cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

virtio-mmio.h (2195B)

      1/*
      2 * Virtio MMIO bindings
      3 *
      4 * Copyright (c) 2011 Linaro Limited
      5 *
      6 * Author:
      7 *  Peter Maydell <peter.maydell@linaro.org>
      8 *
      9 * This program is free software; you can redistribute it and/or modify
     10 * it under the terms of the GNU General Public License; either version 2
     11 * of the License, or (at your option) any later version.
     12 *
     13 * This program is distributed in the hope that it will be useful,
     14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16 * GNU General Public License for more details.
     17 *
     18 * You should have received a copy of the GNU General Public License along
     19 * with this program; if not, see <http://www.gnu.org/licenses/>.
     20 */
     21
     22#ifndef HW_VIRTIO_MMIO_H
     23#define HW_VIRTIO_MMIO_H
     24
     25#include "hw/virtio/virtio-bus.h"
     26#include "qom/object.h"
     27
     28/* QOM macros */
     29/* virtio-mmio-bus */
     30#define TYPE_VIRTIO_MMIO_BUS "virtio-mmio-bus"
     31/* This is reusing the VirtioBusState typedef from TYPE_VIRTIO_BUS */
     32DECLARE_OBJ_CHECKERS(VirtioBusState, VirtioBusClass,
     33                     VIRTIO_MMIO_BUS, TYPE_VIRTIO_MMIO_BUS)
     34
     35/* virtio-mmio */
     36#define TYPE_VIRTIO_MMIO "virtio-mmio"
     37OBJECT_DECLARE_SIMPLE_TYPE(VirtIOMMIOProxy, VIRTIO_MMIO)
     38
     39#define VIRT_MAGIC 0x74726976 /* 'virt' */
     40#define VIRT_VERSION 2
     41#define VIRT_VERSION_LEGACY 1
     42#define VIRT_VENDOR 0x554D4551 /* 'QEMU' */
     43
     44typedef struct VirtIOMMIOQueue {
     45    uint16_t num;
     46    bool enabled;
     47    uint32_t desc[2];
     48    uint32_t avail[2];
     49    uint32_t used[2];
     50} VirtIOMMIOQueue;
     51
     52#define VIRTIO_IOMMIO_FLAG_USE_IOEVENTFD_BIT 1
     53#define VIRTIO_IOMMIO_FLAG_USE_IOEVENTFD \
     54        (1 << VIRTIO_IOMMIO_FLAG_USE_IOEVENTFD_BIT)
     55
     56struct VirtIOMMIOProxy {
     57    /* Generic */
     58    SysBusDevice parent_obj;
     59    MemoryRegion iomem;
     60    qemu_irq irq;
     61    bool legacy;
     62    uint32_t flags;
     63    /* Guest accessible state needing migration and reset */
     64    uint32_t host_features_sel;
     65    uint32_t guest_features_sel;
     66    uint32_t guest_page_shift;
     67    /* virtio-bus */
     68    VirtioBusState bus;
     69    bool format_transport_address;
     70    /* Fields only used for non-legacy (v2) devices */
     71    uint32_t guest_features[2];
     72    VirtIOMMIOQueue vqs[VIRTIO_QUEUE_MAX];
     73};
     74
     75#endif