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Re: [Libreboot] message during boot: "DMAR: Failed to map dmar2"
From: |
Bruno Dantas |
Subject: |
Re: [Libreboot] message during boot: "DMAR: Failed to map dmar2" |
Date: |
Fri, 13 Nov 2015 10:14:07 -0500 |
Daniel,
Thank you for this immensely helpful information.
> Nowadays you can do it the old way, but better now: the operative system
> is able to do this mapping dynamicly. It can change this mapping, and
> it's great, because OS knows which previous hardware had and which ports
> it was connected to.
If this dynamic interrupt mapping is the main thing I'm losing by using
intremap=off, then I'm not too concerned because I currently do not plan on
changing any of the laptop's hardware.
However, if I *were* to change some hardware in the future (e.g., RAM upgrade
or new hard drive), the laptop would obviously be off so presumably I wouldn't
need *dynamic* interrupt remapping. Would Libreboot see the new hardware during
the next boot and automatically do the interrupt mapping? I hope I would not
need to make manual changes to Libreboot or to interrupt maps if I decided to
make a small hardware upgrade.
> Is my hardware broken? not necessarly.
> Im going to have problems? probably not.
Good to know!
Cheers,
Bruno