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DM:Check the device file of /dev/vbs_ipu to determine IPU mode

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The /dev/vbs_ipu is used as the backend driver of IPU mediator on SOS kernel.
If the file of /dev/vbs_ipu exists, it indicates that IPU works in mediator mode.
Other it will fall back to the pass-through mode.

Tracked-on: https://github.com/projectacrn/acrn-hypervisor/issues/1373
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@intel.com>
This commit is contained in:
Zhao Yakui 2018-11-05 11:32:59 +08:00 committed by wenlingz
parent 8efd9edb82
commit 969f7cf071
1 changed files with 2 additions and 2 deletions
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4
devicemodel/samples/apl-mrb/launch_uos.sh
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@ -5,8 +5,8 @@ kernel_version=$(uname -r | awk -F. '{ printf("%d.%d", $1,$2) }')
ipu_passthrough=0 ipu_passthrough=0
# this is the temporal solution before IPU is ready on 4.19 # Check the device file of /dev/vbs_ipu to determine the IPU mode
if [ "$kernel_version" = "4.19" ]; then if [ ! -f "/dev/vbs_ipu" ]; then
ipu_passthrough=1 ipu_passthrough=1
fi fi