97526229da
No functional changes. I verified that the generated binary does not change. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Glauber Costa <glommer@gmail.com>
440 lines
14 KiB
C
440 lines
14 KiB
C
#ifndef QEMU_PCI_H
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#define QEMU_PCI_H
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#include "qemu-common.h"
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#include "qdev.h"
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/* PCI includes legacy ISA access. */
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#include "isa.h"
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/* PCI bus */
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extern target_phys_addr_t pci_mem_base;
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#define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
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#define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
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#define PCI_FUNC(devfn) ((devfn) & 0x07)
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/* Class, Vendor and Device IDs from Linux's pci_ids.h */
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#include "pci_ids.h"
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/* QEMU-specific Vendor and Device ID definitions */
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/* IBM (0x1014) */
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#define PCI_DEVICE_ID_IBM_440GX 0x027f
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#define PCI_DEVICE_ID_IBM_OPENPIC2 0xffff
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/* Hitachi (0x1054) */
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#define PCI_VENDOR_ID_HITACHI 0x1054
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#define PCI_DEVICE_ID_HITACHI_SH7751R 0x350e
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/* Apple (0x106b) */
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#define PCI_DEVICE_ID_APPLE_343S1201 0x0010
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#define PCI_DEVICE_ID_APPLE_UNI_N_I_PCI 0x001e
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#define PCI_DEVICE_ID_APPLE_UNI_N_PCI 0x001f
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#define PCI_DEVICE_ID_APPLE_UNI_N_KEYL 0x0022
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#define PCI_DEVICE_ID_APPLE_IPID_USB 0x003f
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/* Realtek (0x10ec) */
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#define PCI_DEVICE_ID_REALTEK_8029 0x8029
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/* Xilinx (0x10ee) */
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#define PCI_DEVICE_ID_XILINX_XC2VP30 0x0300
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/* Marvell (0x11ab) */
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#define PCI_DEVICE_ID_MARVELL_GT6412X 0x4620
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/* QEMU/Bochs VGA (0x1234) */
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#define PCI_VENDOR_ID_QEMU 0x1234
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#define PCI_DEVICE_ID_QEMU_VGA 0x1111
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/* VMWare (0x15ad) */
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#define PCI_VENDOR_ID_VMWARE 0x15ad
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#define PCI_DEVICE_ID_VMWARE_SVGA2 0x0405
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#define PCI_DEVICE_ID_VMWARE_SVGA 0x0710
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#define PCI_DEVICE_ID_VMWARE_NET 0x0720
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#define PCI_DEVICE_ID_VMWARE_SCSI 0x0730
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#define PCI_DEVICE_ID_VMWARE_IDE 0x1729
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/* Intel (0x8086) */
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#define PCI_DEVICE_ID_INTEL_82551IT 0x1209
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#define PCI_DEVICE_ID_INTEL_82557 0x1229
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/* Red Hat / Qumranet (for QEMU) -- see pci-ids.txt */
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#define PCI_VENDOR_ID_REDHAT_QUMRANET 0x1af4
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#define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4
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#define PCI_SUBDEVICE_ID_QEMU 0x1100
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#define PCI_DEVICE_ID_VIRTIO_NET 0x1000
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#define PCI_DEVICE_ID_VIRTIO_BLOCK 0x1001
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#define PCI_DEVICE_ID_VIRTIO_BALLOON 0x1002
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#define PCI_DEVICE_ID_VIRTIO_CONSOLE 0x1003
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typedef uint64_t pcibus_t;
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#define FMT_PCIBUS PRIx64
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typedef void PCIConfigWriteFunc(PCIDevice *pci_dev,
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uint32_t address, uint32_t data, int len);
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typedef uint32_t PCIConfigReadFunc(PCIDevice *pci_dev,
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uint32_t address, int len);
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typedef void PCIMapIORegionFunc(PCIDevice *pci_dev, int region_num,
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pcibus_t addr, pcibus_t size, int type);
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typedef int PCIUnregisterFunc(PCIDevice *pci_dev);
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typedef struct PCIIORegion {
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pcibus_t addr; /* current PCI mapping address. -1 means not mapped */
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#define PCI_BAR_UNMAPPED (~(pcibus_t)0)
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pcibus_t size;
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pcibus_t filtered_size;
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uint8_t type;
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PCIMapIORegionFunc *map_func;
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} PCIIORegion;
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#define PCI_ROM_SLOT 6
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#define PCI_NUM_REGIONS 7
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/* Declarations from linux/pci_regs.h */
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#define PCI_VENDOR_ID 0x00 /* 16 bits */
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#define PCI_DEVICE_ID 0x02 /* 16 bits */
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#define PCI_COMMAND 0x04 /* 16 bits */
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#define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */
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#define PCI_COMMAND_MEMORY 0x2 /* Enable response in Memory space */
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#define PCI_COMMAND_MASTER 0x4 /* Enable bus master */
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#define PCI_COMMAND_INTX_DISABLE 0x400 /* INTx Emulation Disable */
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#define PCI_STATUS 0x06 /* 16 bits */
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#define PCI_STATUS_INTERRUPT 0x08
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#define PCI_REVISION_ID 0x08 /* 8 bits */
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#define PCI_CLASS_PROG 0x09 /* Reg. Level Programming Interface */
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#define PCI_CLASS_DEVICE 0x0a /* Device class */
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#define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */
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#define PCI_LATENCY_TIMER 0x0d /* 8 bits */
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#define PCI_HEADER_TYPE 0x0e /* 8 bits */
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#define PCI_HEADER_TYPE_NORMAL 0
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#define PCI_HEADER_TYPE_BRIDGE 1
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#define PCI_HEADER_TYPE_CARDBUS 2
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#define PCI_HEADER_TYPE_MULTI_FUNCTION 0x80
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#define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */
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#define PCI_BASE_ADDRESS_SPACE_IO 0x01
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#define PCI_BASE_ADDRESS_SPACE_MEMORY 0x00
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#define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */
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#define PCI_BASE_ADDRESS_MEM_PREFETCH 0x08 /* prefetchable? */
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#define PCI_PRIMARY_BUS 0x18 /* Primary bus number */
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#define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */
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#define PCI_SUBORDINATE_BUS 0x1a /* Highest bus number behind the bridge */
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#define PCI_IO_BASE 0x1c /* I/O range behind the bridge */
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#define PCI_IO_LIMIT 0x1d
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#define PCI_IO_RANGE_TYPE_32 0x01
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#define PCI_IO_RANGE_MASK (~0x0fUL)
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#define PCI_SEC_STATUS 0x1e /* Secondary status register, only bit 14 used */
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#define PCI_MEMORY_BASE 0x20 /* Memory range behind */
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#define PCI_MEMORY_LIMIT 0x22
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#define PCI_MEMORY_RANGE_MASK (~0x0fUL)
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#define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */
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#define PCI_PREF_MEMORY_LIMIT 0x26
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#define PCI_PREF_RANGE_MASK (~0x0fUL)
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#define PCI_PREF_RANGE_TYPE_64 0x01
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#define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */
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#define PCI_PREF_LIMIT_UPPER32 0x2c
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#define PCI_SUBSYSTEM_VENDOR_ID 0x2c /* 16 bits */
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#define PCI_SUBSYSTEM_ID 0x2e /* 16 bits */
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#define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */
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#define PCI_ROM_ADDRESS_ENABLE 0x01
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#define PCI_IO_BASE_UPPER16 0x30 /* Upper half of I/O addresses */
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#define PCI_IO_LIMIT_UPPER16 0x32
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#define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */
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#define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */
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#define PCI_INTERRUPT_LINE 0x3c /* 8 bits */
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#define PCI_INTERRUPT_PIN 0x3d /* 8 bits */
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#define PCI_MIN_GNT 0x3e /* 8 bits */
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#define PCI_BRIDGE_CONTROL 0x3e
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#define PCI_MAX_LAT 0x3f /* 8 bits */
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/* Capability lists */
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#define PCI_CAP_LIST_ID 0 /* Capability ID */
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#define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */
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#define PCI_REVISION 0x08 /* obsolete, use PCI_REVISION_ID */
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#define PCI_SUBVENDOR_ID 0x2c /* obsolete, use PCI_SUBSYSTEM_VENDOR_ID */
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#define PCI_SUBDEVICE_ID 0x2e /* obsolete, use PCI_SUBSYSTEM_ID */
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/* Bits in the PCI Status Register (PCI 2.3 spec) */
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#define PCI_STATUS_RESERVED1 0x007
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#define PCI_STATUS_INT_STATUS 0x008
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#define PCI_STATUS_CAP_LIST 0x010
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#define PCI_STATUS_66MHZ 0x020
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#define PCI_STATUS_RESERVED2 0x040
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#define PCI_STATUS_FAST_BACK 0x080
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#define PCI_STATUS_DEVSEL_MEDIUM 0x200
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#define PCI_STATUS_DEVSEL 0x600
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#define PCI_STATUS_RESERVED_MASK_LO (PCI_STATUS_RESERVED1 | \
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PCI_STATUS_INT_STATUS | PCI_STATUS_CAPABILITIES | \
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PCI_STATUS_66MHZ | PCI_STATUS_RESERVED2 | PCI_STATUS_FAST_BACK)
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#define PCI_STATUS_RESERVED_MASK_HI (PCI_STATUS_DEVSEL >> 8)
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/* Bits in the PCI Command Register (PCI 2.3 spec) */
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#define PCI_COMMAND_RESERVED 0xf800
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#define PCI_COMMAND_RESERVED_MASK_HI (PCI_COMMAND_RESERVED >> 8)
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/* Size of the standard PCI config header */
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#define PCI_CONFIG_HEADER_SIZE 0x40
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/* Size of the standard PCI config space */
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#define PCI_CONFIG_SPACE_SIZE 0x100
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/* Size of the standart PCIe config space: 4KB */
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#define PCIE_CONFIG_SPACE_SIZE 0x1000
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#define PCI_NUM_PINS 4 /* A-D */
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/* Bits in cap_present field. */
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enum {
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QEMU_PCI_CAP_MSIX = 0x1,
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QEMU_PCI_CAP_EXPRESS = 0x2,
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};
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struct PCIDevice {
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DeviceState qdev;
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/* PCI config space */
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uint8_t *config;
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/* Used to enable config checks on load. Note that writeable bits are
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* never checked even if set in cmask. */
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uint8_t *cmask;
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/* Used to implement R/W bytes */
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uint8_t *wmask;
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/* Used to allocate config space for capabilities. */
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uint8_t *used;
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/* the following fields are read only */
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PCIBus *bus;
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uint32_t devfn;
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char name[64];
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PCIIORegion io_regions[PCI_NUM_REGIONS];
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/* do not access the following fields */
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PCIConfigReadFunc *config_read;
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PCIConfigWriteFunc *config_write;
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/* IRQ objects for the INTA-INTD pins. */
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qemu_irq *irq;
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/* Current IRQ levels. Used internally by the generic PCI code. */
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uint8_t irq_state;
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/* Capability bits */
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uint32_t cap_present;
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/* Offset of MSI-X capability in config space */
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uint8_t msix_cap;
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/* MSI-X entries */
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int msix_entries_nr;
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/* Space to store MSIX table */
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uint8_t *msix_table_page;
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/* MMIO index used to map MSIX table and pending bit entries. */
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int msix_mmio_index;
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/* Reference-count for entries actually in use by driver. */
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unsigned *msix_entry_used;
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/* Region including the MSI-X table */
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uint32_t msix_bar_size;
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/* Version id needed for VMState */
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int32_t version_id;
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/* Location of option rom */
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char *romfile;
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ram_addr_t rom_offset;
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};
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PCIDevice *pci_register_device(PCIBus *bus, const char *name,
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int instance_size, int devfn,
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PCIConfigReadFunc *config_read,
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PCIConfigWriteFunc *config_write);
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void pci_register_bar(PCIDevice *pci_dev, int region_num,
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pcibus_t size, int type,
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PCIMapIORegionFunc *map_func);
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int pci_add_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
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void pci_del_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
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void pci_reserve_capability(PCIDevice *pci_dev, uint8_t offset, uint8_t size);
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uint8_t pci_find_capability(PCIDevice *pci_dev, uint8_t cap_id);
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uint32_t pci_default_read_config(PCIDevice *d,
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uint32_t address, int len);
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void pci_default_write_config(PCIDevice *d,
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uint32_t address, uint32_t val, int len);
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void pci_device_save(PCIDevice *s, QEMUFile *f);
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int pci_device_load(PCIDevice *s, QEMUFile *f);
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typedef void (*pci_set_irq_fn)(void *opaque, int irq_num, int level);
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typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num);
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typedef int (*pci_hotplug_fn)(PCIDevice *pci_dev, int state);
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void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
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const char *name, int devfn_min);
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PCIBus *pci_bus_new(DeviceState *parent, const char *name, int devfn_min);
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void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
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void *irq_opaque, int nirq);
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void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug);
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PCIBus *pci_register_bus(DeviceState *parent, const char *name,
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pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
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void *irq_opaque, int devfn_min, int nirq);
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PCIDevice *pci_nic_init(NICInfo *nd, const char *default_model,
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const char *default_devaddr);
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PCIDevice *pci_nic_init_nofail(NICInfo *nd, const char *default_model,
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const char *default_devaddr);
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int pci_bus_num(PCIBus *s);
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void pci_for_each_device(PCIBus *bus, int bus_num, void (*fn)(PCIBus *bus, PCIDevice *d));
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PCIBus *pci_find_root_bus(int domain);
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PCIBus *pci_find_bus(PCIBus *bus, int bus_num);
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PCIDevice *pci_find_device(PCIBus *bus, int bus_num, int slot, int function);
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PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr);
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int pci_read_devaddr(Monitor *mon, const char *addr, int *domp, int *busp,
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unsigned *slotp);
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void pci_info(Monitor *mon);
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PCIBus *pci_bridge_init(PCIBus *bus, int devfn, uint16_t vid, uint16_t did,
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pci_map_irq_fn map_irq, const char *name);
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PCIDevice *pci_bridge_get_device(PCIBus *bus);
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static inline void
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pci_set_byte(uint8_t *config, uint8_t val)
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{
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*config = val;
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}
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static inline uint8_t
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pci_get_byte(uint8_t *config)
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{
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return *config;
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}
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static inline void
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pci_set_word(uint8_t *config, uint16_t val)
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{
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cpu_to_le16wu((uint16_t *)config, val);
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}
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static inline uint16_t
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pci_get_word(uint8_t *config)
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{
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return le16_to_cpupu((uint16_t *)config);
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}
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static inline void
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pci_set_long(uint8_t *config, uint32_t val)
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{
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cpu_to_le32wu((uint32_t *)config, val);
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}
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static inline uint32_t
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pci_get_long(uint8_t *config)
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{
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return le32_to_cpupu((uint32_t *)config);
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}
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static inline void
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pci_set_quad(uint8_t *config, uint64_t val)
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{
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cpu_to_le64w((uint64_t *)config, val);
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}
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static inline uint64_t
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pci_get_quad(uint8_t *config)
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{
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return le64_to_cpup((uint64_t *)config);
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}
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static inline void
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pci_config_set_vendor_id(uint8_t *pci_config, uint16_t val)
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{
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pci_set_word(&pci_config[PCI_VENDOR_ID], val);
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}
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static inline void
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pci_config_set_device_id(uint8_t *pci_config, uint16_t val)
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{
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pci_set_word(&pci_config[PCI_DEVICE_ID], val);
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}
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static inline void
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pci_config_set_class(uint8_t *pci_config, uint16_t val)
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{
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pci_set_word(&pci_config[PCI_CLASS_DEVICE], val);
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}
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typedef int (*pci_qdev_initfn)(PCIDevice *dev);
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typedef struct {
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DeviceInfo qdev;
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pci_qdev_initfn init;
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PCIUnregisterFunc *exit;
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PCIConfigReadFunc *config_read;
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PCIConfigWriteFunc *config_write;
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/* pci config header type */
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uint8_t header_type;
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/* pcie stuff */
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int is_express; /* is this device pci express? */
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/* rom bar */
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const char *romfile;
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} PCIDeviceInfo;
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void pci_qdev_register(PCIDeviceInfo *info);
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void pci_qdev_register_many(PCIDeviceInfo *info);
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PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name);
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PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name);
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static inline int pci_is_express(PCIDevice *d)
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{
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return d->cap_present & QEMU_PCI_CAP_EXPRESS;
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}
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static inline uint32_t pci_config_size(PCIDevice *d)
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{
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return pci_is_express(d) ? PCIE_CONFIG_SPACE_SIZE : PCI_CONFIG_SPACE_SIZE;
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}
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/* These are not pci specific. Should move into a separate header.
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* Only pci.c uses them, so keep them here for now.
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*/
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/* Get last byte of a range from offset + length.
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* Undefined for ranges that wrap around 0. */
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static inline uint64_t range_get_last(uint64_t offset, uint64_t len)
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{
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return offset + len - 1;
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}
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/* Check whether a given range covers a given byte. */
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static inline int range_covers_byte(uint64_t offset, uint64_t len,
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uint64_t byte)
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{
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return offset <= byte && byte <= range_get_last(offset, len);
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}
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/* Check whether 2 given ranges overlap.
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* Undefined if ranges that wrap around 0. */
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static inline int ranges_overlap(uint64_t first1, uint64_t len1,
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uint64_t first2, uint64_t len2)
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{
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uint64_t last1 = range_get_last(first1, len1);
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uint64_t last2 = range_get_last(first2, len2);
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return !(last2 < first1 || last1 < first2);
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}
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#endif
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