From patchwork Wed Apr 13 23:14:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heinrich Schuchardt X-Patchwork-Id: 12812775 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D6707C433F5 for ; Wed, 13 Apr 2022 23:16:11 +0000 (UTC) Received: from localhost ([::1]:50620 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nemDa-0003nX-EN for qemu-devel@archiver.kernel.org; Wed, 13 Apr 2022 19:16:10 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58858) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nemCd-00037L-0m; Wed, 13 Apr 2022 19:15:11 -0400 Received: from smtp-relay-canonical-1.canonical.com ([185.125.188.121]:57628) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nemCb-0006Ln-6p; Wed, 13 Apr 2022 19:15:10 -0400 Received: from LT2ubnt.fritz.box (ip-088-152-144-107.um26.pools.vodafone-ip.de [88.152.144.107]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-canonical-1.canonical.com (Postfix) with ESMTPSA id 17FF23F11D; Wed, 13 Apr 2022 23:15:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1649891703; bh=fgJytORPX/by9LBapE5V9ok+3BZR1lC/hRPbFADFbUk=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=XBRlCNQZyi3I/MrvjOt4ZLOxEVjOdqxCL6TxQ/u4bSbU/lx3ST7S9Tu/kBT/xdvLP W7z4hh8H/6/9rNYR8Nj8KaZKB6SHUwE+m9EAsb5Hzs22CkdqOrjARkBlH99S3iFq+d KY8hCClnHAvdlddwehrf3fKZQIKW8FeYi8Hv6e+/YR5Us54DwPI+rkTu9upeFhVKKf 7oCUOW/o3kNQvOVZ7nuheHbiRPl8TF2cFmIAFgcJWx64Qqt5CA3A1kKdr2mckKNr/O 86cQVURMmshOUeP3zln4GBrrR2Fh8sTu/A+re9WWBTPBjfjlY81XAiEo1BrCxIHCvN 0h5EMxrqybW+w== From: Heinrich Schuchardt To: Peter Maydell Subject: [PATCH] hw/arm/virt: impact of gic-version on max CPUs Date: Thu, 14 Apr 2022 01:14:56 +0200 Message-Id: <20220413231456.35811-1-heinrich.schuchardt@canonical.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=185.125.188.121; envelope-from=heinrich.schuchardt@canonical.com; helo=smtp-relay-canonical-1.canonical.com X-Spam_score_int: -44 X-Spam_score: -4.5 X-Spam_bar: ---- X-Spam_report: (-4.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org, Heinrich Schuchardt Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Describe that the gic-version influences the maximum number of CPUs. Signed-off-by: Heinrich Schuchardt --- docs/system/arm/virt.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/system/arm/virt.rst b/docs/system/arm/virt.rst index 1544632b67..1af3f6a0a8 100644 --- a/docs/system/arm/virt.rst +++ b/docs/system/arm/virt.rst @@ -96,9 +96,9 @@ gic-version Valid values are: ``2`` - GICv2 + GICv2 - This limits the number of CPUs to 8. ``3`` - GICv3 + GICv3 - This allows up to 512 CPUs. ``host`` Use the same GIC version the host provides, when using KVM ``max``