mirror of https://gitee.com/openkylin/qemu.git
vfio/pci: Extract PCI structures to a separate header
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Alex Williamson
parent
5e15d79b86
commit
78f33d2bfd
144
hw/vfio/pci.c
144
hw/vfio/pci.c
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@ -26,156 +26,14 @@
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#include <unistd.h>
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#include "config.h"
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#include "exec/address-spaces.h"
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#include "exec/memory.h"
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#include "hw/pci/msi.h"
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#include "hw/pci/msix.h"
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#include "hw/pci/pci.h"
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#include "qemu-common.h"
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#include "qemu/error-report.h"
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#include "qemu/event_notifier.h"
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#include "qemu/queue.h"
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#include "qemu/range.h"
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#include "sysemu/kvm.h"
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#include "sysemu/sysemu.h"
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#include "pci.h"
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#include "trace.h"
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#include "hw/vfio/vfio.h"
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#include "hw/vfio/vfio-common.h"
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struct VFIOPCIDevice;
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typedef struct VFIOQuirk {
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MemoryRegion mem;
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struct VFIOPCIDevice *vdev;
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QLIST_ENTRY(VFIOQuirk) next;
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struct {
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uint32_t base_offset:TARGET_PAGE_BITS;
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uint32_t address_offset:TARGET_PAGE_BITS;
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uint32_t address_size:3;
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uint32_t bar:3;
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uint32_t address_match;
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uint32_t address_mask;
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uint32_t address_val:TARGET_PAGE_BITS;
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uint32_t data_offset:TARGET_PAGE_BITS;
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uint32_t data_size:3;
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uint8_t flags;
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uint8_t read_flags;
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uint8_t write_flags;
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} data;
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} VFIOQuirk;
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typedef struct VFIOBAR {
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VFIORegion region;
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bool ioport;
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bool mem64;
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QLIST_HEAD(, VFIOQuirk) quirks;
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} VFIOBAR;
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typedef struct VFIOVGARegion {
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MemoryRegion mem;
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off_t offset;
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int nr;
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QLIST_HEAD(, VFIOQuirk) quirks;
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} VFIOVGARegion;
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typedef struct VFIOVGA {
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off_t fd_offset;
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int fd;
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VFIOVGARegion region[QEMU_PCI_VGA_NUM_REGIONS];
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} VFIOVGA;
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typedef struct VFIOINTx {
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bool pending; /* interrupt pending */
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bool kvm_accel; /* set when QEMU bypass through KVM enabled */
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uint8_t pin; /* which pin to pull for qemu_set_irq */
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EventNotifier interrupt; /* eventfd triggered on interrupt */
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EventNotifier unmask; /* eventfd for unmask on QEMU bypass */
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PCIINTxRoute route; /* routing info for QEMU bypass */
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uint32_t mmap_timeout; /* delay to re-enable mmaps after interrupt */
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QEMUTimer *mmap_timer; /* enable mmaps after periods w/o interrupts */
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} VFIOINTx;
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typedef struct VFIOMSIVector {
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/*
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* Two interrupt paths are configured per vector. The first, is only used
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* for interrupts injected via QEMU. This is typically the non-accel path,
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* but may also be used when we want QEMU to handle masking and pending
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* bits. The KVM path bypasses QEMU and is therefore higher performance,
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* but requires masking at the device. virq is used to track the MSI route
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* through KVM, thus kvm_interrupt is only available when virq is set to a
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* valid (>= 0) value.
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*/
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EventNotifier interrupt;
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EventNotifier kvm_interrupt;
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struct VFIOPCIDevice *vdev; /* back pointer to device */
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int virq;
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bool use;
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} VFIOMSIVector;
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enum {
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VFIO_INT_NONE = 0,
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VFIO_INT_INTx = 1,
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VFIO_INT_MSI = 2,
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VFIO_INT_MSIX = 3,
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};
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/* Cache of MSI-X setup plus extra mmap and memory region for split BAR map */
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typedef struct VFIOMSIXInfo {
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uint8_t table_bar;
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uint8_t pba_bar;
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uint16_t entries;
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uint32_t table_offset;
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uint32_t pba_offset;
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MemoryRegion mmap_mem;
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void *mmap;
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} VFIOMSIXInfo;
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typedef struct VFIOPCIDevice {
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PCIDevice pdev;
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VFIODevice vbasedev;
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VFIOINTx intx;
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unsigned int config_size;
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uint8_t *emulated_config_bits; /* QEMU emulated bits, little-endian */
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off_t config_offset; /* Offset of config space region within device fd */
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unsigned int rom_size;
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off_t rom_offset; /* Offset of ROM region within device fd */
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void *rom;
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int msi_cap_size;
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VFIOMSIVector *msi_vectors;
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VFIOMSIXInfo *msix;
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int nr_vectors; /* Number of MSI/MSIX vectors currently in use */
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int interrupt; /* Current interrupt type */
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VFIOBAR bars[PCI_NUM_REGIONS - 1]; /* No ROM */
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VFIOVGA vga; /* 0xa0000, 0x3b0, 0x3c0 */
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PCIHostDeviceAddress host;
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EventNotifier err_notifier;
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EventNotifier req_notifier;
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int (*resetfn)(struct VFIOPCIDevice *);
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uint32_t features;
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#define VFIO_FEATURE_ENABLE_VGA_BIT 0
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#define VFIO_FEATURE_ENABLE_VGA (1 << VFIO_FEATURE_ENABLE_VGA_BIT)
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#define VFIO_FEATURE_ENABLE_REQ_BIT 1
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#define VFIO_FEATURE_ENABLE_REQ (1 << VFIO_FEATURE_ENABLE_REQ_BIT)
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int32_t bootindex;
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uint8_t pm_cap;
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bool has_vga;
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bool pci_aer;
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bool req_enabled;
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bool has_flr;
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bool has_pm_reset;
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bool rom_read_failed;
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bool no_kvm_intx;
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bool no_kvm_msi;
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bool no_kvm_msix;
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} VFIOPCIDevice;
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typedef struct VFIORomBlacklistEntry {
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uint16_t vendor_id;
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uint16_t device_id;
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} VFIORomBlacklistEntry;
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/*
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* List of device ids/vendor ids for which to disable
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@ -0,0 +1,158 @@
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/*
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* vfio based device assignment support - PCI devices
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*
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* Copyright Red Hat, Inc. 2012-2015
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*
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* Authors:
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* Alex Williamson <alex.williamson@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*/
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#ifndef HW_VFIO_VFIO_PCI_H
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#define HW_VFIO_VFIO_PCI_H
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#include "qemu-common.h"
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#include "exec/memory.h"
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#include "hw/pci/pci.h"
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#include "hw/vfio/vfio-common.h"
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#include "qemu/event_notifier.h"
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#include "qemu/queue.h"
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#include "qemu/timer.h"
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struct VFIOPCIDevice;
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typedef struct VFIOQuirk {
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MemoryRegion mem;
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struct VFIOPCIDevice *vdev;
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QLIST_ENTRY(VFIOQuirk) next;
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struct {
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uint32_t base_offset:TARGET_PAGE_BITS;
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uint32_t address_offset:TARGET_PAGE_BITS;
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uint32_t address_size:3;
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uint32_t bar:3;
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uint32_t address_match;
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uint32_t address_mask;
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uint32_t address_val:TARGET_PAGE_BITS;
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uint32_t data_offset:TARGET_PAGE_BITS;
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uint32_t data_size:3;
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uint8_t flags;
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uint8_t read_flags;
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uint8_t write_flags;
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} data;
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} VFIOQuirk;
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typedef struct VFIOBAR {
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VFIORegion region;
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bool ioport;
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bool mem64;
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QLIST_HEAD(, VFIOQuirk) quirks;
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} VFIOBAR;
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typedef struct VFIOVGARegion {
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MemoryRegion mem;
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off_t offset;
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int nr;
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QLIST_HEAD(, VFIOQuirk) quirks;
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} VFIOVGARegion;
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typedef struct VFIOVGA {
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off_t fd_offset;
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int fd;
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VFIOVGARegion region[QEMU_PCI_VGA_NUM_REGIONS];
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} VFIOVGA;
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typedef struct VFIOINTx {
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bool pending; /* interrupt pending */
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bool kvm_accel; /* set when QEMU bypass through KVM enabled */
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uint8_t pin; /* which pin to pull for qemu_set_irq */
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EventNotifier interrupt; /* eventfd triggered on interrupt */
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EventNotifier unmask; /* eventfd for unmask on QEMU bypass */
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PCIINTxRoute route; /* routing info for QEMU bypass */
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uint32_t mmap_timeout; /* delay to re-enable mmaps after interrupt */
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QEMUTimer *mmap_timer; /* enable mmaps after periods w/o interrupts */
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} VFIOINTx;
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typedef struct VFIOMSIVector {
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/*
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* Two interrupt paths are configured per vector. The first, is only used
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* for interrupts injected via QEMU. This is typically the non-accel path,
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* but may also be used when we want QEMU to handle masking and pending
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* bits. The KVM path bypasses QEMU and is therefore higher performance,
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* but requires masking at the device. virq is used to track the MSI route
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* through KVM, thus kvm_interrupt is only available when virq is set to a
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* valid (>= 0) value.
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*/
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EventNotifier interrupt;
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EventNotifier kvm_interrupt;
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struct VFIOPCIDevice *vdev; /* back pointer to device */
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int virq;
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bool use;
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} VFIOMSIVector;
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enum {
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VFIO_INT_NONE = 0,
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VFIO_INT_INTx = 1,
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VFIO_INT_MSI = 2,
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VFIO_INT_MSIX = 3,
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};
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/* Cache of MSI-X setup plus extra mmap and memory region for split BAR map */
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typedef struct VFIOMSIXInfo {
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uint8_t table_bar;
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uint8_t pba_bar;
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uint16_t entries;
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uint32_t table_offset;
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uint32_t pba_offset;
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MemoryRegion mmap_mem;
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void *mmap;
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} VFIOMSIXInfo;
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typedef struct VFIOPCIDevice {
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PCIDevice pdev;
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VFIODevice vbasedev;
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VFIOINTx intx;
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unsigned int config_size;
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uint8_t *emulated_config_bits; /* QEMU emulated bits, little-endian */
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off_t config_offset; /* Offset of config space region within device fd */
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unsigned int rom_size;
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off_t rom_offset; /* Offset of ROM region within device fd */
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void *rom;
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int msi_cap_size;
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VFIOMSIVector *msi_vectors;
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VFIOMSIXInfo *msix;
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int nr_vectors; /* Number of MSI/MSIX vectors currently in use */
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int interrupt; /* Current interrupt type */
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VFIOBAR bars[PCI_NUM_REGIONS - 1]; /* No ROM */
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VFIOVGA vga; /* 0xa0000, 0x3b0, 0x3c0 */
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PCIHostDeviceAddress host;
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EventNotifier err_notifier;
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EventNotifier req_notifier;
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int (*resetfn)(struct VFIOPCIDevice *);
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uint32_t features;
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#define VFIO_FEATURE_ENABLE_VGA_BIT 0
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#define VFIO_FEATURE_ENABLE_VGA (1 << VFIO_FEATURE_ENABLE_VGA_BIT)
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#define VFIO_FEATURE_ENABLE_REQ_BIT 1
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#define VFIO_FEATURE_ENABLE_REQ (1 << VFIO_FEATURE_ENABLE_REQ_BIT)
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int32_t bootindex;
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uint8_t pm_cap;
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bool has_vga;
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bool pci_aer;
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bool req_enabled;
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bool has_flr;
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bool has_pm_reset;
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bool rom_read_failed;
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bool no_kvm_intx;
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bool no_kvm_msi;
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bool no_kvm_msix;
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} VFIOPCIDevice;
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typedef struct VFIORomBlacklistEntry {
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uint16_t vendor_id;
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uint16_t device_id;
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} VFIORomBlacklistEntry;
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#endif /* HW_VFIO_VFIO_PCI_H */
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