This patch introduces a helper virtio_compat_add_message() to simplify
adding compat message for virtio device.
Signed-off-by: Asias He <asias.hejun@xxxxxxxxx>
---
tools/kvm/include/kvm/virtio.h | 1 +
tools/kvm/virtio/9p.c | 7 +------
tools/kvm/virtio/balloon.c | 7 +------
tools/kvm/virtio/blk.c | 7 +------
tools/kvm/virtio/console.c | 7 +------
tools/kvm/virtio/core.c | 33 +++++++++++++++++++++++++++++++++
tools/kvm/virtio/net.c | 7 +------
tools/kvm/virtio/rng.c | 7 +------
8 files changed, 40 insertions(+), 36 deletions(-)
diff --git a/tools/kvm/include/kvm/virtio.h b/tools/kvm/include/kvm/virtio.h
index 68eff15..a957a5b 100644
--- a/tools/kvm/include/kvm/virtio.h
+++ b/tools/kvm/include/kvm/virtio.h
@@ -98,4 +98,5 @@ struct virtio_ops {
int virtio_init(struct kvm *kvm, void *dev, struct virtio_device *vdev,
struct virtio_ops *ops, enum virtio_trans trans,
int device_id, int subsys_id, int class);
+int virtio_compat_add_message(const char *device, const char *config);
#endif /* KVM__VIRTIO_H */
diff --git a/tools/kvm/virtio/9p.c b/tools/kvm/virtio/9p.c
index 4108e02..b388d66 100644
--- a/tools/kvm/virtio/9p.c
+++ b/tools/kvm/virtio/9p.c
@@ -1313,12 +1313,7 @@ int virtio_9p__register(struct kvm *kvm, const char *root, const char *tag_name)
list_add(&p9dev->list, &devs);
if (compat_id != -1)
- compat_id = compat__add_message("virtio-9p device was not detected",
- "While you have requested a virtio-9p device, "
- "the guest kernel did not initialize it.\n"
- "Please make sure that the guest kernel was "
- "compiled with CONFIG_NET_9P_VIRTIO=y enabled "
- "in its .config");
+ compat_id = virtio_compat_add_message("virtio-9p", "CONFIG_NET_9P_VIRTIO");
return err;
diff --git a/tools/kvm/virtio/balloon.c b/tools/kvm/virtio/balloon.c
index 9f1d9bd..e442714 100644
--- a/tools/kvm/virtio/balloon.c
+++ b/tools/kvm/virtio/balloon.c
@@ -263,10 +263,5 @@ void virtio_bln__init(struct kvm *kvm)
VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_BLN, VIRTIO_ID_BALLOON, PCI_CLASS_BLN);
if (compat_id != -1)
- compat_id = compat__add_message("virtio-balloon device was not detected",
- "While you have requested a virtio-balloon device, "
- "the guest kernel did not initialize it.\n"
- "Please make sure that the guest kernel was "
- "compiled with CONFIG_VIRTIO_BALLOON=y enabled "
- "in its .config");
+ compat_id = virtio_compat_add_message("virtio-balloon", "CONFIG_VIRTIO_BALLOON");
}
diff --git a/tools/kvm/virtio/blk.c b/tools/kvm/virtio/blk.c
index 9256646..55ce26f 100644
--- a/tools/kvm/virtio/blk.c
+++ b/tools/kvm/virtio/blk.c
@@ -250,12 +250,7 @@ static int virtio_blk__init_one(struct kvm *kvm, struct disk_image *disk)
disk_image__set_callback(bdev->disk, virtio_blk_complete);
if (compat_id != -1)
- compat_id = compat__add_message("virtio-blk device was not detected",
- "While you have requested a virtio-blk device, "
- "the guest kernel did not initialize it.\n"
- "Please make sure that the guest kernel was "
- "compiled with CONFIG_VIRTIO_BLK=y enabled "
- "in its .config");
+ compat_id = virtio_compat_add_message("virtio-blk", "CONFIG_VIRTIO_BLK");
return 0;
}
diff --git a/tools/kvm/virtio/console.c b/tools/kvm/virtio/console.c
index 42472eb..3493905 100644
--- a/tools/kvm/virtio/console.c
+++ b/tools/kvm/virtio/console.c
@@ -189,10 +189,5 @@ void virtio_console__init(struct kvm *kvm)
virtio_init(kvm, &cdev, &cdev.vdev, &con_dev_virtio_ops,
VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_CONSOLE, VIRTIO_ID_CONSOLE, PCI_CLASS_CONSOLE);
if (compat_id != -1)
- compat_id = compat__add_message("virtio-console device was not detected",
- "While you have requested a virtio-console device, "
- "the guest kernel did not initialize it.\n"
- "Please make sure that the guest kernel was "
- "compiled with CONFIG_VIRTIO_CONSOLE=y enabled "
- "in its .config");
+ compat_id = virtio_compat_add_message("virtio-console", "CONFIG_VIRTIO_CONSOLE");
}
diff --git a/tools/kvm/virtio/core.c b/tools/kvm/virtio/core.c
index da27492..9e18333 100644
--- a/tools/kvm/virtio/core.c
+++ b/tools/kvm/virtio/core.c
@@ -3,6 +3,7 @@
#include <sys/uio.h>
#include <stdlib.h>
+#include "kvm/guest_compat.h"
#include "kvm/barrier.h"
#include "kvm/virtio.h"
#include "kvm/virtio-pci.h"
@@ -198,3 +199,35 @@ int virtio_init(struct kvm *kvm, void *dev, struct virtio_device *vdev,
return 0;
}
+
+int virtio_compat_add_message(const char *device, const char *config)
+{
+ int len = 1024;
+ int compat_id;
+ char *title;
+ char *desc;
+
+ title = malloc(len);
+ if (!title)
+ return -ENOMEM;
+
+ desc = malloc(len);
+ if (!desc) {
+ free(title);
+ return -ENOMEM;
+ }
+
+ snprintf(title, len, "%s device was not detected", device);
+ snprintf(desc, len, "While you have requested a %s device, "
+ "the guest kernel did not initialize it.\n"
+ "Please make sure that the guest kernel was "
+ "compiled with %s=y enabled in its .config",
+ device, config);
+
+ compat_id = compat__add_message(title, device);
+
+ free(desc);
+ free(title);
+
+ return compat_id;
+}
diff --git a/tools/kvm/virtio/net.c b/tools/kvm/virtio/net.c
index 50bef74..da44198 100644
--- a/tools/kvm/virtio/net.c
+++ b/tools/kvm/virtio/net.c
@@ -548,10 +548,5 @@ void virtio_net__init(const struct virtio_net_params *params)
virtio_net__io_thread_init(params->kvm, ndev);
if (compat_id != -1)
- compat_id = compat__add_message("virtio-net device was not detected",
- "While you have requested a virtio-net device, "
- "the guest kernel did not initialize it.\n"
- "Please make sure that the guest kernel was "
- "compiled with CONFIG_VIRTIO_NET=y enabled "
- "in its .config");
+ compat_id = virtio_compat_add_message("virtio-net", "CONFIG_VIRTIO_NET");
}
diff --git a/tools/kvm/virtio/rng.c b/tools/kvm/virtio/rng.c
index 105a429..202104c 100644
--- a/tools/kvm/virtio/rng.c
+++ b/tools/kvm/virtio/rng.c
@@ -171,12 +171,7 @@ int virtio_rng__init(struct kvm *kvm)
list_add_tail(&rdev->list, &rdevs);
if (compat_id != -1)
- compat_id = compat__add_message("virtio-rng device was not detected",
- "While you have requested a virtio-rng device, "
- "the guest kernel did not initialize it.\n"
- "Please make sure that the guest kernel was "
- "compiled with CONFIG_HW_RANDOM_VIRTIO=y enabled "
- "in its .config");
+ compat_id = virtio_compat_add_message("virtio-rng", "CONFIG_HW_RANDOM_VIRTIO");
return 0;
cleanup:
close(rdev->fd);
--
1.7.10.2
--
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