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From: Anthony Liguori <aliguori-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
To: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	Jerone Young <jyoung5-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>,
	Hollis Blanchard
	<hollisb-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH] Use a table to dispatch IO requests in kvmctl
Date: Wed, 10 Oct 2007 08:24:40 -0500	[thread overview]
Message-ID: <470CD298.8060704@us.ibm.com> (raw)
In-Reply-To: <470C7BDC.7020106-atKUWr5tajBWk0Htik3J/w@public.gmane.org>

Avi Kivity wrote:
> Anthony Liguori wrote:
>   
>> This patch attempts to clean up kvmctl so that it can be more easily made to
>> work for multiple architectures and to support more emulation.
>>
>> It introduces a io dispatch mechanism.  This mechanism supports subpage
>> granularity but is optimized to efficiently cover regions of pages too.  It's
>> a 64-bit address space that's structured as a 5-level table.
>>   
>>     
>
>
> Why not use a simple array?
>   

For MMIO too?

QEMU uses an array for PIO but a table for MMIO.  I figured it would be 
best to just use the same table.

Regards,

Anthony Liguori


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  parent reply	other threads:[~2007-10-10 13:24 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-09 21:40 [PATCH] Use a table to dispatch IO requests in kvmctl Anthony Liguori
     [not found] ` <11919660094186-git-send-email-aliguori-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2007-10-09 22:10   ` Anthony Liguori
2007-10-10  6:46   ` Hollis Blanchard
2007-10-10  7:14   ` Avi Kivity
     [not found]     ` <470C7BDC.7020106-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-10 13:24       ` Anthony Liguori [this message]
     [not found]         ` <470CD298.8060704-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2007-10-10 13:25           ` Avi Kivity
     [not found]             ` <470CD2CD.5090903-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-10 13:42               ` Anthony Liguori
     [not found]                 ` <470CD6D3.8080805-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2007-10-10 13:47                   ` Avi Kivity
     [not found]                     ` <470CD7EA.3040500-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-10 13:59                       ` Anthony Liguori

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