search for: bp_vector

..._vcpu *vcpu, struct desc_ptr *dt); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index b6081afec926..554ad7c57a0f 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -7256,6 +7256,13 @@ static inline bool svm_bp_intercepted(struct kvm_vcpu *vcpu) return get_exception_intercept(svm, BP_VECTOR); } +static inline bool svm_cr3_write_intercepted(struct kvm_vcpu *vcpu) +{ + struct vcpu_svm *svm = to_svm(vcpu); + + return is_cr_intercept(svm, INTERCEPT_CR3_WRITE); +} + static void svm_control_cr3_intercept(struct kvm_vcpu *vcpu, int type, bool enable) { @@ -7311,6 +7318,7 @@ s...

...13 @@ static bool svm_apic_init_signal_blocked(struct kvm_vcpu *vcpu) (svm->vmcb->control.intercept & (1ULL << INTERCEPT_INIT)); } +static inline bool svm_bp_intercepted(struct kvm_vcpu *vcpu) +{ + struct vcpu_svm *svm = to_svm(vcpu); + + return get_exception_intercept(svm, BP_VECTOR); +} + static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .cpu_has_kvm_support = has_svm, .disabled_by_bios = is_disabled, @@ -7268,6 +7282,7 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .vcpu_blocking = svm_vcpu_blocking, .vcpu_unblocking = svm_vcpu_unblocking, +...

..._vcpu *vcpu, struct desc_ptr *dt); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index df34ab0da4ff..b6081afec926 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -7256,6 +7256,19 @@ static inline bool svm_bp_intercepted(struct kvm_vcpu *vcpu) return get_exception_intercept(svm, BP_VECTOR); } +static void svm_control_cr3_intercept(struct kvm_vcpu *vcpu, int type, + bool enable) +{ + struct vcpu_svm *svm = to_svm(vcpu); + + if (type & CR_TYPE_R) + enable ? set_cr_intercept(svm, INTERCEPT_CR3_READ) : + clr_cr_intercept(svm, INTERCEPT_CR3_READ); + if (type & CR_...

...arch_vcpui->restore_interception = true; } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b4a7805ce9e4..a3afbbb7199f 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -8993,6 +8993,11 @@ int kvm_arch_vcpu_set_guest_debug(struct kvm_vcpu *vcpu, kvm_queue_exception(vcpu, BP_VECTOR); } + if (kvmi_monitor_bp_intercept(vcpu, dbg->control)) { + r = -EBUSY; + goto out; + } + /* * Read rflags as long as potentially injected trace flags are still * filtered out. diff --git a/virt/kvm/introspection/kvmi.c b/virt/kvm/introspection/kvmi.c index 19ea94dc0e1d..f369856f9...

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

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

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (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

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (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