[PATCH v2 0/8] Initial support for SMMUv3 nested translation

[Shameerali Kolothum Thodi]

Hi Nicolin,

> -----Original Message-----
> From: Nicolin Chen <nicolinc at nvidia.com>
> Sent: Tuesday, August 27, 2024 10:31 PM
> To: Jason Gunthorpe <jgg at nvidia.com>
> Cc: acpica-devel at lists.linux.dev; Guohanjun (Hanjun Guo)
> <guohanjun at huawei.com>; iommu at lists.linux.dev; Joerg Roedel
> <joro at 8bytes.org>; Kevin Tian <kevin.tian at intel.com>;
> kvm at vger.kernel.org; Len Brown <lenb at kernel.org>; linux-
> acpi at vger.kernel.org; linux-arm-kernel at lists.infradead.org; Lorenzo Pieralisi
> <lpieralisi at kernel.org>; Rafael J. Wysocki <rafael at kernel.org>; Robert
> Moore <robert.moore at intel.com>; Robin Murphy
> <robin.murphy at arm.com>; Sudeep Holla <sudeep.holla at arm.com>; Will
> Deacon <will at kernel.org>; Alex Williamson <alex.williamson at redhat.com>;
> Eric Auger <eric.auger at redhat.com>; Jean-Philippe Brucker <jean-
> philippe at linaro.org>; Moritz Fischer <mdf at kernel.org>; Michael Shavit
> <mshavit at google.com>; patches at lists.linux.dev; Shameerali Kolothum
> Thodi <shameerali.kolothum.thodi at huawei.com>; Mostafa Saleh
> <smostafa at google.com>
> Subject: Re: [PATCH v2 0/8] Initial support for SMMUv3 nested translation
> 
 
> As mentioned above, the VIOMMU series would be required to test the
> entire nesting feature, which now has a v2 rebasing on this series. I tested it
> with a paring QEMU branch. Please refer to:
> https://lore.kernel.org/linux-
> iommu/cover.1724776335.git.nicolinc at nvidia.com/

Thanks for this. I haven't gone through the viommu and its Qemu branch
yet.  The way we present nested-smmuv3/iommufd to the Qemu seems to
have changed  with the above Qemu branch(multiple nested SMMUs).
The old Qemu command line for nested setup doesn't work anymore.

Could you please share an example Qemu command line  to verify this
series(Sorry, if I missed it in the links/git).

Thanks,
Shameer