• Jan Kiszka's avatar
    virt-dt: Allow reservation of secure region when in a RAM carveout · d6b72da0
    Jan Kiszka authored
    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: default avatarJan Kiszka <jan.kiszka@siemens.com>
    Signed-off-by: default avatarTom Warren <twarren@nvidia.com>
armv7.h 4.38 KB