tree eaf7d7d5f66bcade0a9fd6395d5a7b11fa06f3e1
parent 79f22013907e23053ba22e8c70cda8de08b376b3
author Jens Wiklander <jens.wiklander@linaro.org> 1573224106 +0100
committer Jérôme Forissier <jerome@forissier.org> 1576485368 +0100

core: vm_set_prot() and friends works across VM regions

Updates vm_set_prot() and friends to work on memory ranges which doesn't
necessarily align with the underlying VM regions. VM regions are split
as needed to perform the operations, with operations completed VM
regions in the supplied memory range are merged if possible. The only
restriction on a supplied memory range is that the already present
mapping is compatible with the change.

Note that this also affect pager which also splits and merges pager
areas as needed.

Acked-by: Pipat Methavanitpong <pipat.methavanitpong@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>