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authorAyan Kumar Halder2021-11-10 16:03:45 +0000
committerStefano Stabellini2021-11-10 12:05:38 -0800
commit4435825070fe062bb5576e9e048883191c0d87b7 (patch)
tree326dd1bb6cca9c7db85678b13260a679d8494aba
parentc3ae3077b9489c105089592d59b146c456f5ed6b (diff)
Enable setting xen,passthrough
Add an option 'XEN_PASSTHROUGH_PATHS' to the imagebuilder config file. It takes a list of device paths (separated by spaces) which needs to be marked with xen,passthrough. Signed-off-by: Ayan Kumar Halder <ayankuma@xilinx.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
-rw-r--r--README.md4
-rwxr-xr-xscripts/uboot-script-gen5
2 files changed, 9 insertions, 0 deletions
diff --git a/README.md b/README.md
index 184ceef..1695c56 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,7 @@ LOAD_CMD="tftpb"
DEVICE_TREE="mpsoc.dtb"
XEN="xen"
XEN_CMD="console=dtuart dtuart=serial0 dom0_mem=1G dom0_max_vcpus=1 bootscrub=0 vwfi=native sched=null"
+XEN_PASSTHROUGH_PATHS="/axi/ethernet@ff0e0000 /axi/serial@ff000000"
DOM0_KERNEL="Image-dom0"
DOM0_CMD="console=hvc0 earlycon=xen earlyprintk=xen clk_ignore_unused"
DOM0_RAMDISK="dom0-ramdisk.cpio"
@@ -86,6 +87,9 @@ Where:
- XEN_CMD specifies the command line arguments used for Xen. If not
set, the default one will be used.
+- XEN_PASSTHROUGH_PATHS specifies the passthrough devices (separated
+ by spaces). It adds "xen,passthrough" to the corresponding dtb nodes.
+
- DOM0_KERNEL specifies the Dom0 kernel file to load.
- DOM0_CMD specifies the command line arguments for Dom0's Linux
diff --git a/scripts/uboot-script-gen b/scripts/uboot-script-gen
index 66bcad7..4f9c04a 100755
--- a/scripts/uboot-script-gen
+++ b/scripts/uboot-script-gen
@@ -133,6 +133,11 @@ function xen_device_tree_editing()
dt_set "/chosen/dom0-ramdisk" "reg" "hex" "0x0 $ramdisk_addr 0x0 $(printf "0x%x" $ramdisk_size)"
fi
+ for devpath in $XEN_PASSTHROUGH_PATHS
+ do
+ dt_set "$devpath" "xen,passthrough" "str_a"
+ done
+
i=0
while test $i -lt $NUM_DOMUS
do