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xen: arm: doc: Add firmware requirements
authorDirk Behme <dirk.behme@de.bosch.com>
Mon, 25 Apr 2016 15:42:54 +0000 (17:42 +0200)
committerStefano Stabellini <sstabellini@kernel.org>
Wed, 27 Apr 2016 15:44:27 +0000 (16:44 +0100)
commit7d59c1a9189549283654cd68892f7122cdd8fd14
tree42171c565c743514902916e2a487d21fcb9a9049tree | snapshot
parentc0516182ff86d77375c35517036535c0df61c7e1commit | diff
xen: arm: doc: Add firmware requirements

Add a section about what the firmware should do in EL3 before starting Xen.

E.g guest will use HVC instruction to issue hypercall. As this can be set only
at EL3, i.e. outside Xen, document this boot requirement.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
docs/misc/arm/booting.txt diff | blob | history
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