Using Virtio-gpio in guest VM
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shibi590268@...
Hello,
I need to use two gpio pins from a VM. I used -s 10,virtio-gpio,@gpiochip0{11=pin0:12=pin1} \ in the launch scripts. The kernel boots up successfully with a new pci device added 00:0a.0 PIC: Intel Corporation Device 8609. The device is getting listed as PIC: Intel Corporation Device 8609. is this correct? But i couldn't find the gpio device listed under /dev/ ls /dev/gpio
ls: cannot access '/dev/gpio': No such file or directory
or in /sys/class/gpio ls /sys/class/gpio/
export unexport
ls /sys/bus/gpio/devices/
ubunturt@ubunturt-Standard-PC-i440FX-PIIX-1996:~$
I couldn't find virtio-gpio module in kernel. So I used a patch from https://lkml.iu.edu/hypermail/linux/kernel/2108.1/01975.html. But still i am not successful in this. Is there anything that i am missing? Is there any patch recommendation available that could be used. User VM: ubuntu Service VM : ubuntu I am using ACRN hypervisor: v2.8 |
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