include/hw/arm/virt.h

   1 /*
   2  *
   3  * Copyright (c) 2015 Linaro Limited
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2 or later, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Emulate a virtual board which works by passing Linux all the information
  18  * it needs about what devices are present via the device tree.
  19  * There are some restrictions about what we can do here:
  20  *  + we can only present devices whose Linux drivers will work based
  21  *    purely on the device tree with no platform data at all
  22  *  + we want to present a very stripped-down minimalist platform,
  23  *    both because this reduces the security attack surface from the guest
  24  *    and also because it reduces our exposure to being broken when
  25  *    the kernel updates its device tree bindings and requires further
  26  *    information in a device binding that we aren't providing.
  27  * This is essentially the same approach kvmtool uses.
  28  */
  29
  30 #ifndef QEMU_ARM_VIRT_H
  31 #define QEMU_ARM_VIRT_H
  32
  33 #include "qemu-common.h"
  34
  35 #define NUM_VIRTIO_TRANSPORTS 32
  36
  37 enum {
  38     VIRT_FLASH,
  39     VIRT_MEM,
  40     VIRT_CPUPERIPHS,
  41     VIRT_GIC_DIST,
  42     VIRT_GIC_CPU,
  43     VIRT_UART,
  44     VIRT_MMIO,
  45     VIRT_RTC,
  46     VIRT_FW_CFG,
  47     VIRT_PCIE,
  48 };
  49
  50 typedef struct MemMapEntry {
  51     hwaddr base;
  52     hwaddr size;
  53 } MemMapEntry;
  54
  55
  56 #endif