search for: msrpm

...vm/svm.c b/arch/x86/kvm/svm.c index 0021d8c2feca..174ced633b60 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1077,7 +1077,8 @@ static bool msr_write_intercepted(struct kvm_vcpu *vcpu, unsigned msr) return !!test_bit(bit_write, &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_interce...

...reg { diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 4e5b07606891..e16be80edd7e 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -584,7 +584,7 @@ static bool msr_write_intercepted(struct kvm_vcpu *vcpu, unsigned msr) } static void set_msr_interception(u32 *msrpm, unsigned msr, - int read, int write) + int type, bool value) { u8 bit_read, bit_write; unsigned long tmp; @@ -603,8 +603,10 @@ static void set_msr_interception(u32 *msrpm, unsigned msr, BUG_ON(offset == MSR_INVALID); - read ? clear_bit(bit_read, &tmp) : set_bit(bit_read,...

...4 enum kvm_reg { diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index e3369562d6fe..0021d8c2feca 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1078,7 +1078,7 @@ static bool msr_write_intercepted(struct kvm_vcpu *vcpu, unsigned msr) } static void set_msr_interception(u32 *msrpm, unsigned msr, - int read, int write) + int type, bool value) { u8 bit_read, bit_write; unsigned long tmp; @@ -1097,8 +1097,11 @@ static void set_msr_interception(u32 *msrpm, unsigned msr, BUG_ON(offset == MSR_INVALID); - read ? clear_bit(bit_read, &tmp) : set_bit(bit_read,...

...*vcpu, int seg); void (*get_segment)(struct kvm_vcpu *vcpu, diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index dfa1a6e74bf7..9c8e77193f98 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -612,6 +612,16 @@ static void set_msr_interception(struct kvm_vcpu *vcpu, msrpm[offset] = tmp; } +static void svm_control_msr_intercept(struct kvm_vcpu *vcpu, unsigned int msr, + int type, bool enable) +{ + const struct vcpu_svm *svm = to_svm(vcpu); + u32 *msrpm = is_guest_mode(vcpu) ? svm->nested.msrpm : + svm->msrpm; + + set_msr_interception(vcpu, ms...

...-7339,6 +7339,16 @@ static inline bool svm_desc_intercepted(struct kvm_vcpu *vcpu) get_intercept(svm, INTERCEPT_LOAD_TR)); } +static void svm_control_msr_intercept(struct kvm_vcpu *vcpu, unsigned int msr, + int type, bool enable) +{ + const struct vcpu_svm *svm = to_svm(vcpu); + u32 *msrpm = is_guest_mode(vcpu) ? svm->nested.msrpm : + svm->msrpm; + + set_msr_interception(vcpu, msrpm, msr, type, !enable); +} + static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .cpu_has_kvm_support = has_svm, .disabled_by_bios = is_disabled, @@ -7370,6 +7380,7 @@ static struct...

...979 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -7098,6 +7098,20 @@ static int nested_enable_evmcs(struct kvm_vcpu *vcpu, return -ENODEV; } +static void svm_msr_intercept(struct kvm_vcpu *vcpu, unsigned int msr, + bool enable) +{ + struct vcpu_svm *svm = to_svm(vcpu); + u32 *msrpm = svm->msrpm; + + /* + * The below code enable or disable the msr interception for both + * read and write. The best way will be to get here the current + * bit status for read and send that value as argument. + */ + set_msr_interception(msrpm, msr, enable, enable); +} + static bool svm_nes...

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

Is it intentional that - under SVM, 32-bit guests can freely set EFER.LME - under VMX, 32-bit guests can''t access EFER at all? Thanks, Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel