diff options
| author | cornelia.huck <cornelia.huck@0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652> | 2013-11-04 14:32:55 +0000 |
|---|---|---|
| committer | cornelia.huck <cornelia.huck@0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652> | 2013-11-04 14:32:55 +0000 |
| commit | c01a259dbbd36e53bf6a34e5f7814a9fbd99b44e (patch) | |
| tree | 70d5b4950ee759223bfc2ccb9381ffb1168f5b83 | |
| parent | 711aad9b11e683f5ffacb7d8d0e3fc6428b291e5 (diff) | |
ccw: Remove reference to old s390-virtio transport.
Historical notes for a mechanism that was never officially specced
do not add anything to the standard.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@83 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
| -rw-r--r-- | virtio-v1.0-wd01-part1-specification.txt | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/virtio-v1.0-wd01-part1-specification.txt b/virtio-v1.0-wd01-part1-specification.txt index c9f3cf3..18cb6b6 100644 --- a/virtio-v1.0-wd01-part1-specification.txt +++ b/virtio-v1.0-wd01-part1-specification.txt @@ -1703,13 +1703,6 @@ Notification mechanisms did not change. S/390 based virtual machines support neither PCI nor MMIO, so a different transport is needed there. -The old s390-virtio mechanism used a special page mapped above -the guest's memory and several diagnose calls (hypercalls); it -does have some drawbacks, however, like a rather limited number -of devices and very restricted hotplug support. Moreover, device -discovery and operation differ from other environments on the -S/390 platform. - virtio-ccw uses the standard channel I/O based mechanism used for the majority of devices on S/390. A virtual channel device with a special control unit type acts as proxy to the virtio device |