From: Joerg Roedel <jroedel@suse.de>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH] iommu/vt-d: Allocate reserved region for ISA with correct permission
Date: Tue, 17 Dec 2019 11:48:38 +0100 [thread overview]
Message-ID: <20191217104838.GC28651@suse.de> (raw)
In-Reply-To: <3a9bcdc5-9e78-945d-f6e4-5af6829bf4f0@linux.intel.com>
On Sun, Dec 15, 2019 at 01:39:31PM +0800, Lu Baolu wrote:
> Hi,
>
> On 12/13/19 1:36 PM, Jerry Snitselaar wrote:
> > Currently the reserved region for ISA is allocated with no
> > permissions. If a dma domain is being used, mapping this region will
> > fail. Set the permissions to DMA_PTE_READ|DMA_PTE_WRITE.
> >
> > Cc: Joerg Roedel <jroedel@suse.de>
> > Cc: Lu Baolu <baolu.lu@linux.intel.com>
> > Cc: iommu@lists.linux-foundation.org
> > Cc: stable@vger.kernel.org # v5.3+
> > Fixes: d850c2ee5fe2 ("iommu/vt-d: Expose ISA direct mapping region via iommu_get_resv_regions")
> > Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
>
> This fix looks reasonable to me.
>
> Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Applied for v5.5, thanks.
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prev parent reply other threads:[~2019-12-17 10:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-13 5:36 [PATCH] iommu/vt-d: Allocate reserved region for ISA with correct permission Jerry Snitselaar
2019-12-14 1:42 ` Lu Baolu
2019-12-15 5:38 ` Lu Baolu
2019-12-15 5:39 ` Lu Baolu
2019-12-17 10:48 ` Joerg Roedel [this message]
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