Re: [Xen-devel] [PATCH] [RESEND] remove redundent call tohvm_do_

To:	"Li, Xin B" <xin.b.li@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	Re: [Xen-devel] [PATCH] [RESEND] remove redundent call tohvm_do_resume
From:	Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date:	Wed, 08 Nov 2006 09:31:38 +0000
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On 8/11/06 09:04, "Li, Xin B" <xin.b.li@xxxxxxxxx> wrote:

> since this is done :-), I think hvm_do_resume can be clean up more since
> HVM vcpu can't be waked up by interrupts now.
> And you mentioned that we can batch interrupts notification hypercalls,
> so is it OK to batch IO events done notification hypercalls too?

Yes. The biggest win in qemu I suspect will be to remember the current state
of each 'interrupt wire' and only do a hypercall when the state changes.
Feel free to generate patches to maintain that shaodw state, and to do
batched multicalls.

 -- Keir

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Re: [Xen-devel] [PATCH] [RESEND] remove redundent call tohvm_do_resume