Messages in this thread | | | Date | Thu, 16 Sep 2021 11:21:56 -0700 | From | Nicolin Chen <> | Subject | Re: [RFC][PATCH v2 00/13] iommu/arm-smmu-v3: Add NVIDIA implementation |
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Hi Kevin,
On Thu, Sep 02, 2021 at 10:27:06PM +0000, Tian, Kevin wrote:
> > Indeed, this looks like a flavour of the accelerated invalidation > > stuff we've talked about already. > > > > I would see it probably exposed as some HW specific IOCTL on the iommu > > fd to get access to the accelerated invalidation for IOASID's in the > > FD. > > > > Indeed, this seems like a further example of why /dev/iommu is looking > > like a good idea as this RFC is very complicated to do something > > fairly simple. > > > > Where are thing on the /dev/iommu work these days? > > We are actively working on the basic skeleton. Our original plan is to send > out the 1st draft before LPC, with support of vfio type1 semantics and > and pci dev only (single-device group). But later we realized that adding > multi-devices group support is also necessary even in the 1st draft to avoid > some dirty hacks and build the complete picture. This will add some time > though. If things go well, we'll still try hit the original plan. If not, it will be > soon after LPC.
As I also want to take a look at your work for this implementation, would you please CC me when you send out your patches? Thank you!
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