lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Thu, 06 Aug 2020 19:46:28 -0500
From:   Babu Moger <>
Subject: [PATCH v4 01/12] KVM: SVM: Introduce vmcb_set_intercept,
 vmcb_clr_intercept and vmcb_is_intercept

This is in preparation for the future intercept vector additions.

Add new functions vmcb_set_intercept, vmcb_clr_intercept and vmcb_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..9f3c4ce2498d 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 vmcb_set_intercept(struct vmcb_control_area *control, int bit)
+	__set_bit(bit, (unsigned long *)&control->intercept_cr);
+static inline void vmcb_clr_intercept(struct vmcb_control_area *control, int bit)
+	__clear_bit(bit, (unsigned long *)&control->intercept_cr);
+static inline bool vmcb_is_intercept(struct vmcb_control_area *control, int bit)
+	return test_bit(bit, (unsigned long *)&control->intercept_cr);
 static inline void set_cr_intercept(struct vcpu_svm *svm, int bit)
 	struct vmcb *vmcb = get_host_vmcb(svm);

Powered by blists - more mailing lists