Demi Marie Obenour 164666fa66 Improve docs for IOCTL_GNTDEV_MAP_GRANT_REF ...

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The current implementation of gntdev guarantees that the first call to
IOCTL_GNTDEV_MAP_GRANT_REF will set @index to 0.  This is required to
use gntdev for Wayland, which is a future desire of Qubes OS.
Additionally, requesting zero grants results in an error, but this was
not documented either.  Document both of these.

Signed-off-by: Demi Marie Obenour <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>

2022-02-03 08:23:32 +01:00

..

evtchn.h

License cleanup: add SPDX license identifier to uapi header files with a license

2017-11-02 11:20:11 +01:00

gntalloc.h

xen/gntalloc: use types from linux/types.h in userspace headers

2015-10-23 14:20:44 +01:00

gntdev.h

Improve docs for IOCTL_GNTDEV_MAP_GRANT_REF

2022-02-03 08:23:32 +01:00

privcmd.h

xen/privcmd: add IOCTL_PRIVCMD_MMAP_RESOURCE

2018-05-14 15:25:37 +02:00