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

[Daniel Yeisley]

ACPI hotplug doesn't work.

Dan


On Fri, 2009-03-06 at 17:24 +0100, Ingo Molnar wrote:
> * Daniel Yeisley <dan.yeisley@xxxxxxxxxx> 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@xxxxxxxxxx>
> 
> What happens without this fix - do you get non-working cards? 
> Boot hang? Or a suboptimal layout?
> 
> 	Ingo

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