Hi Nicolin,

-----Original Message-----
From: Nicolin Chen <redacted>
Sent: Tuesday, August 27, 2024 10:31 PM
To: Jason Gunthorpe <jgg@nvidia.com>
Cc: acpica-devel@lists.linux.dev; Guohanjun (Hanjun Guo)
[off-list ref]; iommu@lists.linux.dev; Joerg Roedel
[off-list ref]; Kevin Tian [off-list ref];
kvm@vger.kernel.org; Len Brown [off-list ref]; linux-
acpi@vger.kernel.org; linux-arm-kernel@lists.infradead.org; Lorenzo Pieralisi
[off-list ref]; Rafael J. Wysocki [off-list ref]; Robert
Moore [off-list ref]; Robin Murphy
[off-list ref]; Sudeep Holla [off-list ref]; Will
Deacon [off-list ref]; Alex Williamson [off-list ref];
Eric Auger [off-list ref]; Jean-Philippe Brucker <jean-
philippe@linaro.org>; Moritz Fischer [off-list ref]; Michael Shavit
[off-list ref]; patches@lists.linux.dev; Shameerali Kolothum
Thodi [off-list ref]; Mostafa Saleh
[off-list ref]
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@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