From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ted Ts'o Subject: Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels Date: Sun, 6 Nov 2011 13:31:32 -0500 Message-ID: <20111106183132.GA4500@thunk.org> References: <4EB67486.1070105@redhat.com> <4EB67D17.7000701@redhat.com> <4EB680D9.2070706@redhat.com> <4EB6AE34.2000907@redhat.com> <4EB6BAED.2030400@redhat.com> <4EB6BEFA.6000303@codemonkey.ws> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Avi Kivity , Pekka Enberg , "kvm@vger.kernel.org list" , "linux-kernel@vger.kernel.org List" , qemu-devel Developers , Alexander Graf , Blue Swirl , =?iso-8859-1?Q?Am=E9rico?= Wang , Ingo Molnar , Linus Torvalds To: Anthony Liguori Return-path: Content-Disposition: inline In-Reply-To: <4EB6BEFA.6000303@codemonkey.ws> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On Sun, Nov 06, 2011 at 11:08:10AM -0600, Anthony Liguori wrote: > I'm quite happy with KVM tool and hope they continue working on it. > My only real wish is that they wouldn't copy QEMU so much and would > try bolder things that are fundamentally different from QEMU. My big wish is that they don't try to merge the KVM tool into the kernel code. It's a separate userspace project, and there's no reason for it to be bundled with kernel code. It just makes the kernel sources larger. The mere fact that qemu-kvm exists means that the KVM interface has to remain backward compatible; it *is* an ABI. So integrating kvm-tool into the kernel isn't going to work as a free pass to make non-backwards compatible changes to the KVM user/kernel interface. Given that, why bloat the kernel source tree size? Please, keep the kvm-tool sources as a separate git tree. - Ted