From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45179) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YaaMI-0006Hk-1C for qemu-devel@nongnu.org; Tue, 24 Mar 2015 21:43:51 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YaaME-0005qw-QX for qemu-devel@nongnu.org; Tue, 24 Mar 2015 21:43:49 -0400 Received: from mail-pa0-x22a.google.com ([2607:f8b0:400e:c03::22a]:33861) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YaaME-0005qa-JK for qemu-devel@nongnu.org; Tue, 24 Mar 2015 21:43:46 -0400 Received: by pacwe9 with SMTP id we9so11699034pac.1 for ; Tue, 24 Mar 2015 18:43:45 -0700 (PDT) Message-ID: <551212CF.8050602@gmail.com> Date: Tue, 24 Mar 2015 18:43:43 -0700 From: Sergey Fedorov MIME-Version: 1.0 References: <1427241331-11403-1-git-send-email-serge.fdrv@gmail.com> <5511FEF0.30403@gmail.com> <551201C7.6030500@gmail.com> <55120FA6.8030605@gmail.com> In-Reply-To: <55120FA6.8030605@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 0/3] hw/arm: add Fixed Virtual Platform VE support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: QEMU Developers On 24.03.2015 18:30, Sergey Fedorov wrote: > On 24.03.2015 17:48, Peter Maydell wrote: >> On 25 March 2015 at 00:31, Sergey Fedorov wrote: >>> On 24.03.2015 17:23, Peter Maydell wrote: >>>> On 25 March 2015 at 00:18, Sergey Fedorov wrote: >>>>> This model uses spin table boot method. >>>> Yes, I noticed, that's a strong reason why I don't want to >>>> add it if we can avoid it :-) >>> Why not? :-) >> Because PSCI is the expected method for SMP support for >> new 64-bit boards (as I understand it) and so I'd rather >> not add a lot of legacy spintable code unless we really >> need the board support for some other reason. >> >>>> We already support SMP on AArch64 in TCG mode using PSCI. >>> Ah, seems I missed this. But isn't it supported only in 'virt' >>> board? >> Yes, at the moment. But then 'virt' is our only 64 bit board... > So if I understand you correctly, it would be suitable to implement a > model like Juno ARM Development Platform in order to get AArch64 VE > model with SMP support in system mode? As you can guess, my objective is to get a model based on Versatile Express with Cortex-A57 CPU which could be used to run an SMP Linux kernel on system mode QEMU. So I decided to use the same model as ARM FastModels provides. I could get ARMv8-A Foundation Platform model as well, but it also uses spin table boot method. Seems there's no much choice. Best regards, Sergey