From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56607) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YfTZn-0007Yp-Sg for qemu-devel@nongnu.org; Tue, 07 Apr 2015 09:30:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YfTZi-0006Hg-A2 for qemu-devel@nongnu.org; Tue, 07 Apr 2015 09:29:59 -0400 Received: from mx1.redhat.com ([209.132.183.28]:58039) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YfTZi-0006HS-3X for qemu-devel@nongnu.org; Tue, 07 Apr 2015 09:29:54 -0400 Message-ID: <5523DBC6.5000102@redhat.com> Date: Tue, 07 Apr 2015 15:29:42 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <1427932716-11800-1-git-send-email-namit@cs.technion.ac.il> <551D3768.9090404@redhat.com> <5523AE38.6000701@suse.de> <5523B2C6.5080601@redhat.com> <5523B518.5050902@suse.de> <5523B755.2080909@redhat.com> <5523BB00.3040404@suse.de> <5523C62E.6010507@suse.de> <20150407151448.0ec7484d@igors-macbook-pro.local> <5523DA7B.9060008@suse.de> In-Reply-To: <5523DA7B.9060008@suse.de> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] target-i386: clear bsp bit when designating bsp List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: =?UTF-8?B?QW5kcmVhcyBGw6RyYmVy?= , Igor Mammedov Cc: Eduardo Habkost , Nadav Amit , mst@redhat.com, qemu-devel@nongnu.org, nadav.amit@gmail.com, rth@twiddle.net On 07/04/2015 15:24, Andreas F=C3=A4rber wrote: >> > /* We hard-wire the BSP to the first CPU. */ >> > if (s->cpu_index =3D=3D 0) { >> > apic_designate_bsp(cpu->apic_state); >> > } > I know, that's what this patch is changing, and I am saying that by the > same logic the CPU has no business fiddling with the APIC's apicbase > field when the APIC's reset is touching that very same field. That's exactly what a real CPU does on power up or #RESET, though. Paolo