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Tue, 28 Jul 2020 23:37:55 +0000 Subject: [PATCH v3 01/11] KVM: SVM: Introduce __set_intercept, __clr_intercept and __is_intercept From: Babu Moger To: pbonzini@redhat.com, vkuznets@redhat.com, wanpengli@tencent.com, sean.j.christopherson@intel.com, jmattson@google.com Cc: kvm@vger.kernel.org, joro@8bytes.org, x86@kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, tglx@linutronix.de Date: Tue, 28 Jul 2020 18:37:53 -0500 Message-ID: <159597947370.12744.8741858978174141331.stgit@bmoger-ubuntu> In-Reply-To: <159597929496.12744.14654593948763926416.stgit@bmoger-ubuntu> References: <159597929496.12744.14654593948763926416.stgit@bmoger-ubuntu> User-Agent: StGit/0.17.1-dirty Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SN4PR0701CA0029.namprd07.prod.outlook.com (2603:10b6:803:2d::14) To SN1PR12MB2560.namprd12.prod.outlook.com (2603:10b6:802:26::19) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [127.0.1.1] (165.204.77.1) by SN4PR0701CA0029.namprd07.prod.outlook.com (2603:10b6:803:2d::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3216.23 via Frontend Transport; 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Add new functions __set_intercept, __clr_intercept and __is_intercept using kernel APIs __set_bit, __clear_bit and test_bit espectively. Signed-off-by: Babu Moger --- arch/x86/kvm/svm/svm.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index 6ac4c00a5d82..3b669718190a 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -217,6 +217,21 @@ static inline struct vmcb *get_host_vmcb(struct vcpu_svm *svm) return svm->vmcb; } +static inline void __set_intercept(void *addr, int bit) +{ + __set_bit(bit, (unsigned long *)addr); +} + +static inline void __clr_intercept(void *addr, int bit) +{ + __clear_bit(bit, (unsigned long *)addr); +} + +static inline bool __is_intercept(void *addr, int bit) +{ + return test_bit(bit, (unsigned long *)addr); +} + static inline void set_cr_intercept(struct vcpu_svm *svm, int bit) { struct vmcb *vmcb = get_host_vmcb(svm);