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[79.181.91.42]) by smtp.gmail.com with ESMTPSA id c45sm37177726qte.70.2019.08.01.12.45.36 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 01 Aug 2019 12:45:38 -0700 (PDT) Date: Thu, 1 Aug 2019 15:45:33 -0400 From: "Michael S. Tsirkin" To: Paolo Bonzini Message-ID: <20190801154456-mutt-send-email-mst@kernel.org> References: <20190729125755.45008-1-slp@redhat.com> <932a0c3c-b6cb-540f-ca07-1559c8fe9049@redhat.com> <9953cc99-80b3-814c-f75e-a16c987c23e5@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9953cc99-80b3-814c-f75e-a16c987c23e5@redhat.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.85.160.194 Subject: Re: [Qemu-devel] [RFC] virtio-mmio: implement modern (v2) personality (virtio-1) X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Laszlo Ersek , qemu-devel , Sergio Lopez Pascual Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, Aug 01, 2019 at 01:58:35AM +0200, Paolo Bonzini wrote: > On 30/07/19 18:06, Laszlo Ersek wrote: > > On 07/29/19 14:57, Sergio Lopez wrote: > >> Implement the modern (v2) personality, according to the VirtIO 1.0 > >> specification. > >> > >> Support for v2 among guests is not as widespread as it'd be > >> desirable. While the Linux driver has had it for a while, support is > >> missing, at least, from Tianocore EDK II, NetBSD and FreeBSD. > > > > That's right; not only are there no plans to implement virtio-mmio/1.0 > > for OVMF (to my knowledge), I'd even argue against such efforts. > > > > OVMF is a heavy-weight guest firmware, which I see entirely out of scope > > for "micro VMs". And so virtio-mmio/1.0 would seem like a needless & > > unwelcome complication, from the OVMF maintainership perspective. > > But given that, why not rip out virtio-mmio completely? > > Paolo >From OVMF? -- MST