From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34326) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uq017-0001O5-0L for qemu-devel@nongnu.org; Fri, 21 Jun 2013 08:01:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Uq00r-0001Bf-R3 for qemu-devel@nongnu.org; Fri, 21 Jun 2013 08:00:36 -0400 Received: from mail-we0-x234.google.com ([2a00:1450:400c:c03::234]:33010) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uq00r-0001BG-Jk for qemu-devel@nongnu.org; Fri, 21 Jun 2013 08:00:21 -0400 Received: by mail-we0-f180.google.com with SMTP id w56so6202834wes.25 for ; Fri, 21 Jun 2013 05:00:20 -0700 (PDT) Sender: Paolo Bonzini Message-ID: <51C44051.1010409@redhat.com> Date: Fri, 21 Jun 2013 14:00:17 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <1366381460-6041-1-git-send-email-pbonzini@redhat.com> <1366381460-6041-3-git-send-email-pbonzini@redhat.com> <5D9ACBBCF6B270468D615C4719A59BE359CD49DA@szxeml548-mbx.china.huawei.com> <51C40260.3030602@redhat.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 2/9] scsi: VMWare PVSCSI paravirtual device implementation List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Dmitry Fleytman Cc: Yan Vugenfirer , Libaiqing , "qemu-devel@nongnu.org" , "nab@linux-iscsi.org" , "asias@redhat.com" Il 21/06/2013 13:44, Dmitry Fleytman ha scritto: > BTW, > > Can't we add to QEMU some simplified interface (device) for boot time only, > so that system will be able to boot without SeaBIOS support for specific > device? We had it, and we dropped it. :) Writing a SeaBIOS driver is very easy, and the biggest limitation of pvscsi is that it doesn't support the VMware option ROM. There is a simple interface using only I/O BARs, or so I was told, exactly for the purpose of booting---but we do not implement that interface. I'm not sure how hard it would be to reverse engineere it, I do not have access to vSphere. Paolo