From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1IqDhI-0005og-Rl for qemu-devel@nongnu.org; Thu, 08 Nov 2007 15:09:52 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1IqDhE-0005mn-5B for qemu-devel@nongnu.org; Thu, 08 Nov 2007 15:09:52 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IqDhD-0005mk-Vg for qemu-devel@nongnu.org; Thu, 08 Nov 2007 15:09:48 -0500 Received: from bangui.magic.fr ([195.154.194.245]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1IqDhD-0000b4-F3 for qemu-devel@nongnu.org; Thu, 08 Nov 2007 15:09:47 -0500 Subject: Re: [Qemu-devel] Removal of some target CPU macros From: "J. Mayer" In-Reply-To: <6FED2620-5A45-4C4F-8AA5-C509BC2323D7@adacore.com> References: <473204A2.3030208@bellard.org> <1194463004.855.41.camel@jma4.dev.netgem.com> <6FED2620-5A45-4C4F-8AA5-C509BC2323D7@adacore.com> Content-Type: text/plain Date: Thu, 08 Nov 2007 21:09:22 +0100 Message-Id: <1194552562.21588.36.camel@rapid> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: TristanGingold On Thu, 2007-11-08 at 14:09 +0100, Tristan Gingold wrote: > Two side comments: Hi, > > Note that most (all ?) embedded Freescale PowerPC microcontrollers > > implement those extensions and that some ones are greatly interrested > > with having an usable emulation avaible for those CPUs. > > Has anyone started to implement spe ? Large parts of the SPE extensions are implemented, most fixed-point operations (but the multiply and add family) and I think almost all floating-point operations (the flags are not properly emulated, for now). But there's a lack of a CPU model that would really use it. It could be made available very easily for a test CPU for user-mode only, as it is now. The MMU model used on Freescale cores is not implemented yet, then the full-system emulation would not be possible for now. > > - someone provide an open-source hypervisor, compatible with the ones > > used on real machines, that would allow at least Linux to be able > > to run > > on a CPU with hypervisor mode available. > > Does xen/ppc satisfy your requirement ? > Maybe Hollis will comment. I don't know really. I guess it may do for the more urgent need which is to have a fully "transparent" hypervisor that would enable the OS to access all resources. I won't bet it could be a replacement for IBM hypervisor software as the full specifications of this software have still not be fully released (the PPAR document, which describes the whole hypervisor features is still a draft). But it's a good idea, I may take a look of what it could provide. -- J. Mayer Never organized