| | 1 | /* |
| | 2 | * Virtio PCI Bindings |
| | 3 | * |
| | 4 | * Copyright IBM, Corp. 2007 |
| | 5 | * Copyright (c) 2009 CodeSourcery |
| | 6 | * |
| | 7 | * Authors: |
| | 8 | * Anthony Liguori <[email protected]> |
| | 9 | * Paul Brook <[email protected]> |
| | 10 | * |
| | 11 | * This work is licensed under the terms of the GNU GPL, version 2. See |
| | 12 | * the COPYING file in the top-level directory. |
| | 13 | */ |
| | 14 | |
| | 15 | #ifndef QEMU_VIRTIO_PCI_H |
| | 16 | #define QEMU_VIRTIO_PCI_H |
| | 17 | |
| | 18 | #include "virtio-blk.h" |
| | 19 | #include "virtio-net.h" |
| | 20 | #include "virtio-serial.h" |
| | 21 | #include "virtio-scsi.h" |
| | 22 | |
| | 23 | /* Performance improves when virtqueue kick processing is decoupled from the |
| | 24 | * vcpu thread using ioeventfd for some devices. */ |
| | 25 | #define VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT 1 |
| | 26 | #define VIRTIO_PCI_FLAG_USE_IOEVENTFD (1 << VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT) |
| | 27 | |
| | 28 | typedef struct { |
| | 29 | int virq; |
| | 30 | unsigned int users; |
| | 31 | } VirtIOIRQFD; |
| | 32 | |
| | 33 | typedef struct { |
| | 34 | PCIDevice pci_dev; |
| | 35 | VirtIODevice *vdev; |
| | 36 | MemoryRegion bar; |
| | 37 | uint32_t flags; |
| | 38 | uint32_t class_code; |
| | 39 | uint32_t nvectors; |
| | 40 | VirtIOBlkConf blk; |
| | 41 | NICConf nic; |
| | 42 | uint32_t host_features; |
| | 43 | #ifdef CONFIG_LINUX |
| | 44 | V9fsConf fsconf; |
| | 45 | #endif |
| | 46 | virtio_serial_conf serial; |
| | 47 | virtio_net_conf net; |
| | 48 | VirtIOSCSIConf scsi; |
| | 49 | bool ioeventfd_disabled; |
| | 50 | bool ioeventfd_started; |
| | 51 | VirtIOIRQFD *vector_irqfd; |
| | 52 | } VirtIOPCIProxy; |
| | 53 | |
| | 54 | void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev); |
| | 55 | void virtio_pci_reset(DeviceState *d); |
| | 56 | |
| | 57 | /* Virtio ABI version, if we increment this, we break the guest driver. */ |
| | 58 | #define VIRTIO_PCI_ABI_VERSION 0 |
| | 59 | |
| | 60 | #endif |
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