xref: /qemu/include/hw/arm/virt.h (revision afe0b380)

/*
 *
 * Copyright (c) 2015 Linaro Limited
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2 or later, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Emulate a virtual board which works by passing Linux all the information
 * it needs about what devices are present via the device tree.
 * There are some restrictions about what we can do here:
 *  + we can only present devices whose Linux drivers will work based
 *    purely on the device tree with no platform data at all
 *  + we want to present a very stripped-down minimalist platform,
 *    both because this reduces the security attack surface from the guest
 *    and also because it reduces our exposure to being broken when
 *    the kernel updates its device tree bindings and requires further
 *    information in a device binding that we aren't providing.
 * This is essentially the same approach kvmtool uses.
 */

#ifndef QEMU_ARM_VIRT_H
#define QEMU_ARM_VIRT_H

#include "qemu-common.h"

#define NUM_VIRTIO_TRANSPORTS 32

enum {
    VIRT_FLASH,
    VIRT_MEM,
    VIRT_CPUPERIPHS,
    VIRT_GIC_DIST,
    VIRT_GIC_CPU,
    VIRT_UART,
    VIRT_MMIO,
    VIRT_RTC,
    VIRT_FW_CFG,
    VIRT_PCIE,
};

typedef struct MemMapEntry {
    hwaddr base;
    hwaddr size;
} MemMapEntry;


#endif