Messages in this thread | | | Date | Sun, 28 Oct 2007 12:48:56 -0700 | From | Arjan van de Ven <> | Subject | Re: [PATCH] Align PCI memory regions to page size (4K) - Fix |
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On Sun, 28 Oct 2007 13:27:27 -0400 "Barak Fargoun" <barak@neocleus.com> wrote:
> Sorry, my mail client corrupted the previous mail containing the > patch... it should be ok now... > > Add a boot parameter (‘pci-mem-align’) which forces PCI memory > regions to be aligned to 4K. > > This is very useful when developing an hypervisor, since in case we > want to let native domains direct access to specific hardware, we > don’t want PCI devices to share their memory region page with other > devices. In Xen for example, PCI devices mmio resources are mapped by > remapping complete pages (by Intel VT-d & the Neocleus pass-through > patch for Xen). > > Signed-off-by: Barak Fargoun (barak@neocleus.com) > --- > Kernel version: 2.6.18 (since this is the kernel version used > in Xen for Dom-0) ---
I appreciate that Xen is about 2 years behind the curve and only uses 2.6.18, but what do you expect us on this list to do with this patch? 2.6.18 is no longer maintained: it doesn't get -stable updates anymore. (And if it did, I doubt this kind of change would be suitable for a -stable release anyway)...
so the first step really is to make a patch against 2.6.24-rc or a later git version.... because then and only then is your patch something that anyone else here can DO something with ...
(it's like the tree in the forest... if a tree falls in a forest, but everyone moved to a different forest 2 years ago, does it make a sound?)
Greetings, Arjan van de Ven
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