Hi Stefano,
On 24/10/2023 20:52, Stefano Stabellini wrote:
On Tue, 24 Oct 2023, Bertrand Marquis wrote:
Hi Julien,
On 24 Oct 2023, at 12:28, Julien Grall <jul...@xen.org> wrote:
From: Julien Grall <jgr...@amazon.com>
In commit 9d267c049d92 ("xen/arm64: Rework the memory layout"),
we decided to require Xen to be loaded below 2 TiB to simplify
the logic to enable the MMU. The limit was decided based on
how known platform boot plus some slack.
We had a recent report that this is not sufficient on the AVA
platform with a old firmware [1]. But the restriction is not
going to change in Xen 4.18. So document the limit clearly
in docs/misc/arm/booting.txt.
[1] https://lore.kernel.org/20231013122658.1270506-3-leo....@linaro.org
Signed-off-by: Julien Grall <jgr...@amazon.com>
Reviewed-by: Michal Orzel <michal.or...@amd.com>
Reviewed-by: Bertrand Marquis <bertrand.marq...@arm.com>
Added for for-4.19
It was actually meant for 4.18 as we didn't want to include the patch to
increase the reserved area for the identity mapping [1]. But I failed to
use the proper tag.
Henry provided a release-ack and the patch is now committed.
Cheers,
[1] https://lore.kernel.org/20231013122658.1270506-3-leo....@linaro.org
--
Julien Grall
