Kernel test setup

Kernel test setup

[Itaru Kitayama]

Hi Alison, all,

Your comments cleared up my incorrect assumption (in order for meson test —suite cxl to success, CXL device emulation is required):

https://lore.kernel.org/linux-cxl/aC_rWIc9TY5F2wGf@aschofie-mobl2.lan/

Now I wonder, thanks to Jonathan’s QEMU series being proposed to upstream, if it is possible to test the CXL “next" kernel in a fully CXL devices emulated environment be it on arm/virt or q35 machine. What do you think?

Itaru.

Re: Kernel test setup

[Dave Jiang]

On 6/1/25 3:03 PM, Itaru Kitayama wrote:
> Hi Alison, all,
> 
> Your comments cleared up my incorrect assumption (in order for meson test —suite cxl to success, CXL device emulation is required):
> 
> https://lore.kernel.org/linux-cxl/aC_rWIc9TY5F2wGf@aschofie-mobl2.lan/
> 
> Now I wonder, thanks to Jonathan’s QEMU series being proposed to upstream, if it is possible to test the CXL “next" kernel in a fully CXL devices emulated environment be it on arm/virt or q35 machine. What do you think?

I think a new group of tests are needed if we (the community) want tests against QEMU emulation. I would love to see that addition to add more robustness to kernel CXL regression testing. The current tests are written exclusively for cxl_test. There are certain design choices made and certain test cases specifically created by cxl_test to exercise kernel paths. As always, patches are welcome to augment CXL CLI package testing. :)

> 
> Itaru.