From: Paolo Bonzini <pbonzini@redhat.com>
To: "Tian, Kevin" <kevin.tian@intel.com>,
Gerd Hoffmann <kraxel@redhat.com>,
"Song, Jike" <jike.song@intel.com>
Cc: "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"White, Michael L" <michael.l.white@intel.com>,
"Dong, Eddie" <eddie.dong@intel.com>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"Li, Susie" <susie.li@intel.com>,
"Cowperthwaite, David J" <david.j.cowperthwaite@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Haron, Sandra" <sandra.haron@intel.com>
Subject: Re: [ANNOUNCE][RFC] KVMGT - the implementation of Intel GVT-g(full GPU virtualization) for KVM
Date: Wed, 10 Dec 2014 17:59:05 +0100 [thread overview]
Message-ID: <54887BD9.7030903@redhat.com> (raw)
In-Reply-To: <AADFC41AFE54684AB9EE6CBC0274A5D12611365D@SHSMSX101.ccr.corp.intel.com>
On 09/12/2014 03:49, Tian, Kevin wrote:
> - Now we have XenGT/KVMGT separately maintained, and KVMGT lags
> behind XenGT regarding to features and qualities. Likely you'll continue
> see stale code (like Xen inst decoder) for some time. In the future we
> plan to maintain a single kernel repo for both, so KVMGT can share
> same quality as XenGT once KVM in-kernel dm framework is stable.
>
> - Regarding to Qemu hacks, KVMGT really doesn't have any different
> requirements as what have been discussed for GPU pass-through, e.g.
> about ISA bridge. Our implementation is based on an old Qemu repo,
> and honestly speaking not cleanly developed, because we know we
> can leverage from GPU pass-through support once it's in Qemu. At
> that time we'll leverage the same logic with minimal changes to
> hook KVMGT mgmt. APIs (e.g. create/destroy a vGPU instance). So
> we can ignore this area for now. :-)
Could the virtual device model introduce new registers in order to avoid
poking at the ISA bridge? I'm not sure that you "can leverage from GPU
pass-through support once it's in Qemu", since the Xen IGD passthrough
support is being added to a separate machine that is specific to Xen IGD
passthrough; no ISA bridge hacking will probably be allowed on the "-M
pc" and "-M q35" machine types.
Paolo
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next prev parent reply other threads:[~2014-12-10 16:59 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-04 2:24 [ANNOUNCE][RFC] KVMGT - the implementation of Intel GVT-g(full GPU virtualization) for KVM Jike Song
2014-12-04 19:56 ` Igor Gnatenko
2014-12-05 8:50 ` Gerd Hoffmann
2014-12-05 13:03 ` Paolo Bonzini
2014-12-06 4:30 ` Jike Song
2014-12-09 2:49 ` Tian, Kevin
2014-12-10 16:59 ` Paolo Bonzini [this message]
2014-12-11 0:33 ` Tian, Kevin
2014-12-11 1:38 ` Paolo Bonzini
2014-12-05 13:54 ` Daniel Vetter
2014-12-06 4:32 ` Jike Song
2014-12-06 4:17 ` Jike Song
2014-12-08 9:55 ` Gerd Hoffmann
2014-12-08 10:20 ` Daniel Vetter
2014-12-09 2:51 ` Tian, Kevin
2014-12-09 9:54 ` Jan Kiszka
2014-12-10 6:31 ` Jike Song
2014-12-10 6:34 ` Jike Song
2014-12-10 7:28 ` Tian, Kevin
2015-10-27 9:36 ` Jike Song
2016-01-27 6:32 ` [ANNOUNCE] 2015-Q4 release of KVMGT (Was Re: KVMGT - the implementation of ...) Jike Song
2016-04-16 6:31 ` [ANNOUNCE] 2016-Q1 " Jike Song
2016-07-20 4:52 ` [ANNOUNCE] 2016-Q2 " Jike Song
2016-11-06 15:23 ` [ANNOUNCE] 2016-Q3 " Jike Song
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