Messages in this thread | | | Date | Thu, 5 Nov 2009 20:23:15 +0100 | From | Pavel Machek <> | Subject | Re: [PATCH 1/4] x86/amd-iommu: Workaround for erratum 63 |
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On Thu 2009-10-29 17:50:09, Joerg Roedel wrote: > There is an erratum for IOMMU hardware which documents > undefined behavior when forwarding SMI requests from > peripherals and the DTE of that peripheral has a sysmgt > value of 01b. This problem caused weird IO_PAGE_FAULTS in my > case.
This should go to comment.
> + > + > +void amd_iommu_apply_erratum_63(u16 devid) > +{ > + int sysmgt; > +
...that should go here. Pointer to pdf with erratum would be cool, too. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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