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From: Alyssa Ross <hi@alyssa.is>
To: Thomas Leonard <talex5@gmail.com>
Cc: Michael Raskin <7c6f434c@mail.ru>, discuss@spectrum-os.org
Subject: Re: Qubes-lite With KVM and Wayland
Date: Wed, 10 Mar 2021 22:34:50 +0000	[thread overview]
Message-ID: <20210310223450.ahsn66c6iefcieir@eve.qyliss.net> (raw)
In-Reply-To: <CAG4opy-5u1hn3jZPJgh+NnGFjX7J2gb_ytFETFsKX2g_Rp2Dig@mail.gmail.com>

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On Wed, Mar 10, 2021 at 02:19:49PM +0000, Thomas Leonard wrote:
> > > I didn’t have time to write and debug C++ code for every missing
> > > Wayland protocol, so I took a short-cut: I wrote my own Wayland library,
> > > ocaml-wayland, and then used that to write my own version of sommelier.
> > > With that, adding support for copying text was fairly easy.
> >
> > Well this is interesting!  I definitely want to learn more about this.
>
> I've put it up here: https://github.com/talex5/wayland-virtwl-proxy
>
> There's a default.nix file, so it should build easily enough (make
> sure to git clone with submodules). I'd be interested to know if it
> works for other people. I've been using it for about a week now, and
> it seems fine with firefox, evince and xfce4-terminal (the apps I
> use).
>
> But e.g. kitty won't run because there's no `wl_drm` support. I don't
> know anything about graphics acceleration. But someone on Hacker News
> commented that you did panfrost, so I guess you know about that sort
> of thing.

Alas, I am not Alyssa Rosenzweig of panfrost (gosh how much easier this
would be if I knew as much about Linux graphics as she does!).  But it
is not uncommon that people get us mixed up. :)

FWIW, wl_drm solves your complaint of having to copy buffers from
client-allocated memory -- with wl_drm, the client is given a dmabuf
from the server.  As I understand it, Chromium OS already supports this
with virtio-gpu, but I haven't tried that yet.

> > > I’m not sure how guest-to-guest communication works with KVM.
> >
> > It... doesn't really, at least not the way it does with Xen.
> > virtio-vhost-user[1] is promising, but very early stages.  I've talked
> > in quite a lot of detail about how that works on this list before as
> > well.  guest-to-guest communication was my main area of work for most of
> > the second half of last year (and what ended up causing me to burn out).
>
> I guess once you've got shared memory and inter-VM interrupts it might
> be possible to reuse the Xen protocols and drivers. I made a firewall
> VM on Qubes that did that a few years ago
> (https://roscidus.com/blog/blog/2016/01/01/a-unikernel-firewall-for-qubesos/).
> But the virtio protocols will probably be more widely supported in
> future.

That's an interesting idea I hadn't considered.  But I am hoping that
virtio gets to the point that we don't need to do that in a reasonable
amount of time.

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  reply	other threads:[~2021-03-10 22:35 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-05 19:27 New user getting started questions Thomas Leonard
2021-01-05 20:09 ` Michael Raskin
2021-01-06  7:04   ` Alyssa's break Alyssa Ross
2021-01-06  9:11     ` Michał "rysiek" Woźniak
2021-01-06  7:00 ` New user getting started questions Alyssa Ross
2021-01-06 15:56   ` Thomas Leonard
2021-01-07 11:38     ` Thomas Leonard
2021-01-07 15:33     ` Thomas Leonard
2021-01-14 12:29     ` Alyssa Ross
2021-01-14 12:51       ` Alyssa Ross
2021-01-20 13:04         ` Thomas Leonard
2021-01-27 17:31           ` Thomas Leonard
2021-03-07 12:52             ` Thomas Leonard
2021-03-09 16:59               ` Qubes-lite With KVM and Wayland Alyssa Ross
2021-03-10 14:19                 ` Thomas Leonard
2021-03-10 22:34                   ` Alyssa Ross [this message]
2021-03-09 16:25             ` New user getting started questions Alyssa Ross
2021-03-13  7:21               ` Thomas Leonard
2021-03-13 13:52                 ` Alyssa Ross
2021-10-30 12:58                 ` Thomas Leonard
2021-11-03 11:36                   ` Alyssa Ross
2021-11-03 18:27                     ` Thomas Leonard
2021-11-10 12:58                       ` Alyssa Ross
2021-11-10 12:00                         ` Thomas Leonard
2021-11-11 11:09                           ` Alyssa Ross
2021-11-11 16:12                             ` Thomas Leonard
2021-11-12 10:47                               ` Alyssa Ross
2022-03-13 15:08                         ` Thomas Leonard
2022-03-15 14:06                           ` Alyssa Ross
2022-03-15 20:23                             ` Alyssa Ross
2022-03-16 16:18                               ` Using virtio-gpu instead of virtwl Thomas Leonard
2022-03-16 16:54                                 ` Alyssa Ross
2022-03-21 12:10                                 ` Thomas Leonard
2022-03-21 16:05                                   ` Alyssa Ross
2022-03-22 11:08                                     ` Thomas Leonard
2022-03-22 11:16                                       ` Alyssa Ross
2022-03-22 20:05                                         ` Thomas Leonard
2022-04-06 12:19                                           ` Thomas Leonard
2022-04-13 17:12                                             ` Thomas Leonard
2022-04-14 13:57                                               ` Alyssa Ross
2022-04-19 12:58                                                 ` Thomas Leonard
2022-04-19 12:01                                                   ` Alyssa Ross
2022-05-15 15:20                                                 ` Thomas Leonard
2022-05-16 11:55                                                   ` Alyssa Ross
2022-05-18  9:55                                                     ` Thomas Leonard
2022-06-05 16:29                                                       ` Thomas Leonard
2022-08-09 12:00                                     ` Alyssa Ross
2022-10-10 15:16                                       ` Thomas Leonard
2022-10-10 16:53                                         ` Alyssa Ross

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