On 6/21/24 4:47 PM, Shivaprasad G Bhat wrote:

On 6/21/24 2:19 PM, Cédric Le Goater wrote:

Could you please describe the host/guest OS, hypervisor, processor
and adapter ?

Here is the environment info,


pSeries:

Host : Power10 PowerVM  Lpar

Kernel: Upstream 6.10.0-rc4 + VFIO fixes posted at 
171810893836.1721.2640631616827396553.st...@linux.ibm.com

Great. You should report there too and probably send a PR to Alex to
contribute your changes to the vfio tests.

Hypervisor : KVM on PowerVM &

OK. So, this is using the newer nested v2 implementation. With the
legacy XICS IRQ controller or XIVE ? in-kernel device or emulated ?

also tried without KVM using TCG

Ah nice. Good to know that real HW passthrough works in TCG also.

Guest : 6.8.5-301.fc40.ppc64le Fedora 40 distro kernel

Adapter: Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD 
Controller PM173X

PowerNV:

Host: Power9 Baremetal

Kernel: kernel-core-6.9.4-200 - Fedora 40 distro kernel

Is there a requirement on the kernel version ? Would an older debian
6.1 work for instance ?

Hypervisor: KVM

Guest : 6.8.5-301.fc40.ppc64le - Fedora 40 distro kernel

Adapter: Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD 
Controller PM173X

Nice. XIVE I suppose. What about TCG ?

Thanks a lot,

C.


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