On Tue, Apr 01, 2008 at 10:20:49AM -0500, Anthony Liguori wrote: > Which is apparently entirely unnecessary as we already have > /sys/bus/pci/.../region. It's just a matter of checking if a vma is VM_IO > and then dealing with the subsequent reference counting issues as Avi > points out.
Do you need to map it in userland too, isn't it enough to map it in the sptes? For the ram I had to map it in userland too with /dev/mem, and then I used the pte_pfn to fill the spte, so the emulated qemu drivers can input/output. But for the mmio space I doubt the userland side is needed. If you add a direct memslot (new bitflag type) I will use it too instead of catching get_user_pages failures and walking ptes on the RAM pieces overwritten by /dev/mem. ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
