On Fri, Oct 24, 2014 at 11:54 AM, Mark Rutland [off-list ref] wrote:

On Fri, Oct 24, 2014 at 12:10:58AM +0100, Geoff Levand wrote:

quoted

Change any reference of device tree '/memreserve/' entries in the arm64
booting.txt to refer to 'reserved-memory nodes'.  Reserved-memory nodes
are the preferred method of specifying reserved memory.

Per my comments on patch 5, I don't think this change is sufficient.

However, we should probably update the document to allow reserved-memory
nodes.

On an unrelated note we probably need to work out how reserved-memory
interacts with the UEFI memory map -- unmappable regions shouldn't be
described by UEFI and I hope people don't use reserved-memory as a
workaround for broken UEFI tables.

When booting with UEFI, the boot stub will clear out all memory nodes
and (should) clear out reserved regions so that the kernel can use the
UEFI memory map as authoritative.

g.