[2/5] kvm tools: introduces virtio.c and virtio.h

Commit Message

Asias He April 8, 2011, 4:10 p.m. UTC

all virito core code should be in virtio.c

Signed-off-by: Asias He <[e-mail]>
---
 tools/kvm/Makefile                |    1 +
 tools/kvm/blk-virtio.c            |    2 +-
 tools/kvm/console-virtio.c        |    2 +-
 tools/kvm/include/kvm/virtio.h    |   44 ++++++++++++++++++++++
 tools/kvm/include/kvm/virtqueue.h |   73 -------------------------------------
 tools/kvm/virtio.c                |   39 ++++++++++++++++++++
 6 files changed, 86 insertions(+), 75 deletions(-)
 create mode 100644 tools/kvm/include/kvm/virtio.h
 delete mode 100644 tools/kvm/include/kvm/virtqueue.h
 create mode 100644 tools/kvm/virtio.c

Patch

diff --git a/tools/kvm/Makefile b/tools/kvm/Makefile
index 55f342d..82d41b6 100644
--- a/tools/kvm/Makefile
+++ b/tools/kvm/Makefile
@@ -26,6 +26,7 @@  OBJS	+= mmio.o
 OBJS	+= pci.o
 OBJS	+= util.o
 OBJS	+= term.o
+OBJS	+= virtio.o
 
 DEPS	:= $(patsubst %.o,%.d,$(OBJS))
 
diff --git a/tools/kvm/blk-virtio.c b/tools/kvm/blk-virtio.c
index e94d7b3..2eb9734 100644
--- a/tools/kvm/blk-virtio.c
+++ b/tools/kvm/blk-virtio.c
@@ -3,7 +3,7 @@ 
 #include "kvm/virtio_pci.h"
 
 #include "kvm/disk-image.h"
-#include "kvm/virtqueue.h"
+#include "kvm/virtio.h"
 #include "kvm/ioport.h"
 #include "kvm/util.h"
 #include "kvm/kvm.h"
diff --git a/tools/kvm/console-virtio.c b/tools/kvm/console-virtio.c
index f094610..3926536 100644
--- a/tools/kvm/console-virtio.c
+++ b/tools/kvm/console-virtio.c
@@ -1,7 +1,7 @@ 
 #include "kvm/console-virtio.h"
 #include "kvm/virtio_pci.h"
 #include "kvm/disk-image.h"
-#include "kvm/virtqueue.h"
+#include "kvm/virtio.h"
 #include "kvm/ioport.h"
 #include "kvm/util.h"
 #include "kvm/term.h"
diff --git a/tools/kvm/include/kvm/virtio.h b/tools/kvm/include/kvm/virtio.h
new file mode 100644
index 0000000..075387d
--- /dev/null
+++ b/tools/kvm/include/kvm/virtio.h
@@ -0,0 +1,44 @@ 
+#ifndef KVM__VIRTIO_H
+#define KVM__VIRTIO_H
+
+#include <linux/virtio_ring.h>
+
+#include <stdint.h>
+#include <sys/uio.h>
+
+#include "kvm/kvm.h"
+
+struct virt_queue {
+	struct vring			vring;
+	uint32_t			pfn;
+	/* The last_avail_idx field is an index to ->ring of struct vring_avail.
+	   It's where we assume the next request index is at.  */
+	uint16_t			last_avail_idx;
+};
+
+static inline uint16_t virt_queue__pop(struct virt_queue *queue)
+{
+	return queue->vring.avail->ring[queue->last_avail_idx++ % queue->vring.num];
+}
+
+static inline struct vring_desc *virt_queue__get_desc(struct virt_queue *queue, uint16_t desc_ndx)
+{
+	return &queue->vring.desc[desc_ndx];
+}
+
+static inline struct vring_used_elem *virt_queue__get_used_elem(struct virt_queue *queue)
+{
+	return &queue->vring.used->ring[queue->vring.used->idx++ % queue->vring.num];
+}
+
+
+static inline bool virt_queue__available(struct virt_queue *vq)
+{
+	return vq->vring.avail->idx !=  vq->last_avail_idx;
+}
+
+struct vring_used_elem *virt_queue__set_used_elem(struct virt_queue *queue, uint32_t head, uint32_t len);
+
+uint16_t virt_queue__get_iov(struct virt_queue *queue, struct iovec iov[], uint16_t *out, uint16_t *in, struct kvm *kvm);
+
+#endif /* KVM__VIRTIO_H */
diff --git a/tools/kvm/include/kvm/virtqueue.h b/tools/kvm/include/kvm/virtqueue.h
deleted file mode 100644
index de360ae..0000000
--- a/tools/kvm/include/kvm/virtqueue.h
+++ /dev/null
@@ -1,73 +0,0 @@ 
-#ifndef KVM__VIRTQUEUE_H
-#define KVM__VIRTQUEUE_H
-
-#include <linux/virtio_ring.h>
-
-#include <stdint.h>
-#include <sys/uio.h>
-
-#include "kvm/kvm.h"
-
-struct virt_queue {
-	struct vring			vring;
-	uint32_t			pfn;
-	/* The last_avail_idx field is an index to ->ring of struct vring_avail.
-	   It's where we assume the next request index is at.  */
-	uint16_t			last_avail_idx;
-};
-
-static inline uint16_t virt_queue__pop(struct virt_queue *queue)
-{
-	return queue->vring.avail->ring[queue->last_avail_idx++ % queue->vring.num];
-}
-
-static inline struct vring_desc *virt_queue__get_desc(struct virt_queue *queue, uint16_t desc_ndx)
-{
-	return &queue->vring.desc[desc_ndx];
-}
-
-static inline struct vring_used_elem *virt_queue__get_used_elem(struct virt_queue *queue)
-{
-	return &queue->vring.used->ring[queue->vring.used->idx++ % queue->vring.num];
-}
-
-static inline struct vring_used_elem *virt_queue__set_used_elem(struct virt_queue *queue, uint32_t head, uint32_t len)
-{
-	struct vring_used_elem *used_elem;
-	used_elem	= &queue->vring.used->ring[queue->vring.used->idx++ % queue->vring.num];
-	used_elem->id	= head;
-	used_elem->len	= len;
-	return used_elem;
-}
-
-static inline bool virt_queue__available(struct virt_queue *vq)
-{
-	return vq->vring.avail->idx !=  vq->last_avail_idx;
-}
-
-static inline uint16_t virt_queue__get_iov(struct virt_queue *queue, struct iovec iov[], uint16_t *out, uint16_t *in, struct kvm *kvm)
-{
-	struct vring_desc *desc;
-	uint16_t head, idx;
-
-	idx = head = virt_queue__pop(queue);
-	*out = *in = 0;
-
-	do {
-		desc 				= virt_queue__get_desc(queue, idx);
-		iov[*out + *in].iov_base	= guest_flat_to_host(kvm, desc->addr);
-		iov[*out + *in].iov_len		= desc->len;
-		if (desc->flags & VRING_DESC_F_WRITE)
-			(*in)++;
-		else
-			(*out)++;
-		if (desc->flags & VRING_DESC_F_NEXT)
-			idx = desc->next;
-		else
-			break;
-	} while (1);
-
-	return head;
-}
-
-#endif /* KVM__VIRTQUEUE_H */
diff --git a/tools/kvm/virtio.c b/tools/kvm/virtio.c
new file mode 100644
index 0000000..a658519
--- /dev/null
+++ b/tools/kvm/virtio.c
@@ -0,0 +1,39 @@ 
+#include <linux/virtio_ring.h>
+#include <stdint.h>
+#include <sys/uio.h>
+#include "kvm/kvm.h"
+#include "kvm/virtio.h"
+
+struct vring_used_elem *virt_queue__set_used_elem(struct virt_queue *queue, uint32_t head, uint32_t len)
+{
+	struct vring_used_elem *used_elem;
+	used_elem	= &queue->vring.used->ring[queue->vring.used->idx++ % queue->vring.num];
+	used_elem->id	= head;
+	used_elem->len	= len;
+	return used_elem;
+}
+
+uint16_t virt_queue__get_iov(struct virt_queue *queue, struct iovec iov[], uint16_t *out, uint16_t *in, struct kvm *kvm)
+{
+	struct vring_desc *desc;
+	uint16_t head, idx;
+
+	idx = head = virt_queue__pop(queue);
+	*out = *in = 0;
+
+	do {
+		desc 				= virt_queue__get_desc(queue, idx);
+		iov[*out + *in].iov_base	= guest_flat_to_host(kvm, desc->addr);
+		iov[*out + *in].iov_len		= desc->len;
+		if (desc->flags & VRING_DESC_F_WRITE)
+			(*in)++;
+		else
+			(*out)++;
+		if (desc->flags & VRING_DESC_F_NEXT)
+			idx = desc->next;
+		else
+			break;
+	} while (1);
+
+	return head;
+}