From patchwork Tue Aug 18 13:28:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 11720871 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 797BD1392 for ; Tue, 18 Aug 2020 13:32:42 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 5177F20738 for ; Tue, 18 Aug 2020 13:32:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="exUgpQfu"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="iIEjo+Xg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5177F20738 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org 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=merlin.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=msAixrsCaIw2dayZMnjqH1PhO5K+30RyEHLr6Hu4wlk=; b=exUgpQfuOUPxRW6mtSgC8AMsH s/PkOROKk5RW7wt7NJdsATz5fapIQ+RYJM92rpDRUY5Rtm+Zln6lAKWHjpzgDRWulK/UHG3pA2ZjH ixb6ZIY3WSXKaKHIOKX1HO7B5A4NNK5BC7C8GNPr8ypVp5+G0edek6iekqDxyNp7ZXGystwl4WQzZ 1215DnYOwX7X0YRQDecx2Ho9IUgMOVFRp1u6YvMdYyfboH06Uw1Jg9S3DK5wIvSjwp08HPMOOHrNH BBdbLtaZfi+DrXCtIXY71ZCw0Okk5kLsdmPmwiNP0rZEpkmhEguzDTSTPk+37S40Ct/ZOK6qA7Ay6 370SkWlVQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k81j0-00012N-7m; Tue, 18 Aug 2020 13:32:26 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k81ft-0007uN-9u for linux-arm-kernel@lists.infradead.org; Tue, 18 Aug 2020 13:29:17 +0000 Received: from localhost.localdomain (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DDB442076D; Tue, 18 Aug 2020 13:29:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597757351; bh=HopFbFYHG1YT75SbCNbbNW2pZf3VFd2pPI3BoVEblB0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iIEjo+Xg9J/XXyaqV7qRyxAflBtZS4P7aMXcrlr5TOG9GOAw50cSNmjMcrv2KoKwx zqrxv4JELf1sTtaOS7CRl6CR2zR9pk8QoIqFmqU6zrUZZybg1E8zjGWufZsUBkDyn1 Gcz/kebI9eXQcH3sNSFrliB4N8Ckk76pzQ8nQ7qA= From: Will Deacon To: kvmarm@lists.cs.columbia.edu Subject: [PATCH v2 21/22] KVM: arm64: Remove unused 'pgd' field from 'struct kvm_s2_mmu' Date: Tue, 18 Aug 2020 14:28:17 +0100 Message-Id: <20200818132818.16065-22-will@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200818132818.16065-1-will@kernel.org> References: <20200818132818.16065-1-will@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200818_092913_518200_92270A55 X-CRM114-Status: GOOD ( 13.21 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender 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: kernel-team@android.com, Suzuki Poulose , Marc Zyngier , Quentin Perret , James Morse , Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The stage-2 page-tables are entirely encapsulated by the 'pgt' field of 'struct kvm_s2_mmu', so remove the unused 'pgd' field. Cc: Marc Zyngier Cc: Quentin Perret Signed-off-by: Will Deacon --- arch/arm64/include/asm/kvm_host.h | 1 - arch/arm64/kvm/mmu.c | 2 -- 2 files changed, 3 deletions(-) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 0b7c702b2151..41caf29bd93c 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -79,7 +79,6 @@ struct kvm_s2_mmu { * for vEL1/EL0 with vHCR_EL2.VM == 0. In that case, we use the * canonical stage-2 page tables. */ - pgd_t *pgd; phys_addr_t pgd_phys; struct kvm_pgtable *pgt; diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c index 8e64fecfb2f0..19f05fecea41 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -384,7 +384,6 @@ int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu) mmu->kvm = kvm; mmu->pgt = pgt; mmu->pgd_phys = __pa(pgt->pgd); - mmu->pgd = (void *)pgt->pgd; mmu->vmid.vmid_gen = 0; return 0; @@ -470,7 +469,6 @@ void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu) spin_lock(&kvm->mmu_lock); pgt = mmu->pgt; if (pgt) { - mmu->pgd = NULL; mmu->pgd_phys = 0; mmu->pgt = NULL; free_percpu(mmu->last_vcpu_ran);