From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45952) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XJs8Y-0008H2-JM for qemu-devel@nongnu.org; Tue, 19 Aug 2014 18:44:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XJs8T-0001EJ-Ho for qemu-devel@nongnu.org; Tue, 19 Aug 2014 18:44:18 -0400 Received: from mail-la0-f47.google.com ([209.85.215.47]:54997) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XJs8T-0001DQ-Al for qemu-devel@nongnu.org; Tue, 19 Aug 2014 18:44:13 -0400 Received: by mail-la0-f47.google.com with SMTP id mc6so6581038lab.34 for ; Tue, 19 Aug 2014 15:44:12 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <20140819213304.19537.2834.stgit@joelaarch64.amd.com> References: <20140819213304.19537.2834.stgit@joelaarch64.amd.com> From: Peter Maydell Date: Tue, 19 Aug 2014 23:43:52 +0100 Message-ID: Content-Type: text/plain; charset=UTF-8 Subject: Re: [Qemu-devel] [PATCH] aarch64: raise max_cpus to 8 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Joel Schopp Cc: QEMU Developers On 19 August 2014 22:33, Joel Schopp wrote: > I'm running on a system with 8 cpus and it would be nice to have qemu > support all of them. The attached patch does that and has been tested. > > That said, I'm not sure if 8 is enough or if we want to bump this even higher > now before systems with many more cpus come along. 255 anyone? 8 is the limit for a GICv2 system. But yes, we could have 8 CPUs here; I think this was just copied over from the vexpress boards (which have 4 because that hardware has 4.) thanks -- PMM