#ifndef QEMU_PCI_H #define QEMU_PCI_H #include "qemu-common.h" #include "qdev.h" #include "memory.h" #include "dma.h" /* PCI includes legacy ISA access. */ #include "isa.h" #include "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 "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 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; uint8_t type; MemoryRegion *memory; MemoryRegion *address_space; } 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 /* 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), }; #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 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; 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; 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. */ MemoryRegion msix_mmio; /* Reference-count for entries actually in use by driver. */ unsigned *msix_entry_used; /* Region including the MSI-X table */ uint32_t msix_bar_size; /* 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; /* Location of option rom */ char *romfile; bool has_rom; MemoryRegion rom; uint32_t rom_bar; }; 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 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); 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_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); 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); int pci_find_domain(const PCIBus *bus); PCIBus *pci_find_bus(PCIBus *bus, int bus_num); 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_parse_devaddr(const char *addr, int *domp, int *busp, unsigned int *slotp, unsigned int *funcp); int pci_read_devaddr(Monitor *mon, const char *addr, int *domp, int *busp, unsigned *slotp); void pci_device_deassert_intx(PCIDevice *dev); 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; } 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 int pci_dma_rw(PCIDevice *dev, dma_addr_t addr, void *buf, dma_addr_t len, DMADirection dir) { cpu_physical_memory_rw(addr, buf, len, dir == DMA_DIRECTION_FROM_DEVICE); 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##_phys(addr); \ } \ static inline void st##_s##_pci_dma(PCIDevice *dev, \ dma_addr_t addr, uint##_bits##_t val) \ { \ st##_s##_phys(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) { target_phys_addr_t len = *plen; void *buf; buf = cpu_physical_memory_map(addr, &len, dir == DMA_DIRECTION_FROM_DEVICE); *plen = len; return buf; } static inline void pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len, DMADirection dir, dma_addr_t access_len) { cpu_physical_memory_unmap(buffer, len, dir == DMA_DIRECTION_FROM_DEVICE, access_len); } static inline void pci_dma_sglist_init(QEMUSGList *qsg, PCIDevice *dev, int alloc_hint) { qemu_sglist_init(qsg, alloc_hint); } 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