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From: Jennifer Herbert <Jennifer.Herbert@citrix.com>
To: Xen-devel <xen-devel@lists.xen.org>
Cc: Juergen Gross <jgross@suse.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>
Subject: Re: [Xen-devel] [PATCH] AMD/IOMMU: Fix passthrough following c/s d7cfeb7c13e
Date: Thu, 14 Nov 2019 11:45:09 +0000	[thread overview]
Message-ID: <5DCD3E45.80505@citrix.com> (raw)
In-Reply-To: <20191111205514.2779-1-andrew.cooper3@citrix.com>


On 11/11/19 20:55, Andrew Cooper wrote:
> "AMD/IOMMU: don't blindly allocate interrupt remapping tables" introduces a
> call at runtime from amd_iommu_add_device() to amd_iommu_set_intremap_table()
> which is still marked as __init.
>
> On one AMD Rome machine we have, this results in a crash the moment we try to
> use an SR-IOV VF in a VM.
>
> Reported-by: Jennifer Herbert <jennifer.herbert@citrix.com>
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>


Tested-by: Jennifer Herbert <jennifer.herbert@citrix.com>

This fixes the fatal page fault I found, which wasn't seen on 4.11.

Cheers,

-Jenny



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      parent reply	other threads:[~2019-11-14 11:45 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-11 20:55 [Xen-devel] [PATCH] AMD/IOMMU: Fix passthrough following c/s d7cfeb7c13e Andrew Cooper
2019-11-12  8:39 ` Jan Beulich
2019-11-12  8:40 ` Jürgen Groß
2019-11-14 11:45 ` Jennifer Herbert [this message]

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