linux-kernel - Re: [RESENDx2] [PULL] virtio: fix barriers for virtio-mmio

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <87pqfeisg5.fsf@rustcorp.com.au>
Date:	Sat, 24 Dec 2011 13:31:14 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Ohad Ben-Cohen <ohad@...ery.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org,
	virtualization <virtualization@...ts.linux-foundation.org>,
	linux-arm <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RESENDx2] [PULL] virtio: fix barriers for virtio-mmio

On Fri, 23 Dec 2011 13:35:26 +0200, Ohad Ben-Cohen <ohad@...ery.com> wrote:
> On Fri, Dec 23, 2011 at 11:35 AM, Linus Torvalds
> <torvalds@...ux-foundation.org> wrote:
> > On x86, there really is never any reason to use the heavy memory
> > barriers unless you are talking to a real device. And last I saw,
> > "virtio" was still about virtual IO.

Not any more, as the commit message describes.

But I missed that they're using rpmsg, which isn't merged yet.

Sorry for the noise,
Rusty.
PS. Switching barriers by bus type is too crude anyway, let's come up
    with something better...
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/