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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 5285DEB64DD for ; Fri, 21 Jul 2023 15:08:23 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=fu8DkLeC; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4R6tGs4cXdz3cWN for ; Sat, 22 Jul 2023 01:08:21 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=fu8DkLeC; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=intel.com (client-ip=134.134.136.31; helo=mga06.intel.com; envelope-from=xiaoyao.li@intel.com; receiver=lists.ozlabs.org) X-Greylist: delayed 63 seconds by postgrey-1.37 at boromir; Sat, 22 Jul 2023 01:07:25 AEST Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4R6tFn2f3Gz3bwF for ; Sat, 22 Jul 2023 01:07:25 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1689952045; x=1721488045; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=m75I2ERfRQTCcOTwNioBlzNNFor8J6AUk5uhhkX1LBE=; b=fu8DkLeCxQBTxVSTbIBBf5bCSZ5YK73RjKzCa5EPWrF0aR9K/TWJwvZV tEEn9FhpzGig8SBGlA88Ac7TJFgX1gBqWyHevbp03oF1FuMVkeh6ew5/i XoQjtRBAQnuc8FGiAYebxuBqH3UmwNGqmckvlp74hIjwJB5V6i6XEOA94 HE381JfwMgYKzr8u7/J3dzQ/Z1iOHrjcD12OtajqzZwsVoo5K99i5CWAF WgnAqkB5kxW+24CJiJ0icphlS2gwvXVAi4BO71bKGRztHNrXSYMrCEIPD fDe2/2Y0G7KOfigMz/w+e7FZsfu1iIVLprWJ/4zg4qT3TQMxLwbCk/D5N A==; X-IronPort-AV: E=McAfee;i="6600,9927,10778"; a="430835120" X-IronPort-AV: E=Sophos;i="6.01,220,1684825200"; d="scan'208";a="430835120" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jul 2023 08:06:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10778"; a="790229682" X-IronPort-AV: E=Sophos;i="6.01,222,1684825200"; d="scan'208";a="790229682" Received: from xiaoyaol-hp-g830.ccr.corp.intel.com (HELO [10.93.6.77]) ([10.93.6.77]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jul 2023 08:05:57 -0700 Message-ID: Date: Fri, 21 Jul 2023 23:05:53 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0 Thunderbird/102.13.0 Subject: Re: [RFC PATCH v11 12/29] KVM: Add KVM_CREATE_GUEST_MEMFD ioctl() for guest-specific backing memory Content-Language: en-US To: Sean Christopherson , Paolo Bonzini , Marc Zyngier , Oliver Upton , Huacai Chen , Michael Ellerman , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , "Matthew Wilcox (Oracle)" , Andrew Morton , Paul Moore , James Morris , "Serge E. Hallyn" References: <20230718234512.1690985-1-seanjc@google.com> <20230718234512.1690985-13-seanjc@google.com> From: Xiaoyao Li In-Reply-To: <20230718234512.1690985-13-seanjc@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed 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: kvm@vger.kernel.org, David Hildenbrand , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Chao Peng , linux-riscv@lists.infradead.org, Isaku Yamahata , linux-security-module@vger.kernel.org, Wang , Fuad Tabba , Maciej Szmigiero , Michael Roth , Ackerley Tng , kvmarm@lists.linux.dev, Vlastimil Babka , linux-arm-kernel@lists.infradead.org, Quentin Perret , linux-mips@vger.kernel.org, Jarkko Sakkinen , Yu Zhang , kvm-riscv@lists.infradead.org, linux-fsdevel@vger.kernel.org, Liam Merwick , Vishal Annapurve , linuxppc-dev@lists.ozlabs.org, "Kirill A . Shutemov" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 7/19/2023 7:44 AM, Sean Christopherson wrote: > @@ -6255,12 +6298,17 @@ int kvm_init(unsigned vcpu_size, unsigned vcpu_align, struct module *module) > if (r) > goto err_async_pf; > > + r = kvm_gmem_init(); > + if (r) > + goto err_gmem; > + > kvm_chardev_ops.owner = module; > > kvm_preempt_ops.sched_in = kvm_sched_in; > kvm_preempt_ops.sched_out = kvm_sched_out; > > kvm_init_debug(); > + kvm_gmem_init(); why kvm_gmem_init() needs to be called again? by mistake?