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Virtio interface

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This attempts to implement a "virtual I/O" layer which should allow
common drivers to be efficiently used across most virtual I/O
mechanisms.  It will no-doubt need further enhancement.

The virtio drivers add buffers to virtio queues; as the buffers are consumed
the driver "interrupt" callbacks are invoked.

There is also a generic implementation of config space which drivers can query
to get setup information from the host.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Dor Laor <dor.laor@qumranet.com>
Cc: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Rusty Russell 2007-10-22 11:03:36 +10:00
parent 47436aa4ad
commit ec3d41c4db
10 changed files with 419 additions and 0 deletions
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6
include/linux/mod_devicetable.h
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@ -361,4 +361,10 @@ struct ssb_device_id {
#define SSB_ANY_ID 0xFFFF
#define SSB_ANY_REV 0xFF
struct virtio_device_id {
__u32 device;
__u32 vendor;
};
#define VIRTIO_DEV_ANY_ID 0xffffffff
#endif /* LINUX_MOD_DEVICETABLE_H */