tools/lguest: give virtqueues names for better error messages
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
diff --git a/tools/lguest/lguest.c b/tools/lguest/lguest.c
index bc444af..70ee62a 100644
--- a/tools/lguest/lguest.c
+++ b/tools/lguest/lguest.c
@@ -200,6 +200,9 @@
/* Which device owns me. */
struct device *dev;
+ /* Name for printing errors. */
+ const char *name;
+
/* The actual ring of buffers. */
struct vring vring;
@@ -2366,7 +2369,8 @@
* routines to allocate and manage them.
*/
static void add_pci_virtqueue(struct device *dev,
- void (*service)(struct virtqueue *))
+ void (*service)(struct virtqueue *),
+ const char *name)
{
struct virtqueue **i, *vq = malloc(sizeof(*vq));
@@ -2374,6 +2378,7 @@
vq->next = NULL;
vq->last_avail_idx = 0;
vq->dev = dev;
+ vq->name = name;
/*
* This is the routine the service thread will run, and its Process ID
@@ -2666,8 +2671,8 @@
* stdin. When they put something in the output queue, we write it to
* stdout.
*/
- add_pci_virtqueue(dev, console_input);
- add_pci_virtqueue(dev, console_output);
+ add_pci_virtqueue(dev, console_input, "input");
+ add_pci_virtqueue(dev, console_output, "output");
/* We need a configuration area for the emerg_wr early writes. */
add_pci_feature(dev, VIRTIO_CONSOLE_F_EMERG_WRITE);
@@ -2838,8 +2843,8 @@
dev->priv = net_info;
/* Network devices need a recv and a send queue, just like console. */
- add_pci_virtqueue(dev, net_input);
- add_pci_virtqueue(dev, net_output);
+ add_pci_virtqueue(dev, net_input, "rx");
+ add_pci_virtqueue(dev, net_output, "tx");
/*
* We need a socket to perform the magic network ioctls to bring up the
@@ -3026,7 +3031,7 @@
dev = new_pci_device("block", VIRTIO_ID_BLOCK, 0x01, 0x80);
/* The device has one virtqueue, where the Guest places requests. */
- add_pci_virtqueue(dev, blk_request);
+ add_pci_virtqueue(dev, blk_request, "request");
/* Allocate the room for our own bookkeeping */
vblk = dev->priv = malloc(sizeof(*vblk));
@@ -3107,7 +3112,7 @@
dev->priv = rng_info;
/* The device has one virtqueue, where the Guest places inbufs. */
- add_pci_virtqueue(dev, rng_input);
+ add_pci_virtqueue(dev, rng_input, "input");
/* We don't have any configuration space */
no_device_config(dev);