Messages in this thread | | | Date | Thu, 21 Oct 2010 07:38:21 -0700 | From | Vernon Mauery <> | Subject | Re: [Patch] IBM Real-Time "SMI Free" mode driver -v7 |
| |
On 21-Oct-2010 03:25 PM, Matthew Garrett wrote: >On Thu, Oct 21, 2010 at 07:23:19AM -0700, Vernon Mauery wrote: >> On 21-Oct-2010 02:54 PM, Matthew Garrett wrote: >>> Applied, thanks. It'd be nice if we didn't have to rely on DMI, >>> especially since enterprise customers often end up running later kernels >> >> I am not sure what you mean here by problems with DMI running later >> kernels. > >Oops, sorry! I mean running on older kernels.
Do older kernels not have DMI support? I would think that if an enterprise distribution wanted this driver they would likely already have DMI support backported as well.
Or they can work with me to find a way that works in that kernel. I was thinking that in the current (and future) kernel, DMI was the best way to go.
>>> - is there any other way to determine that this is safe to load? Could >> >> I can't think of anything off the top of my head that would allow us to >> ensure that this is only loaded on IBM systems. DMI is pretty good >> about that. > >I'd suggest using DMI to verify that it's an IBM, and perhaps also using >DMI to check that it's a server or blade rather than a laptop or >desktop. After that you could just check the ebda rather than having to >have an entry for every specific machine.
I went for a better safe than sorry route. Before I added the DMI checking I had some reports of this getting loaded on non-IBM hardware and it came up with some nasty error messages. I figured since I knew exactly which platforms have support, I could just limit the driver to those. Then there is the force parameter that allows a user to ignore the DMI data and try to load the driver anyway.
--Vernon
| |