From patchwork Wed Dec 18 21:55:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Christopherson X-Patchwork-Id: 11302283 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 C9DB214B7 for ; Wed, 18 Dec 2019 22:03:46 +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 A72A12146E for ; Wed, 18 Dec 2019 22:03:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="KO7xJttF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A72A12146E 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=5yZyiIaHwyhEDhHwtbgzrS0uFx2ibQCysDGiOH+UEjg=; b=KO7xJttFUYxMNh wFLwMELejzmKxDyD5oYvRZFbybjQEmRzJIv18CW+rDEWjUfefdzU2LT/0gsSNQ/8jZrLmIms8L/UV 8DfSdKVZRX3sNBHvKfNuiRZ2mePbXvw94kho3J9y1/2pYdyh/tqbzo3/j23cEeM9vPOx+zDpcRFbn f2vD1brhT9YUDlaLLo/USqf1BvH65/LhoF6o1eZE6JECvde71FIjtDaPURRQsirFsrQsMu8Re7wME 8l5Zs4a6Blk+81kx3kHDVNLOlRfiQcjSRnZqDXaABgmJzE5n1rmegtcx/xzP/MphqIDgTPA5xHCRz bsl0siONugmSn2ZVnqHg==; 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 1ihhQ1-0004yD-Mv; Wed, 18 Dec 2019 22:03:45 +0000 Received: from mga01.intel.com ([192.55.52.88]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ihhIP-0005BK-Ab for linux-arm-kernel@lists.infradead.org; Wed, 18 Dec 2019 21:55:56 +0000 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Dec 2019 13:55:51 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,330,1571727600"; d="scan'208";a="222108175" Received: from sjchrist-coffee.jf.intel.com ([10.54.74.202]) by fmsmga001.fm.intel.com with ESMTP; 18 Dec 2019 13:55:50 -0800 From: Sean Christopherson To: Marc Zyngier , James Hogan , Paul Mackerras , Christian Borntraeger , Janosch Frank , Paolo Bonzini Subject: [PATCH v2 40/45] KVM: ARM: Move all vcpu init code into kvm_arch_vcpu_create() Date: Wed, 18 Dec 2019 13:55:25 -0800 Message-Id: <20191218215530.2280-41-sean.j.christopherson@intel.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191218215530.2280-1-sean.j.christopherson@intel.com> References: <20191218215530.2280-1-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-20191218_135553_474625_450BE049 X-CRM114-Status: GOOD ( 13.08 ) X-Spam-Score: -5.0 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [192.55.52.88 listed in list.dnswl.org] 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [192.55.52.88 listed in wl.mailspike.net] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders 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: kvm-ppc@vger.kernel.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, Greg Kurz , James Morse , linux-arm-kernel@lists.infradead.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 Fold init() into create() now that the two are called back-to-back by common KVM code (kvm_vcpu_init() calls kvm_arch_vcpu_init() as its last action, and kvm_vm_ioctl_create_vcpu() calls kvm_arch_vcpu_create() immediately thereafter). This paves the way for removing kvm_arch_vcpu_{un}init() entirely. Note, there is no associated unwinding in kvm_arch_vcpu_uninit() that needs to be relocated (to kvm_arch_vcpu_destroy()). No functional change intended. Signed-off-by: Sean Christopherson --- virt/kvm/arm/arm.c | 34 ++++++++++++++++++++-------------- 1 file changed, 20 insertions(+), 14 deletions(-) diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index 35eab584fb57..1d87c194a6d3 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -292,6 +292,25 @@ int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id) int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu) { + int err; + + /* Force users to call KVM_ARM_VCPU_INIT */ + vcpu->arch.target = -1; + bitmap_zero(vcpu->arch.features, KVM_VCPU_MAX_FEATURES); + + /* Set up the timer */ + kvm_timer_vcpu_init(vcpu); + + kvm_pmu_vcpu_init(vcpu); + + kvm_arm_reset_debug_ptr(vcpu); + + kvm_arm_pvtime_vcpu_init(&vcpu->arch); + + err = kvm_vgic_vcpu_init(vcpu); + if (err) + return err; + return create_hyp_mappings(vcpu, vcpu + 1, PAGE_HYP); } @@ -341,20 +360,7 @@ void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) { - /* Force users to call KVM_ARM_VCPU_INIT */ - vcpu->arch.target = -1; - bitmap_zero(vcpu->arch.features, KVM_VCPU_MAX_FEATURES); - - /* Set up the timer */ - kvm_timer_vcpu_init(vcpu); - - kvm_pmu_vcpu_init(vcpu); - - kvm_arm_reset_debug_ptr(vcpu); - - kvm_arm_pvtime_vcpu_init(&vcpu->arch); - - return kvm_vgic_vcpu_init(vcpu); + return 0; } void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)