From patchwork Tue Oct 22 00:35:26 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Christopherson X-Patchwork-Id: 11203293 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 83BF21895 for ; Tue, 22 Oct 2019 00:36:37 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 5FA38222D1 for ; Tue, 22 Oct 2019 00:36:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="PgKCzWOG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5FA38222D1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=PTxkO3DPYPsdH4CPVhB0OpONVq/5hm9EWeyoOPqtAAk=; b=PgKCzWOGdsINuw SWdK4yieODrw3P166vIbD9sMUGjjWXE4BAomjhVp5Ej1ULJwXa35yzEdJadcTBli8dBo76ac3MZsd IIclWLVrTi65INk3hAmWqkoXhrI0JoSvsh71hAWXS7Wxuun/TkNkT1+ne6iF6MWx71P+YKTCa4Ggq wFMQ64ranwHhvWYC0S7waeKjeggWNLY9tJp6/C76iZI6B7sX60vMI9Ju6jV+EqYVeWXKGRZK6K0L3 m3Jxkf6PVTx++yUiyAOOUdv6rwpMd8hteEsVXDqim6YVn76/RmoqudxlLCu6Zou9y5lMjuwdk05nc gBPfldqS/H+UihRmsDpA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iMiA9-00088N-0a; Tue, 22 Oct 2019 00:36:37 +0000 Received: from mga05.intel.com ([192.55.52.43]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iMi9G-0007Ji-Fo for linux-arm-kernel@lists.infradead.org; Tue, 22 Oct 2019 00:35:43 +0000 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Oct 2019 17:35:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,325,1566889200"; d="scan'208";a="348897207" Received: from sjchrist-coffee.jf.intel.com ([10.54.74.41]) by orsmga004.jf.intel.com with ESMTP; 21 Oct 2019 17:35:39 -0700 From: Sean Christopherson To: James Hogan , Paul Mackerras , Christian Borntraeger , Janosch Frank , Paolo Bonzini , =?utf-8?b?UmFkaW0gS3LEjW3DocWZ?= , Marc Zyngier Subject: [PATCH v2 04/15] KVM: x86: Allocate memslot resources during prepare_memory_region() Date: Mon, 21 Oct 2019 17:35:26 -0700 Message-Id: <20191022003537.13013-5-sean.j.christopherson@intel.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20191022003537.13013-1-sean.j.christopherson@intel.com> References: <20191022003537.13013-1-sean.j.christopherson@intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191021_173542_559945_22B8D525 X-CRM114-Status: GOOD ( 10.57 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [192.55.52.43 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, Wanpeng Li , kvm@vger.kernel.org, David Hildenbrand , Joerg Roedel , Cornelia Huck , linux-mips@vger.kernel.org, Sean Christopherson , linux-kernel@vger.kernel.org, James Morse , kvm-ppc@vger.kernel.org, Vitaly Kuznetsov , Suzuki K Poulose , kvmarm@lists.cs.columbia.edu, Julien Thierry , Jim Mattson Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Allocate the various metadata structures associated with a memslot during during kvm_arch_prepare_memory_region(), which paves the way for removing kvm_arch_create_memslot() altogether. Moving x86's memory allocation only changes the order of kernel memory allocations between x86 and common KVM code. No functional change intended. Signed-off-by: Sean Christopherson --- arch/x86/kvm/x86.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index f26f8be4e621..fa80f07ba501 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -9601,6 +9601,12 @@ void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free, int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot, unsigned long npages) +{ + return 0; +} + +static int kvm_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot, + unsigned long npages) { int i; @@ -9678,6 +9684,9 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, const struct kvm_userspace_memory_region *mem, enum kvm_mr_change change) { + if (change == KVM_MR_CREATE) + return kvm_create_memslot(kvm, memslot, + mem->memory_size >> PAGE_SHIFT); return 0; }