From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov Subject: Re: [PATCH 00/31] KVM/MIPS: Implement hardware virtualization via the MIPS-VZ extensions. Date: Mon, 10 Jun 2013 09:18:49 +0300 Message-ID: <20130610061849.GX4725@redhat.com> References: <1370646215-6543-1-git-send-email-ddaney.cavm@gmail.com> <51B26974.5000306@caviumnetworks.com> <20130609073115.GE4725@redhat.com> <51B50E87.2060501@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: David Daney , David Daney , kvm@vger.kernel.org, linux-mips@linux-mips.org, ralf@linux-mips.org, Sanjay Lal , linux-kernel@vger.kernel.org, David Daney To: David Daney Return-path: Content-Disposition: inline In-Reply-To: <51B50E87.2060501@gmail.com> Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-subscribe: List-owner: List-post: List-archive: List-Id: kvm.vger.kernel.org On Sun, Jun 09, 2013 at 04:23:51PM -0700, David Daney wrote: > On 06/09/2013 12:31 AM, Gleb Natapov wrote: > >On Fri, Jun 07, 2013 at 04:15:00PM -0700, David Daney wrote: > >>I should also add that I will shortly send patches for the kvm tool > >>required to drive this VM as well as a small set of patches that > >>create a para-virtualized MIPS/Linux guest kernel. > >> > >>The idea is that because there is no standard SMP linux system, we > >>create a standard para-virtualized system that uses a handful of > >>hypercalls, but mostly just uses virtio devices. It has no emulated > >>real hardware (no 8250 UART, no emulated legacy anything...) > >> > >Virtualization is useful for running legacy code. Why dismiss support > >for non pv guests so easily? > > Just because we create standard PV system devices, doesn't preclude > emulating real hardware. In fact Sanjay Lal's work includes QEMU > support for doing just this for a MIPS malta board. I just wanted a > very simple system I could implement with the kvm tool in a couple > of days, so that is what I initially did. > That makes sense. From your wording I misunderstood that there is something in proposed patches that requires PV to run a guest. -- Gleb.