On Tue, May 23, 2017 at 12:29:09AM +0000, Douglas Su wrote:
> I used to develop and test kernel driver in virtual box with full Linux Debian installed. It works but not efficient due to that I have to install a full functional Linux distribution.
>
> Previously, in this mail list, I noted some friends said that to accelerate the development process by using QEMU, a lightweight and fast VM than QEMU. After some searching works, however, I barely find any reading material or tutorial about the details of using QEMU in kernel development, especially the driver development.
>
> Can anyone give a clue?
You can use the following command
$ qemu-system-x86_64
-kernel arch/x86_64/boot/bzImage
-drive
-file=/path/to/qemu-image.img,index=0,media=disk,format=raw
-append "root=/dev/sda console=ttyS0"
--enable-kvm
--nographic
You can run this command from the root directory of whichever kernel
tree you are hacking on. I can't remember how I built/got the QEMU
image though. There are tutorials online about creating a QEMU image.
Hope this helps,
Tobin.
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