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xen/arm64: head: Don't set x22 and update the documentation
authorJulien Grall <jgrall@amazon.com>
Fri, 12 Aug 2022 19:24:40 +0000 (20:24 +0100)
committerJulien Grall <julien@xen.org>
Wed, 31 Aug 2022 19:10:47 +0000 (20:10 +0100)
commit471721c341cb56487324410f501b7f012d313e0e
treeaf06416a990d754de81fc7793ec8d4a4554beefftree | snapshot
parentace403022358b736755e3042e949540e775c65f1commit | diff
xen/arm64: head: Don't set x22 and update the documentation

Since commit 7e14a47e7c73 ("xen/arm64: head Rework and document
launch()"), the boot code is setting x22 but not read it.

So remove the two instructions setting x22 and update the documentation
to show x22 has no specific purpose.

Signed-off-by: Julien Grall <jgrall@amazon.com>
Reviewed-by: Bertrand Marquis <bertrand.marquis@arm.com>
Reviewed-by: Wei Chen <Wei.Chen@arm.com>
xen/arch/arm/arm64/head.S diff | blob | history
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