From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: xen-devel@lists.xenproject.org,
Xiantao Zhang <xiantao.zhang@intel.com>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Subject: Re: [PATCH v2 3/4] amd-iommu: disable iommu_hap_pt_share with AMD IOMMUs
Date: Wed, 23 Apr 2014 12:04:12 +0200 [thread overview]
Message-ID: <5357901C.8080705@citrix.com> (raw)
In-Reply-To: <5357AABB020000780000B497@nat28.tlf.novell.com>
On 23/04/14 11:57, Jan Beulich wrote:
>>>> On 23.04.14 at 10:16, <roger.pau@citrix.com> wrote:
>> According to the comment in p2m.h, AMD IOMMUs don't work correctly
>> with page types different than p2m_ram_rw when the p2m is shared
>> between HAP and IOMMU, so disable this sharing when using AMD IOMMUs.
>
> Doesn't this need to go before patch 2?
It could certainly go before patch 2, but I don't see such a hard
requirement in the ordering (either way AMD hardware needs both patches
to work correctly, and applying one before the other is not going to
break bisection AFAICT).
Roger.
next prev parent reply other threads:[~2014-04-23 10:04 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-23 8:16 [PATCH v2 0/4] Fix grant map/unmap with auto-translated guests Roger Pau Monne
2014-04-23 8:16 ` [PATCH v2 1/4] xen: make logdirty and iommu mutually exclusive Roger Pau Monne
2014-04-23 9:54 ` Jan Beulich
2014-04-24 7:36 ` Roger Pau Monné
2014-04-24 11:57 ` Roger Pau Monné
2014-04-24 11:50 ` Tim Deegan
2014-04-23 8:16 ` [PATCH v2 2/4] iommu: set correct IOMMU entries when iommu_hap_pt_share == 0 Roger Pau Monne
2014-04-23 9:56 ` Jan Beulich
2014-04-24 11:52 ` Tim Deegan
2014-05-08 18:38 ` Konrad Rzeszutek Wilk
2014-04-23 8:16 ` [PATCH v2 3/4] amd-iommu: disable iommu_hap_pt_share with AMD IOMMUs Roger Pau Monne
2014-04-23 9:57 ` Jan Beulich
2014-04-23 10:04 ` Roger Pau Monné [this message]
2014-04-23 10:51 ` Jan Beulich
2014-04-23 14:31 ` Roger Pau Monné
2014-04-23 14:35 ` Jan Beulich
2014-04-23 8:16 ` [PATCH v2 4/4] xen: expose that grant table mappings update the IOMMU Roger Pau Monne
2014-04-23 10:00 ` Jan Beulich
2014-04-24 7:43 ` Roger Pau Monné
2014-04-24 8:23 ` Jan Beulich
2014-05-08 18:39 ` Konrad Rzeszutek Wilk
2014-05-09 6:32 ` Jan Beulich
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