search for: kvmi_vcpu_get_mtrr_type

...tation/virt/kvm/kvmi.rst index 24605aaede9a..6de260c09f3b 100644 --- a/Documentation/virt/kvm/kvmi.rst +++ b/Documentation/virt/kvm/kvmi.rst @@ -902,6 +902,38 @@ Modifies the XSAVE area. * -KVM_EINVAL - the padding is not zero * -KVM_EAGAIN - the selected vCPU can't be introspected yet +21. KVMI_VCPU_GET_MTRR_TYPE +--------------------------- + +:Architecture: x86 +:Versions: >= 1 +:Parameters: + +:: + + struct kvmi_vcpu_hdr; + struct kvmi_vcpu_get_mtrr_type { + __u64 gpa; + }; + +:Returns: + +:: + + struct kvmi_error_code; + struct kvmi_vcpu_get_mtrr_type_reply { + __u8 type; + __u8 padding[7]; + }; +...

...7d 100644 --- a/virt/kvm/introspection/kvmi_int.h +++ b/virt/kvm/introspection/kvmi_int.h @@ -50,6 +50,7 @@ | BIT(KVMI_VCPU_CONTROL_CR) \ | BIT(KVMI_VCPU_CONTROL_EVENTS) \ | BIT(KVMI_VCPU_CONTROL_MSR) \ + | BIT(KVMI_VCPU_CONTROL_SINGLESTEP) \ | BIT(KVMI_VCPU_GET_CPUID) \ | BIT(KVMI_VCPU_GET_MTRR_TYPE) \ | BIT(KVMI_VCPU_GET_REGISTERS) \ @@ -168,5 +169,7 @@ bool kvmi_arch_pf_event(struct kvm_vcpu *vcpu, gpa_t gpa, gva_t gva, u8 access); bool kvmi_arch_pf_of_interest(struct kvm_vcpu *vcpu); void kvmi_arch_features(struct kvmi_features *feat); +bool kvmi_arch_start_singlestep(struct kvm_v...

...return 1; + return kvm_x86_ops->set_msr(vcpu, &msr); } diff --git a/include/uapi/linux/kvmi.h b/include/uapi/linux/kvmi.h index a8f5dc415e3d..2d37d407f65d 100644 --- a/include/uapi/linux/kvmi.h +++ b/include/uapi/linux/kvmi.h @@ -39,6 +39,7 @@ enum { KVMI_VCPU_GET_XSAVE = 18, KVMI_VCPU_GET_MTRR_TYPE = 19, + KVMI_VCPU_CONTROL_MSR = 20, KVMI_NUM_MESSAGES }; @@ -52,6 +53,7 @@ enum { KVMI_EVENT_TRAP = 5, KVMI_EVENT_XSETBV = 6, KVMI_EVENT_DESCRIPTOR = 7, + KVMI_EVENT_MSR = 8, KVMI_NUM_EVENTS }; diff --git a/tools/testing/selftests/kvm/x86_64/kvmi_test.c b/tools/te...

...x86_ops.set_msr(vcpu, &msr); } diff --git a/include/uapi/linux/kvmi.h b/include/uapi/linux/kvmi.h index f2e802d2b712..2872f90ff092 100644 --- a/include/uapi/linux/kvmi.h +++ b/include/uapi/linux/kvmi.h @@ -43,6 +43,7 @@ enum { KVMI_VCPU_GET_XSAVE = 19, KVMI_VCPU_SET_XSAVE = 20, KVMI_VCPU_GET_MTRR_TYPE = 21, + KVMI_VCPU_CONTROL_MSR = 22, KVMI_NUM_MESSAGES }; @@ -56,6 +57,7 @@ enum { KVMI_EVENT_TRAP = 5, KVMI_EVENT_XSETBV = 6, KVMI_EVENT_DESCRIPTOR = 7, + KVMI_EVENT_MSR = 8, KVMI_NUM_EVENTS }; diff --git a/tools/testing/selftests/kvm/x86_64/kvmi_test.c b/tools/te...

...I_VCPU_CONTROL_MSR] = handle_vcpu_control_msr, [KVMI_VCPU_CONTROL_SINGLESTEP] = handle_vcpu_control_singlestep, [KVMI_VCPU_GET_CPUID] = handle_vcpu_get_cpuid, + [KVMI_VCPU_GET_EPT_VIEW] = handle_vcpu_get_ept_view, [KVMI_VCPU_GET_INFO] = handle_vcpu_get_info, [KVMI_VCPU_GET_MTRR_TYPE] = handle_vcpu_get_mtrr_type, [KVMI_VCPU_GET_REGISTERS] = handle_vcpu_get_registers,

...KVM: introspection: add KVMI_EVENT_BREAKPOINT KVM: introspection: add KVMI_VCPU_CONTROL_CR and KVMI_EVENT_CR KVM: introspection: add KVMI_VCPU_INJECT_EXCEPTION + KVMI_EVENT_TRAP KVM: introspection: add KVMI_EVENT_XSETBV KVM: introspection: add KVMI_VCPU_GET_XSAVE KVM: introspection: add KVMI_VCPU_GET_MTRR_TYPE KVM: introspection: add KVMI_VCPU_CONTROL_MSR and KVMI_EVENT_MSR KVM: introspection: add KVMI_VM_SET_PAGE_ACCESS KVM: introspection: add KVMI_EVENT_PF KVM: introspection: emulate a guest page table walk on SPT violations due to A/D bit updates KVM: x86: call the page tracking code on...

...; + + struct radix_tree_root access_tree; + rwlock_t access_tree_lock; }; int kvmi_version(void); diff --git a/include/uapi/linux/kvmi.h b/include/uapi/linux/kvmi.h index 2872f90ff092..dc82f192534c 100644 --- a/include/uapi/linux/kvmi.h +++ b/include/uapi/linux/kvmi.h @@ -45,6 +45,8 @@ enum { KVMI_VCPU_GET_MTRR_TYPE = 21, KVMI_VCPU_CONTROL_MSR = 22, + KVMI_VM_SET_PAGE_ACCESS = 23, + KVMI_NUM_MESSAGES }; @@ -68,6 +70,12 @@ enum { KVMI_EVENT_ACTION_CRASH = 2, }; +enum { + KVMI_PAGE_ACCESS_R = 1 << 0, + KVMI_PAGE_ACCESS_W = 1 << 1, + KVMI_PAGE_ACCESS_X = 1 << 2, +}; + struct...

...KVM: introspection: add KVMI_EVENT_BREAKPOINT KVM: introspection: add KVMI_VCPU_CONTROL_CR and KVMI_EVENT_CR KVM: introspection: add KVMI_VCPU_INJECT_EXCEPTION + KVMI_EVENT_TRAP KVM: introspection: add KVMI_EVENT_XSETBV KVM: introspection: add KVMI_VCPU_GET_XSAVE KVM: introspection: add KVMI_VCPU_GET_MTRR_TYPE KVM: introspection: add KVMI_VCPU_CONTROL_MSR and KVMI_EVENT_MSR KVM: introspection: add KVMI_VM_SET_PAGE_ACCESS KVM: introspection: add KVMI_EVENT_PF KVM: introspection: emulate a guest page table walk on SPT violations due to A/D bit updates KVM: x86: call the page tracking code on...

This patch series is based on the VM introspection patches (https://lore.kernel.org/kvm/20200721210922.7646-1-alazar at bitdefender.com/), extending the introspection API with EPT Views and Virtualization Exceptions (#VE) support. The purpose of this series is to get an initial feedback and to see if we are on the right track, especially because the changes made to add the EPT views are not small