Re: [PATCH 1/2] pci id: clarify pci subsystem id usage

["Daniel P. Berrangé" <berrange@redhat.com>]

On Thu, Oct 15, 2026 at 10:15:43AM +0200, Gerd Hoffmann wrote:
> Qemu uses the pci subsystem id not only for emulated devices, but also
> for virtio devices and generic pci class devices such as pci bridges,
> xhci + nvme controllers etc.  Update the documentation accordingly.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  docs/specs/pci-ids.rst | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/docs/specs/pci-ids.rst b/docs/specs/pci-ids.rst
> index 261b0f359fe5..832f8bd1b802 100644
> --- a/docs/specs/pci-ids.rst
> +++ b/docs/specs/pci-ids.rst
> @@ -46,8 +46,9 @@ maintained as part of the virtio specification.
>    upstream merge or shipping a distro/product) to avoid conflicts.
>  
>  1af4:1100
> -  Used as PCI Subsystem ID for existing hardware devices emulated
> -  by QEMU.
> +  Used as PCI Subsystem ID for existing hardware devices emulated by
> +  QEMU, such as the intel chipset devices.  Also used for virtio
> +  devices and generic pci class devices (1b36:00xx, see below).

When talking virtio devices, does that include virtio devices
implemented outside QEMU via vhostuser, or only in-QEMU virtio
devices ?

With regards,
Daniel
-- 
|: https://berrange.com       ~~        https://hachyderm.io/@berrange :|
|: https://libvirt.org          ~~          https://entangle-photo.org :|
|: https://pixelfed.art/berrange   ~~    https://fstop138.berrange.com :|