virtio-mmio: device probing and initialization.

Add virtio_mmio_setup_one() to setup virtio mmio devices.  Add
vp_init_mmio() to initialize device struct.  Because virtio-pci and
virtio-mmio are quite simliar we reuse the infrastructure we already
have for virtio-pci and just setup struct vp_cap for virtio-mmio.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 76 insertions, 0 deletions

diff --git a/src/hw/virtio-mmio.h b/src/hw/virtio-mmio.h
new file mode 100644
index 00000000..9e0dae42
--- /dev/null
+++ b/src/hw/virtio-mmio.h
@@ -0,0 +1,76 @@
+#ifndef _VIRTIO_MMIO_H
+#define _VIRTIO_MMIO_H
+
+struct vp_device;
+
+typedef struct virtio_mmio_cfg {
+    u32 magic;
+    u32 version;
+    u32 device_id;
+    u32 vendor_id;
+
+    u32 device_feature;
+    u32 device_feature_select;
+    u32 res_18;
+    u32 res_1c;
+
+    u32 guest_feature;
+    u32 guest_feature_select;
+    u32 legacy_guest_page_size;
+    u32 res_2c;
+
+    u32 queue_select;
+    u32 queue_num_max;
+    u32 queue_num;
+    u32 legacy_queue_align;
+
+    u32 legacy_queue_pfn;
+    u32 queue_ready;
+    u32 res_48;
+    u32 res_4c;
+
+    u32 queue_notify;
+    u32 res_54;
+    u32 res_58;
+    u32 res_5c;
+
+    u32 irq_status;
+    u32 irq_ack;
+    u32 res_68;
+    u32 res_6c;
+
+    u32 device_status;
+    u32 res_74;
+    u32 res_78;
+    u32 res_7c;
+
+    u32 queue_desc_lo;
+    u32 queue_desc_hi;
+    u32 res_88;
+    u32 res_8c;
+
+    u32 queue_driver_lo;
+    u32 queue_driver_hi;
+    u32 res_98;
+    u32 res_9c;
+
+    u32 queue_device_lo;
+    u32 queue_device_hi;
+    u32 res_a8;
+    u32 shm_sel;
+
+    u32 shmem_len_lo;
+    u32 shmem_len_hi;
+    u32 shmem_base_lo;
+    u32 shmem_base_hi;
+
+    u32 res_c0_f7[14];
+
+    u32 res_f8;
+    u32 config_generation;
+} virtio_mmio_cfg;
+
+void virtio_mmio_setup_one(u64 mmio);
+void vp_init_mmio(struct vp_device *vp, void *mmio);
+
+#endif /* _VIRTIO_MMIO_H */