From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Date: Mon, 13 Dec 2010 08:35:04 +0000 Subject: Re: re-writing on powerpc Message-Id: <4D05DAB8.9010300@redhat.com> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm-ppc@vger.kernel.org On 12/13/2010 06:45 AM, Yoder Stuart-B08248 wrote: > Avi/Hollis, > > Exchanged some emails with Alex on the topic of rewriting on > powerpc KVM-- the current approach taken by Alex's PV patch is > to have a guest Linux paravirt itself, by re-writing certain > instructions. > > The downside to this approach (guest side patching) is that every OS > to be run on KVM has to be modified or dynamically patched. > > What were the reasons for not going down the path of doing the > re-writing in the hypervisor? (Alex couldn't remember the > specifics). What about doing it from Qemu? > Rewriting is dangerous if the guest is unaware of it. As soon as it is made aware of it, it might as well actually do it in the best way that suits it. -- error compiling committee.c: too many arguments to function