Re: [edk2-devel] [Patch 1/2] OvmfPkg: Change default to disable MptScsi and PvScsi

["Ard Biesheuvel" <ardb@kernel.org>]

On Wed, 7 Dec 2022 at 17:02, Gerd Hoffmann <kraxel@redhat.com> wrote:
>
> On Wed, Dec 07, 2022 at 09:14:39AM -0500, James Bottomley wrote:
> > On Wed, 2022-12-07 at 15:09 +0100, Ard Biesheuvel wrote:
> > > So at some point, these drivers will be removed rather than kept
> > > alive by the core team unless someone steps up.
> >
> > How important is keeping them alive?
>
> Most common use case is probably bootimg images created on other
> hypervisors on qemu.  Otherwise there is little reason to use
> something which is not virtio-scsi.
>
> > I can volunteer to "maintain"
> > them which I anticipate won't be much effort (plus I'm used to looking
> > after obsolete SCSI equipment).  The hardware is obsolete, so the
> > mechanics of their emulation isn't going to change, the only potential
> > risk is changes in the guest to host transmission layer that breaks
> > something.
>

Thanks James, that would be very helpful.

> Yes, I don't expect it being much effort, but knowing oldish scsi stuff
> certainly helps understanding the driver code if needed.  If you want
> step up sent a patch updating Maintainers.txt accordingly.
>

Having the informed opinion of a domain expert should allow us to
diagnose issued related to these drivers with more confidence, and
also give us insight in how obsolete those drivers actually are.

I can send the patch if you prefer.


> > On the other hand, I've got to say I use virtio-scsi in all
> > my VM testing environments,
>
> Same here ;)
>
> take care,
>   Gerd
>