On Thu, Mar 03, 2022 at 12:59:07PM +0100, Sergio Lopez wrote:
> Since QEMU is already able to emulate ioeventfd using pipefd, we're already
> pretty close to supporting vhost-user on non-Linux systems.
>
> This two patches bridge the gap by:
>
> 1. Adding a new event_notifier_get_wfd() to return wfd on the places where
> the peer is expected to write to the notifier.
>
> 2. Modifying the build system to it allows enabling vhost-user on BSD.
>
> v1->v2:
> - Drop: "Allow returning EventNotifier's wfd" (Alex Williamson)
> - Add: "event_notifier: add event_notifier_get_wfd()" (Alex Williamson)
> - Add: "vhost: use wfd on functions setting vring call fd"
> - Rename: "Allow building vhost-user in BSD" to "configure, meson: allow
> enabling vhost-user on all POSIX systems"
> - Instead of making possible enabling vhost-user on Linux and BSD systems,
> allow enabling it on all non-Windows platforms. (Paolo Bonzini)
I picked 1,2.
Waiting on updated doc patch to apply 3,4.
> v2->v3:
> - Add a section to docs/interop/vhost-user.rst explaining how vhost-user
> is supported on non-Linux platforms. (Stefan Hajnoczi)
>
> Sergio Lopez (4):
> event_notifier: add event_notifier_get_wfd()
> vhost: use wfd on functions setting vring call fd
> configure, meson: allow enabling vhost-user on all POSIX systems
> docs: vhost-user: add subsection for non-Linux platforms
>
> configure | 4 ++--
> docs/interop/vhost-user.rst | 18 ++++++++++++++++++
> hw/virtio/vhost.c | 6 +++---
> include/qemu/event_notifier.h | 1 +
> meson.build | 2 +-
> util/event_notifier-posix.c | 5 +++++
> 6 files changed, 30 insertions(+), 6 deletions(-)
>
> --
> 2.35.1
>