Messages in this thread | | | Date | Wed, 28 Nov 2012 11:47:49 +0800 | From | Tang Chen <> | Subject | Re: [PATCH v2 0/5] Add movablecore_map boot option |
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On 11/27/2012 11:10 AM, wujianguo wrote: > > Hi Tang, > DMA address can't be set as movable, if some one boot kernel with > movablecore_map=4G@0xa00000 or other memory region that contains DMA address, > system maybe boot failed. Should this case be handled or mentioned > in the change log and kernel-parameters.txt?
Hi Wu,
I think we can use MAX_DMA_PFN and MAX_DMA32_PFN to prevent setting DMA address as movable. Just ignore the address lower than them, and set the rest as movable. How do you think ?
And, since we cannot figure out the minimum of memory kernel needs, I think for now, we can just add some warning into kernel-parameters.txt.
Thanks. :)
> > Thanks, > Jianguo Wu >
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