From: Jan Kiszka <jan.kiszka@siemens.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Andy Lutomirski <luto@amacapital.net>
Cc: "linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
xen-devel <Xen-devel@lists.xen.org>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Paolo Bonzini <pbonzini@redhat.com>,
"linux390@de.ibm.com" <linux390@de.ibm.com>,
Linux Virtualization <virtualization@lists.linux-foundation.org>
Subject: Re: [PATCH v4 0/4] virtio: Clean up scatterlists and use the DMA API
Date: Wed, 29 Jul 2015 10:07:36 +0200 [thread overview]
Message-ID: <55B889C8.4040000@siemens.com> (raw)
In-Reply-To: <1438125694.7562.177.camel@kernel.crashing.org>
On 2015-07-29 01:21, Benjamin Herrenschmidt wrote:
> On Tue, 2015-07-28 at 15:43 -0700, Andy Lutomirski wrote:
>> New QEMU
>> always advertises this feature flag. If iommu=on, QEMU's virtio
>> devices refuse to work unless the driver acknowledges the flag.
>
> This should be configurable.
Advertisement of that flag must be configurable, or we won't be able to
run older guests anymore which don't know it, thus will reject it. The
only precondition: there must be no IOMMU if we turn it off.
Jan
--
Siemens AG, Corporate Technology, CT RTC ITP SES-DE
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2015-07-29 8:07 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-28 1:08 [PATCH v4 0/4] virtio: Clean up scatterlists and use the DMA API Andy Lutomirski
2015-07-28 7:05 ` Christian Borntraeger
2015-07-28 7:05 ` Christian Borntraeger
2015-07-28 8:16 ` Paolo Bonzini
2015-07-28 8:16 ` Paolo Bonzini
2015-07-28 10:12 ` Benjamin Herrenschmidt
2015-07-28 10:12 ` Benjamin Herrenschmidt
2015-07-28 12:46 ` Paolo Bonzini
2015-07-28 13:06 ` Michael S. Tsirkin
2015-07-28 13:06 ` Michael S. Tsirkin
2015-07-28 13:11 ` Jan Kiszka
2015-07-28 16:11 ` Andy Lutomirski
2015-07-28 16:44 ` Jan Kiszka
2015-07-28 16:44 ` Jan Kiszka
2015-07-28 17:10 ` Andy Lutomirski
2015-07-28 17:10 ` Andy Lutomirski
2015-07-28 17:17 ` Jan Kiszka
2015-07-28 17:17 ` Jan Kiszka
2015-07-28 18:22 ` Andy Lutomirski
2015-07-28 18:22 ` Andy Lutomirski
2015-07-28 19:06 ` Jan Kiszka
2015-07-28 19:06 ` Jan Kiszka
2015-07-28 19:24 ` Andy Lutomirski
2015-07-28 19:24 ` Andy Lutomirski
2015-07-28 19:33 ` Jan Kiszka
2015-07-28 21:16 ` Andy Lutomirski
2015-07-28 21:16 ` Andy Lutomirski
2015-07-28 22:43 ` Andy Lutomirski
2015-07-28 22:43 ` Andy Lutomirski
2015-07-28 23:21 ` Benjamin Herrenschmidt
2015-07-28 23:33 ` Andy Lutomirski
2015-07-28 23:33 ` Andy Lutomirski
2015-07-29 0:36 ` Benjamin Herrenschmidt
2015-07-29 0:36 ` Benjamin Herrenschmidt
2015-07-29 0:47 ` Andy Lutomirski
2015-07-29 0:47 ` Andy Lutomirski
2015-07-29 0:54 ` Benjamin Herrenschmidt
2015-07-29 0:54 ` Benjamin Herrenschmidt
2015-07-29 8:17 ` Paolo Bonzini
2015-07-29 8:20 ` Jan Kiszka
2015-07-29 8:20 ` Jan Kiszka
2015-07-29 9:21 ` Benjamin Herrenschmidt
2015-07-29 9:21 ` Benjamin Herrenschmidt
2015-07-29 8:17 ` Paolo Bonzini
2015-07-29 8:07 ` Jan Kiszka
2015-07-29 8:07 ` Jan Kiszka [this message]
2015-07-28 23:21 ` Benjamin Herrenschmidt
2015-07-28 19:33 ` Jan Kiszka
2015-07-28 16:11 ` Andy Lutomirski
2015-07-28 16:36 ` Paolo Bonzini
2015-07-28 16:36 ` Paolo Bonzini
2015-07-28 16:42 ` Jan Kiszka
2015-07-28 17:15 ` Paolo Bonzini
2015-07-28 17:15 ` Paolo Bonzini
2015-07-28 17:19 ` Jan Kiszka
2015-07-28 17:19 ` Jan Kiszka
2015-07-28 17:31 ` Paolo Bonzini
2015-07-28 17:31 ` Paolo Bonzini
2015-07-28 16:42 ` Jan Kiszka
2015-07-28 13:11 ` Jan Kiszka
2015-07-28 12:46 ` Paolo Bonzini
2015-07-28 13:08 ` Michael S. Tsirkin
2015-07-28 13:08 ` Michael S. Tsirkin
-- strict thread matches above, loose matches on Subject: below --
2015-07-28 1:08 Andy Lutomirski
2014-09-01 17:39 Andy Lutomirski
2014-09-01 22:16 ` Benjamin Herrenschmidt
2014-09-02 5:55 ` Andy Lutomirski
2014-09-02 20:53 ` Benjamin Herrenschmidt
2014-09-02 20:56 ` Konrad Rzeszutek Wilk
2014-09-02 21:08 ` Benjamin Herrenschmidt
2014-09-02 21:37 ` Andy Lutomirski
2014-09-02 22:10 ` Benjamin Herrenschmidt
2014-09-02 23:11 ` Andy Lutomirski
2014-09-02 23:20 ` Benjamin Herrenschmidt
2014-09-02 23:42 ` Andy Lutomirski
2014-09-03 0:25 ` Benjamin Herrenschmidt
2014-09-03 0:32 ` Andy Lutomirski
2014-09-03 0:43 ` Benjamin Herrenschmidt
2014-09-04 2:03 ` Andy Lutomirski
2014-09-03 7:47 ` Paolo Bonzini
2014-09-03 7:52 ` Andy Lutomirski
2014-09-03 8:01 ` Paolo Bonzini
2014-09-03 8:05 ` Benjamin Herrenschmidt
2014-09-03 12:11 ` Paolo Bonzini
2014-09-03 15:07 ` Andy Lutomirski
2014-09-03 15:11 ` Paolo Bonzini
2014-09-03 16:39 ` Michael S. Tsirkin
2014-09-03 20:38 ` Andy Lutomirski
2014-09-03 7:43 ` Paolo Bonzini
2014-09-03 6:42 ` Rusty Russell
2014-09-03 7:50 ` Andy Lutomirski
2014-09-05 2:31 ` Rusty Russell
2014-09-05 2:57 ` Andy Lutomirski
2014-09-05 5:20 ` Benjamin Herrenschmidt
2014-09-05 7:33 ` Christian Borntraeger
2014-09-10 15:36 ` Christopher Covington
2014-09-10 16:15 ` Andy Lutomirski
2014-09-05 5:16 ` Benjamin Herrenschmidt
2014-09-14 8:58 ` Michael S. Tsirkin
2014-09-03 12:51 ` Michael S. Tsirkin
2014-09-05 2:32 ` Rusty Russell
2014-09-05 3:06 ` Andy Lutomirski
2014-09-02 21:10 ` Michael S. Tsirkin
2014-09-02 21:49 ` Andy Lutomirski
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