arm64: Convert dts to use reserved-memory nodes

Device tree regions described by /memreserve/ entries are not available in
/proc/device-tree, and hence are not available to user space utilities that use
/proc/device-tree.  In order for these regions to be available, convert any
arm64 DTS files using /memreserve/ entries to use reserved-memory nodes.

This change is required for kexec re-boot to work properly when a user does not
specify a second stage DTB via the kexec --dtb option.  When the --dtb option is
not specified kexec will prepare the second stage DTB using data from

Signed-off-by: Geoff Levand <>
1 file changed