Re: [PATCH 1/1] x86/iommu: use bit structures for context_entry

From: Joerg Roedel
Date: Tue Jan 07 2014 - 09:41:23 EST


On Fri, Dec 20, 2013 at 04:45:01PM +0800, Li, Zhen-Hua wrote:
> There is a structure named context_entry used by intel iommu, and there
> are some bit operations on it. Use bit structure may make these operations
> easy.
> Also the function context_set_address_root may cause problem because it uses
> |= operation, not set the new value. And this patch can fix it.

What is the problem you are trying to fix here? Is it an actual bug?


Joerg


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