From: Wei Wang2 <wei.wang2@amd.com>
To: Jan Beulich <JBeulich@novell.com>
Cc: "Ostrovsky, Boris" <Boris.Ostrovsky@amd.com>,
"Huang2, Wei" <Wei.Huang2@amd.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: [PATCH] AMD IOMMU: Fix an interrupt remapping issue (v2)
Date: Mon, 11 Apr 2011 09:39:34 +0200 [thread overview]
Message-ID: <201104110939.34840.wei.wang2@amd.com> (raw)
In-Reply-To: <4DA2C89A020000780003AD92@vpn.id2.novell.com>
On Monday 11 April 2011 09:23:38 Jan Beulich wrote:
> >>> On 08.04.11 at 18:52, Wei Wang2 <wei.wang2@amd.com> wrote:
> >
> > Jan, How dose this one look like to you?
>
> Much better, but still not quite there: The unmasking must happen
> *after* the writing of the upper half (if that's what is being modified).
>
> You could also skip the unmasking altogether if saved_mask == 1.
>
> And if you start using __io_apic_write() (which I find very desirable)
> is there a reason not to use it (and __io_apic_read()) in all of the
> other places you touch anyway, too?
>
> Jan
Good points. I will send a new version addressing the remaining issues.
Thanks,
Wei
next prev parent reply other threads:[~2011-04-11 7:39 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-08 11:35 [PATCH] AMD IOMMU: Fix an interrupt remapping issue Wei Wang2
2011-04-08 13:43 ` Jan Beulich
2011-04-08 14:26 ` Wei Wang2
2011-04-08 14:39 ` Jan Beulich
2011-04-08 15:06 ` Wei Wang2
2011-04-08 16:52 ` [PATCH] AMD IOMMU: Fix an interrupt remapping issue (v2) Wei Wang2
2011-04-11 7:23 ` Jan Beulich
2011-04-11 7:39 ` Wei Wang2 [this message]
2011-04-11 10:31 ` [PATCH V3] AMD IOMMU: Fix an interrupt remapping issue Wei Wang2
2011-04-11 11:35 ` Jan Beulich
2011-07-19 9:37 ` George Dunlap
2011-07-19 9:59 ` George Dunlap
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