From: Jason Gunthorpe <jgg@nvidia.com>
To: Danilo Krummrich <dakr@kernel.org>
Cc: Zhi Wang <zhiw@nvidia.com>,
kvm@vger.kernel.org, alex.williamson@redhat.com,
kevin.tian@intel.com, airlied@gmail.com, daniel@ffwll.ch,
acurrid@nvidia.com, cjia@nvidia.com, smitra@nvidia.com,
ankita@nvidia.com, aniketa@nvidia.com, kwankhede@nvidia.com,
targupta@nvidia.com, zhiwang@kernel.org, acourbot@nvidia.com,
joelagnelf@nvidia.com, apopple@nvidia.com, jhubbard@nvidia.com,
nouveau@lists.freedesktop.org
Subject: Re: [RFC v2 03/14] vfio/nvidia-vgpu: introduce vGPU type uploading
Date: Thu, 4 Sep 2025 09:15:44 -0300 [thread overview]
Message-ID: <20250904121544.GL470103@nvidia.com> (raw)
In-Reply-To: <DCJX0ZBB1ATN.1WPXONLVV8RYD@kernel.org>
On Thu, Sep 04, 2025 at 11:41:03AM +0200, Danilo Krummrich wrote:
> > Another note: I don't see any use of the auxiliary bus in vGPU, any clients
> > should attach via the auxiliary bus API, it provides proper matching where
> > there's more than on compatible GPU in the system. nova-core already registers
> > an auxiliary device for each bound PCI device.
The driver here attaches to the SRIOV VF pci_device, it should obtain the
nova-core handle of the PF device through pci_iov_get_pf_drvdata().
This is the expected design of VFIO drivers because the driver core
does not support a single driver binding to two devices (aux and VF)
today.
Jason
next prev parent reply other threads:[~2025-09-04 12:15 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-03 22:10 [RFC v2 00/14] Introduce NVIDIA GPU Virtualization (vGPU) Support Zhi Wang
2025-09-03 22:10 ` [RFC v2 01/14] vfio/nvidia-vgpu: introduce vGPU lifecycle management prelude Zhi Wang
2025-09-03 22:10 ` [RFC v2 02/14] vfio/nvidia-vgpu: allocate GSP RM client for NVIDIA vGPU manager Zhi Wang
2025-09-03 22:11 ` [RFC v2 03/14] vfio/nvidia-vgpu: introduce vGPU type uploading Zhi Wang
2025-09-04 9:37 ` Danilo Krummrich
2025-09-04 9:41 ` Danilo Krummrich
2025-09-04 12:15 ` Jason Gunthorpe [this message]
2025-09-04 12:45 ` Danilo Krummrich
2025-09-04 13:58 ` Jason Gunthorpe
2025-09-04 15:43 ` Zhi Wang
2025-09-06 10:34 ` Danilo Krummrich
2025-09-03 22:11 ` [RFC v2 04/14] vfio/nvidia-vgpu: allocate vGPU channels when creating vGPUs Zhi Wang
2025-09-03 22:11 ` [RFC v2 05/14] vfio/nvidia-vgpu: allocate vGPU FB memory " Zhi Wang
2025-09-03 22:11 ` [RFC v2 06/14] vfio/nvidia-vgpu: allocate mgmt heap " Zhi Wang
2025-09-03 22:11 ` [RFC v2 07/14] vfio/nvidia-vgpu: map mgmt heap when creating a vGPU Zhi Wang
2025-09-03 22:11 ` [RFC v2 08/14] vfio/nvidia-vgpu: allocate GSP RM client when creating vGPUs Zhi Wang
2025-09-03 22:11 ` [RFC v2 09/14] vfio/nvidia-vgpu: bootload the new vGPU Zhi Wang
2025-09-03 22:11 ` [RFC v2 10/14] vfio/nvidia-vgpu: introduce vGPU host RPC channel Zhi Wang
2025-09-03 22:36 ` Timur Tabi
2025-09-03 22:11 ` [RFC v2 11/14] vfio/nvidia-vgpu: introduce NVIDIA vGPU VFIO variant driver Zhi Wang
2025-09-03 22:11 ` [RFC v2 12/14] vfio/nvidia-vgpu: scrub the guest FB memory of a vGPU Zhi Wang
2025-09-03 22:11 ` [RFC v2 13/14] vfio/nvidia-vgpu: introduce vGPU logging Zhi Wang
2025-09-03 22:11 ` [RFC v2 14/14] vfio/nvidia-vgpu: add a kernel doc to introduce NVIDIA vGPU Zhi Wang
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