Hi,
On 10/26/23 02:11, Lukas Wunner wrote:
This has recently been brought up internally at Intel and nobody could
understand why there's a whitelist in the first place. A long-time PCI
architect told me that Intel silicon validation has been testing P2PDMA
at least since the Lindenhurst days,
On 2023-10-25 11:35, Bjorn Helgaas wrote:
> On Wed, Oct 25, 2023 at 07:11:26PM +0200, Lukas Wunner wrote:
>> On Wed, Oct 25, 2023 at 10:30:07AM -0600, Logan Gunthorpe wrote:
>>> In addition to the above, P2PDMA transfers are only allowed by the
>>> kernel for traffic that flows through certain
[Public]
> -Original Message-
> From: Logan Gunthorpe
> Sent: Wednesday, October 25, 2023 12:30 PM
> To: Uwe Kleine-König ; Bjorn Helgaas
>
> Cc: Simon Richter ; 1015...@bugs.debian.org; linux-
> p...@vger.kernel.org; Deucher, Alexander ;
> Krzysztof Wilczyński ; Emanuele Rocca
>
On Wed, Oct 25, 2023 at 07:11:26PM +0200, Lukas Wunner wrote:
> On Wed, Oct 25, 2023 at 10:30:07AM -0600, Logan Gunthorpe wrote:
> > In addition to the above, P2PDMA transfers are only allowed by the
> > kernel for traffic that flows through certain host bridges that are
> > known to work. For
On Wed, Oct 25, 2023 at 10:30:07AM -0600, Logan Gunthorpe wrote:
> In addition to the above, P2PDMA transfers are only allowed by the
> kernel for traffic that flows through certain host bridges that are
> known to work. For AMD, all modern CPUs are on this list, but for Intel,
> the list is very
On 2023-10-25 00:19, Uwe Kleine-König wrote:
> Hello,
>
> in https://bugs.debian.org/1015871 the Debian kernel team got a request
> to enable PCI_P2PDMA. Given the description of the feature and also the
> "If unsure, say N." I wonder if you consider it safe to enable this
> option.
I don't
Hello,
in https://bugs.debian.org/1015871 the Debian kernel team got a request
to enable PCI_P2PDMA. Given the description of the feature and also the
"If unsure, say N." I wonder if you consider it safe to enable this
option.
Assuming this option isn't completely free of security concerns, a
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