From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 10631C43468 for ; Mon, 21 Sep 2020 16:47:33 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 477B520874 for ; Mon, 21 Sep 2020 16:47:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="SWjERXJF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 477B520874 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4Bw9My6KPDzDqVT for ; Tue, 22 Sep 2020 02:47:26 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=infradead.org (client-ip=2001:8b0:10b:1231::1; helo=merlin.infradead.org; envelope-from=rdunlap@infradead.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=merlin.20170209 header.b=SWjERXJF; dkim-atps=neutral Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) (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 lists.ozlabs.org (Postfix) with ESMTPS id 4Bw8HH53hkzDqnv for ; Tue, 22 Sep 2020 01:58:19 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:Subject:Sender :Reply-To:Content-ID:Content-Description; bh=Br0UNVJe+Ev8cjKbRyN9LsJUKEZ9LG0bn+D8b/Qg9zo=; b=SWjERXJFhFEJH0lY46f34q+9oU vq74TEbEiWNWWoKzmvHh1PqERulc8ABD/2ghgG5DwgGiRNfujzlKgQIkT15zQ5UzbS6TJh+8GbjQ5 svc1PjoRSCHzX9SFxCaWnocjW2KiQZx9QqLumxVQdo09x7GfDB5QPMWvKbyeImqK4XQnoMHH8wwpT 5qpgL6zAox9JUXP08NvZdJpLq+66Cujskyow5xM/ulsfZk81wyg6mz/TN+RxVVj8OK3RdmqLiRHM5 DYJrSLJPU2imFQoqwV/W/Ep8N8afm+rV4uGQ1FBog/WDTNhKpelzDF1WvAacqp38cRb5RZ4T3VTH/ iwwhQk+w==; Received: from [2601:1c0:6280:3f0:897c:6038:c71d:ecac] by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kKOCb-00074H-0l; Mon, 21 Sep 2020 15:58:05 +0000 Subject: Re: [PATCH V2] Doc: admin-guide: Add entry for kvm_cma_resv_ratio kernel param To: sathnaga@linux.vnet.ibm.com, linux-doc@vger.kernel.org References: <20200921090220.14981-1-sathnaga@linux.vnet.ibm.com> From: Randy Dunlap Message-ID: <82d06ba5-592c-1f19-aaae-a1f7b4041c7f@infradead.org> Date: Mon, 21 Sep 2020 08:58:00 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <20200921090220.14981-1-sathnaga@linux.vnet.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jonathan Corbet , linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org, Paul Mackerras , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 9/21/20 2:02 AM, sathnaga@linux.vnet.ibm.com wrote: > From: Satheesh Rajendran > > Add document entry for kvm_cma_resv_ratio kernel param which > is used to alter the KVM contiguous memory allocation percentage > for hash pagetable allocation used by hash mode PowerPC KVM guests. > > Cc: linux-kernel@vger.kernel.org > Cc: kvm-ppc@vger.kernel.org > Cc: linuxppc-dev@lists.ozlabs.org > Cc: Paul Mackerras > Cc: Michael Ellerman > Cc: Jonathan Corbet > Reviewed-by: Randy Dunlap > Signed-off-by: Satheesh Rajendran Hi, > --- > > V2: > Addressed review comments from Randy. > > V1: https://lkml.org/lkml/2020/9/16/72 In reply to V1, I didn't add a Reviewed-by: tag, but I can now. Reviewed-by: Randy Dunlap > --- > Documentation/admin-guide/kernel-parameters.txt | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index a1068742a6df..932ed45740c9 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -2258,6 +2258,14 @@ > [KVM,ARM] Allow use of GICv4 for direct injection of > LPIs. > > + kvm_cma_resv_ratio=n [PPC] > + Reserves given percentage from system memory area for > + contiguous memory allocation for KVM hash pagetable > + allocation. > + By default it reserves 5% of total system memory. > + Format: > + Default: 5 > + > kvm-intel.ept= [KVM,Intel] Disable extended page tables > (virtualized MMU) support on capable Intel chips. > Default is 1 (enabled) > thanks. -- ~Randy