On Wed, 21 Jul 2010 10:13:34 -0700 Alok Kataria <akataria@xxxxxxxxxx> wrote: > > Basically, you want to add hot-plug memory and enable swiotlb, right? > > Not really, I am planning to do something like this, > > @@ -52,7 +52,7 @@ int __init pci_swiotlb_detect(void) > > /* don't initialize swiotlb if iommu=off (no_iommu=1) */ > #ifdef CONFIG_X86_64 > - if (!no_iommu && max_pfn > MAX_DMA32_PFN) > + if (!no_iommu && (max_pfn > MAX_DMA32_PFN || hotplug_possible())) > swiotlb = 1; Always enable swiotlb with memory hotplug enabled? Wasting 64MB on a x86_64 system with 128MB doesn't look to be a good idea. I don't think that there is an easy solution for this issue though. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
