From: Will Deacon <will.deacon@arm.com>
To: Sricharan R <sricharan@codeaurora.org>
Cc: jcrouse@codeaurora.org, pdaly@codeaurora.org,
jgebben@codeaurora.org, joro@8bytes.org,
linux-kernel@vger.kernel.org, pratikp@codeaurora.org,
iommu@lists.linux-foundation.org, robin.murphy@arm.com,
tzeng@codeaurora.org, linux-arm-kernel@lists.infradead.org,
mitchelh@codeaurora.org, vinod.koul@intel.com
Subject: Re: [PATCH V6 6/6] iommu/arm-smmu: Set privileged attribute to 'default' instead of 'unprivileged'
Date: Tue, 6 Dec 2016 17:31:11 +0000 [thread overview]
Message-ID: <20161206173110.GT2498@arm.com> (raw)
In-Reply-To: <1480690509-13490-7-git-send-email-sricharan@codeaurora.org>
On Fri, Dec 02, 2016 at 08:25:09PM +0530, Sricharan R wrote:
> Currently the driver sets all the device transactions privileges
> to UNPRIVILEGED, but there are cases where the iommu masters wants
> to isolate privileged supervisor and unprivileged user.
> So don't override the privileged setting to unprivileged, instead
> set it to default as incoming and let it be controlled by the pagetable
> settings.
>
> Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Acked-by: Will Deacon <will.deacon@arm.com>
I'll let you and Robin sort out what you want to do with this series :)
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
To: Sricharan R <sricharan-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Cc: pdaly-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
pratikp-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
jgebben-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
tzeng-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH V6 6/6] iommu/arm-smmu: Set privileged attribute to 'default' instead of 'unprivileged'
Date: Tue, 6 Dec 2016 17:31:11 +0000 [thread overview]
Message-ID: <20161206173110.GT2498@arm.com> (raw)
In-Reply-To: <1480690509-13490-7-git-send-email-sricharan-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
On Fri, Dec 02, 2016 at 08:25:09PM +0530, Sricharan R wrote:
> Currently the driver sets all the device transactions privileges
> to UNPRIVILEGED, but there are cases where the iommu masters wants
> to isolate privileged supervisor and unprivileged user.
> So don't override the privileged setting to unprivileged, instead
> set it to default as incoming and let it be controlled by the pagetable
> settings.
>
> Signed-off-by: Sricharan R <sricharan-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Acked-by: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
I'll let you and Robin sort out what you want to do with this series :)
Will
WARNING: multiple messages have this Message-ID (diff)
From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V6 6/6] iommu/arm-smmu: Set privileged attribute to 'default' instead of 'unprivileged'
Date: Tue, 6 Dec 2016 17:31:11 +0000 [thread overview]
Message-ID: <20161206173110.GT2498@arm.com> (raw)
In-Reply-To: <1480690509-13490-7-git-send-email-sricharan@codeaurora.org>
On Fri, Dec 02, 2016 at 08:25:09PM +0530, Sricharan R wrote:
> Currently the driver sets all the device transactions privileges
> to UNPRIVILEGED, but there are cases where the iommu masters wants
> to isolate privileged supervisor and unprivileged user.
> So don't override the privileged setting to unprivileged, instead
> set it to default as incoming and let it be controlled by the pagetable
> settings.
>
> Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Acked-by: Will Deacon <will.deacon@arm.com>
I'll let you and Robin sort out what you want to do with this series :)
Will
next prev parent reply other threads:[~2016-12-06 17:31 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-02 14:55 [RESEND PATCH V6 0/6] Add support for privileged mappings Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` [RESEND PATCH V6 1/6] iommu: add IOMMU_PRIV attribute Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` [RESEND PATCH V6 2/6] iommu/io-pgtable-arm: add support for the IOMMU_PRIV flag Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` [RESEND PATCH V6 3/6] common: DMA-mapping: add DMA_ATTR_PRIVILEGED attribute Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` [RESEND PATCH V6 4/6] arm64/dma-mapping: Implement DMA_ATTR_PRIVILEGED Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` [RESEND PATCH V6 5/6] dmaengine: pl330: Make sure microcode is privileged Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-06 5:01 ` Vinod Koul
2016-12-06 5:01 ` Vinod Koul
2016-12-06 5:01 ` Vinod Koul
2016-12-02 14:55 ` [PATCH V6 6/6] iommu/arm-smmu: Set privileged attribute to 'default' instead of 'unprivileged' Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-02 14:55 ` Sricharan R
2016-12-06 17:31 ` Will Deacon [this message]
2016-12-06 17:31 ` Will Deacon
2016-12-06 17:31 ` Will Deacon
2016-12-02 16:16 ` [RESEND PATCH V6 0/6] Add support for privileged mappings Robin Murphy
2016-12-02 16:16 ` Robin Murphy
2016-12-02 16:16 ` Robin Murphy
2016-12-04 7:48 ` Sricharan
2016-12-04 7:48 ` Sricharan
2016-12-04 7:48 ` Sricharan
2016-12-06 19:14 ` Robin Murphy
2016-12-06 19:14 ` Robin Murphy
2016-12-06 19:14 ` Robin Murphy
2016-12-07 9:44 ` Sricharan
2016-12-07 9:44 ` Sricharan
2016-12-07 9:44 ` Sricharan
2016-12-12 19:34 ` Sricharan
2016-12-12 19:34 ` Sricharan
2016-12-12 19:34 ` Sricharan
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