From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37387) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WS31l-000264-V9 for qemu-devel@nongnu.org; Mon, 24 Mar 2014 07:26:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WS31f-0000n3-Px for qemu-devel@nongnu.org; Mon, 24 Mar 2014 07:26:49 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34823) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WS31f-0000mp-Iq for qemu-devel@nongnu.org; Mon, 24 Mar 2014 07:26:43 -0400 Date: Mon, 24 Mar 2014 13:25:50 +0200 From: "Michael S. Tsirkin" Message-ID: <1395657775-23832-14-git-send-email-mst@redhat.com> References: <1395657775-23832-1-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1395657775-23832-1-git-send-email-mst@redhat.com> Subject: [Qemu-devel] [PULL 13/15] sysemu.h: Document what MAX_CPUMASK_BITS really limits List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , Eduardo Habkost , Anthony Liguori From: Eduardo Habkost Signed-off-by: Eduardo Habkost Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- include/sysemu/sysemu.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h index b90df9a..90f192a 100644 --- a/include/sysemu/sysemu.h +++ b/include/sysemu/sysemu.h @@ -133,7 +133,14 @@ extern uint8_t qemu_extra_params_fw[2]; extern QEMUClockType rtc_clock; #define MAX_NODES 64 + +/* The following shall be true for all CPUs: + * cpu->cpu_index < max_cpus <= MAX_CPUMASK_BITS + * + * Note that cpu->get_arch_id() may be larger than MAX_CPUMASK_BITS. + */ #define MAX_CPUMASK_BITS 255 + extern int nb_numa_nodes; extern uint64_t node_mem[MAX_NODES]; extern unsigned long *node_cpumask[MAX_NODES]; -- MST