Re: [Xen-devel] [Patch] continue_hypercall_on_cpu rework using tasklets

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 13/04/2010 14:49, "Juergen Gross" <juergen.gross@xxxxxxxxxxxxxx> wrote:

>>> 1. make continue_hypercall_on_cpu available on ia64, too
>>> 2. make cpupools a pure x86 feature
>> 
>> Is there anything meaningful in the new code that's really x86-specific
>> (i.e. can't the whole code chunk be moved to xen/common/)?
> 
> My main concern is the difference in the handling of schedule_tail. I just
> can't tell how to change the ia64 variant to make it work correctly.

We were messing with schedule_tail in order to get control into the
hypercall continuation in the context of the same vcpu but on a different
pcpu. Now that you just execute the continuation in a straightforward
softirq/tasklet context, you don't need to mess with schedule_tail at all...
Right?

 -- Keir



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