: [Linux] [ARM] Granting memory obtained from
the DMA API)
On 29/08/2020 11:38, Simon Leiner wrote:
Hi Julien,
Hi Simon,
Apologies for the late answer.
On 25.08.20 15:02, Julien Grall wrote:
May I ask why did you create a new transport rather than using the
existing one?
We wanted a
Re: [Linux] [ARM] Granting memory obtained from
> the DMA API)
>
> On 29/08/2020 11:38, Simon Leiner wrote:
> > Hi Julien,
>
> Hi Simon,
>
> Apologies for the late answer.
>
> > On 25.08.20 15:02, Julien Grall wrote:
> >> May I ask why did you create a ne
On 29/08/2020 11:38, Simon Leiner wrote:
Hi Julien,
Hi Simon,
Apologies for the late answer.
On 25.08.20 15:02, Julien Grall wrote:
May I ask why did you create a new transport rather than using the
existing one?
We wanted a mechanism for dynamically creating virtio devices at
runtime. I
Hi Julien,
On 25.08.20 15:02, Julien Grall wrote:
> May I ask why did you create a new transport rather than using the
> existing one?
We wanted a mechanism for dynamically creating virtio devices at
runtime. I looked at virtio-mmio briefly and it seemed to me that a lot
of things would have to
On 20/08/2020 12:57, Simon Leiner wrote:
Hi Julien,
Hi Simon,
On 20.08.20 13:17, Julien Grall wrote:
There is a lot of interest to get Virtio working on Xen at the moment.
Is this going to be a new transport layer for Virtio?
It is designed that way, yes. The current implementation (b
On 24.08.20 22:02, Stefano Stabellini wrote:
On Fri, 21 Aug 2020, Simon Leiner wrote:
On 20.08.20 20:35, Stefano Stabellini wrote:
Thank for the well-written analysis of the problem. The following
should
work to translate the virtual address properly in xenbus_grant_ring:
if (is_vmal
On Fri, 21 Aug 2020, Simon Leiner wrote:
> On 20.08.20 20:35, Stefano Stabellini wrote:
> > Thank for the well-written analysis of the problem. The following
> should
> > work to translate the virtual address properly in xenbus_grant_ring:
> >
> > if (is_vmalloc_addr(vaddr))
> > p
On 20.08.20 20:35, Stefano Stabellini wrote:
> Thank for the well-written analysis of the problem. The following
should
> work to translate the virtual address properly in xenbus_grant_ring:
>
> if (is_vmalloc_addr(vaddr))
> page = vmalloc_to_page(vaddr);
> else
>
On Thu, 20 Aug 2020, Julien Grall wrote:
> > Part of virtio is having shared memory. So naturally, I'm using Xen's
> > grant system for that. Part of the Xenbus client API is the function
> > xenbus_grant_ring which, by its documentation grants access to a block
> > of memory starting at vaddr to a
Hi Julien,
On 20.08.20 13:17, Julien Grall wrote:
> There is a lot of interest to get Virtio working on Xen at the moment.
> Is this going to be a new transport layer for Virtio?
It is designed that way, yes. The current implementation (based on
virtio_mmio.c) has a few limitations:
- Only the
On 19/08/2020 12:04, Simon Leiner wrote:
Hi everyone,
Hi Simon,
I'm working on a virtio driver for the Linux kernel that supports the
dynamic connection of devices via the Xenbus (as part of a research
project at the Karlsruhe Institute of Technology).
There is a lot of interest to get
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