qemu

FORK: QEMU emulator
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virtio-mmio.h (1625B)


      1 /*
      2  * libqos virtio MMIO definitions
      3  *
      4  * Copyright (c) 2014 Marc MarĂ­
      5  *
      6  * This work is licensed under the terms of the GNU GPL, version 2 or later.
      7  * See the COPYING file in the top-level directory.
      8  */
      9 
     10 #ifndef LIBQOS_VIRTIO_MMIO_H
     11 #define LIBQOS_VIRTIO_MMIO_H
     12 
     13 #include "virtio.h"
     14 #include "qgraph.h"
     15 
     16 #define QVIRTIO_MMIO_MAGIC_VALUE        0x000
     17 #define QVIRTIO_MMIO_VERSION            0x004
     18 #define QVIRTIO_MMIO_DEVICE_ID          0x008
     19 #define QVIRTIO_MMIO_VENDOR_ID          0x00C
     20 #define QVIRTIO_MMIO_HOST_FEATURES      0x010
     21 #define QVIRTIO_MMIO_HOST_FEATURES_SEL  0x014
     22 #define QVIRTIO_MMIO_GUEST_FEATURES     0x020
     23 #define QVIRTIO_MMIO_GUEST_FEATURES_SEL 0x024
     24 #define QVIRTIO_MMIO_GUEST_PAGE_SIZE    0x028
     25 #define QVIRTIO_MMIO_QUEUE_SEL          0x030
     26 #define QVIRTIO_MMIO_QUEUE_NUM_MAX      0x034
     27 #define QVIRTIO_MMIO_QUEUE_NUM          0x038
     28 #define QVIRTIO_MMIO_QUEUE_ALIGN        0x03C
     29 #define QVIRTIO_MMIO_QUEUE_PFN          0x040
     30 #define QVIRTIO_MMIO_QUEUE_NOTIFY       0x050
     31 #define QVIRTIO_MMIO_INTERRUPT_STATUS   0x060
     32 #define QVIRTIO_MMIO_INTERRUPT_ACK      0x064
     33 #define QVIRTIO_MMIO_DEVICE_STATUS      0x070
     34 #define QVIRTIO_MMIO_DEVICE_SPECIFIC    0x100
     35 
     36 typedef struct QVirtioMMIODevice {
     37     QOSGraphObject obj;
     38     QVirtioDevice vdev;
     39     QTestState *qts;
     40     uint64_t addr;
     41     uint32_t page_size;
     42     uint32_t features; /* As it cannot be read later, save it */
     43     uint32_t version;
     44 } QVirtioMMIODevice;
     45 
     46 extern const QVirtioBus qvirtio_mmio;
     47 
     48 void qvirtio_mmio_init_device(QVirtioMMIODevice *dev, QTestState *qts,
     49                               uint64_t addr, uint32_t page_size);
     50 
     51 #endif