Displaying 4 results from an estimated 4 matches for "svm_control_desc_intercept".
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kvmi_control_desc_intercept
2020 Jul 21
0
[PATCH v9 15/84] KVM: x86: add .desc_intercepted()
...truct kvm_vcpu *vcpu, unsigned long value);
void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg);
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index c70c14461483..cc55c571fe86 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1553,6 +1553,20 @@ static void svm_control_desc_intercept(struct kvm_vcpu *vcpu, bool enable)
}
}
+static inline bool svm_desc_intercepted(struct kvm_vcpu *vcpu)
+{
+ struct vcpu_svm *svm = to_svm(vcpu);
+
+ return (get_intercept(svm, INTERCEPT_STORE_IDTR) ||
+ get_intercept(svm, INTERCEPT_STORE_GDTR) ||
+ get_intercept(svm, INTERCEPT_STORE_LDTR) |...
2020 Jul 21
0
[PATCH v9 74/84] KVM: introspection: restore the state of descriptor-table register interception on unhook
...t()
+ * - kvmi_monitor_desc_intercept()
*/
smp_wmb();
WRITE_ONCE(vcpu->arch.kvmi, arch_vcpui);
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index a0b91007e484..20f6905b45aa 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1555,6 +1555,9 @@ static void svm_control_desc_intercept(struct kvm_vcpu *vcpu, bool enable)
{
struct vcpu_svm *svm = to_svm(vcpu);
+ if (kvmi_monitor_desc_intercept(vcpu, enable))
+ return;
+
if (enable) {
set_intercept(svm, INTERCEPT_STORE_IDTR);
set_intercept(svm, INTERCEPT_STORE_GDTR);
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/...
2020 Feb 07
78
[RFC PATCH v7 00/78] VM introspection
The KVM introspection subsystem provides a facility for applications
running on the host or in a separate VM, to control the execution of
other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs,
MSRs etc.), alter the page access bits in the shadow page tables (only
for the hardware backed ones, eg. Intel's EPT) and receive notifications
when events of interest have taken place
2020 Jul 21
87
[PATCH v9 00/84] VM introspection
The KVM introspection subsystem provides a facility for applications
running on the host or in a separate VM, to control the execution of
other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs,
MSRs etc.), alter the page access bits in the shadow page tables (only
for the hardware backed ones, eg. Intel's EPT) and receive notifications
when events of interest have taken place