uint8_t
367 pci_byte_test_and_clear_mask(uint8_t *config, uint8_t mask)
369 uint8_t val = pci_get_byte(config);
370 pci_set_byte(config, val & ~mask);
374 static inline uint8_t
375 pci_byte_test_and_set_mask(uint8_t *config, uint8_t mask)
377 uint8_t val = pci_get_byte(config);
378 pci_set_byte(config, val | mask);
382 static inline uint16_t
383 pci_word_test_and_clear_mask(uint8_t *config, uint16_t mask)
385 uint16_t val = pci_get_word(config);
386 pci_set_word(config, val & ~mask);
390 static inline uint16_t
391 pci_word_test_and_set_mask(uint8_t *config, uint16_t mask)
393 uint16_t val = pci_get_word(config);
394 pci_set_word(config, val | mask);
398 static inline uint32_t
399 pci_long_test_and_clear_mask(uint8_t *config, uint32_t mask)
401 uint32_t val = pci_get_long(config);
402 pci_set_long(config, val & ~mask);
406 static inline uint32_t
407 pci_long_test_and_set_mask(uint8_t *config, uint32_t mask)
409 uint32_t val = pci_get_long(config);
410 pci_set_long(config, val | mask);
414 static inline uint64_t
415 pci_quad_test_and_clear_mask(uint8_t *config, uint64_t mask)
417 uint64_t val = pci_get_quad(config);
418 pci_set_quad(config, val & ~mask);
422 static inline uint64_t
423 pci_quad_test_and_set_mask(uint8_t *config, uint64_t mask)
425 uint64_t val = pci_get_quad(config);
426 pci_set_quad(config, val | mask);
430 typedef int (*pci_qdev_initfn)(PCIDevice *dev);
433 pci_qdev_initfn init;
434 PCIUnregisterFunc *exit;
435 PCIConfigReadFunc *config_read;
436 PCIConfigWriteFunc *config_write;
442 uint16_t subsystem_vendor_id; /* only for header type = 0 */
443 uint16_t subsystem_id; /* only for header type = 0 */
446 * pci-to-pci bridge or normal device.
447 * This doesn't mean pci host switch.
448 * When card bus bridge is supported, this would be enhanced.
453 int is_express; /* is this device pci express? */
455 /* device isn't hot-pluggable */
462 void pci_qdev_register(PCIDeviceInfo *info);
463 void pci_qdev_register_many(PCIDeviceInfo *info);
465 PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction,
467 PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn,
470 PCIDevice *pci_try_create_multifunction(PCIBus *bus, int devfn,
473 PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name);
474 PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name);
475 PCIDevice *pci_try_create(PCIBus *bus, int devfn, const char *name);
477 static inline int pci_is_express(const PCIDevice *d)
479 return d->cap_present & QEMU_PCI_CAP_EXPRESS;
482 static inline uint32_t pci_config_size(const PCIDevice *d)
484 return pci_is_express(d) ? PCIE_CONFIG_SPACE_SIZE : PCI_CONFIG_SPACE_SIZE;
487 /* DMA access functions */
488 static inline int pci_dma_rw(PCIDevice *dev, dma_addr_t addr,
489 void *buf, dma_addr_t len, DMADirection dir)
491 cpu_physical_memory_rw(addr, buf, len, dir == DMA_DIRECTION_FROM_DEVICE);
495 static inline int pci_dma_read(PCIDevice *dev, dma_addr_t addr,
496 void *buf, dma_addr_t len)
498 return pci_dma_rw(dev, addr, buf, len, DMA_DIRECTION_TO_DEVICE);
501 static inline int pci_dma_write(PCIDevice *dev, dma_addr_t addr,
502 const void *buf, dma_addr_t len)
504 return pci_dma_rw(dev, addr, (void *) buf, len, DMA_DIRECTION_FROM_DEVICE);
507 #define PCI_DMA_DEFINE_LDST(_l, _s, _bits) \
508 static inline uint##_bits##_t ld##_l##_pci_dma(PCIDevice *dev, \
511 return ld##_l##_phys(addr); \
513 static inline void st##_s##_pci_dma(PCIDevice *dev, \
514 dma_addr_t addr, uint##_bits##_t val) \
516 st##_s##_phys(addr, val); \
519 PCI_DMA_DEFINE_LDST(ub, b, 8);
520 PCI_DMA_DEFINE_LDST(uw_le, w_le, 16)
521 PCI_DMA_DEFINE_LDST(l_le, l_le, 32);
522 PCI_DMA_DEFINE_LDST(q_le, q_le, 64);
523 PCI_DMA_DEFINE_LDST(uw_be, w_be, 16)
524 PCI_DMA_DEFINE_LDST(l_be, l_be, 32);
525 PCI_DMA_DEFINE_LDST(q_be, q_be, 64);
527 #undef PCI_DMA_DEFINE_LDST
529 static inline void *pci_dma_map(PCIDevice *dev, dma_addr_t addr,
530 dma_addr_t *plen, DMADirection dir)
532 target_phys_addr_t len = *plen;
535 buf = cpu_physical_memory_map(addr, &len, dir == DMA_DIRECTION_FROM_DEVICE);
540 static inline void pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len,
541 DMADirection dir, dma_addr_t access_len)
543 cpu_physical_memory_unmap(buffer, len, dir == DMA_DIRECTION_FROM_DEVICE,
547 static inline void pci_dma_sglist_init(QEMUSGList *qsg, PCIDevice *dev,
550 qemu_sglist_init(qsg, alloc_hint);