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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=YmodmkTsBwgjAcYBTA/2g/KRPj3VUQlDsQzHgmQtgfM=; b=LT08+1Lg26+TdN S2ScjiWNDxnYKmAPGSW4bVygDIxAJkhV9TimIQK+V633lY/Cc6bHjV7KO4bi8nSODSmgAb0FzdqJv CvfEqw8QjxLjLTDaed1Z9FBSO3/I+Rh4BHsG6L9WEF2gf6x5Nbi2TjJJ1+Sr3lPn+pZJUJfeSjad0 n6h0sIl4mcB6t/NVZX9WmyMlbHnL3uo8wCghvHRLvXvNggQGA4WAn2KuHrAG1tQqJCFkvSUfcAKWS qqy9dYPnYR0bG77kIIA/ojltS5UtCjNtiS8Nxmuqr9T5MNonMrgwjyYHtIM8apHJzON6u/bGao/io UTzyl2aO9F/tGp5aVF4w==; 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 1ihhKI-0006nM-Vo; Wed, 18 Dec 2019 21:57:51 +0000 Received: from mga11.intel.com ([192.55.52.93]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ihhID-0004ya-5e for linux-arm-kernel@lists.infradead.org; Wed, 18 Dec 2019 21:55:42 +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 fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Dec 2019 13:55:34 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,330,1571727600"; d="scan'208";a="222108030" Received: from sjchrist-coffee.jf.intel.com ([10.54.74.202]) by fmsmga001.fm.intel.com with ESMTP; 18 Dec 2019 13:55:34 -0800 From: Sean Christopherson To: Marc Zyngier , James Hogan , Paul Mackerras , Christian Borntraeger , Janosch Frank , Paolo Bonzini Subject: [PATCH v2 06/45] KVM: SVM: Use direct vcpu pointer during vCPU create/free Date: Wed, 18 Dec 2019 13:54:51 -0800 Message-Id: <20191218215530.2280-7-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_135541_246697_62A33233 X-CRM114-Status: GOOD ( 12.38 ) 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 [192.55.52.93 listed in list.dnswl.org] -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [192.55.52.93 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 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 Capture the vcpu pointer in a local varaible and replace '&svm->vcpu' references with a direct reference to the pointer in anticipation of moving bits of the code to common x86 and passing the vcpu pointer into svm_create_vcpu(), i.e. eliminate unnecessary noise from future patches. Signed-off-by: Sean Christopherson --- arch/x86/kvm/svm.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 8f1b715dfde8..1afa10cf365f 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2146,6 +2146,7 @@ static int avic_init_vcpu(struct vcpu_svm *svm) static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id) { + struct kvm_vcpu *vcpu; struct vcpu_svm *svm; struct page *page; struct page *msrpm_pages; @@ -2161,24 +2162,25 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id) err = -ENOMEM; goto out; } + vcpu = &svm->vcpu; - svm->vcpu.arch.user_fpu = kmem_cache_zalloc(x86_fpu_cache, - GFP_KERNEL_ACCOUNT); - if (!svm->vcpu.arch.user_fpu) { + vcpu->arch.user_fpu = kmem_cache_zalloc(x86_fpu_cache, + GFP_KERNEL_ACCOUNT); + if (!vcpu->arch.user_fpu) { printk(KERN_ERR "kvm: failed to allocate kvm userspace's fpu\n"); err = -ENOMEM; goto free_partial_svm; } - svm->vcpu.arch.guest_fpu = kmem_cache_zalloc(x86_fpu_cache, - GFP_KERNEL_ACCOUNT); - if (!svm->vcpu.arch.guest_fpu) { + vcpu->arch.guest_fpu = kmem_cache_zalloc(x86_fpu_cache, + GFP_KERNEL_ACCOUNT); + if (!vcpu->arch.guest_fpu) { printk(KERN_ERR "kvm: failed to allocate vcpu's fpu\n"); err = -ENOMEM; goto free_user_fpu; } - err = kvm_vcpu_init(&svm->vcpu, kvm, id); + err = kvm_vcpu_init(vcpu, kvm, id); if (err) goto free_svm; @@ -2222,9 +2224,9 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id) svm->asid_generation = 0; init_vmcb(svm); - svm_init_osvw(&svm->vcpu); + svm_init_osvw(vcpu); - return &svm->vcpu; + return vcpu; free_page4: __free_page(hsave_page); @@ -2235,11 +2237,11 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id) free_page1: __free_page(page); uninit: - kvm_vcpu_uninit(&svm->vcpu); + kvm_vcpu_uninit(vcpu); free_svm: - kmem_cache_free(x86_fpu_cache, svm->vcpu.arch.guest_fpu); + kmem_cache_free(x86_fpu_cache, vcpu->arch.guest_fpu); free_user_fpu: - kmem_cache_free(x86_fpu_cache, svm->vcpu.arch.user_fpu); + kmem_cache_free(x86_fpu_cache, vcpu->arch.user_fpu); free_partial_svm: kmem_cache_free(kvm_vcpu_cache, svm); out: @@ -2270,8 +2272,8 @@ static void svm_free_vcpu(struct kvm_vcpu *vcpu) __free_page(virt_to_page(svm->nested.hsave)); __free_pages(virt_to_page(svm->nested.msrpm), MSRPM_ALLOC_ORDER); kvm_vcpu_uninit(vcpu); - kmem_cache_free(x86_fpu_cache, svm->vcpu.arch.user_fpu); - kmem_cache_free(x86_fpu_cache, svm->vcpu.arch.guest_fpu); + kmem_cache_free(x86_fpu_cache, vcpu->arch.user_fpu); + kmem_cache_free(x86_fpu_cache, vcpu->arch.guest_fpu); kmem_cache_free(kvm_vcpu_cache, svm); }