> What does 'sudo lspci -v' print for the NPU on the host and in the guest?
Guest VM lspci -v output ( https://pastebin.ubuntu.com/p/8SV9qPBJbS/ ) Host lspci -v output ( https://pastebin.ubuntu.com/p/YV4RTZwGMv/ ) Here's one of the host GPUs: 1b:00.0 3D controller: NVIDIA Corporation GH100 [H100 SXM5 80GB] (rev a1) DeviceName: GPU0 Subsystem: NVIDIA Corporation GH100 [H100 SXM5 80GB] Flags: bus master, fast devsel, latency 0, IRQ 18, NUMA node 0, IOMMU group 67 Memory at 21e042000000 (64-bit, prefetchable) [size=16M] Memory at 21a000000000 (64-bit, prefetchable) [size=128G] Memory at 21e040000000 (64-bit, prefetchable) [size=32M] Capabilities: <access denied> Kernel driver in use: vfio-pci Kernel modules: nvidiafb And the same GPU as it appears on the guest: 06:00.0 3D controller: NVIDIA Corporation Device 2330 (rev a1) Subsystem: NVIDIA Corporation Device 16c1 Physical Slot: 0-6 Flags: bus master, fast devsel, latency 0, IRQ 10 Memory at 382002000000 (64-bit, prefetchable) [size=16M] Memory at 380000000000 (64-bit, prefetchable) [size=128G] Memory at 382000000000 (64-bit, prefetchable) [size=32M] Capabilities: <access denied> Kernel modules: nvidiafb Also, regarding the root cause of the slowdown, we're making some good progress in this thread ( https://lore.kernel.org/all/CAHTA-uYp07FgM6T1OZQKqAdSA5JrZo0ReNEyZgQZub4mDRrV5w@.../ ). (it is increasingly seeming like more of a kernel issue than an OVMF issue). - Mitchell Augustin -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#120869): https://edk2.groups.io/g/devel/message/120869 Mute This Topic: https://groups.io/mt/109651206/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
