On Thu, Jan 14, 2021 at 09:30:02AM +0800, Lu Baolu wrote:
> Some vendor IOMMU drivers are able to declare that it is running in a VM
> context. This is very valuable for the features that only want to be
> supported on bare metal. Add a capability bit so that it could be used.
And how is it used?
Hi Alex,
On 2021/1/13 5:20, Alex Williamson wrote:
> On Thu, 7 Jan 2021 17:28:57 +0800
> Keqian Zhu wrote:
>
>> Defer checking whether vfio_dma is of fully-dirty in update_user_bitmap
>> is easy to lose dirty log. For example, after promoting pinned_scope of
>> vfio_iommu, vfio_dma is not
On 2021/1/13 3:53, Alex Williamson wrote:
> On Tue, 12 Jan 2021 20:04:38 +0800
> Keqian Zhu wrote:
>
>> On 2021/1/12 5:49, Alex Williamson wrote:
>>> On Thu, 7 Jan 2021 17:29:00 +0800
>>> Keqian Zhu wrote:
>>>
If we detach group during dirty page tracking, we shouldn't remove
On Wed, Jan 13, 2021 at 7:48 AM Florian Fainelli wrote:
>
> On 1/5/21 7:41 PM, Claire Chang wrote:
> > If a device is not behind an IOMMU, we look up the device node and set
> > up the restricted DMA when the restricted-dma-pool is presented.
> >
> > Signed-off-by: Claire Chang
> > ---
>
>
On Wed, Jan 13, 2021 at 8:42 PM Christoph Hellwig wrote:
>
> > +#ifdef CONFIG_SWIOTLB
> > + struct io_tlb_mem *dma_io_tlb_mem;
> > #endif
>
> Please add a new config option for this code instead of always building
> it when swiotlb is enabled.
>
> > +static int
This adds a new trace event to track the submissions of requests to the
invalidation queue. This event will provide the information like:
- IOMMU name
- Invalidation type
- Descriptor raw data
A sample output like:
| qi_submit: iotlb_inv dmar1: 0x100e2 0x0 0x0 0x0
| qi_submit: dev_tlb_inv dmar1:
The pasid based IOTLB and devTLB invalidation code is duplicate in
several places. Consolidate them by using the common helpers.
Signed-off-by: Lu Baolu
---
drivers/iommu/intel/pasid.c | 18 ++--
drivers/iommu/intel/svm.c | 55 ++---
2 files changed, 11
On 2021-01-12 20:29, Ajay Kumar wrote:
On Tue, Jan 12, 2021 at 12:57 AM Robin Murphy wrote:
On 2021-01-07 13:03, Will Deacon wrote:
On Thu, Jan 07, 2021 at 03:03:40PM +0530, Ajay Kumar wrote:
When PCI function drivers(ex:pci-endpoint-test) are probed for already
initialized PCIe-RC(Root
Hi Eric,
> -Original Message-
> From: Auger Eric [mailto:eric.au...@redhat.com]
> Sent: 14 January 2021 16:58
> To: Shameerali Kolothum Thodi ;
> Jean-Philippe Brucker
> Cc: Xieyingtai ; alex.william...@redhat.com;
> wangxingang ; k...@vger.kernel.org;
> m...@kernel.org;
On Thu, 14 Jan 2021 21:05:23 +0800
Keqian Zhu wrote:
> Hi Alex,
>
> On 2021/1/13 5:20, Alex Williamson wrote:
> > On Thu, 7 Jan 2021 17:28:57 +0800
> > Keqian Zhu wrote:
> >
> >> Defer checking whether vfio_dma is of fully-dirty in update_user_bitmap
> >> is easy to lose dirty log. For
Hi Shameer, Jean-Philippe,
On 12/4/20 11:23 AM, Auger Eric wrote:
> Hi Shameer, Jean-Philippe,
>
> On 12/4/20 11:20 AM, Shameerali Kolothum Thodi wrote:
>> Hi Jean,
>>
>>> -Original Message-
>>> From: Jean-Philippe Brucker [mailto:jean-phili...@linaro.org]
>>> Sent: 04 December 2020
Hi Jean,
On 1/14/21 6:33 PM, Jean-Philippe Brucker wrote:
> Hi Eric,
>
> On Thu, Jan 14, 2021 at 05:58:27PM +0100, Auger Eric wrote:
The uacce-devel branches from
> https://github.com/Linaro/linux-kernel-uadk do provide this at the moment
> (they track the latest sva/zip-devel
On Wed, Jan 13, 2021 at 08:10:28AM +, Tian, Kevin wrote:
> > >> Is this only for SVA? We may see more scenarios of using IOPF. For
> > >> example, when passing through devices to user level, the user's pages
> > >> could be managed dynamically instead of being allocated and pinned
> > >>
Hi Eric,
On Thu, Jan 14, 2021 at 05:58:27PM +0100, Auger Eric wrote:
> >> The uacce-devel branches from
> >>> https://github.com/Linaro/linux-kernel-uadk do provide this at the moment
> >>> (they track the latest sva/zip-devel branch
> >>> https://jpbrucker.net/git/linux/ which is roughly based
Hi Leon,
On 1/14/21 9:26 PM, Leon Romanovsky wrote:
On Thu, Jan 14, 2021 at 09:30:02AM +0800, Lu Baolu wrote:
Some vendor IOMMU drivers are able to declare that it is running in a VM
context. This is very valuable for the features that only want to be
supported on bare metal. Add a capability
The Access/Dirty bits in the first level page table entry will be set
whenever a page table entry was used for address translation or write
permission was successfully translated. This is always true when using
the first-level page table for kernel IOVA. Instead of wasting hardware
cycles to
On Mon, Jan 11, 2021 at 07:18:47PM +0800, Yong Wu wrote:
> "dev->dma_range_map" contains the devices' dma_ranges information,
> This patch moves dma_range_map before of_iommu_configure. The iommu
> driver may need to know the dma_address requirements of its iommu
> consumer devices.
>
> CC: Rob
On 1/14/21 1:08 AM, Claire Chang wrote:
> On Wed, Jan 13, 2021 at 7:48 AM Florian Fainelli wrote:
>>
>> On 1/5/21 7:41 PM, Claire Chang wrote:
>>> If a device is not behind an IOMMU, we look up the device node and set
>>> up the restricted DMA when the restricted-dma-pool is presented.
>>>
>>>
Dears,
there is thread https://github.com/intel/gvt-linux/issues/162 discussing
issues when gvt-g is used in Windows guest while the host has prime render
offload enabled.
I have this issue as well and I did a kernel bisect between v5.7 (works
kind of OK, at least there are no qemu/guest
On Fri, Jan 15, 2021 at 2:52 AM Florian Fainelli wrote:
>
> On 1/14/21 1:08 AM, Claire Chang wrote:
> > On Wed, Jan 13, 2021 at 7:48 AM Florian Fainelli
> > wrote:
> >>
> >> On 1/5/21 7:41 PM, Claire Chang wrote:
> >>> If a device is not behind an IOMMU, we look up the device node and set
> >>>
On Thu, 2021-01-14 at 13:27 -0600, Rob Herring wrote:
> On Mon, Jan 11, 2021 at 07:18:47PM +0800, Yong Wu wrote:
> > "dev->dma_range_map" contains the devices' dma_ranges information,
> > This patch moves dma_range_map before of_iommu_configure. The iommu
> > driver may need to know the
On 2021/1/14 上午9:30, Lu Baolu wrote:
Some vendor IOMMU drivers are able to declare that it is running in a VM
context. This is very valuable for the features that only want to be
supported on bare metal. Add a capability bit so that it could be used.
Signed-off-by: Lu Baolu
---
On Fri, Jan 15, 2021 at 07:49:47AM +0800, Lu Baolu wrote:
> Hi Leon,
>
> On 1/14/21 9:26 PM, Leon Romanovsky wrote:
> > On Thu, Jan 14, 2021 at 09:30:02AM +0800, Lu Baolu wrote:
> > > Some vendor IOMMU drivers are able to declare that it is running in a VM
> > > context. This is very valuable for
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