On Thu, Jun 24, 2021 at 1:43 PM Christoph Hellwig wrote:
>
> On Wed, Jun 23, 2021 at 02:44:34PM -0400, Qian Cai wrote:
> > is_swiotlb_force_bounce at /usr/src/linux-next/./include/linux/swiotlb.h:119
> >
> > is_swiotlb_force_bounce() was the new function introduced in this patch
> > here.
> >
> >
> From: David Gibson
> Sent: Thursday, June 24, 2021 12:26 PM
>
> On Fri, Jun 18, 2021 at 04:57:40PM +, Tian, Kevin wrote:
> > > From: Jason Gunthorpe
> > > Sent: Friday, June 18, 2021 8:20 AM
> > >
> > > On Thu, Jun 17, 2021 at 03:14:52PM -0600, Alex Williamson wrote:
> > >
> > > > I've refe
On Wed, Jun 23, 2021 at 02:44:34PM -0400, Qian Cai wrote:
> is_swiotlb_force_bounce at /usr/src/linux-next/./include/linux/swiotlb.h:119
>
> is_swiotlb_force_bounce() was the new function introduced in this patch here.
>
> +static inline bool is_swiotlb_force_bounce(struct device *dev)
> +{
> +
On Tue, Jun 15, 2021 at 01:21:35AM +, Tian, Kevin wrote:
> > From: Jason Gunthorpe
> > Sent: Monday, June 14, 2021 9:38 PM
> >
> > On Mon, Jun 14, 2021 at 03:09:31AM +, Tian, Kevin wrote:
> >
> > > If a device can be always blocked from accessing memory in the IOMMU
> > > before it's bou
On Thu, Jun 17, 2021 at 08:04:38PM -0300, Jason Gunthorpe wrote:
> On Thu, Jun 17, 2021 at 03:02:33PM +1000, David Gibson wrote:
>
> > In other words, do we really have use cases where we need to identify
> > different devices IDs, even though we know they're not isolated.
>
> I think when PASID
On Fri, Jun 18, 2021 at 04:57:40PM +, Tian, Kevin wrote:
> > From: Jason Gunthorpe
> > Sent: Friday, June 18, 2021 8:20 AM
> >
> > On Thu, Jun 17, 2021 at 03:14:52PM -0600, Alex Williamson wrote:
> >
> > > I've referred to this as a limitation of type1, that we can't put
> > > devices within
On Fri, Jun 18, 2021 at 12:15:06PM -0300, Jason Gunthorpe wrote:
> On Fri, Jun 18, 2021 at 03:47:51PM +0200, Joerg Roedel wrote:
> > Hi Kevin,
> >
> > On Thu, Jun 17, 2021 at 07:31:03AM +, Tian, Kevin wrote:
> > > Now let's talk about the new IOMMU behavior:
> > >
> > > - A device is blocke
On Thu, Jun 17, 2021 at 03:14:52PM -0600, Alex Williamson wrote:
> On Thu, 17 Jun 2021 07:31:03 +
> "Tian, Kevin" wrote:
> > > From: Alex Williamson
> > > Sent: Thursday, June 17, 2021 3:40 AM
> > > On Wed, 16 Jun 2021 06:43:23 +
> > > "Tian, Kevin" wrote:
> > > > > From: Alex Williamson
On Fri, Jun 18, 2021 at 01:21:47PM +0800, Lu Baolu wrote:
> Hi David,
>
> On 6/17/21 1:22 PM, David Gibson wrote:
> > > The iommu_group can guarantee the isolation among different physical
> > > devices (represented by RIDs). But when it comes to sub-devices (ex. mdev
> > > or
> > > vDPA devices
On Wed, Jun 23, 2021 at 07:59:21AM +, Tian, Kevin wrote:
> > From: David Gibson
> > Sent: Thursday, June 17, 2021 11:48 AM
> >
> > On Tue, Jun 08, 2021 at 10:17:56AM -0300, Jason Gunthorpe wrote:
> > > On Tue, Jun 08, 2021 at 12:37:04PM +1000, David Gibson wrote:
> > >
> > > > > The PPC/SPAPR
On Fri, Jun 18, 2021 at 07:03:31PM +0200, Jean-Philippe Brucker wrote:
> On Thu, Jun 17, 2021 at 01:00:14PM +1000, David Gibson wrote:
> > On Thu, Jun 10, 2021 at 06:37:31PM +0200, Jean-Philippe Brucker wrote:
> > > On Tue, Jun 08, 2021 at 04:31:50PM +1000, David Gibson wrote:
> > > > For the qemu
On Thu, Jun 17, 2021 at 08:10:04PM -0300, Jason Gunthorpe wrote:
> On Thu, Jun 17, 2021 at 02:45:46PM +1000, David Gibson wrote:
> > On Wed, Jun 09, 2021 at 09:39:19AM -0300, Jason Gunthorpe wrote:
> > > On Wed, Jun 09, 2021 at 02:24:03PM +0200, Joerg Roedel wrote:
> > > > On Mon, Jun 07, 2021 at 0
On Wed, Jun 23, 2021 at 08:00:49AM +, Tian, Kevin wrote:
> > From: David Gibson
> > Sent: Thursday, June 17, 2021 12:08 PM
> >
> > On Thu, Jun 03, 2021 at 08:12:27AM +, Tian, Kevin wrote:
> > > > From: David Gibson
> > > > Sent: Wednesday, June 2, 2021 2:15 PM
> > > >
> > > [...]
> > >
>
On Thu, Jun 24, 2021 at 11:35 AM Jason Wang wrote:
>
>
> 在 2021/6/23 下午1:50, Yongji Xie 写道:
> > On Wed, Jun 23, 2021 at 11:31 AM Jason Wang wrote:
> >>
> >> 在 2021/6/22 下午4:14, Yongji Xie 写道:
> >>> On Tue, Jun 22, 2021 at 3:50 PM Jason Wang wrote:
> 在 2021/6/22 下午3:22, Yongji Xie 写道:
>
在 2021/6/23 下午1:50, Yongji Xie 写道:
On Wed, Jun 23, 2021 at 11:31 AM Jason Wang wrote:
在 2021/6/22 下午4:14, Yongji Xie 写道:
On Tue, Jun 22, 2021 at 3:50 PM Jason Wang wrote:
在 2021/6/22 下午3:22, Yongji Xie 写道:
We need fix a way to propagate the error to the userspace.
E.g if we want to stop
Hi Robin,
On Mon, Jun 14, 2021 at 02:29:08PM +0100, Robin Murphy wrote:
> On 2021-06-13 07:29, Salvatore Bonaccorso wrote:
> > A user in Debian reported the above issue, which was reproducible with
> > 5.13-rc5 and 5.10.y as packaged in Debian and found that 85a5a6875ca9
> > ("swiotlb: don't modif
On 6/23/2021 2:37 PM, Will Deacon wrote:
> On Wed, Jun 23, 2021 at 12:39:29PM -0400, Qian Cai wrote:
>>
>>
>> On 6/18/2021 11:40 PM, Claire Chang wrote:
>>> Propagate the swiotlb_force into io_tlb_default_mem->force_bounce and
>>> use it to determine whether to bounce the data or not. This will
On Wed, Jun 23, 2021 at 12:39:29PM -0400, Qian Cai wrote:
>
>
> On 6/18/2021 11:40 PM, Claire Chang wrote:
> > Propagate the swiotlb_force into io_tlb_default_mem->force_bounce and
> > use it to determine whether to bounce the data or not. This will be
> > useful later to allow for different pool
Hi,
On Tue, Jun 22, 2021 at 3:10 PM Robin Murphy wrote:
>
> On 2021-06-22 17:06, Doug Anderson wrote:
> > Hi,
> >
> > On Tue, Jun 22, 2021 at 4:35 AM Robin Murphy wrote:
> >>
> >> Hi Doug,
> >>
> >> On 2021-06-22 00:52, Douglas Anderson wrote:
> >>>
> >>> This patch attempts to put forward a pro
re_class
[ 22.362512][ T256] igb 0006:01:00.0: eth0: PBA No: G69016-004
[ 22.372287][T7] CPU: 13 PID: 7 Comm: kworker/u64:0 Not tainted
5.13.0-rc7-next-20210623+ #47
[ 22.372293][T7] Hardware name: MiTAC RAPTOR EV-883832-X3-0001/RAPTOR,
BIOS 1.6 06/28/2020
[ 22.372298][T7] Workq
On Tue, Jun 22, 2021 at 2:10 PM Doug Anderson wrote:
>
> Hi,
>
> On Tue, Jun 22, 2021 at 1:06 PM Saravana Kannan wrote:
> >
> > On Tue, Jun 22, 2021 at 1:02 PM Rob Herring wrote:
> > >
> > > On Tue, Jun 22, 2021 at 09:06:02AM -0700, Doug Anderson wrote:
> > > > Hi,
> > > >
> > > > On Tue, Jun 22
Hi Robin,
On 2021-06-23 00:07, Robin Murphy wrote:
On 2021-06-22 15:27, Sai Prakash Ranjan wrote:
Hi Robin,
On 2021-06-22 17:41, Robin Murphy wrote:
On 2021-06-22 08:11, Sai Prakash Ranjan wrote:
Hi Robin,
On 2021-06-21 21:15, Robin Murphy wrote:
On 2021-06-18 03:51, Sai Prakash Ranjan wro
Currently for iommu_unmap() of large scatter-gather list with page size
elements, the majority of time is spent in flushing of partial walks in
__arm_lpae_unmap() which is a VA based TLB invalidation invalidating
page-by-page on iommus like arm-smmu-v2 (TLBIVA).
For example: to unmap a 32MB scatte
On Wed, Jun 23, 2021 at 4:38 PM Konrad Rzeszutek Wilk
wrote:
>
> On Sat, Jun 19, 2021 at 11:40:31AM +0800, Claire Chang wrote:
> > This series implements mitigations for lack of DMA access control on
> > systems without an IOMMU, which could result in the DMA accessing the
> > system memory at une
On Sat, Jun 19, 2021 at 11:40:31AM +0800, Claire Chang wrote:
> This series implements mitigations for lack of DMA access control on
> systems without an IOMMU, which could result in the DMA accessing the
> system memory at unexpected times and/or unexpected addresses, possibly
> leading to data le
> From: Jason Gunthorpe
> Sent: Saturday, June 19, 2021 2:31 AM
>
> On Fri, Jun 18, 2021 at 07:03:31PM +0200, Jean-Philippe Brucker wrote:
>
> > configuration. The Arm SMMUs have a lot of small features that
> > implementations can mix and match and that a user shouldn't have to care
> > about,
> From: David Gibson
> Sent: Thursday, June 17, 2021 12:08 PM
>
> On Thu, Jun 03, 2021 at 08:12:27AM +, Tian, Kevin wrote:
> > > From: David Gibson
> > > Sent: Wednesday, June 2, 2021 2:15 PM
> > >
> > [...]
> >
> > > >
> > > > /*
> > > > * Get information about an I/O address space
> > > >
> From: David Gibson
> Sent: Thursday, June 17, 2021 11:48 AM
>
> On Tue, Jun 08, 2021 at 10:17:56AM -0300, Jason Gunthorpe wrote:
> > On Tue, Jun 08, 2021 at 12:37:04PM +1000, David Gibson wrote:
> >
> > > > The PPC/SPAPR support allows KVM to associate a vfio group to an
> IOMMU
> > > > page ta
> From: Jean-Philippe Brucker
> Sent: Saturday, June 19, 2021 1:04 AM
>
> On Thu, Jun 17, 2021 at 01:00:14PM +1000, David Gibson wrote:
> > On Thu, Jun 10, 2021 at 06:37:31PM +0200, Jean-Philippe Brucker wrote:
> > > On Tue, Jun 08, 2021 at 04:31:50PM +1000, David Gibson wrote:
> > > > For the qem
On 6/23/21 6:25 AM, Robin Murphy wrote:
On 2021-06-21 15:32, Lu Baolu wrote:
Hi Robin,
On 2021/6/21 19:59, Robin Murphy wrote:
On 2021-06-21 11:34, John Garry wrote:
On 21/06/2021 11:00, Lu Baolu wrote:
void iommu_set_dma_strict(bool force)
{
if (force == true)
iommu_dma_s
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