search for: kvmi_vcpu_get_cpuid

...644 --- a/Documentation/virt/kvm/kvmi.rst +++ b/Documentation/virt/kvm/kvmi.rst @@ -641,6 +641,42 @@ currently being handled is replied to. * -KVM_EAGAIN - the selected vCPU can't be introspected yet * -KVM_EOPNOTSUPP - the command hasn't been received during an introspection event +13. KVMI_VCPU_GET_CPUID +----------------------- + +:Architectures: x86 +:Versions: >= 1 +:Parameters: + +:: + + struct kvmi_vcpu_hdr; + struct kvmi_vcpu_get_cpuid { + __u32 function; + __u32 index; + }; + +:Returns: + +:: + + struct kvmi_error_code; + struct kvmi_vcpu_get_cpuid_reply { + __u32 eax; + __u32 ebx; +...

....h index 06b924277f37..64425ff16c7d 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 kv...

...unhook_introspection(vm); } diff --git a/virt/kvm/introspection/kvmi_int.h b/virt/kvm/introspection/kvmi_int.h index 5a00e38c88cc..5e1231f09440 100644 --- a/virt/kvm/introspection/kvmi_int.h +++ b/virt/kvm/introspection/kvmi_int.h @@ -47,6 +47,7 @@ | BIT(KVMI_VCPU_CONTROL_EVENTS) \ | BIT(KVMI_VCPU_GET_CPUID) \ | BIT(KVMI_VCPU_GET_REGISTERS) \ + | BIT(KVMI_VCPU_GET_XSAVE) \ | BIT(KVMI_VCPU_INJECT_EXCEPTION) \ | BIT(KVMI_VCPU_SET_REGISTERS) \ ) @@ -135,5 +136,8 @@ int kvmi_arch_cmd_vcpu_inject_exception(struct kvm_vcpu *vcpu, u8 vector, u32 error_code, u64 address); void kvmi_arc...

...rk_available(vcpu, VCPU_EXREG_CR3); diff --git a/include/uapi/linux/kvmi.h b/include/uapi/linux/kvmi.h index eec33e85b0c7..7be58dcf194f 100644 --- a/include/uapi/linux/kvmi.h +++ b/include/uapi/linux/kvmi.h @@ -32,6 +32,7 @@ enum { KVMI_VCPU_GET_REGISTERS = 12, KVMI_VCPU_SET_REGISTERS = 13, KVMI_VCPU_GET_CPUID = 14, + KVMI_VCPU_CONTROL_CR = 15, KVMI_NUM_MESSAGES }; @@ -41,6 +42,7 @@ enum { KVMI_EVENT_PAUSE_VCPU = 1, KVMI_EVENT_HYPERCALL = 2, KVMI_EVENT_BREAKPOINT = 3, + KVMI_EVENT_CR = 4, KVMI_NUM_EVENTS }; diff --git a/tools/testing/selftests/kvm/x86_64/kvmi_test.c b/to...

...L) \ + | BIT(KVMI_EVENT_MSR) \ | BIT(KVMI_EVENT_TRAP) \ | BIT(KVMI_EVENT_PAUSE_VCPU) \ | BIT(KVMI_EVENT_XSETBV) \ @@ -46,6 +47,7 @@ | BIT(KVMI_VCPU_PAUSE) \ | BIT(KVMI_VCPU_CONTROL_CR) \ | BIT(KVMI_VCPU_CONTROL_EVENTS) \ + | BIT(KVMI_VCPU_CONTROL_MSR) \ | BIT(KVMI_VCPU_GET_CPUID) \ | BIT(KVMI_VCPU_GET_MTRR_TYPE) \ | BIT(KVMI_VCPU_GET_REGISTERS) \ @@ -143,5 +145,7 @@ int kvmi_arch_cmd_vcpu_get_xsave(struct kvm_vcpu *vcpu, struct kvmi_vcpu_get_xsave_reply **dest, size_t *dest_size); int kvmi_arch_cmd_vcpu_get_mtrr_type(struct kvm_vcpu *vcpu, u64 gpa, u8...

...d a jobs list to every introspected vCPU KVM: introspection: add KVMI_VCPU_PAUSE KVM: introspection: add KVMI_EVENT_PAUSE_VCPU KVM: introspection: extend KVMI_GET_VERSION with struct kvmi_features KVM: introspection: add KVMI_VCPU_TRANSLATE_GVA Marian Rotariu (1): KVM: introspection: add KVMI_VCPU_GET_CPUID Mathieu Tarral (1): export kill_pid_info() Mihai Don?u (34): KVM: x86: add kvm_arch_vcpu_get_regs() and kvm_arch_vcpu_get_sregs() KVM: x86: avoid injecting #PF when emulate the VMCALL instruction KVM: x86: add .control_msr_intercept() KVM: x86: vmx: use a symbolic constant when checking...

...se functions are executed from the vCPU thread. The receiving thread * passes the messages using a newly allocated 'struct kvmi_vcpu_msg_job' @@ -582,6 +597,7 @@ static int(*const msg_vcpu[])(const struct kvmi_vcpu_msg_job *, [KVMI_VCPU_CONTROL_EVENTS] = handle_vcpu_control_events, [KVMI_VCPU_GET_CPUID] = handle_vcpu_get_cpuid, [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, [KVMI_VCPU_GET_XCR] = handle_vcpu_get_xcr, [KVMI_VCPU_GET_XSAVE] = hand...

...ad * passes the messages using a newly allocated 'struct kvmi_vcpu_msg_job' @@ -675,6 +688,7 @@ static int(*const msg_vcpu[])(const struct kvmi_vcpu_msg_job *, [KVMI_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,

..._reply(job, msg, ec, &rpl, sizeof(rpl)); +} + /* * These functions are executed from the vCPU thread. The receiving thread * passes the messages using a newly allocated 'struct kvmi_vcpu_msg_job' @@ -538,6 +552,7 @@ static int(*const msg_vcpu[])(const struct kvmi_vcpu_msg_job *, [KVMI_VCPU_GET_CPUID] = handle_vcpu_get_cpuid, [KVMI_VCPU_GET_INFO] = handle_vcpu_get_info, [KVMI_VCPU_GET_REGISTERS] = handle_vcpu_get_registers, + [KVMI_VCPU_GET_XCR] = handle_vcpu_get_xcr, [KVMI_VCPU_INJECT_EXCEPTION] = handle_vcpu_inject_exception, [KVMI_VCPU_SET_REGISTERS] = h...

...ontrol_events(struct kvm_introspection *kvmi, unsigned int event_id, bool enable); int kvmi_cmd_vcpu_control_events(struct kvm_vcpu *vcpu, @@ -96,5 +105,7 @@ int kvmi_arch_cmd_vcpu_get_registers(struct kvm_vcpu *vcpu, int kvmi_arch_cmd_vcpu_get_cpuid(struct kvm_vcpu *vcpu, const struct kvmi_vcpu_get_cpuid *req, struct kvmi_vcpu_get_cpuid_reply *rpl); +bool kvmi_arch_is_agent_hypercall(struct kvm_vcpu *vcpu); +void kvmi_arch_hypercall_event(struct kvm_vcpu *vcpu); #endif diff --git a/virt/kvm/introspection/kvmi_msg.c b/virt/kvm/introspection/kvmi_msg.c index 11873cb3c23b..bcdf104eaa43 100644...

...tatic int(*const msg_vcpu[])(const struct kvmi_vcpu_msg_job *, [KVMI_EVENT] = handle_vcpu_event_reply, [KVMI_VCPU_CONTROL_CR] = handle_vcpu_control_cr, [KVMI_VCPU_CONTROL_EVENTS] = handle_vcpu_control_events, + [KVMI_VCPU_CONTROL_MSR] = handle_vcpu_control_msr, [KVMI_VCPU_GET_CPUID] = handle_vcpu_get_cpuid, [KVMI_VCPU_GET_INFO] = handle_vcpu_get_info, [KVMI_VCPU_GET_MTRR_TYPE] = handle_vcpu_get_mtrr_type,

...trospection: add KVMI_VM_CONTROL_CLEANUP KVM: introspection: add KVMI_VCPU_GET_XCR KVM: introspection: add KVMI_VCPU_SET_XSAVE KVM: introspection: extend KVMI_GET_VERSION with struct kvmi_features KVM: introspection: add KVMI_VCPU_TRANSLATE_GVA Marian Rotariu (1): KVM: introspection: add KVMI_VCPU_GET_CPUID Mathieu Tarral (1): signal: export kill_pid_info() Mihai Don?u (35): KVM: x86: add kvm_arch_vcpu_get_regs() and kvm_arch_vcpu_get_sregs() KVM: x86: avoid injecting #PF when emulate the VMCALL instruction KVM: x86: add .control_msr_intercept() KVM: x86: vmx: use a symbolic constant when...

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