Messages in this thread |  | | Date | Mon, 26 Jul 2021 17:28:31 -0600 | From | Alex Williamson <> | Subject | Re: [PATCH 2/2] vfio/mdev: don't warn if ->request is not set |
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On Mon, 26 Jul 2021 20:09:06 -0300 Jason Gunthorpe <jgg@nvidia.com> wrote:
> On Mon, Jul 26, 2021 at 07:07:04PM +0200, Cornelia Huck wrote: > > > But I wonder why nobody else implements this? Lack of surprise removal? > > The only implementation triggers an eventfd that seems to be the same > eventfd as the interrupt.. > > Do you know how this works in userspace? I'm surprised that the > interrupt eventfd can trigger an observation that the kernel driver > wants to be unplugged?
I think we're talking about ccw, but I see QEMU registering separate eventfds for each of the 3 IRQ indexes and the mdev driver specifically triggering the req_trigger...? Thanks,
Alex
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