hw/arm/virt: Move common definitions to virt.h

Move some common definitions to virt.h. These will be used by
generating ACPI tables.

Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1432522520-8068-3-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/virt.c

@@ -31,6 +31,7 @@
 #include "hw/sysbus.h"
 #include "hw/arm/arm.h"
 #include "hw/arm/primecell.h"
+#include "hw/arm/virt.h"
 #include "hw/devices.h"
 #include "net/net.h"
 #include "sysemu/block-backend.h"
@@ -44,8 +45,6 @@
 #include "qemu/error-report.h"
 #include "hw/pci-host/gpex.h"
 
-#define NUM_VIRTIO_TRANSPORTS 32
-
 /* Number of external interrupt lines to configure the GIC with */
 #define NUM_IRQS 128
 
@@ -60,24 +59,6 @@
 #define GIC_FDT_IRQ_PPI_CPU_START 8
 #define GIC_FDT_IRQ_PPI_CPU_WIDTH 8
 
-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;
-
 typedef struct VirtBoardInfo {
     struct arm_boot_info bootinfo;
     const char *cpu_model;

include/hw/arm/virt.h

@@ -0,0 +1,56 @@
+/*
+ *
+ * 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