From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58515) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aX2bn-0001yX-9k for qemu-devel@nongnu.org; Sat, 20 Feb 2016 03:09:44 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aX2bk-0008Ul-4P for qemu-devel@nongnu.org; Sat, 20 Feb 2016 03:09:43 -0500 Received: from mout.web.de ([212.227.15.4]:60195) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aX2bj-0008Uh-RV for qemu-devel@nongnu.org; Sat, 20 Feb 2016 03:09:40 -0500 From: Jan Kiszka Message-ID: <56C81F3C.4010006@web.de> Date: Sat, 20 Feb 2016 09:09:32 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] kvm: "warning: host doesn't support requested feature: CPUID.01H:ECX.x2apic [bit 21]" List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Eduardo Habkost , Paolo Bonzini Cc: qemu-devel , kvm Hi all, I suppose 5120901a37 introduced this: qemu with kernel_irqchip=off now generates these warnings, one per VCPU, during QEMU startup. Is the plan to live with them until we finally have x2APIC emulation in userspace (ie. also MSR vmexiting to there), or should we otherwise avoid it? Thanks, Jan