4 files changed, 25 insertions, 0 deletions
diff --git a/include/hw/arm/arm.h b/include/hw/arm/arm.h
index 7b2b02daaf..bae87c6273 100644
--- a/include/hw/arm/arm.h
+++ b/include/hw/arm/arm.h
@@ -55,6 +55,10 @@ struct arm_boot_info {
                                  const struct arm_boot_info *info);
     void (*secondary_cpu_reset_hook)(ARMCPU *cpu,
                                      const struct arm_boot_info *info);
+    /* if a board needs to be able to modify a device tree provided by
+     * the user it should implement this hook.
+     */
+    void (*modify_dtb)(const struct arm_boot_info *info, void *fdt);
     /* Used internally by arm_boot.c */
     int is_linux;
     hwaddr initrd_start;
diff --git a/include/hw/loader.h b/include/hw/loader.h
index 15d4cc9a55..eb9c9a3612 100644
--- a/include/hw/loader.h
+++ b/include/hw/loader.h
@@ -17,6 +17,19 @@ int load_aout(const char *filename, hwaddr addr, int max_sz,
 int load_uimage(const char *filename, hwaddr *ep,
                 hwaddr *loadaddr, int *is_linux);
 
+/**
+ * load_ramdisk:
+ * @filename: Path to the ramdisk image
+ * @addr: Memory address to load the ramdisk to
+ * @max_sz: Maximum allowed ramdisk size (for non-u-boot ramdisks)
+ *
+ * Load a ramdisk image with U-Boot header to the specified memory
+ * address.
+ *
+ * Returns the size of the loaded image on success, -1 otherwise.
+ */
+int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz);
+
 ssize_t read_targphys(const char *name,
                       int fd, hwaddr dst_addr, size_t nbytes);
 void pstrcpy_targphys(const char *name,
diff --git a/include/hw/virtio/virtio-bus.h b/include/hw/virtio/virtio-bus.h
index 9ed60f9c9d..9217f85abc 100644
--- a/include/hw/virtio/virtio-bus.h
+++ b/include/hw/virtio/virtio-bus.h
@@ -62,6 +62,12 @@ typedef struct VirtioBusClass {
      * This is called by virtio-bus just before the device is unplugged.
      */
     void (*device_unplug)(DeviceState *d);
+    /*
+     * Does the transport have variable vring alignment?
+     * (ie can it ever call virtio_queue_set_align()?)
+     * Note that changing this will break migration for this transport.
+     */
+    bool has_variable_vring_alignment;
 } VirtioBusClass;
 
 struct VirtioBusState {
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 5d1d2be295..d7e9e0fc8a 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -200,7 +200,9 @@ void virtio_config_writew(VirtIODevice *vdev, uint32_t addr, uint32_t data);
 void virtio_config_writel(VirtIODevice *vdev, uint32_t addr, uint32_t data);
 void virtio_queue_set_addr(VirtIODevice *vdev, int n, hwaddr addr);
 hwaddr virtio_queue_get_addr(VirtIODevice *vdev, int n);
+void virtio_queue_set_num(VirtIODevice *vdev, int n, int num);
 int virtio_queue_get_num(VirtIODevice *vdev, int n);
+void virtio_queue_set_align(VirtIODevice *vdev, int n, int align);
 void virtio_queue_notify(VirtIODevice *vdev, int n);
 uint16_t virtio_queue_vector(VirtIODevice *vdev, int n);
 void virtio_queue_set_vector(VirtIODevice *vdev, int n, uint16_t vector);