From patchwork Thu Oct 22 07:42:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SsO8cmdlbiBHcm/Dnw==?= X-Patchwork-Id: 11850423 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D67B61580 for ; Thu, 22 Oct 2020 07:43:48 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9BDBD21707 for ; Thu, 22 Oct 2020 07:43:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="vFm0Sayt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9BDBD21707 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.10200.27058 (Exim 4.92) (envelope-from ) id 1kVVF4-0006SH-6N; Thu, 22 Oct 2020 07:42:34 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 10200.27058; Thu, 22 Oct 2020 07:42:34 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kVVF4-0006S8-2F; Thu, 22 Oct 2020 07:42:34 +0000 Received: by outflank-mailman (input) for mailman id 10200; Thu, 22 Oct 2020 07:42:32 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kVVF2-0006JQ-9x for xen-devel@lists.xenproject.org; Thu, 22 Oct 2020 07:42:32 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id e4234f1f-a4f2-4fce-823b-87302055cb70; Thu, 22 Oct 2020 07:42:27 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 60548B1A6; Thu, 22 Oct 2020 07:42:26 +0000 (UTC) Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kVVF2-0006JQ-9x for xen-devel@lists.xenproject.org; Thu, 22 Oct 2020 07:42:32 +0000 X-Inumbo-ID: e4234f1f-a4f2-4fce-823b-87302055cb70 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id e4234f1f-a4f2-4fce-823b-87302055cb70; Thu, 22 Oct 2020 07:42:27 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1603352546; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nHAk3DX3D0x2mTNVKivpF51Q9ju8eawUFMYlwMlLqII=; b=vFm0SaytDZT7HUOYCTHQFDI2uCpz4rcWn77wHy8dww39cSM0pDpTkPn9YL7t2Ax4aJ+HEd CKnHFM48SdWPOubGznfdTt+CRYTHR3c+F8RNasbOnBpcyAA1OELv3r1MrFsuGFUS0dqV6z 1EeT51axrFMSZOTmfRvoS8dRL0W18j8= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 60548B1A6; Thu, 22 Oct 2020 07:42:26 +0000 (UTC) From: Juergen Gross To: xen-devel@lists.xenproject.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Juergen Gross , Jonathan Corbet Subject: [PATCH 5/5] Documentation: add xen.fifo_events kernel parameter description Date: Thu, 22 Oct 2020 09:42:14 +0200 Message-Id: <20201022074214.21693-6-jgross@suse.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201022074214.21693-1-jgross@suse.com> References: <20201022074214.21693-1-jgross@suse.com> MIME-Version: 1.0 The kernel boot parameter xen.fifo_events isn't listed in Documentation/admin-guide/kernel-parameters.txt. Add it. Signed-off-by: Juergen Gross --- Documentation/admin-guide/kernel-parameters.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 02d4adbf98d2..526d65d8573a 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -5978,6 +5978,13 @@ After which time (jiffies) the event handling loop should start to delay EOI handling. Default is 2. + xen.fifo_events= [XEN] + Boolean parameter to disable using fifo event handling + even if available. Normally fifo event handling is + preferred over the 2-level event handling, as it is + fairer and the number of possible event channels is + much higher. Default is on (use fifo events). + nopv= [X86,XEN,KVM,HYPER_V,VMWARE] Disables the PV optimizations forcing the guest to run as generic guest with no PV drivers. Currently support