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From: Keir Fraser <keir.xen@gmail.com>
To: Tim Deegan <Tim.Deegan@citrix.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
	"Kay, Allen M" <allen.m.kay@intel.com>
Subject: Re: RE: [PATCH] [RFC] VT-d: always clean up dpci timers.
Date: Mon, 25 Jul 2011 15:47:59 +0100	[thread overview]
Message-ID: <CA5340AF.1E7DB%keir.xen@gmail.com> (raw)
In-Reply-To: <20110725142120.GD8970@whitby.uk.xensource.com>

On 25/07/2011 15:21, "Tim Deegan" <Tim.Deegan@citrix.com> wrote:

>> Could we make need_iommu(d) sticky? Being able to clear it doesn't seem an
>> important case (such a domain is probably being torn down anyway) and
>> clearly it can lead to fragility. The fact that presumably we'd end up doing
>> unnecessary IOMMU PT work for the remaining lifetime of the domain doesn't
>> seem a major downside to me.
> 
> If you prefer it that way.  TBH I think I prefer the other way though:
> things that gate on need_iommu() should be cleaned up by
> iommu->teardown().

Is your original patch still proposed as a valid alternative to this one?

 -- Keir

  reply	other threads:[~2011-07-25 14:47 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-18 16:38 [PATCH] [RFC] VT-d: always clean up dpci timers Tim Deegan
2011-07-21  1:08 ` Kay, Allen M
2011-07-21  8:50   ` Tim Deegan
2011-07-21  9:01     ` Keir Fraser
2011-07-25 14:21       ` Tim Deegan
2011-07-25 14:47         ` Keir Fraser [this message]
2011-07-25 15:04           ` Tim Deegan
2011-07-22  7:33     ` Kay, Allen M

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