Add qemu 2.4.0
[kvmfornfv.git] / qemu / hw / arm / vexpress.c
diff --git a/qemu/hw/arm/vexpress.c b/qemu/hw/arm/vexpress.c
new file mode 100644 (file)
index 0000000..da21788
--- /dev/null
@@ -0,0 +1,808 @@
+/*
+ * ARM Versatile Express emulation.
+ *
+ * Copyright (c) 2010 - 2011 B Labs Ltd.
+ * Copyright (c) 2011 Linaro Limited
+ * Written by Bahadir Balban, Amit Mahajan, Peter Maydell
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that 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/>.
+ *
+ *  Contributions after 2012-01-13 are licensed under the terms of the
+ *  GNU GPL, version 2 or (at your option) any later version.
+ */
+
+#include "hw/sysbus.h"
+#include "hw/arm/arm.h"
+#include "hw/arm/primecell.h"
+#include "hw/devices.h"
+#include "net/net.h"
+#include "sysemu/sysemu.h"
+#include "hw/boards.h"
+#include "hw/loader.h"
+#include "exec/address-spaces.h"
+#include "sysemu/block-backend.h"
+#include "hw/block/flash.h"
+#include "sysemu/device_tree.h"
+#include "qemu/error-report.h"
+#include <libfdt.h>
+
+#define VEXPRESS_BOARD_ID 0x8e0
+#define VEXPRESS_FLASH_SIZE (64 * 1024 * 1024)
+#define VEXPRESS_FLASH_SECT_SIZE (256 * 1024)
+
+/* Number of virtio transports to create (0..8; limited by
+ * number of available IRQ lines).
+ */
+#define NUM_VIRTIO_TRANSPORTS 4
+
+/* Address maps for peripherals:
+ * the Versatile Express motherboard has two possible maps,
+ * the "legacy" one (used for A9) and the "Cortex-A Series"
+ * map (used for newer cores).
+ * Individual daughterboards can also have different maps for
+ * their peripherals.
+ */
+
+enum {
+    VE_SYSREGS,
+    VE_SP810,
+    VE_SERIALPCI,
+    VE_PL041,
+    VE_MMCI,
+    VE_KMI0,
+    VE_KMI1,
+    VE_UART0,
+    VE_UART1,
+    VE_UART2,
+    VE_UART3,
+    VE_WDT,
+    VE_TIMER01,
+    VE_TIMER23,
+    VE_SERIALDVI,
+    VE_RTC,
+    VE_COMPACTFLASH,
+    VE_CLCD,
+    VE_NORFLASH0,
+    VE_NORFLASH1,
+    VE_NORFLASHALIAS,
+    VE_SRAM,
+    VE_VIDEORAM,
+    VE_ETHERNET,
+    VE_USB,
+    VE_DAPROM,
+    VE_VIRTIO,
+};
+
+static hwaddr motherboard_legacy_map[] = {
+    [VE_NORFLASHALIAS] = 0,
+    /* CS7: 0x10000000 .. 0x10020000 */
+    [VE_SYSREGS] = 0x10000000,
+    [VE_SP810] = 0x10001000,
+    [VE_SERIALPCI] = 0x10002000,
+    [VE_PL041] = 0x10004000,
+    [VE_MMCI] = 0x10005000,
+    [VE_KMI0] = 0x10006000,
+    [VE_KMI1] = 0x10007000,
+    [VE_UART0] = 0x10009000,
+    [VE_UART1] = 0x1000a000,
+    [VE_UART2] = 0x1000b000,
+    [VE_UART3] = 0x1000c000,
+    [VE_WDT] = 0x1000f000,
+    [VE_TIMER01] = 0x10011000,
+    [VE_TIMER23] = 0x10012000,
+    [VE_VIRTIO] = 0x10013000,
+    [VE_SERIALDVI] = 0x10016000,
+    [VE_RTC] = 0x10017000,
+    [VE_COMPACTFLASH] = 0x1001a000,
+    [VE_CLCD] = 0x1001f000,
+    /* CS0: 0x40000000 .. 0x44000000 */
+    [VE_NORFLASH0] = 0x40000000,
+    /* CS1: 0x44000000 .. 0x48000000 */
+    [VE_NORFLASH1] = 0x44000000,
+    /* CS2: 0x48000000 .. 0x4a000000 */
+    [VE_SRAM] = 0x48000000,
+    /* CS3: 0x4c000000 .. 0x50000000 */
+    [VE_VIDEORAM] = 0x4c000000,
+    [VE_ETHERNET] = 0x4e000000,
+    [VE_USB] = 0x4f000000,
+};
+
+static hwaddr motherboard_aseries_map[] = {
+    [VE_NORFLASHALIAS] = 0,
+    /* CS0: 0x08000000 .. 0x0c000000 */
+    [VE_NORFLASH0] = 0x08000000,
+    /* CS4: 0x0c000000 .. 0x10000000 */
+    [VE_NORFLASH1] = 0x0c000000,
+    /* CS5: 0x10000000 .. 0x14000000 */
+    /* CS1: 0x14000000 .. 0x18000000 */
+    [VE_SRAM] = 0x14000000,
+    /* CS2: 0x18000000 .. 0x1c000000 */
+    [VE_VIDEORAM] = 0x18000000,
+    [VE_ETHERNET] = 0x1a000000,
+    [VE_USB] = 0x1b000000,
+    /* CS3: 0x1c000000 .. 0x20000000 */
+    [VE_DAPROM] = 0x1c000000,
+    [VE_SYSREGS] = 0x1c010000,
+    [VE_SP810] = 0x1c020000,
+    [VE_SERIALPCI] = 0x1c030000,
+    [VE_PL041] = 0x1c040000,
+    [VE_MMCI] = 0x1c050000,
+    [VE_KMI0] = 0x1c060000,
+    [VE_KMI1] = 0x1c070000,
+    [VE_UART0] = 0x1c090000,
+    [VE_UART1] = 0x1c0a0000,
+    [VE_UART2] = 0x1c0b0000,
+    [VE_UART3] = 0x1c0c0000,
+    [VE_WDT] = 0x1c0f0000,
+    [VE_TIMER01] = 0x1c110000,
+    [VE_TIMER23] = 0x1c120000,
+    [VE_VIRTIO] = 0x1c130000,
+    [VE_SERIALDVI] = 0x1c160000,
+    [VE_RTC] = 0x1c170000,
+    [VE_COMPACTFLASH] = 0x1c1a0000,
+    [VE_CLCD] = 0x1c1f0000,
+};
+
+/* Structure defining the peculiarities of a specific daughterboard */
+
+typedef struct VEDBoardInfo VEDBoardInfo;
+
+typedef struct {
+    MachineClass parent;
+    VEDBoardInfo *daughterboard;
+} VexpressMachineClass;
+
+typedef struct {
+    MachineState parent;
+    bool secure;
+} VexpressMachineState;
+
+#define TYPE_VEXPRESS_MACHINE   "vexpress"
+#define TYPE_VEXPRESS_A9_MACHINE   "vexpress-a9"
+#define TYPE_VEXPRESS_A15_MACHINE   "vexpress-a15"
+#define VEXPRESS_MACHINE(obj) \
+    OBJECT_CHECK(VexpressMachineState, (obj), TYPE_VEXPRESS_MACHINE)
+#define VEXPRESS_MACHINE_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(VexpressMachineClass, obj, TYPE_VEXPRESS_MACHINE)
+#define VEXPRESS_MACHINE_CLASS(klass) \
+    OBJECT_CLASS_CHECK(VexpressMachineClass, klass, TYPE_VEXPRESS_MACHINE)
+
+typedef void DBoardInitFn(const VexpressMachineState *machine,
+                          ram_addr_t ram_size,
+                          const char *cpu_model,
+                          qemu_irq *pic);
+
+struct VEDBoardInfo {
+    struct arm_boot_info bootinfo;
+    const hwaddr *motherboard_map;
+    hwaddr loader_start;
+    const hwaddr gic_cpu_if_addr;
+    uint32_t proc_id;
+    uint32_t num_voltage_sensors;
+    const uint32_t *voltages;
+    uint32_t num_clocks;
+    const uint32_t *clocks;
+    DBoardInitFn *init;
+};
+
+static void init_cpus(const char *cpu_model, const char *privdev,
+                      hwaddr periphbase, qemu_irq *pic, bool secure)
+{
+    ObjectClass *cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
+    DeviceState *dev;
+    SysBusDevice *busdev;
+    int n;
+
+    if (!cpu_oc) {
+        fprintf(stderr, "Unable to find CPU definition\n");
+        exit(1);
+    }
+
+    /* Create the actual CPUs */
+    for (n = 0; n < smp_cpus; n++) {
+        Object *cpuobj = object_new(object_class_get_name(cpu_oc));
+        Error *err = NULL;
+
+        if (!secure) {
+            object_property_set_bool(cpuobj, false, "has_el3", NULL);
+        }
+
+        if (object_property_find(cpuobj, "reset-cbar", NULL)) {
+            object_property_set_int(cpuobj, periphbase,
+                                    "reset-cbar", &error_abort);
+        }
+        object_property_set_bool(cpuobj, true, "realized", &err);
+        if (err) {
+            error_report_err(err);
+            exit(1);
+        }
+    }
+
+    /* Create the private peripheral devices (including the GIC);
+     * this must happen after the CPUs are created because a15mpcore_priv
+     * wires itself up to the CPU's generic_timer gpio out lines.
+     */
+    dev = qdev_create(NULL, privdev);
+    qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
+    qdev_init_nofail(dev);
+    busdev = SYS_BUS_DEVICE(dev);
+    sysbus_mmio_map(busdev, 0, periphbase);
+
+    /* Interrupts [42:0] are from the motherboard;
+     * [47:43] are reserved; [63:48] are daughterboard
+     * peripherals. Note that some documentation numbers
+     * external interrupts starting from 32 (because there
+     * are internal interrupts 0..31).
+     */
+    for (n = 0; n < 64; n++) {
+        pic[n] = qdev_get_gpio_in(dev, n);
+    }
+
+    /* Connect the CPUs to the GIC */
+    for (n = 0; n < smp_cpus; n++) {
+        DeviceState *cpudev = DEVICE(qemu_get_cpu(n));
+
+        sysbus_connect_irq(busdev, n, qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
+        sysbus_connect_irq(busdev, n + smp_cpus,
+                           qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
+    }
+}
+
+static void a9_daughterboard_init(const VexpressMachineState *vms,
+                                  ram_addr_t ram_size,
+                                  const char *cpu_model,
+                                  qemu_irq *pic)
+{
+    MemoryRegion *sysmem = get_system_memory();
+    MemoryRegion *ram = g_new(MemoryRegion, 1);
+    MemoryRegion *lowram = g_new(MemoryRegion, 1);
+    ram_addr_t low_ram_size;
+
+    if (!cpu_model) {
+        cpu_model = "cortex-a9";
+    }
+
+    if (ram_size > 0x40000000) {
+        /* 1GB is the maximum the address space permits */
+        fprintf(stderr, "vexpress-a9: cannot model more than 1GB RAM\n");
+        exit(1);
+    }
+
+    memory_region_allocate_system_memory(ram, NULL, "vexpress.highmem",
+                                         ram_size);
+    low_ram_size = ram_size;
+    if (low_ram_size > 0x4000000) {
+        low_ram_size = 0x4000000;
+    }
+    /* RAM is from 0x60000000 upwards. The bottom 64MB of the
+     * address space should in theory be remappable to various
+     * things including ROM or RAM; we always map the RAM there.
+     */
+    memory_region_init_alias(lowram, NULL, "vexpress.lowmem", ram, 0, low_ram_size);
+    memory_region_add_subregion(sysmem, 0x0, lowram);
+    memory_region_add_subregion(sysmem, 0x60000000, ram);
+
+    /* 0x1e000000 A9MPCore (SCU) private memory region */
+    init_cpus(cpu_model, "a9mpcore_priv", 0x1e000000, pic, vms->secure);
+
+    /* Daughterboard peripherals : 0x10020000 .. 0x20000000 */
+
+    /* 0x10020000 PL111 CLCD (daughterboard) */
+    sysbus_create_simple("pl111", 0x10020000, pic[44]);
+
+    /* 0x10060000 AXI RAM */
+    /* 0x100e0000 PL341 Dynamic Memory Controller */
+    /* 0x100e1000 PL354 Static Memory Controller */
+    /* 0x100e2000 System Configuration Controller */
+
+    sysbus_create_simple("sp804", 0x100e4000, pic[48]);
+    /* 0x100e5000 SP805 Watchdog module */
+    /* 0x100e6000 BP147 TrustZone Protection Controller */
+    /* 0x100e9000 PL301 'Fast' AXI matrix */
+    /* 0x100ea000 PL301 'Slow' AXI matrix */
+    /* 0x100ec000 TrustZone Address Space Controller */
+    /* 0x10200000 CoreSight debug APB */
+    /* 0x1e00a000 PL310 L2 Cache Controller */
+    sysbus_create_varargs("l2x0", 0x1e00a000, NULL);
+}
+
+/* Voltage values for SYS_CFG_VOLT daughterboard registers;
+ * values are in microvolts.
+ */
+static const uint32_t a9_voltages[] = {
+    1000000, /* VD10 : 1.0V : SoC internal logic voltage */
+    1000000, /* VD10_S2 : 1.0V : PL310, L2 cache, RAM, non-PL310 logic */
+    1000000, /* VD10_S3 : 1.0V : Cortex-A9, cores, MPEs, SCU, PL310 logic */
+    1800000, /* VCC1V8 : 1.8V : DDR2 SDRAM, test chip DDR2 I/O supply */
+    900000, /* DDR2VTT : 0.9V : DDR2 SDRAM VTT termination voltage */
+    3300000, /* VCC3V3 : 3.3V : local board supply for misc external logic */
+};
+
+/* Reset values for daughterboard oscillators (in Hz) */
+static const uint32_t a9_clocks[] = {
+    45000000, /* AMBA AXI ACLK: 45MHz */
+    23750000, /* daughterboard CLCD clock: 23.75MHz */
+    66670000, /* Test chip reference clock: 66.67MHz */
+};
+
+static VEDBoardInfo a9_daughterboard = {
+    .motherboard_map = motherboard_legacy_map,
+    .loader_start = 0x60000000,
+    .gic_cpu_if_addr = 0x1e000100,
+    .proc_id = 0x0c000191,
+    .num_voltage_sensors = ARRAY_SIZE(a9_voltages),
+    .voltages = a9_voltages,
+    .num_clocks = ARRAY_SIZE(a9_clocks),
+    .clocks = a9_clocks,
+    .init = a9_daughterboard_init,
+};
+
+static void a15_daughterboard_init(const VexpressMachineState *vms,
+                                   ram_addr_t ram_size,
+                                   const char *cpu_model,
+                                   qemu_irq *pic)
+{
+    MemoryRegion *sysmem = get_system_memory();
+    MemoryRegion *ram = g_new(MemoryRegion, 1);
+    MemoryRegion *sram = g_new(MemoryRegion, 1);
+
+    if (!cpu_model) {
+        cpu_model = "cortex-a15";
+    }
+
+    {
+        /* We have to use a separate 64 bit variable here to avoid the gcc
+         * "comparison is always false due to limited range of data type"
+         * warning if we are on a host where ram_addr_t is 32 bits.
+         */
+        uint64_t rsz = ram_size;
+        if (rsz > (30ULL * 1024 * 1024 * 1024)) {
+            fprintf(stderr, "vexpress-a15: cannot model more than 30GB RAM\n");
+            exit(1);
+        }
+    }
+
+    memory_region_allocate_system_memory(ram, NULL, "vexpress.highmem",
+                                         ram_size);
+    /* RAM is from 0x80000000 upwards; there is no low-memory alias for it. */
+    memory_region_add_subregion(sysmem, 0x80000000, ram);
+
+    /* 0x2c000000 A15MPCore private memory region (GIC) */
+    init_cpus(cpu_model, "a15mpcore_priv", 0x2c000000, pic, vms->secure);
+
+    /* A15 daughterboard peripherals: */
+
+    /* 0x20000000: CoreSight interfaces: not modelled */
+    /* 0x2a000000: PL301 AXI interconnect: not modelled */
+    /* 0x2a420000: SCC: not modelled */
+    /* 0x2a430000: system counter: not modelled */
+    /* 0x2b000000: HDLCD controller: not modelled */
+    /* 0x2b060000: SP805 watchdog: not modelled */
+    /* 0x2b0a0000: PL341 dynamic memory controller: not modelled */
+    /* 0x2e000000: system SRAM */
+    memory_region_init_ram(sram, NULL, "vexpress.a15sram", 0x10000,
+                           &error_abort);
+    vmstate_register_ram_global(sram);
+    memory_region_add_subregion(sysmem, 0x2e000000, sram);
+
+    /* 0x7ffb0000: DMA330 DMA controller: not modelled */
+    /* 0x7ffd0000: PL354 static memory controller: not modelled */
+}
+
+static const uint32_t a15_voltages[] = {
+    900000, /* Vcore: 0.9V : CPU core voltage */
+};
+
+static const uint32_t a15_clocks[] = {
+    60000000, /* OSCCLK0: 60MHz : CPU_CLK reference */
+    0, /* OSCCLK1: reserved */
+    0, /* OSCCLK2: reserved */
+    0, /* OSCCLK3: reserved */
+    40000000, /* OSCCLK4: 40MHz : external AXI master clock */
+    23750000, /* OSCCLK5: 23.75MHz : HDLCD PLL reference */
+    50000000, /* OSCCLK6: 50MHz : static memory controller clock */
+    60000000, /* OSCCLK7: 60MHz : SYSCLK reference */
+    40000000, /* OSCCLK8: 40MHz : DDR2 PLL reference */
+};
+
+static VEDBoardInfo a15_daughterboard = {
+    .motherboard_map = motherboard_aseries_map,
+    .loader_start = 0x80000000,
+    .gic_cpu_if_addr = 0x2c002000,
+    .proc_id = 0x14000237,
+    .num_voltage_sensors = ARRAY_SIZE(a15_voltages),
+    .voltages = a15_voltages,
+    .num_clocks = ARRAY_SIZE(a15_clocks),
+    .clocks = a15_clocks,
+    .init = a15_daughterboard_init,
+};
+
+static int add_virtio_mmio_node(void *fdt, uint32_t acells, uint32_t scells,
+                                hwaddr addr, hwaddr size, uint32_t intc,
+                                int irq)
+{
+    /* Add a virtio_mmio node to the device tree blob:
+     *   virtio_mmio@ADDRESS {
+     *       compatible = "virtio,mmio";
+     *       reg = <ADDRESS, SIZE>;
+     *       interrupt-parent = <&intc>;
+     *       interrupts = <0, irq, 1>;
+     *   }
+     * (Note that the format of the interrupts property is dependent on the
+     * interrupt controller that interrupt-parent points to; these are for
+     * the ARM GIC and indicate an SPI interrupt, rising-edge-triggered.)
+     */
+    int rc;
+    char *nodename = g_strdup_printf("/virtio_mmio@%" PRIx64, addr);
+
+    rc = qemu_fdt_add_subnode(fdt, nodename);
+    rc |= qemu_fdt_setprop_string(fdt, nodename,
+                                  "compatible", "virtio,mmio");
+    rc |= qemu_fdt_setprop_sized_cells(fdt, nodename, "reg",
+                                       acells, addr, scells, size);
+    qemu_fdt_setprop_cells(fdt, nodename, "interrupt-parent", intc);
+    qemu_fdt_setprop_cells(fdt, nodename, "interrupts", 0, irq, 1);
+    g_free(nodename);
+    if (rc) {
+        return -1;
+    }
+    return 0;
+}
+
+static uint32_t find_int_controller(void *fdt)
+{
+    /* Find the FDT node corresponding to the interrupt controller
+     * for virtio-mmio devices. We do this by scanning the fdt for
+     * a node with the right compatibility, since we know there is
+     * only one GIC on a vexpress board.
+     * We return the phandle of the node, or 0 if none was found.
+     */
+    const char *compat = "arm,cortex-a9-gic";
+    int offset;
+
+    offset = fdt_node_offset_by_compatible(fdt, -1, compat);
+    if (offset >= 0) {
+        return fdt_get_phandle(fdt, offset);
+    }
+    return 0;
+}
+
+static void vexpress_modify_dtb(const struct arm_boot_info *info, void *fdt)
+{
+    uint32_t acells, scells, intc;
+    const VEDBoardInfo *daughterboard = (const VEDBoardInfo *)info;
+
+    acells = qemu_fdt_getprop_cell(fdt, "/", "#address-cells");
+    scells = qemu_fdt_getprop_cell(fdt, "/", "#size-cells");
+    intc = find_int_controller(fdt);
+    if (!intc) {
+        /* Not fatal, we just won't provide virtio. This will
+         * happen with older device tree blobs.
+         */
+        fprintf(stderr, "QEMU: warning: couldn't find interrupt controller in "
+                "dtb; will not include virtio-mmio devices in the dtb.\n");
+    } else {
+        int i;
+        const hwaddr *map = daughterboard->motherboard_map;
+
+        /* We iterate backwards here because adding nodes
+         * to the dtb puts them in last-first.
+         */
+        for (i = NUM_VIRTIO_TRANSPORTS - 1; i >= 0; i--) {
+            add_virtio_mmio_node(fdt, acells, scells,
+                                 map[VE_VIRTIO] + 0x200 * i,
+                                 0x200, intc, 40 + i);
+        }
+    }
+}
+
+
+/* Open code a private version of pflash registration since we
+ * need to set non-default device width for VExpress platform.
+ */
+static pflash_t *ve_pflash_cfi01_register(hwaddr base, const char *name,
+                                          DriveInfo *di)
+{
+    DeviceState *dev = qdev_create(NULL, "cfi.pflash01");
+
+    if (di) {
+        qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(di),
+                            &error_abort);
+    }
+
+    qdev_prop_set_uint32(dev, "num-blocks",
+                         VEXPRESS_FLASH_SIZE / VEXPRESS_FLASH_SECT_SIZE);
+    qdev_prop_set_uint64(dev, "sector-length", VEXPRESS_FLASH_SECT_SIZE);
+    qdev_prop_set_uint8(dev, "width", 4);
+    qdev_prop_set_uint8(dev, "device-width", 2);
+    qdev_prop_set_bit(dev, "big-endian", false);
+    qdev_prop_set_uint16(dev, "id0", 0x89);
+    qdev_prop_set_uint16(dev, "id1", 0x18);
+    qdev_prop_set_uint16(dev, "id2", 0x00);
+    qdev_prop_set_uint16(dev, "id3", 0x00);
+    qdev_prop_set_string(dev, "name", name);
+    qdev_init_nofail(dev);
+
+    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base);
+    return OBJECT_CHECK(pflash_t, (dev), "cfi.pflash01");
+}
+
+static void vexpress_common_init(MachineState *machine)
+{
+    VexpressMachineState *vms = VEXPRESS_MACHINE(machine);
+    VexpressMachineClass *vmc = VEXPRESS_MACHINE_GET_CLASS(machine);
+    VEDBoardInfo *daughterboard = vmc->daughterboard;;
+    DeviceState *dev, *sysctl, *pl041;
+    qemu_irq pic[64];
+    uint32_t sys_id;
+    DriveInfo *dinfo;
+    pflash_t *pflash0;
+    ram_addr_t vram_size, sram_size;
+    MemoryRegion *sysmem = get_system_memory();
+    MemoryRegion *vram = g_new(MemoryRegion, 1);
+    MemoryRegion *sram = g_new(MemoryRegion, 1);
+    MemoryRegion *flashalias = g_new(MemoryRegion, 1);
+    MemoryRegion *flash0mem;
+    const hwaddr *map = daughterboard->motherboard_map;
+    int i;
+
+    daughterboard->init(vms, machine->ram_size, machine->cpu_model, pic);
+
+    /*
+     * If a bios file was provided, attempt to map it into memory
+     */
+    if (bios_name) {
+        char *fn;
+        int image_size;
+
+        if (drive_get(IF_PFLASH, 0, 0)) {
+            error_report("The contents of the first flash device may be "
+                         "specified with -bios or with -drive if=pflash... "
+                         "but you cannot use both options at once");
+            exit(1);
+        }
+        fn = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
+        if (!fn) {
+            error_report("Could not find ROM image '%s'", bios_name);
+            exit(1);
+        }
+        image_size = load_image_targphys(fn, map[VE_NORFLASH0],
+                                         VEXPRESS_FLASH_SIZE);
+        g_free(fn);
+        if (image_size < 0) {
+            error_report("Could not load ROM image '%s'", bios_name);
+            exit(1);
+        }
+    }
+
+    /* Motherboard peripherals: the wiring is the same but the
+     * addresses vary between the legacy and A-Series memory maps.
+     */
+
+    sys_id = 0x1190f500;
+
+    sysctl = qdev_create(NULL, "realview_sysctl");
+    qdev_prop_set_uint32(sysctl, "sys_id", sys_id);
+    qdev_prop_set_uint32(sysctl, "proc_id", daughterboard->proc_id);
+    qdev_prop_set_uint32(sysctl, "len-db-voltage",
+                         daughterboard->num_voltage_sensors);
+    for (i = 0; i < daughterboard->num_voltage_sensors; i++) {
+        char *propname = g_strdup_printf("db-voltage[%d]", i);
+        qdev_prop_set_uint32(sysctl, propname, daughterboard->voltages[i]);
+        g_free(propname);
+    }
+    qdev_prop_set_uint32(sysctl, "len-db-clock",
+                         daughterboard->num_clocks);
+    for (i = 0; i < daughterboard->num_clocks; i++) {
+        char *propname = g_strdup_printf("db-clock[%d]", i);
+        qdev_prop_set_uint32(sysctl, propname, daughterboard->clocks[i]);
+        g_free(propname);
+    }
+    qdev_init_nofail(sysctl);
+    sysbus_mmio_map(SYS_BUS_DEVICE(sysctl), 0, map[VE_SYSREGS]);
+
+    /* VE_SP810: not modelled */
+    /* VE_SERIALPCI: not modelled */
+
+    pl041 = qdev_create(NULL, "pl041");
+    qdev_prop_set_uint32(pl041, "nc_fifo_depth", 512);
+    qdev_init_nofail(pl041);
+    sysbus_mmio_map(SYS_BUS_DEVICE(pl041), 0, map[VE_PL041]);
+    sysbus_connect_irq(SYS_BUS_DEVICE(pl041), 0, pic[11]);
+
+    dev = sysbus_create_varargs("pl181", map[VE_MMCI], pic[9], pic[10], NULL);
+    /* Wire up MMC card detect and read-only signals */
+    qdev_connect_gpio_out(dev, 0,
+                          qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_WPROT));
+    qdev_connect_gpio_out(dev, 1,
+                          qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_CARDIN));
+
+    sysbus_create_simple("pl050_keyboard", map[VE_KMI0], pic[12]);
+    sysbus_create_simple("pl050_mouse", map[VE_KMI1], pic[13]);
+
+    sysbus_create_simple("pl011", map[VE_UART0], pic[5]);
+    sysbus_create_simple("pl011", map[VE_UART1], pic[6]);
+    sysbus_create_simple("pl011", map[VE_UART2], pic[7]);
+    sysbus_create_simple("pl011", map[VE_UART3], pic[8]);
+
+    sysbus_create_simple("sp804", map[VE_TIMER01], pic[2]);
+    sysbus_create_simple("sp804", map[VE_TIMER23], pic[3]);
+
+    /* VE_SERIALDVI: not modelled */
+
+    sysbus_create_simple("pl031", map[VE_RTC], pic[4]); /* RTC */
+
+    /* VE_COMPACTFLASH: not modelled */
+
+    sysbus_create_simple("pl111", map[VE_CLCD], pic[14]);
+
+    dinfo = drive_get_next(IF_PFLASH);
+    pflash0 = ve_pflash_cfi01_register(map[VE_NORFLASH0], "vexpress.flash0",
+                                       dinfo);
+    if (!pflash0) {
+        fprintf(stderr, "vexpress: error registering flash 0.\n");
+        exit(1);
+    }
+
+    if (map[VE_NORFLASHALIAS] != -1) {
+        /* Map flash 0 as an alias into low memory */
+        flash0mem = sysbus_mmio_get_region(SYS_BUS_DEVICE(pflash0), 0);
+        memory_region_init_alias(flashalias, NULL, "vexpress.flashalias",
+                                 flash0mem, 0, VEXPRESS_FLASH_SIZE);
+        memory_region_add_subregion(sysmem, map[VE_NORFLASHALIAS], flashalias);
+    }
+
+    dinfo = drive_get_next(IF_PFLASH);
+    if (!ve_pflash_cfi01_register(map[VE_NORFLASH1], "vexpress.flash1",
+                                  dinfo)) {
+        fprintf(stderr, "vexpress: error registering flash 1.\n");
+        exit(1);
+    }
+
+    sram_size = 0x2000000;
+    memory_region_init_ram(sram, NULL, "vexpress.sram", sram_size,
+                           &error_abort);
+    vmstate_register_ram_global(sram);
+    memory_region_add_subregion(sysmem, map[VE_SRAM], sram);
+
+    vram_size = 0x800000;
+    memory_region_init_ram(vram, NULL, "vexpress.vram", vram_size,
+                           &error_abort);
+    vmstate_register_ram_global(vram);
+    memory_region_add_subregion(sysmem, map[VE_VIDEORAM], vram);
+
+    /* 0x4e000000 LAN9118 Ethernet */
+    if (nd_table[0].used) {
+        lan9118_init(&nd_table[0], map[VE_ETHERNET], pic[15]);
+    }
+
+    /* VE_USB: not modelled */
+
+    /* VE_DAPROM: not modelled */
+
+    /* Create mmio transports, so the user can create virtio backends
+     * (which will be automatically plugged in to the transports). If
+     * no backend is created the transport will just sit harmlessly idle.
+     */
+    for (i = 0; i < NUM_VIRTIO_TRANSPORTS; i++) {
+        sysbus_create_simple("virtio-mmio", map[VE_VIRTIO] + 0x200 * i,
+                             pic[40 + i]);
+    }
+
+    daughterboard->bootinfo.ram_size = machine->ram_size;
+    daughterboard->bootinfo.kernel_filename = machine->kernel_filename;
+    daughterboard->bootinfo.kernel_cmdline = machine->kernel_cmdline;
+    daughterboard->bootinfo.initrd_filename = machine->initrd_filename;
+    daughterboard->bootinfo.nb_cpus = smp_cpus;
+    daughterboard->bootinfo.board_id = VEXPRESS_BOARD_ID;
+    daughterboard->bootinfo.loader_start = daughterboard->loader_start;
+    daughterboard->bootinfo.smp_loader_start = map[VE_SRAM];
+    daughterboard->bootinfo.smp_bootreg_addr = map[VE_SYSREGS] + 0x30;
+    daughterboard->bootinfo.gic_cpu_if_addr = daughterboard->gic_cpu_if_addr;
+    daughterboard->bootinfo.modify_dtb = vexpress_modify_dtb;
+    /* Indicate that when booting Linux we should be in secure state */
+    daughterboard->bootinfo.secure_boot = true;
+    arm_load_kernel(ARM_CPU(first_cpu), &daughterboard->bootinfo);
+}
+
+static bool vexpress_get_secure(Object *obj, Error **errp)
+{
+    VexpressMachineState *vms = VEXPRESS_MACHINE(obj);
+
+    return vms->secure;
+}
+
+static void vexpress_set_secure(Object *obj, bool value, Error **errp)
+{
+    VexpressMachineState *vms = VEXPRESS_MACHINE(obj);
+
+    vms->secure = value;
+}
+
+static void vexpress_instance_init(Object *obj)
+{
+    VexpressMachineState *vms = VEXPRESS_MACHINE(obj);
+
+    /* EL3 is enabled by default on vexpress */
+    vms->secure = true;
+    object_property_add_bool(obj, "secure", vexpress_get_secure,
+                             vexpress_set_secure, NULL);
+    object_property_set_description(obj, "secure",
+                                    "Set on/off to enable/disable the ARM "
+                                    "Security Extensions (TrustZone)",
+                                    NULL);
+}
+
+static void vexpress_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+
+    mc->name = TYPE_VEXPRESS_MACHINE;
+    mc->desc = "ARM Versatile Express";
+    mc->init = vexpress_common_init;
+    mc->block_default_type = IF_SCSI;
+    mc->max_cpus = 4;
+}
+
+static void vexpress_a9_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    VexpressMachineClass *vmc = VEXPRESS_MACHINE_CLASS(oc);
+
+    mc->name = TYPE_VEXPRESS_A9_MACHINE;
+    mc->desc = "ARM Versatile Express for Cortex-A9";
+
+    vmc->daughterboard = &a9_daughterboard;;
+}
+
+static void vexpress_a15_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    VexpressMachineClass *vmc = VEXPRESS_MACHINE_CLASS(oc);
+
+    mc->name = TYPE_VEXPRESS_A15_MACHINE;
+    mc->desc = "ARM Versatile Express for Cortex-A15";
+
+    vmc->daughterboard = &a15_daughterboard;
+}
+
+static const TypeInfo vexpress_info = {
+    .name = TYPE_VEXPRESS_MACHINE,
+    .parent = TYPE_MACHINE,
+    .abstract = true,
+    .instance_size = sizeof(VexpressMachineState),
+    .instance_init = vexpress_instance_init,
+    .class_size = sizeof(VexpressMachineClass),
+    .class_init = vexpress_class_init,
+};
+
+static const TypeInfo vexpress_a9_info = {
+    .name = TYPE_VEXPRESS_A9_MACHINE,
+    .parent = TYPE_VEXPRESS_MACHINE,
+    .class_init = vexpress_a9_class_init,
+};
+
+static const TypeInfo vexpress_a15_info = {
+    .name = TYPE_VEXPRESS_A15_MACHINE,
+    .parent = TYPE_VEXPRESS_MACHINE,
+    .class_init = vexpress_a15_class_init,
+};
+
+static void vexpress_machine_init(void)
+{
+    type_register_static(&vexpress_info);
+    type_register_static(&vexpress_a9_info);
+    type_register_static(&vexpress_a15_info);
+}
+
+machine_init(vexpress_machine_init);