17cbcb0bf7
This is similar to pci_register_bar(), but automatically registers a single memory region spanning the entire BAR. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
479 lines
14 KiB
C
479 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 "qobject.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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#include "pcie.h"
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/* PCI bus */
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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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#define PCI_SLOT_MAX 32
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#define PCI_FUNC_MAX 8
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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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#define PCI_DEVICE_ID_INTEL_82801IR 0x2922
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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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#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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ram_addr_t ram_addr;
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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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#include "pci_regs.h"
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/* PCI HEADER_TYPE */
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#define PCI_HEADER_TYPE_MULTI_FUNCTION 0x80
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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_MSI = 0x1,
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QEMU_PCI_CAP_MSIX = 0x2,
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QEMU_PCI_CAP_EXPRESS = 0x4,
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/* multifunction capable device */
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#define QEMU_PCI_CAP_MULTIFUNCTION_BITNR 3
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QEMU_PCI_CAP_MULTIFUNCTION = (1 << QEMU_PCI_CAP_MULTIFUNCTION_BITNR),
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/* command register SERR bit enabled */
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#define QEMU_PCI_CAP_SERR_BITNR 4
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QEMU_PCI_CAP_SERR = (1 << QEMU_PCI_CAP_SERR_BITNR),
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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 implement RW1C(Write 1 to Clear) bytes */
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uint8_t *w1cmask;
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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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/* Offset of MSI capability in config space */
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uint8_t msi_cap;
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/* PCI Express */
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PCIExpressDevice exp;
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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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uint32_t rom_bar;
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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, uint8_t type,
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PCIMapIORegionFunc *map_func);
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void pci_register_bar_simple(PCIDevice *pci_dev, int region_num,
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pcibus_t size, uint8_t attr, ram_addr_t ram_addr);
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int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
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uint8_t offset, uint8_t 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 enum {
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PCI_HOTPLUG_DISABLED,
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PCI_HOTPLUG_ENABLED,
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PCI_COLDPLUG_ENABLED,
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} PCIHotplugState;
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typedef int (*pci_hotplug_fn)(DeviceState *qdev, PCIDevice *pci_dev,
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PCIHotplugState state);
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void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
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const char *name, uint8_t devfn_min);
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PCIBus *pci_bus_new(DeviceState *parent, const char *name, uint8_t 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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int pci_bus_get_irq_level(PCIBus *bus, int irq_num);
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void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug, DeviceState *dev);
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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, uint8_t devfn_min, int nirq);
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void pci_device_reset(PCIDevice *dev);
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void pci_bus_reset(PCIBus *bus);
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void pci_bus_set_mem_base(PCIBus *bus, target_phys_addr_t base);
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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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int pci_find_domain(const PCIBus *bus);
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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, uint8_t devfn);
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int pci_qdev_find_device(const char *id, PCIDevice **pdev);
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PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr);
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int pci_parse_devaddr(const char *addr, int *domp, int *busp,
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unsigned int *slotp, unsigned int *funcp);
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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 do_pci_info_print(Monitor *mon, const QObject *data);
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void do_pci_info(Monitor *mon, QObject **ret_data);
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void pci_bridge_update_mappings(PCIBus *b);
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void pci_device_deassert_intx(PCIDevice *dev);
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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(const 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(const uint8_t *config)
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{
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return le16_to_cpupu((const 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(const uint8_t *config)
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{
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return le32_to_cpupu((const 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(const uint8_t *config)
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{
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return le64_to_cpup((const 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_revision(uint8_t *pci_config, uint8_t val)
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{
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pci_set_byte(&pci_config[PCI_REVISION_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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static inline void
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pci_config_set_prog_interface(uint8_t *pci_config, uint8_t val)
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{
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pci_set_byte(&pci_config[PCI_CLASS_PROG], val);
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}
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static inline void
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pci_config_set_interrupt_pin(uint8_t *pci_config, uint8_t val)
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{
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pci_set_byte(&pci_config[PCI_INTERRUPT_PIN], val);
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}
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/*
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* helper functions to do bit mask operation on configuration space.
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* Just to set bit, use test-and-set and discard returned value.
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* Just to clear bit, use test-and-clear and discard returned value.
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* NOTE: They aren't atomic.
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*/
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static inline uint8_t
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pci_byte_test_and_clear_mask(uint8_t *config, uint8_t mask)
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{
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uint8_t val = pci_get_byte(config);
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pci_set_byte(config, val & ~mask);
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return val & mask;
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}
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static inline uint8_t
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pci_byte_test_and_set_mask(uint8_t *config, uint8_t mask)
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{
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uint8_t val = pci_get_byte(config);
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pci_set_byte(config, val | mask);
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return val & mask;
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}
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static inline uint16_t
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pci_word_test_and_clear_mask(uint8_t *config, uint16_t mask)
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{
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uint16_t val = pci_get_word(config);
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pci_set_word(config, val & ~mask);
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return val & mask;
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}
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static inline uint16_t
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pci_word_test_and_set_mask(uint8_t *config, uint16_t mask)
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{
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uint16_t val = pci_get_word(config);
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pci_set_word(config, val | mask);
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return val & mask;
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}
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static inline uint32_t
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pci_long_test_and_clear_mask(uint8_t *config, uint32_t mask)
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{
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uint32_t val = pci_get_long(config);
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pci_set_long(config, val & ~mask);
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return val & mask;
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}
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static inline uint32_t
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pci_long_test_and_set_mask(uint8_t *config, uint32_t mask)
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{
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uint32_t val = pci_get_long(config);
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pci_set_long(config, val | mask);
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return val & mask;
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}
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static inline uint64_t
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pci_quad_test_and_clear_mask(uint8_t *config, uint64_t mask)
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{
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uint64_t val = pci_get_quad(config);
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pci_set_quad(config, val & ~mask);
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return val & mask;
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}
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static inline uint64_t
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pci_quad_test_and_set_mask(uint8_t *config, uint64_t mask)
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{
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uint64_t val = pci_get_quad(config);
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pci_set_quad(config, val | mask);
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return val & mask;
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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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/*
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* pci-to-pci bridge or normal device.
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* This doesn't mean pci host switch.
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* When card bus bridge is supported, this would be enhanced.
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*/
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int is_bridge;
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/* pcie stuff */
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int is_express; /* is this device pci express? */
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/* device isn't hot-pluggable */
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int no_hotplug;
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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_multifunction(PCIBus *bus, int devfn, bool multifunction,
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const char *name);
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PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn,
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bool multifunction,
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const char *name);
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PCIDevice *pci_try_create_multifunction(PCIBus *bus, int devfn,
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bool multifunction,
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const char *name);
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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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PCIDevice *pci_try_create(PCIBus *bus, int devfn, const char *name);
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static inline int pci_is_express(const 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(const 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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#endif
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