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| author | Rusty Russell <rusty@rustcorp.com.au> | 2007-10-22 11:24:21 +1000 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2007-10-23 15:49:56 +1000 |
| commit | 19f1537b7b8a9a82665db3ad8210a9d954d13acd (patch) | |
| tree | 793c1f8763350012caa521a55c5778b1c633b7e5 /Documentation/lguest | |
| parent | 15045275c32bf6d15d32c2eca8157be9c0ba6e45 (diff) | |
| download | lwn-19f1537b7b8a9a82665db3ad8210a9d954d13acd.tar.gz lwn-19f1537b7b8a9a82665db3ad8210a9d954d13acd.zip | |
Lguest support for Virtio
This makes lguest able to use the virtio devices.
We change the device descriptor page from a simple array to a variable
length "type, config_len, status, config data..." format, and
implement virtio_config_ops to read from that config data.
We use the virtio ring implementation for an efficient Guest <-> Host
virtqueue mechanism, and the new LHCALL_NOTIFY hypercall to kick the
host when it changes.
We also use LHCALL_NOTIFY on kernel addresses for very very early
console output. We could have another hypercall, but this hack works
quite well.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'Documentation/lguest')
0 files changed, 0 insertions, 0 deletions