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From: Joerg Roedel <joro@8bytes.org>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Will Deacon <will@kernel.org>, Ashok Raj <ashok.raj@intel.com>,
	Jacob Pan <jacob.jun.pan@linux.intel.com>,
	Guo Kaijie <Kaijie.Guo@intel.com>, Liu Yi L <yi.l.liu@intel.com>,
	iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/1] iommu/vt-d: Correctly check addr alignment in qi_flush_dev_iotlb_pasid()
Date: Thu, 28 Jan 2021 13:17:48 +0100	[thread overview]
Message-ID: <20210128121747.GK32671@8bytes.org> (raw)
In-Reply-To: <20210119043500.1539596-1-baolu.lu@linux.intel.com>

On Tue, Jan 19, 2021 at 12:35:00PM +0800, Lu Baolu wrote:
> An incorrect address mask is being used in the qi_flush_dev_iotlb_pasid()
> to check the address alignment. This leads to a lot of spurious kernel
> warnings:
> 
> [  485.837093] DMAR: Invalidate non-aligned address 7f76f47f9000, order 0
> [  485.837098] DMAR: Invalidate non-aligned address 7f76f47f9000, order 0
> [  492.494145] qi_flush_dev_iotlb_pasid: 5734 callbacks suppressed
> [  492.494147] DMAR: Invalidate non-aligned address 7f7728800000, order 11
> [  492.508965] DMAR: Invalidate non-aligned address 7f7728800000, order 11
> 
> Fix it by checking the alignment in right way.
> 
> Fixes: 288d08e780088 ("iommu/vt-d: Handle non-page aligned address")
> Reported-and-tested-by: Guo Kaijie <Kaijie.Guo@intel.com>
> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
> Cc: Liu Yi L <yi.l.liu@intel.com>
> ---
>  drivers/iommu/intel/dmar.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied for 5.11, thanks.


WARNING: multiple messages have this Message-ID (diff)
From: Joerg Roedel <joro@8bytes.org>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Ashok Raj <ashok.raj@intel.com>,
	linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
	Guo Kaijie <Kaijie.Guo@intel.com>, Will Deacon <will@kernel.org>
Subject: Re: [PATCH 1/1] iommu/vt-d: Correctly check addr alignment in qi_flush_dev_iotlb_pasid()
Date: Thu, 28 Jan 2021 13:17:48 +0100	[thread overview]
Message-ID: <20210128121747.GK32671@8bytes.org> (raw)
In-Reply-To: <20210119043500.1539596-1-baolu.lu@linux.intel.com>

On Tue, Jan 19, 2021 at 12:35:00PM +0800, Lu Baolu wrote:
> An incorrect address mask is being used in the qi_flush_dev_iotlb_pasid()
> to check the address alignment. This leads to a lot of spurious kernel
> warnings:
> 
> [  485.837093] DMAR: Invalidate non-aligned address 7f76f47f9000, order 0
> [  485.837098] DMAR: Invalidate non-aligned address 7f76f47f9000, order 0
> [  492.494145] qi_flush_dev_iotlb_pasid: 5734 callbacks suppressed
> [  492.494147] DMAR: Invalidate non-aligned address 7f7728800000, order 11
> [  492.508965] DMAR: Invalidate non-aligned address 7f7728800000, order 11
> 
> Fix it by checking the alignment in right way.
> 
> Fixes: 288d08e780088 ("iommu/vt-d: Handle non-page aligned address")
> Reported-and-tested-by: Guo Kaijie <Kaijie.Guo@intel.com>
> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
> Cc: Liu Yi L <yi.l.liu@intel.com>
> ---
>  drivers/iommu/intel/dmar.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied for 5.11, thanks.

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  reply	other threads:[~2021-01-28 12:18 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-19  4:35 [PATCH 1/1] iommu/vt-d: Correctly check addr alignment in qi_flush_dev_iotlb_pasid() Lu Baolu
2021-01-19  4:35 ` Lu Baolu
2021-01-28 12:17 ` Joerg Roedel [this message]
2021-01-28 12:17   ` Joerg Roedel

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