From: pbonzini@redhat.com (Paolo Bonzini)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC] ARM VM System Sepcification
Date: Mon, 24 Mar 2014 11:46:13 +0100 [thread overview]
Message-ID: <53300CF5.5090808@redhat.com> (raw)
In-Reply-To: <20140324095723.GJ23363@mal.justgohome.co.uk>
Il 24/03/2014 10:57, Robie Basak ha scritto:
>> > After thinking about this a bit more, I think I see what we're actually
>> > discussing. It's obvious that if software in a VM makes changes to UEFI
>> > variables that are required to be persistent for that VM image to boot
>> > again, then the VM image is no longer portable, as per the spec.
> No longer portable, and given the current state of implementation, no
> longer bootable, since we don't support persistent storage yet;
> certainly not on OpenStack? Or do we have that now?
>
> Are we really pushing ahead with a specification that nobody can
> implement today? How far away are we from a fully compliant
> implementation?
The spec says SHOULD, so I think it's fine. While support for
persistent variables in the KVM stack is in the early stages, there is
request and it is not ARM-specific. It will be implemented sooner
rather than later at least at the libvirt level, and I suppose qemu-arm,
xl, OpenStack/, Virt, XenServer and everything else will follow soon.
Paolo
WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: Robie Basak <robie.basak@canonical.com>,
Christoffer Dall <christoffer.dall@linaro.org>
Cc: Grant Likely <grant.likely@linaro.org>,
Laszlo Ersek <lersek@redhat.com>,
cross-distro@lists.linaro.org,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"kvmarm@lists.cs.columbia.edu" <kvmarm@lists.cs.columbia.edu>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
xen-devel@lists.xen.org,
Michael Casadevall <Michael.casadevall@linaro.org>,
Rob Herring <rob.herring@linaro.org>,
Peter Maydell <peter.maydell@linaro.org>,
"marc.zyngier@arm.com" <marc.zyngier@arm.com>,
Leif Lindholm <leif.lindholm@linaro.org>,
Stefano Stabellini <stefano.stabellini@citrix.com>,
Ian Campbell <ian.campbell@citrix.com>,
Jordan Justen <jljusten@gmail.com>
Subject: Re: [RFC] ARM VM System Sepcification
Date: Mon, 24 Mar 2014 11:46:13 +0100 [thread overview]
Message-ID: <53300CF5.5090808@redhat.com> (raw)
In-Reply-To: <20140324095723.GJ23363@mal.justgohome.co.uk>
Il 24/03/2014 10:57, Robie Basak ha scritto:
>> > After thinking about this a bit more, I think I see what we're actually
>> > discussing. It's obvious that if software in a VM makes changes to UEFI
>> > variables that are required to be persistent for that VM image to boot
>> > again, then the VM image is no longer portable, as per the spec.
> No longer portable, and given the current state of implementation, no
> longer bootable, since we don't support persistent storage yet;
> certainly not on OpenStack? Or do we have that now?
>
> Are we really pushing ahead with a specification that nobody can
> implement today? How far away are we from a fully compliant
> implementation?
The spec says SHOULD, so I think it's fine. While support for
persistent variables in the KVM stack is in the early stages, there is
request and it is not ARM-specific. It will be implemented sooner
rather than later at least at the libvirt level, and I suppose qemu-arm,
xl, OpenStack/, Virt, XenServer and everything else will follow soon.
Paolo
next prev parent reply other threads:[~2014-03-24 10:46 UTC|newest]
Thread overview: 222+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-26 18:34 [RFC] ARM VM System Sepcification Christoffer Dall
2014-02-26 18:34 ` Christoffer Dall
[not found] ` < CACxGe6tjuytsYAn6Hadf0AK+REzHgRydgbHPafL8+Sdtd_tMUA@mail.gmail.com>
2014-02-26 19:27 ` Christopher Covington
2014-02-26 19:27 ` Christopher Covington
2014-02-26 19:51 ` Christoffer Dall
2014-02-26 19:51 ` Christoffer Dall
2014-02-27 13:12 ` Christopher Covington
2014-02-27 13:12 ` Christopher Covington
2014-02-27 13:12 ` Christopher Covington
2014-02-27 16:02 ` Christoffer Dall
2014-02-27 16:02 ` Christoffer Dall
2014-02-27 16:02 ` Christoffer Dall
2014-03-01 15:41 ` Grant Likely
2014-03-01 15:41 ` Grant Likely
2014-02-26 19:51 ` Christoffer Dall
2014-02-26 19:27 ` Christopher Covington
2014-02-26 19:55 ` Arnd Bergmann
2014-02-26 19:55 ` Arnd Bergmann
2014-02-26 20:05 ` Christoffer Dall
2014-02-26 20:05 ` Christoffer Dall
2014-02-26 20:05 ` Christoffer Dall
2014-02-26 20:22 ` Arnd Bergmann
2014-02-26 20:22 ` Arnd Bergmann
2014-02-26 20:22 ` Arnd Bergmann
[not found] ` < CABGGisxHOVqLcG7hVAuAzdeic41KWSLLBSjQLSJQcjTXLhNCow@mail.gmail.com>
2014-02-26 21:56 ` Rob Herring
2014-02-26 21:56 ` Rob Herring
2014-02-26 21:56 ` Rob Herring
2014-02-26 22:21 ` Christoffer Dall
2014-02-26 22:21 ` Christoffer Dall
2014-02-26 22:21 ` Christoffer Dall
2014-02-27 7:30 ` Arnd Bergmann
2014-02-27 7:30 ` Arnd Bergmann
2014-02-27 10:05 ` Paolo Bonzini
2014-02-27 10:05 ` Paolo Bonzini
2014-02-27 10:05 ` Paolo Bonzini
2014-02-27 7:30 ` Arnd Bergmann
2014-03-01 19:12 ` Grant Likely
2014-03-01 19:12 ` Grant Likely
2014-03-01 19:12 ` Grant Likely
2014-02-27 9:35 ` Catalin Marinas
2014-02-27 9:35 ` Catalin Marinas
2014-02-27 9:35 ` Catalin Marinas
2014-02-26 20:19 ` Paolo Bonzini
2014-02-26 20:19 ` Paolo Bonzini
2014-02-26 20:20 ` Peter Maydell
2014-02-26 20:20 ` Peter Maydell
2014-02-26 20:20 ` Peter Maydell
2014-02-26 20:19 ` Paolo Bonzini
2014-02-26 21:48 ` Leif Lindholm
2014-02-26 21:48 ` Leif Lindholm
2014-02-26 22:25 ` Christoffer Dall
2014-02-26 22:25 ` Christoffer Dall
2014-03-01 19:20 ` Grant Likely
2014-03-01 19:20 ` Grant Likely
2014-03-01 19:20 ` Grant Likely
2014-02-26 22:25 ` Christoffer Dall
2014-02-27 12:31 ` Stefano Stabellini
2014-02-27 12:31 ` Stefano Stabellini
2014-02-27 14:00 ` Arnd Bergmann
2014-02-27 14:00 ` Arnd Bergmann
2014-02-27 14:00 ` Arnd Bergmann
2014-02-27 14:24 ` Alexander Graf
2014-02-27 14:24 ` Alexander Graf
2014-02-27 19:56 ` Arnd Bergmann
2014-02-27 19:56 ` Arnd Bergmann
2014-02-28 0:05 ` Alexander Graf
2014-02-28 0:05 ` Alexander Graf
2014-02-28 10:01 ` Arnd Bergmann
2014-02-28 10:01 ` Arnd Bergmann
2014-02-28 10:01 ` Arnd Bergmann
[not found] ` <CB7DBE07-42BD-4588-AC9E-CB0BF95A811A-l3A5Bk7waGM@public.gmane.org>
2014-02-28 13:38 ` Riku Voipio
2014-02-28 13:38 ` Riku Voipio
2014-02-28 14:44 ` Stefano Stabellini
2014-02-28 14:44 ` Stefano Stabellini
2014-02-28 14:44 ` Stefano Stabellini
2014-02-28 0:05 ` Alexander Graf
2014-02-27 19:56 ` Arnd Bergmann
2014-02-27 14:24 ` Alexander Graf
2014-03-01 19:25 ` Grant Likely
2014-03-01 19:25 ` Grant Likely
2014-03-01 19:25 ` Grant Likely
2014-02-27 12:31 ` Stefano Stabellini
2014-02-26 21:48 ` Leif Lindholm
2014-02-26 22:49 ` Rob Herring
2014-02-26 22:49 ` Rob Herring
2014-02-26 22:49 ` Rob Herring
2014-02-26 22:54 ` Peter Maydell
2014-02-26 22:54 ` Peter Maydell
2014-02-26 22:54 ` Peter Maydell
2014-02-26 23:08 ` Rob Herring
2014-02-26 23:08 ` Rob Herring
2014-02-26 23:14 ` Peter Maydell
2014-02-26 23:14 ` Peter Maydell
2014-02-26 23:14 ` Peter Maydell
2014-02-27 4:06 ` Nicolas Pitre
2014-02-27 4:06 ` Nicolas Pitre
2014-02-27 4:06 ` Nicolas Pitre
2014-02-27 11:36 ` Robie Basak
2014-02-27 11:36 ` Robie Basak
2014-02-27 11:36 ` Robie Basak
2014-02-26 23:08 ` Rob Herring
2014-02-26 23:13 ` Christopher Covington
2014-02-26 23:13 ` Christopher Covington
2014-02-26 23:13 ` Christopher Covington
2014-02-26 19:55 ` Arnd Bergmann
2014-02-26 21:05 ` Michael Hudson-Doyle
2014-02-26 21:05 ` Michael Hudson-Doyle
2014-02-26 21:08 ` Christoffer Dall
2014-02-26 21:08 ` Christoffer Dall
2014-02-26 21:08 ` Christoffer Dall
2014-02-26 21:05 ` Michael Hudson-Doyle
2014-02-26 22:35 ` Grant Likely
2014-02-26 22:47 ` Christoffer Dall
2014-02-26 22:47 ` Christoffer Dall
2014-02-26 22:47 ` Christoffer Dall
2014-02-27 12:27 ` Stefano Stabellini
2014-02-27 12:27 ` Stefano Stabellini
2014-03-01 19:54 ` Grant Likely
2014-03-01 19:54 ` Grant Likely
2014-03-02 9:29 ` Peter Maydell
2014-03-02 9:29 ` Peter Maydell
2014-03-02 9:29 ` Peter Maydell
2014-03-01 19:54 ` Grant Likely
2014-02-27 12:27 ` Stefano Stabellini
2014-02-27 12:55 ` Peter Maydell
2014-02-27 12:55 ` Peter Maydell
2014-02-27 12:55 ` Peter Maydell
2014-02-26 22:35 ` Grant Likely
2014-02-27 0:41 ` Blibbet
2014-02-27 0:41 ` Blibbet
2014-02-27 0:41 ` Blibbet
[not found] ` <20140226134251.0436294e@anubis.ausil.us>
[not found] ` <CAMJs5B9bCs8Oz2Zg4UK--A3H4AaZRPMwy7SpxYom-1--_=qhBQ@mail.gmail.com>
[not found] ` <20140226151536.58154704@anubis.ausil.us>
2014-02-27 17:34 ` Grant Likely
2014-02-27 17:34 ` Grant Likely
2014-02-27 17:34 ` Grant Likely
2014-03-01 15:27 ` Grant Likely
2014-03-01 15:27 ` Grant Likely
2014-03-03 1:13 ` Christoffer Dall
2014-03-03 1:13 ` Christoffer Dall
2014-03-03 1:13 ` Christoffer Dall
2014-03-06 8:52 ` Robie Basak
2014-03-06 8:52 ` Robie Basak
2014-03-06 9:46 ` Paolo Bonzini
2014-03-06 9:46 ` Paolo Bonzini
2014-03-06 9:46 ` Paolo Bonzini
2014-03-06 11:44 ` Laszlo Ersek
2014-03-06 11:44 ` Laszlo Ersek
2014-03-06 11:44 ` Laszlo Ersek
2014-03-06 12:04 ` Robie Basak
2014-03-06 12:04 ` Robie Basak
2014-03-06 12:10 ` Paolo Bonzini
2014-03-06 12:10 ` Paolo Bonzini
2014-03-06 12:10 ` Paolo Bonzini
2014-03-07 12:24 ` Grant Likely
2014-03-07 12:24 ` Grant Likely
[not found] ` < 20140322010206.GF25519@cbox>
2014-03-22 2:29 ` Christoffer Dall
2014-03-22 2:29 ` Christoffer Dall
2014-03-22 2:29 ` Christoffer Dall
2014-03-22 8:08 ` Paolo Bonzini
2014-03-22 8:08 ` Paolo Bonzini
2014-03-23 3:19 ` Christoffer Dall
2014-03-23 3:19 ` Christoffer Dall
2014-03-23 3:29 ` Christoffer Dall
2014-03-23 3:29 ` Christoffer Dall
2014-03-23 3:29 ` Christoffer Dall
2014-03-24 9:57 ` Robie Basak
2014-03-24 9:57 ` Robie Basak
2014-03-24 9:57 ` Robie Basak
2014-03-24 10:46 ` Paolo Bonzini
2014-03-24 10:46 ` Paolo Bonzini [this message]
2014-03-24 10:46 ` Paolo Bonzini
2014-03-23 3:19 ` Christoffer Dall
2014-03-22 8:08 ` Paolo Bonzini
2014-03-22 12:23 ` Grant Likely
2014-03-22 12:23 ` Grant Likely
2014-03-22 19:57 ` Paolo Bonzini
2014-03-22 19:57 ` Paolo Bonzini
2014-03-22 22:35 ` Grant Likely
2014-03-22 22:35 ` Grant Likely
2014-03-22 22:35 ` Grant Likely
2014-03-22 23:38 ` Michael Casadevall
2014-03-22 23:38 ` Michael Casadevall
2014-03-22 23:38 ` Michael Casadevall
2014-03-23 0:33 ` Laszlo Ersek
2014-03-23 0:33 ` Laszlo Ersek
2014-03-23 0:33 ` Laszlo Ersek
2014-03-22 19:57 ` Paolo Bonzini
2014-03-23 3:23 ` Christoffer Dall
2014-03-23 3:23 ` Christoffer Dall
2014-03-23 3:23 ` Christoffer Dall
2014-03-24 9:03 ` Ian Campbell
2014-03-24 9:03 ` Ian Campbell
2014-03-24 9:03 ` Ian Campbell
2014-03-24 10:41 ` Paolo Bonzini
2014-03-24 10:41 ` Paolo Bonzini
2014-03-24 10:41 ` Paolo Bonzini
2014-03-24 10:47 ` Ian Campbell
2014-03-24 10:47 ` Ian Campbell
2014-03-24 10:47 ` Ian Campbell
2014-03-24 12:13 ` Grant Likely
2014-03-24 12:13 ` Grant Likely
2014-03-24 12:16 ` Ian Campbell
2014-03-24 12:16 ` Ian Campbell
2014-03-24 12:16 ` Ian Campbell
2014-03-24 12:13 ` Grant Likely
2014-03-22 12:23 ` Grant Likely
2014-03-07 12:24 ` Grant Likely
2014-03-06 12:04 ` Robie Basak
2014-03-07 12:19 ` Grant Likely
2014-03-07 12:19 ` Grant Likely
2014-03-07 12:19 ` Grant Likely
2014-03-08 11:41 ` Michael Casadevall
2014-03-08 11:41 ` Michael Casadevall
2014-03-08 11:41 ` Michael Casadevall
2014-03-08 20:41 ` Laszlo Ersek
2014-03-08 20:41 ` Laszlo Ersek
2014-03-08 20:41 ` Laszlo Ersek
2014-03-07 12:09 ` Grant Likely
2014-03-07 12:09 ` Grant Likely
2014-03-07 12:09 ` Grant Likely
2014-03-06 8:52 ` Robie Basak
2014-03-01 15:27 ` Grant Likely
-- strict thread matches above, loose matches on Subject: below --
2014-02-26 18:34 Christoffer Dall
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