motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-08 02:03:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fix oops on 2.6.25 guest (Rusty Russell)

Browse source 
I believe this is behind the following:
https://bugs.edge.launchpad.net/ubuntu/jaunty/+source/linux/+bug/331128

virtio_pci in 2.6.25 didn't do feature negotiation correctly: it acked every
bit.  Fortunately, we can detect this.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6975 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-04-05 17:40:08 +00:00
parent 1da92db280
commit 8eca6b1bc7
3 changed files with 27 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

3
hw/virtio.h
View file

@ -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 */
@ -82,6 +84,7 @@ 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);