search for: kvm_segment

Hi, The structure kvm_segment is defined as follows: struct kvm_segment { __u64 base; __u32 limit; __u16 selector; __u8 type; __u8 present, dpl, db, s, l, g, avl; __u8 unusable; __u8 padding; }; Since the VMX spec defines base is 64 bits, limit is 32bits, selector is...

Hi, The structure kvm_segment is defined as follows: struct kvm_segment { __u64 base; __u32 limit; __u16 selector; __u8 type; __u8 present, dpl, db, s, l, g, avl; __u8 unusable; __u8 padding; }; Since the VMX spec defines base is 64 bits, limit is 32bits, selector is...

Il 20/05/2014 04:25, Jidong Xiao ha scritto: > Hi, > > The structure kvm_segment is defined as follows: > > struct kvm_segment { > __u64 base; > __u32 limit; > __u16 selector; > __u8 type; > __u8 present, dpl, db, s, l, g, avl; > __u8 unusable; > __u8 padding; > }; > > Since the VMX...

...t_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); + bool (*msr_write_intercepted)(struct kvm_vcpu *vcpu, u32 msr); u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg); void (*get_segment)(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index bf1f2bca5357..e3369562d6fe 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -7353,6 +7353,7 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .get_msr_feature = svm_get_msr_feature, .get_msr = svm_g...

...vcpu, int type, clr_cr_intercept(svm, INTERCEPT_CR3_WRITE); } +static 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_set_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg) { @@ -4022,6 +4029,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = { .set_cr0 = svm_set_cr0, .set_cr4 = svm_set_cr4, .control_cr3_intercept = svm_control_cr3_intercept, + .cr3_write_intercepted = svm_cr3_write_intercepted, .set_efer = svm_set_efer, .get_idt = svm_g...

...itel(GUEST_GDTR_BASE, dt->address); } +static bool vmx_desc_intercepted(struct kvm_vcpu *vcpu) +{ + struct vcpu_vmx *vmx = to_vmx(vcpu); + + return !!(secondary_exec_controls_get(vmx) & SECONDARY_EXEC_DESC); +} + static bool rmode_segment_valid(struct kvm_vcpu *vcpu, int seg) { struct kvm_segment var; @@ -7915,6 +7922,7 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = { .set_gdt = vmx_set_gdt, .desc_ctrl_supported = vmx_desc_ctrl_supported, .control_desc_intercept = vmx_control_desc_intercept, + .desc_intercepted = vmx_desc_intercepted, .set_dr7 = vmx_set_dr7, .sync_dirty_deb...

...? set_cr_intercept(svm, INTERCEPT_CR3_READ) : + clr_cr_intercept(svm, INTERCEPT_CR3_READ); + if (type & CR_TYPE_W) + enable ? set_cr_intercept(svm, INTERCEPT_CR3_WRITE) : + clr_cr_intercept(svm, INTERCEPT_CR3_WRITE); +} + static void svm_set_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg) { @@ -4008,6 +4021,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = { .get_cs_db_l_bits = kvm_get_cs_db_l_bits, .set_cr0 = svm_set_cr0, .set_cr4 = svm_set_cr4, + .control_cr3_intercept = svm_control_cr3_intercept, .set_efer = svm_set_efer, .get_idt = svm_get_idt,...

...x.c index 36dfb95ea578..e6878097d736 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -341,7 +341,8 @@ module_param_cb(vmentry_l1d_flush, &vmentry_l1d_flush_ops, NULL, 0644); static bool guest_state_valid(struct kvm_vcpu *vcpu); static u32 vmx_segment_access_rights(struct kvm_segment *var); -static __always_inline void vmx_disable_intercept_for_msr(unsigned long *msr_bitmap, +static __always_inline void vmx_disable_intercept_for_msr(struct kvm_vcpu *vcpu, + unsigned long *msr_bitmap, u32 msr, int type); void vmx_vmexit(void); @@ -2015,7 +2016,7 @@ static in...

...x.c index cf07db129670..ecf7fb21b812 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -342,7 +342,8 @@ module_param_cb(vmentry_l1d_flush, &vmentry_l1d_flush_ops, NULL, 0644); static bool guest_state_valid(struct kvm_vcpu *vcpu); static u32 vmx_segment_access_rights(struct kvm_segment *var); -static __always_inline void vmx_disable_intercept_for_msr(unsigned long *msr_bitmap, +static __always_inline void vmx_disable_intercept_for_msr(struct kvm_vcpu *vcpu, + unsigned long *msr_bitmap, u32 msr, int type); void vmx_vmexit(void); @@ -2086,7 +2087,7 @@ static in...

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