From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=36578 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PN2sZ-0006l2-T5 for qemu-devel@nongnu.org; Mon, 29 Nov 2010 07:30:55 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PN2sL-0000yH-Vs for qemu-devel@nongnu.org; Mon, 29 Nov 2010 07:30:47 -0500 Received: from goliath.siemens.de ([192.35.17.28]:19859) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PN2sL-0000xe-NQ for qemu-devel@nongnu.org; Mon, 29 Nov 2010 07:30:33 -0500 Message-ID: <4CF39CE5.9090204@siemens.com> Date: Mon, 29 Nov 2010 13:30:29 +0100 From: Jan Kiszka MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH] xen: Restrict build to x86 targets References: <4CF27C6D.9000401@web.de> <5C53BA9F-A1B7-4CAB-BFFC-F6111021A292@suse.de> In-Reply-To: <5C53BA9F-A1B7-4CAB-BFFC-F6111021A292@suse.de> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alexander Graf Cc: qemu-devel Am 29.11.2010 13:24, Alexander Graf wrote: > > On 28.11.2010, at 16:59, Jan Kiszka wrote: > >> From: Jan Kiszka >> >> Xen target bits in qemu are intended for x86. Let the build system >> reflect this and avoid useless building/linking for other targets. > > Not sure I understand the split. Xen is x86 only, yes. But why split it into host and target? Target usually defines the guest. The piece you marked as _HOST are target specific. At least so far, the HOST part is build once for all targets into the host backend library. As this step injected CONFIG_XEN into all target builds, even non-x86 targets built xen_machine_pv and xen_domainbuild. That's addressed by the patch. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux