How to test a small kernel in a VM?

Say I developed 开发者_JS百科a small kernel and I wanted to try it out in a VM.

If I have the kernel image, how would I get it into a VM in VirtualBox, for example? More importantly, how do I get a bootloader like Grub installed into the VM?

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I think the easiest way might be to install some version of Linux, and then edit your grub config files to add in your own kernel, Add it as another boot option.