#define QEMU_PCI_H
#include "qemu-common.h"
-#include "qobject.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"
/* 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_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 FMT_PCIBUS PRIx64
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 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;
- pcibus_t filtered_size;
uint8_t type;
- PCIMapIORegionFunc *map_func;
+ MemoryRegion *memory;
+ MemoryRegion *address_space;
} PCIIORegion;
#define PCI_ROM_SLOT 6
/* Bits in cap_present field. */
enum {
- QEMU_PCI_CAP_MSIX = 0x1,
- QEMU_PCI_CAP_EXPRESS = 0x2,
+ 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 writeable bits are
+ /* 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;
+ 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;
/* 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;
+ /* 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;
- /* 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;
+
+ /* SHPC */
+ SHPCDevice *shpc;
+
/* Location of option rom */
char *romfile;
- ram_addr_t rom_offset;
+ bool has_rom;
+ MemoryRegion rom;
uint32_t rom_bar;
-};
-PCIDevice *pci_register_device(PCIBus *bus, const char *name,
- int instance_size, int devfn,
- PCIConfigReadFunc *config_read,
- PCIConfigWriteFunc *config_write);
+ /* 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,
- pcibus_t size, int type,
- PCIMapIORegionFunc *map_func);
+ uint8_t attr, MemoryRegion *memory);
+pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num);
-int pci_add_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
-int pci_add_capability_at_offset(PCIDevice *pci_dev, uint8_t cap_id,
- uint8_t cap_offset, uint8_t cap_size);
+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);
-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 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 int (*pci_hotplug_fn)(DeviceState *qdev, PCIDevice *pci_dev, int state);
+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, int devfn_min);
-PCIBus *pci_bus_new(DeviceState *parent, const char *name, int devfn_min);
+ 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, int devfn_min, int nirq);
-
-void pci_bus_set_mem_base(PCIBus *bus, target_phys_addr_t base);
+ 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 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);
-PCIBus *pci_find_bus(PCIBus *bus, int bus_num);
-PCIDevice *pci_find_device(PCIBus *bus, int bus_num, int slot, int function);
+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 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);
+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)
pci_set_byte(&pci_config[PCI_INTERRUPT_PIN], val);
}
-typedef int (*pci_qdev_initfn)(PCIDevice *dev);
-typedef struct {
- DeviceInfo qdev;
- pci_qdev_initfn init;
- PCIUnregisterFunc *exit;
- PCIConfigReadFunc *config_read;
- PCIConfigWriteFunc *config_write;
+/*
+ * 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;
+}
- /* pci config header type */
- uint8_t header_type;
+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;
+}
- /* pcie stuff */
- int is_express; /* is this device pci express? */
+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;
+}
- /* rom bar */
- const char *romfile;
-} PCIDeviceInfo;
+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;
+}
-void pci_qdev_register(PCIDeviceInfo *info);
-void pci_qdev_register_many(PCIDeviceInfo *info);
+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);
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.
- */
+/* DMA access functions */
+static inline DMAContext *pci_dma_context(PCIDevice *dev)
+{
+ return dev->dma;
+}
-/* 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)
+static inline int pci_dma_rw(PCIDevice *dev, dma_addr_t addr,
+ void *buf, dma_addr_t len, DMADirection dir)
{
- return offset + len - 1;
+ dma_memory_rw(pci_dma_context(dev), addr, buf, len, dir);
+ return 0;
}
-/* Check whether a given range covers a given byte. */
-static inline int range_covers_byte(uint64_t offset, uint64_t len,
- uint64_t byte)
+static inline int pci_dma_read(PCIDevice *dev, dma_addr_t addr,
+ void *buf, dma_addr_t len)
{
- return offset <= byte && byte <= range_get_last(offset, len);
+ return pci_dma_rw(dev, addr, buf, len, DMA_DIRECTION_TO_DEVICE);
}
-/* 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)
+static inline int pci_dma_write(PCIDevice *dev, dma_addr_t addr,
+ const void *buf, dma_addr_t len)
{
- uint64_t last1 = range_get_last(first1, len1);
- uint64_t last2 = range_get_last(first2, len2);
+ 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), \
+}
- return !(last2 < first1 || last1 < first2);
+#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
projects / qemu.git / blobdiff