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From: "joro@8bytes.org" <joro@8bytes.org>
To: "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@amd.com>
Cc: "iommu@lists.linux-foundation.org"
	<iommu@lists.linux-foundation.org>,
	Joerg Roedel <jroedel@suse.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: iommu: amd: Fix incorrect PASID decoding from event log
Date: Tue, 15 Oct 2019 14:14:24 +0200	[thread overview]
Message-ID: <20191015121424.GM14518@8bytes.org> (raw)
In-Reply-To: <1571083556-105953-1-git-send-email-suravee.suthikulpanit@amd.com>

On Mon, Oct 14, 2019 at 08:06:05PM +0000, Suthikulpanit, Suravee wrote:
> IOMMU Event Log encodes 20-bit PASID for events:
>     ILLEGAL_DEV_TABLE_ENTRY
>     IO_PAGE_FAULT
>     PAGE_TAB_HARDWARE_ERROR
>     INVALID_DEVICE_REQUEST
> as:
>     PASID[15:0]  = bit 47:32
>     PASID[19:16] = bit 19:16
> 
> Note that INVALID_PPR_REQUEST event has different encoding
> from the rest of the events as the following:
>     PASID[15:0]  = bit 31:16
>     PASID[19:16] = bit 45:42
> 
> So, fixes the decoding logic.
> 
> Fixes: d64c0486ed50 ("iommu/amd: Update the PASID information printed to the system log")
> Cc: Joerg Roedel <jroedel@suse.de>
> Cc: Gary R Hook <gary.hook@amd.com>
> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
> ---
>  drivers/iommu/amd_iommu.c       | 5 +++--
>  drivers/iommu/amd_iommu_types.h | 4 ++--
>  2 files changed, 5 insertions(+), 4 deletions(-)

Applied for v5.4, thanks Suravee.

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WARNING: multiple messages have this Message-ID (diff)
From: "joro@8bytes.org" <joro@8bytes.org>
To: "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@amd.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"iommu@lists.linux-foundation.org"
	<iommu@lists.linux-foundation.org>,
	Joerg Roedel <jroedel@suse.de>, "Hook, Gary" <Gary.Hook@amd.com>
Subject: Re: iommu: amd: Fix incorrect PASID decoding from event log
Date: Tue, 15 Oct 2019 14:14:24 +0200	[thread overview]
Message-ID: <20191015121424.GM14518@8bytes.org> (raw)
In-Reply-To: <1571083556-105953-1-git-send-email-suravee.suthikulpanit@amd.com>

On Mon, Oct 14, 2019 at 08:06:05PM +0000, Suthikulpanit, Suravee wrote:
> IOMMU Event Log encodes 20-bit PASID for events:
>     ILLEGAL_DEV_TABLE_ENTRY
>     IO_PAGE_FAULT
>     PAGE_TAB_HARDWARE_ERROR
>     INVALID_DEVICE_REQUEST
> as:
>     PASID[15:0]  = bit 47:32
>     PASID[19:16] = bit 19:16
> 
> Note that INVALID_PPR_REQUEST event has different encoding
> from the rest of the events as the following:
>     PASID[15:0]  = bit 31:16
>     PASID[19:16] = bit 45:42
> 
> So, fixes the decoding logic.
> 
> Fixes: d64c0486ed50 ("iommu/amd: Update the PASID information printed to the system log")
> Cc: Joerg Roedel <jroedel@suse.de>
> Cc: Gary R Hook <gary.hook@amd.com>
> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
> ---
>  drivers/iommu/amd_iommu.c       | 5 +++--
>  drivers/iommu/amd_iommu_types.h | 4 ++--
>  2 files changed, 5 insertions(+), 4 deletions(-)

Applied for v5.4, thanks Suravee.


  reply	other threads:[~2019-10-15 12:14 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-14 20:06 iommu: amd: Fix incorrect PASID decoding from event log Suthikulpanit, Suravee
2019-10-14 20:06 ` Suthikulpanit, Suravee
2019-10-15 12:14 ` joro [this message]
2019-10-15 12:14   ` joro

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