On Wed, Mar 11, 2015 at 11:12:25AM -0400, Tom Rini wrote:
- PGP Signed by an unknown key
On Mon, Mar 09, 2015 at 08:00:18AM +0100, Jan Kiszka wrote:
In this case the secure code lives in RAM, and hence the memory node in the device tree needs to be adjusted. This avoids that the OS will map and possibly access the reservation.
Add support for setting CONFIG_ARMV7_SECURE_RESERVE_SIZE to carve out such a region. We only support cutting off memory from the beginning or the end of a RAM bank as we do not want to increase their number (which would happen if punching a hole) for simplicity reasons
This will be used in a subsequent patch for Jetson-TK1.
Signed-off-by: Jan Kiszka jan.kiszka@siemens.com
arch/arm/cpu/armv7/virt-dt.c | 29 +++++++++++++++++++++++++++++
My concern here is that this looks a lot like things we would re-use on armv8 and we're making them potentially needlessly v7-centric. If nothing else, the function names should be generic and this be the v7 implementation of them, yes?
In my opinion it's fine to go along with this and then refactor things once we have an ARMv8 board that makes use of this.
Thierry