Re: [xen-devel][PATCH] PV driver compatibility

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 22/01/2010 08:43, "Ian Campbell" <Ian.Campbell@xxxxxxxxxxxxx> wrote:

>>> 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.
> 
> Sounds good, what will the default flush setting be?

None. Those who are switching from emulated to pv should know what they are
doing and specify the module option.

> Could you swap out the 0xdead and 0xbeef for the defines which are
> specified right above the function in question while you are there?

Yep.

 -- Keir



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