Raspberry 4: XEN support

Added the support for DOM0 in raspberry pi4. The feature agl-virt-xen should be enabled to activate this code.

1512 MB of memory is used for DOM0 machine.

There are limitations:
	- brcmfmac module disabled (bluethooth and Wifi) due to the crash
	- total_memory is set to the 3Gb, as it impacts the USB ports on rasbperry pi4 on Linux kernel 4.19

v2 (jsmoeller): make changes in virtualization-layer conditional to raspberrypi4

Bug-AGL: SPEC-3259
Change-Id: I873fbf1f5498e31ae5f468407502f16e1873f7fc
Signed-off-by: Leonid Lazarev <leonid.lazarev@mera.com>
Signed-off-by: Jan-Simon Möller <jsmoeller@linuxfoundation.org>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/24522
Tested-by: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-build: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-boot-test: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/meta-agl-bsp/virtualization-layer/recipes-extended/xen/xen-mkimage-rpi4.bb b/meta-agl-bsp/virtualization-layer/recipes-extended/xen/xen-mkimage-rpi4.bb
new file mode 100644
index 000000000..ae8fe71b6
--- /dev/null
+++ b/meta-agl-bsp/virtualization-layer/recipes-extended/xen/xen-mkimage-rpi4.bb
@@ -0,0 +1,29 @@
+DESCRIPTION = "Xen hypervisor u-boot image"
+LICENSE = "GPLv2"
+SECTION = "console/tools"
+
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/GPL-2.0;md5=801f80980d171dd6425610833a22dbe6"
+
+
+
+ALLOW_EMPTY_${PN} = "1"
+FILES_${PN} = ""
+S = "${WORKDIR}"
+
+DEPENDS = "u-boot-mkimage-native "
+
+# Only for aarch64
+COMPATIBLE_MACHINE = "(-)"
+COMPATIBLE_MACHINE_aarch64 = "(.*)"
+
+PACKAGE_ARCH = "${MACHINE_ARCH}"
+
+do_configure[noexec] = "1"
+do_deploy[noexec] = "1"
+
+do_compile[depends] += "xen:do_deploy"
+
+# Uboot compatible image
+do_compile () {
+        uboot-mkimage -A arm64 -C none -T kernel -a 0x48080000 -e 0x48080000 -n "XEN" -d ${DEPLOY_DIR_IMAGE}/xen-${MACHINE} ${DEPLOY_DIR_IMAGE}/xen-${MACHINE}.uImage
+}