search for: direct_access_msrs

...e, &tmp); } -static void set_msr_interception(u32 *msrpm, unsigned msr, +static void set_msr_interception(struct kvm_vcpu *vcpu, + u32 *msrpm, unsigned msr, int type, bool value) { u8 bit_read, bit_write; @@ -1116,7 +1117,7 @@ static void svm_vcpu_init_msrpm(u32 *msrpm) if (!direct_access_msrs[i].always) continue; - set_msr_interception(msrpm, direct_access_msrs[i].index, + set_msr_interception(NULL, msrpm, direct_access_msrs[i].index, MSR_TYPE_RW, 1); } } @@ -1169,13 +1170,13 @@ static void svm_enable_lbrv(struct vcpu_svm *svm) u32 *msrpm = svm->msrpm; svm-...

...type & MSR_TYPE_R) + value ? clear_bit(bit_read, &tmp) : set_bit(bit_read, &tmp); + if (type & MSR_TYPE_W) + value ? clear_bit(bit_write, &tmp) : set_bit(bit_write, &tmp); msrpm[offset] = tmp; } @@ -619,7 +621,8 @@ static void svm_vcpu_init_msrpm(u32 *msrpm) if (!direct_access_msrs[i].always) continue; - set_msr_interception(msrpm, direct_access_msrs[i].index, 1, 1); + set_msr_interception(msrpm, direct_access_msrs[i].index, + MSR_TYPE_RW, 1); } } @@ -671,10 +674,14 @@ static void svm_enable_lbrv(struct vcpu_svm *svm) u32 *msrpm = svm->msrpm; svm...

...& MSR_TYPE_R) + value ? clear_bit(bit_read, &tmp) : set_bit(bit_read, &tmp); + if (type & MSR_TYPE_W) + value ? clear_bit(bit_write, &tmp) : set_bit(bit_write, &tmp); + msrpm[offset] = tmp; } @@ -1113,7 +1116,8 @@ static void svm_vcpu_init_msrpm(u32 *msrpm) if (!direct_access_msrs[i].always) continue; - set_msr_interception(msrpm, direct_access_msrs[i].index, 1, 1); + set_msr_interception(msrpm, direct_access_msrs[i].index, + MSR_TYPE_RW, 1); } } @@ -1165,10 +1169,14 @@ static void svm_enable_lbrv(struct vcpu_svm *svm) u32 *msrpm = svm->msrpm; s...

...PE_W) && + kvmi_monitor_msrw_intercept(vcpu, msr, !value)) + type &= ~MSR_TYPE_W; + + /* + * Avoid the below warning for kvmi intercepted msrs. + */ + if (!kvmi_msrw_intercept_originator(vcpu)) +#endif /* CONFIG_KVM_INTROSPECTION */ + /* * If this warning triggers extend the direct_access_msrs list at the * beginning of the file diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index e423dbbf3cf5..2aaa74caefff 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -3630,6 +3630,12 @@ static __always_inline void vmx_disable_intercept_for_msr(struct kvm_vcpu *vcp...

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