microblaze: linux-user support.

[qemu] / hw / virtio.h

diff --git a/hw/virtio.h b/hw/virtio.h
index 83511e2..425727e 100644 (file)
--- a/hw/virtio.h
+++ b/hw/virtio.h
@@ -15,7 +15,7 @@
 #define _QEMU_VIRTIO_H
 
 #include "hw.h"
-#include "pci.h"
+#include "qdev.h"
 
 /* from Linux's linux/virtio_config.h */
 
@@ -32,6 +32,8 @@
 /* We notify when the ring is completely used, even if the guest is supressing
  * callbacks */
 #define VIRTIO_F_NOTIFY_ON_EMPTY        24
+/* A guest should never accept this.  It implies negotiation is broken. */
+#define VIRTIO_F_BAD_FEATURE           30
 
 /* from Linux's linux/virtio_ring.h */
 
@@ -68,13 +70,15 @@ typedef struct VirtQueueElement
     struct iovec out_sg[VIRTQUEUE_MAX_SIZE];
 } VirtQueueElement;
 
+typedef struct {
+    void (*update_irq)(void * opaque);
+} VirtIOBindings;
+
 #define VIRTIO_PCI_QUEUE_MAX 16
 
 struct VirtIODevice
 {
-    PCIDevice pci_dev;
     const char *name;
-    uint32_t addr;
     uint8_t status;
     uint8_t isr;
     uint16_t queue_sel;
@@ -82,20 +86,17 @@ struct VirtIODevice
     size_t config_len;
     void *config;
     uint32_t (*get_features)(VirtIODevice *vdev);
+    uint32_t (*bad_features)(VirtIODevice *vdev);
     void (*set_features)(VirtIODevice *vdev, uint32_t val);
     void (*get_config)(VirtIODevice *vdev, uint8_t *config);
     void (*set_config)(VirtIODevice *vdev, const uint8_t *config);
     void (*reset)(VirtIODevice *vdev);
     VirtQueue *vq;
+    const VirtIOBindings *binding;
+    void *binding_opaque;
+    uint16_t device_id;
 };
 
-VirtIODevice *virtio_init_pci(PCIBus *bus, const char *name,
-                              uint16_t vendor, uint16_t device,
-                              uint16_t subvendor, uint16_t subdevice,
-                              uint8_t class_code, uint8_t subclass_code,
-                              uint8_t pif, size_t config_size,
-                              size_t struct_size);
-
 VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
                             void (*handle_output)(VirtIODevice *,
                                                   VirtQueue *));
@@ -115,6 +116,8 @@ void virtio_save(VirtIODevice *vdev, QEMUFile *f);
 
 void virtio_load(VirtIODevice *vdev, QEMUFile *f);
 
+void virtio_cleanup(VirtIODevice *vdev);
+
 void virtio_notify_config(VirtIODevice *vdev);
 
 void virtio_queue_set_notification(VirtQueue *vq, int enable);
@@ -123,4 +126,30 @@ int virtio_queue_ready(VirtQueue *vq);
 
 int virtio_queue_empty(VirtQueue *vq);
 
+/* Host binding interface.  */
+
+VirtIODevice *virtio_common_init(const char *name, uint16_t device_id,
+                                 size_t config_size, size_t struct_size);
+uint32_t virtio_config_readb(VirtIODevice *vdev, uint32_t addr);
+uint32_t virtio_config_readw(VirtIODevice *vdev, uint32_t addr);
+uint32_t virtio_config_readl(VirtIODevice *vdev, uint32_t addr);
+void virtio_config_writeb(VirtIODevice *vdev, uint32_t addr, uint32_t data);
+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, target_phys_addr_t addr);
+target_phys_addr_t virtio_queue_get_addr(VirtIODevice *vdev, int n);
+int virtio_queue_get_num(VirtIODevice *vdev, int n);
+void virtio_queue_notify(VirtIODevice *vdev, int n);
+void virtio_reset(void *opaque);
+void virtio_update_irq(VirtIODevice *vdev);
+
+void virtio_bind_device(VirtIODevice *vdev, const VirtIOBindings *binding,
+                        void *opaque);
+
+/* Base devices.  */
+VirtIODevice *virtio_blk_init(DeviceState *dev);
+VirtIODevice *virtio_net_init(DeviceState *dev);
+VirtIODevice *virtio_console_init(DeviceState *dev);
+VirtIODevice *virtio_balloon_init(DeviceState *dev);
+
 #endif