>OK, so that's really just another variant of the existing problem we have with
>certain PCI root complexes with restrictive inbound windows.
>The appropriate way to handle that is to reserve the unusable areas of the
>IOVA space up-front.
> Since the support for the ACPI equivalent of
>OK, so that's really just another variant of the existing problem we have with
>certain PCI root complexes with restrictive inbound windows.
>The appropriate way to handle that is to reserve the unusable areas of the
>IOVA space up-front.
> Since the support for the ACPI equivalent of
ay, September 1, 2017 2:43 AM
> To: Joerg Roedel <j...@8bytes.org>; Krishna Reddy <vdu...@nvidia.com>
> Cc: io...@lists.linux-foundation.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH] iommu/dma: limit the IOVA allocated to dma-ranges region
>
> On 01/
HW? Can IOVA code look for dma-ranges on its own and limit the iova top to
> lowest of mask and dma-ranges, if it is present? or any other ways you can
> think of?
>
> -KR
>
> -Original Message-
> From: Robin Murphy [mailto:robin.mur...@arm.com]
> Sent: Friday,
AM
To: Joerg Roedel <j...@8bytes.org>; Krishna Reddy <vdu...@nvidia.com>
Cc: io...@lists.linux-foundation.org; linux-kernel@vger.kernel.org
Subject: Re: [PATCH] iommu/dma: limit the IOVA allocated to dma-ranges region
On 01/09/17 10:26, Joerg Roedel wrote:
> Adding Robin for review.
>
>
Joerg Roedel ; Krishna Reddy
Cc: io...@lists.linux-foundation.org; linux-kernel@vger.kernel.org
Subject: Re: [PATCH] iommu/dma: limit the IOVA allocated to dma-ranges region
On 01/09/17 10:26, Joerg Roedel wrote:
> Adding Robin for review.
>
> On Thu, Aug 31, 2017 at 03:08:21PM -0700, Kri
On 01/09/17 10:26, Joerg Roedel wrote:
> Adding Robin for review.
>
> On Thu, Aug 31, 2017 at 03:08:21PM -0700, Krishna Reddy wrote:
>> Limit the IOVA allocated to dma-ranges specified for the device.
>> This is necessary to ensure that IOVA allocated is addressable
>> by device.
Why? IOVA
On 01/09/17 10:26, Joerg Roedel wrote:
> Adding Robin for review.
>
> On Thu, Aug 31, 2017 at 03:08:21PM -0700, Krishna Reddy wrote:
>> Limit the IOVA allocated to dma-ranges specified for the device.
>> This is necessary to ensure that IOVA allocated is addressable
>> by device.
Why? IOVA
Adding Robin for review.
On Thu, Aug 31, 2017 at 03:08:21PM -0700, Krishna Reddy wrote:
> Limit the IOVA allocated to dma-ranges specified for the device.
> This is necessary to ensure that IOVA allocated is addressable
> by device.
>
> Signed-off-by: Krishna Reddy
> ---
>
Adding Robin for review.
On Thu, Aug 31, 2017 at 03:08:21PM -0700, Krishna Reddy wrote:
> Limit the IOVA allocated to dma-ranges specified for the device.
> This is necessary to ensure that IOVA allocated is addressable
> by device.
>
> Signed-off-by: Krishna Reddy
> ---
>
10 matches
Mail list logo