Re: [PATCH v7 24/27] x86: Add swiotlb force off support

[H. Peter Anvin]

On 12/21/2012 07:23 PM, Eric W. Biederman wrote:
> 
> In this case YH has been working on the case of loading a kernel
> completely above 4G, and apparently he has also been testing the case of
> running a kernel with no memory below 4G.
> 

It is worth noting that we cannot run with *no* memory below 4G -- it is
not possible to run SMP at least without some memory below the 1M mark.

	-hpa


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