On 04/30/2013 05:15 PM, Alex Williamson wrote:
On Tue, 2013-04-30 at 16:48 -0400, Don Dutile wrote:
On 04/30/2013 03:11 PM, Konrad Rzeszutek Wilk wrote:
Does vfio work with swiotlb and if not, can/should swiotlb be
extended? Or does the time and space overhead make it a moot point?
It does no
On Tue, 2013-04-30 at 16:48 -0400, Don Dutile wrote:
> On 04/30/2013 03:11 PM, Konrad Rzeszutek Wilk wrote:
> Does vfio work with swiotlb and if not, can/should swiotlb be
> extended? Or does the time and space overhead make it a moot point?
> >>>
> >>> It does not work with SWIOTLB as it
On 04/30/2013 03:11 PM, Konrad Rzeszutek Wilk wrote:
Does vfio work with swiotlb and if not, can/should swiotlb be
extended? Or does the time and space overhead make it a moot point?
It does not work with SWIOTLB as it uses the DMA API, not the IOMMU API.
I think you got it reversed. vfio us
> >>Does vfio work with swiotlb and if not, can/should swiotlb be
> >>extended? Or does the time and space overhead make it a moot point?
> >
> >It does not work with SWIOTLB as it uses the DMA API, not the IOMMU API.
> >
> I think you got it reversed. vfio uses iommu api, not dma api.
Right. Th
-foundation.org [mailto:iommu-
boun...@lists.linux-foundation.org] On Behalf Of Don Dutile
Sent: Thursday, April 25, 2013 1:11 AM
To: Alex Williamson
Cc: Yoder Stuart-B08248; iommu@lists.linux-foundation.org
Subject: Re: RFC: vfio / iommu driver for hardware with no iommu
On 04/23/2013 03:47 PM, Alex Williamson
-foundation.org [mailto:iommu-
boun...@lists.linux-foundation.org] On Behalf Of Don Dutile
Sent: Thursday, April 25, 2013 1:11 AM
To: Alex Williamson
Cc: Yoder Stuart-B08248; iommu@lists.linux-foundation.org
Subject: Re: RFC: vfio / iommu driver for hardware with no iommu
On 04/23/2013 03:47 PM, Alex Williamson
> > >>> To: Alex Williamson
> > >>> Cc: Yoder Stuart-B08248; iommu@lists.linux-foundation.org
> > >>> Subject: Re: RFC: vfio / iommu driver for hardware with no iommu
> > >>>
> > >>> On 04/23/2013 03:47 PM, Alex
boun...@lists.linux-foundation.org [mailto:iommu-
> >>> boun...@lists.linux-foundation.org] On Behalf Of Don Dutile
> >>> Sent: Thursday, April 25, 2013 1:11 AM
> >>> To: Alex Williamson
> >>> Cc: Yoder Stuart-B08248; iommu@lists.linux-foundation.org
>
.org] On Behalf Of Don Dutile
>>> Sent: Thursday, April 25, 2013 1:11 AM
>>> To: Alex Williamson
>>> Cc: Yoder Stuart-B08248; iommu@lists.linux-foundation.org
>>> Subject: Re: RFC: vfio / iommu driver for hardware with no iommu
>>>
>>> On 04/23/2013 0
@lists.linux-foundation.org
Subject: Re: RFC: vfio / iommu driver for hardware with no iommu
On 04/23/2013 03:47 PM, Alex Williamson wrote:
On Tue, 2013-04-23 at 19:16 +, Yoder Stuart-B08248 wrote:
-Original Message-
From: Alex Williamson [mailto:alex.william...@redhat.com]
Sent: Tuesday
[mailto:alex.william...@redhat.com]
> >>> Sent: Tuesday, April 23, 2013 11:56 AM
> >>> To: Yoder Stuart-B08248
> >>> Cc: Joerg Roedel; iommu@lists.linux-foundation.org
> >>> Subject: Re: RFC: vfio / iommu driver for hardware with no iommu
> >
-foundation.org
Subject: Re: RFC: vfio / iommu driver for hardware with no iommu
On Tue, 2013-04-23 at 16:13 +, Yoder Stuart-B08248 wrote:
Joerg/Alex,
We have embedded systems where we use QEMU/KVM and have
the requirement to do device assignment, but have no
iommu. So we would like to get
> -Original Message-
> From: Bhushan Bharat-R65777
> Sent: Wednesday, April 24, 2013 6:04 AM
> To: Joerg Roedel; Yoder Stuart-B08248
> Cc: iommu@lists.linux-foundation.org
> Subject: RE: RFC: vfio / iommu driver for hardware with no iommu
>
>
>
> > --
Re: RFC: vfio / iommu driver for hardware with no iommu
>
> On Tue, Apr 23, 2013 at 04:13:00PM +, Yoder Stuart-B08248 wrote:
> > We're aware of the obvious limitations-- no protection, DMA'able
> > memory must be physically contiguous and will have no iova->phy
Re: RFC: vfio / iommu driver for hardware with no iommu
>
> On Tue, Apr 23, 2013 at 04:13:00PM +, Yoder Stuart-B08248 wrote:
> > We're aware of the obvious limitations-- no protection, DMA'able
> > memory must be physically contiguous and will have no iova->phy
On Tue, Apr 23, 2013 at 04:13:00PM +, Yoder Stuart-B08248 wrote:
> We're aware of the obvious limitations-- no protection,
> DMA'able memory must be physically contiguous and will
> have no iova->phy translation. But there are use cases
> where all OSes involved are trusted and customers can
>
.linux-foundation.org
> > Subject: Re: RFC: vfio / iommu driver for hardware with no iommu
> >
> > On Tue, 2013-04-23 at 16:13 +, Yoder Stuart-B08248 wrote:
> > > Joerg/Alex,
> > >
> > > We have embedded systems where we use QEMU/KVM and have
> &
> -Original Message-
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Tuesday, April 23, 2013 11:56 AM
> To: Yoder Stuart-B08248
> Cc: Joerg Roedel; iommu@lists.linux-foundation.org
> Subject: Re: RFC: vfio / iommu driver for hardware with no iommu
&g
ubject: Re: RFC: vfio / iommu driver for hardware with no iommu
>
> On Tue, 2013-04-23 at 16:13 +, Yoder Stuart-B08248 wrote:
> > Joerg/Alex,
> >
> > We have embedded systems where we use QEMU/KVM and have the
> > requirement to do device assignment, but have no iomm
On Tue, 2013-04-23 at 16:13 +, Yoder Stuart-B08248 wrote:
> Joerg/Alex,
>
> We have embedded systems where we use QEMU/KVM and have
> the requirement to do device assignment, but have no
> iommu. So we would like to get vfio-pci working on
> systems like this.
>
> We're aware of the obvious
Joerg/Alex,
We have embedded systems where we use QEMU/KVM and have
the requirement to do device assignment, but have no
iommu. So we would like to get vfio-pci working on
systems like this.
We're aware of the obvious limitations-- no protection,
DMA'able memory must be physically contiguous and
21 matches
Mail list logo
