Re: [PATCH v4 0/6] KVM/vfio: Use file-based reference counting for KVM

From: Christian Borntraeger

Date: Fri Oct 02 2026 - 04:50:35 EST



Am 01.10.26 um 19:46 schrieb Alex Williamson:
On Thu, 1 Oct 2026 13:59:49 +0200
Christian Borntraeger <borntraeger@xxxxxxxxxxxxx> wrote:

Am 28.09.26 um 15:07 schrieb Steffen Eiden:
This series switches the KVM-VFIO interface and external consumers over to
standard file-based reference counting, eliminating all external KVM symbol
exports.

Paolo, Alex,

I assume this will go over one of your tree? If you want, I can also create a topic branch
for you to pick if you prefer that.

It's a KVM focused change, vfio is collateral, so I'd defer to Paolo.
I don't believe I have anything pending that conflicts, it applies
cleanly against current vfio next branch, but a shared branch is always
a nice hedge. Thanks,

Alex

So I
- applied these patches on top of 7.3-rc2
- removed _safe from vfio_device_get_kvm_safe
- created a topic branch at
https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git/log/?h=vfio_file_reference

Paolo,
unless you want to take it yourself, I will merge this into kvms390/next and schedule this for
the next merge window.
ok?

Christian