Re: [PATCH v4 06/17] PCI: add SIOV and IMS capability detection

[Christoph Hellwig]

On Thu, Nov 12, 2020 at 11:42:46PM +0100, Thomas Gleixner wrote:
> DMI vendor name is pretty good final check when the bit is 0. The
> strings I'm aware of are:
> 
> QEMU, Bochs, KVM, Xen, VMware, VMW, VMware Inc., innotek GmbH, Oracle
> Corporation, Parallels, BHYVE, Microsoft Corporation
> 
> which is not complete but better than nothing ;)

Which is why I really think we need explicit opt-ins for "native"
SIOV handling and for paravirtualized SIOV handling, with the kernel
not offering support at all without either or a manual override on
the command line.