[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] x86 swiotlb questions
On 15/12/06 13:53, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote: > I already have patches ready to do this (the DMA thing really is a nice side > effect, I mostly wanted it for 32on64, so that I can restrict domain > allocations for 32-bit domains). Are you saying I should throw away the > DMA specialization then altogether (I already have no special DMA heap > anymore)? The leftovers from it are so that one can reserve some portion > of low memory to be returned only when the width restriction is low enough > (i.e. to retain dma_emergency_pool functionality), which certainly isn't > really appropriate anymore now (it should rather be a percentage or > something like that, so that the lower you get the more of the memory > remains reserved for specialized allocations). I think dma_emergency_pool as is can go. Possibly it should be replaced by allocator-management tools in dom0 to allow setting of limits on a per-bitwidth basis. Is this one of the patches you already sent in your 32-on-64 batch, or an additional one? -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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