meta-agl-jailhouse: Add support for RPi4 with 2G/4G/8G of memoryjellyfish_9.99.3jellyfish/9.99.39.99.3

The Jailhouse configuration files had to be modified to append the additional
memory regions present on the higher mem variants of the RPi4.

To avoid the use of mem= kernel parameter to fix the memory that can be used
by the root cell, a device tree overlay with reserved-memory nodes is used
instead.

To avoid conflict with the GPU memory, the memory region used for Jailhouse
and the non-root cells was moved from 0x30000000 to 0x20000000.

Bug-AGL: SPEC-3507

Signed-off-by: Jakub Luzny <jakub@luzny.cz>
Change-Id: Iabd67504c3df0349dd62e45f12d1019de14328f1

1 files changed, 4 insertions, 0 deletions

diff --git a/meta-agl-jailhouse/dynamic-layers/raspberrypi/recipes-bsp/bootfiles/rpi-config_git.bbappend b/meta-agl-jailhouse/dynamic-layers/raspberrypi/recipes-bsp/bootfiles/rpi-config_git.bbappend
index 178c982a..687980cf 100644
--- a/meta-agl-jailhouse/dynamic-layers/raspberrypi/recipes-bsp/bootfiles/rpi-config_git.bbappend
+++ b/meta-agl-jailhouse/dynamic-layers/raspberrypi/recipes-bsp/bootfiles/rpi-config_git.bbappend
@@ -21,6 +21,10 @@ do_deploy_append_raspberrypi4() {
     echo "# Enable CAN (Waveshare RS485 CAN HAT)" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
     echo "dtoverlay=mcp2515-can0,oscillator=8000000,interrupt=25,spimaxfrequency=1000000" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
 
+    # memory reserved for Jailhouse
+    echo "dtoverlay=jailhouse-memory" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+    echo "dtoverlay=jailhouse-memory,start=0xe0000000,size=0x200000" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+
 
 }