Re: [PATCH] MSI: check for BIOS assigned addresses

Ingo Molnar
2009-03-06T16:24:35Z

* Daniel Yeisley <dan.yeisley@unisys.com> wrote:

> When creating MSI addresses the kernel makes them up and
> writes them to the hardware without first checking for what
> the system BIOS may have assigned. The patch below checks for
> already assigned values, and leaves them alone if they exist.
>
> Signed-off-by: Dan Yeisley <dan.yeisley@unisys.com>

What happens without this fix - do you get non-working cards?
Boot hang? Or a suboptimal layout?

Ingo