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xen-devel
Re: [xen-devel][PATCH] PV driver compatibility
On 22/01/2010 07:31, "Ian Campbell" <Ian.Campbell@xxxxxxxxxxxxx> wrote:
> Yes, that's possible. I notice that I defined XEN_IOPORT_LINUX_PRODNUM
> and XEN_IOPORT_LINUX_DRVVER but then hardcode 0xdead and 0xbeef where
> they should be used, which suggests I wasn't quite ready to send the
> patch...
Hm, do you want to keep the deadbeef, or pick a nicer value, or remove the
patch?
> The protocol allows for coarse grained selection of which devices to
> unplug:
> 6) The drivers write a two-byte bitmask of devices to unplug to IO
> port 0x10. The defined fields are:
Well, the flexibility is nice, but not a feature that driver currently
actually uses.
My default action right now will be to add a module option to specify
selective or complete flushing, keep the patch, but only fail to load
drivers if flush is requested but not possible, otherwise just warn.
-- Keir
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