search for: kvm_vm

...5994,6 +5995,11 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu) } } + if (kvmi_vcpu_running_singlestep(vcpu) && + exit_reason != EXIT_REASON_EPT_VIOLATION && + exit_reason != EXIT_REASON_MONITOR_TRAP_FLAG) + kvmi_singlestep_failed(vcpu); + if (exit_reason < kvm_vmx_max_exit_handlers && kvm_vmx_exit_handlers[exit_reason]) { #ifdef CONFIG_RETPOLINE diff --git a/include/linux/kvmi_host.h b/include/linux/kvmi_host.h index 7c84ca681411..723a902f4b89 100644 --- a/include/linux/kvmi_host.h +++ b/include/linux/kvmi_host.h @@ -95,6 +95,8 @@ bool kvmi_h...

...s/testing/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index 27de5fb24580..830b64cae20b 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -96,6 +96,11 @@ static void toggle_event_permission(struct kvm_vm *vm, __s32 id, bool allow) id, errno, strerror(errno)); } +static void disallow_event(struct kvm_vm *vm, __s32 event_id) +{ + toggle_event_permission(vm, event_id, false); +} + static void allow_event(struct kvm_vm *vm, __s32 event_id) { toggle_event_permission(vm, event_id, true); @@ -72...

...esting/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index 657684ec6ff5..30741983a3ab 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -1551,25 +1551,43 @@ static void test_cmd_vcpu_get_xcr(struct kvm_vm *vm) cmd_vcpu_get_xcr(vm, xcr1, &value, no_padding, -KVM_EINVAL); } -static void cmd_vcpu_get_xsave(struct kvm_vm *vm) +static void cmd_vcpu_get_xsave(struct kvm_vm *vm, struct kvm_xsave *rpl) { struct { struct kvmi_msg_hdr hdr; struct kvmi_vcpu_hdr vcpu_hdr; } req = {}; - struc...

...ng/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index da6a06fa0baa..73aafc5d959a 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -887,6 +887,80 @@ static void test_cmd_vcpu_control_events(struct kvm_vm *vm) } +static void cmd_vcpu_get_registers(struct kvm_vm *vm, struct kvm_regs *regs) +{ + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + struct kvmi_vcpu_get_registers cmd; + } req = {}; + struct kvmi_vcpu_get_registers_reply rpl; + + test_vcpu0_command(vm, KVMI_VCPU...

...ftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index cf5edf91197d..9056a826864b 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -1763,6 +1763,36 @@ static void test_cmd_vcpu_control_singlestep(struct kvm_vm *vm) disable_vcpu_event(vm, KVMI_EVENT_SINGLESTEP); } +static void cmd_translate_gva(struct kvm_vm *vm, vm_vaddr_t gva, + vm_paddr_t expected_gpa) +{ + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + struct kvmi_vcpu_translate_gva cmd; + } req = { 0 }; + struc...

...esting/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index 33fffcb3a171..74eafbcae14a 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -2071,6 +2071,33 @@ static void test_cmd_translate_gva(struct kvm_vm *vm) (vm_vaddr_t)-1, (vm_paddr_t)-1); } +static __u16 get_ept_view(struct kvm_vm *vm) +{ + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + } req = {}; + struct kvmi_vcpu_get_ept_view_reply rpl; + + test_vcpu0_command(vm, KVMI_VCPU_GET_EPT_VIEW, + &req.hdr, si...

...-158,6 +168,9 @@ static void guest_code(void) case GUEST_TEST_HYPERCALL: guest_hypercall_test(); break; + case GUEST_TEST_MSR: + guest_msr_test(); + break; case GUEST_TEST_XSETBV: guest_xsetbv_test(); break; @@ -1691,6 +1704,111 @@ static void test_event_descriptor(struct kvm_vm *vm) disable_vcpu_event(vm, event_id); } +static void cmd_control_msr(struct kvm_vm *vm, __u32 msr, __u8 enable, + __u8 padding, int expected_err) +{ + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + struct kvmi_vcpu_control_msr cmd; + } req = {}; + int r; + + r...

...testing/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index 8b92ff7cee6b..657684ec6ff5 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -1551,6 +1551,35 @@ static void test_cmd_vcpu_get_xcr(struct kvm_vm *vm) cmd_vcpu_get_xcr(vm, xcr1, &value, no_padding, -KVM_EINVAL); } +static void cmd_vcpu_get_xsave(struct kvm_vm *vm) +{ + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + } req = {}; + struct kvm_xsave rpl; + int r; + + r = do_vcpu0_command(vm, KVMI_VCPU_GET_XSAVE...

...ols/testing/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index 0569185a7064..8b92ff7cee6b 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -1514,6 +1514,43 @@ static void test_event_xsetbv(struct kvm_vm *vm) disable_vcpu_event(vm, event_id); } +static void cmd_vcpu_get_xcr(struct kvm_vm *vm, u8 xcr, u64 *value, + u8 padding, int expected_err) +{ + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + struct kvmi_vcpu_get_xcr cmd; + } req = { 0 }; + struct kvmi_vcpu_...

...it a/tools/testing/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index 1f4a165ab640..3d46d6e6b38c 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -72,6 +72,11 @@ static void set_event_perm(struct kvm_vm *vm, __s32 id, __u32 allow, "KVM_INTROSPECTION_EVENT"); } +static void disallow_event(struct kvm_vm *vm, __s32 event_id) +{ + set_event_perm(vm, event_id, 0, 0); +} + static void allow_event(struct kvm_vm *vm, __s32 event_id) { set_event_perm(vm, event_id, 1, 0); @@ -300,13 +30...

...g/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index ffd0337d0567..7269afd4c36d 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -1033,6 +1033,39 @@ static void test_cmd_vcpu_set_registers(struct kvm_vm *vm) stop_vcpu_worker(vcpu_thread, &data); } +static int cmd_vcpu_get_cpuid(struct kvm_vm *vm, + __u32 function, __u32 index, + struct kvmi_vcpu_get_cpuid_reply *rpl) +{ + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + struct kvmi_vcpu_get_cpuid c...

...ng/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index 830b64cae20b..5d76d49bc277 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -803,6 +803,31 @@ static void test_cmd_vcpu_control_events(struct kvm_vm *vm) test_invalid_vcpu_event(vm, invalid_id); } +static void get_vcpu_registers(struct kvm_vm *vm, + struct kvm_regs *regs) +{ + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + struct kvmi_vcpu_get_registers cmd; + } req = {}; + struct kvmi_vcpu_get_registers...

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

...s/testing/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index 30741983a3ab..7174e464d759 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -1599,6 +1599,24 @@ static void test_cmd_vcpu_xsave(struct kvm_vm *vm) cmd_vcpu_set_xsave(vm, &xsave); } +static void test_cmd_vcpu_get_mtrr_type(struct kvm_vm *vm) +{ + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + struct kvmi_vcpu_get_mtrr_type cmd; + } req = {}; + struct kvmi_vcpu_get_mtrr_type_reply rpl; + + req.cmd.gpa =...

...est.c index 0803d7e5af1e..967ea568d93c 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -829,6 +829,14 @@ static void stop_vcpu_worker(pthread_t vcpu_thread, wait_vcpu_worker(vcpu_thread); } +static int __do_vcpu_command(struct kvm_vm *vm, int cmd_id, + struct kvmi_msg_hdr *req, size_t req_size, + void *rpl, size_t rpl_size) +{ + send_message(cmd_id, req, req_size); + return receive_cmd_reply(req, rpl, rpl_size); +} + static int do_vcpu_command(struct kvm_vm *vm, int cmd_id, struct kvmi_msg_hdr *req, size_t...

...-153,6 +163,9 @@ static void guest_code(void) case GUEST_TEST_HYPERCALL: guest_hypercall_test(); break; + case GUEST_TEST_MSR: + guest_msr_test(); + break; case GUEST_TEST_XSETBV: guest_xsetbv_test(); break; @@ -1419,6 +1432,94 @@ static void test_event_descriptor(struct kvm_vm *vm) disable_vcpu_event(vm, event_id); } +static int cmd_control_msr(struct kvm_vm *vm, __u32 msr, bool enable) +{ + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + struct kvmi_vcpu_control_msr cmd; + } req = {}; + + req.cmd.msr = msr; + req.cmd.enable = enable ? 1 :...

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

...ols/testing/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index 299f4d29d0d6..638491f33138 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -1322,6 +1322,26 @@ static void test_event_xsetbv(struct kvm_vm *vm) disable_vcpu_event(vm, event_id); } +static void test_cmd_vcpu_get_xsave(struct kvm_vm *vm) +{ + struct kvm_cpuid_entry2 *entry; + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + } req = {}; + struct kvm_xsave rpl; + + entry = kvm_get_supported_cpuid_entry(1); + i...

...x"); @@ -85,6 +91,9 @@ static void guest_code(void) case GUEST_TEST_BP: guest_bp_test(); break; + case GUEST_TEST_CR: + guest_cr_test(); + break; case GUEST_TEST_HYPERCALL: guest_hypercall_test(); break; @@ -1029,6 +1038,94 @@ static void test_event_breakpoint(struct kvm_vm *vm) disable_vcpu_event(vm, event_id); } +static int cmd_control_cr(struct kvm_vm *vm, __u32 cr, bool enable) +{ + struct { + struct kvmi_msg_hdr hdr; + struct kvmi_vcpu_hdr vcpu_hdr; + struct kvmi_vcpu_control_cr cmd; + } req = {}; + + req.cmd.cr = cr; + req.cmd.enable = enable ? 1 : 0; +...

...elftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index 6c9d1f3f927c..2852e6894e81 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/tools/testing/selftests/kvm/x86_64/kvmi_test.c @@ -1229,6 +1229,17 @@ static void test_cmd_vcpu_inject_exception(struct kvm_vm *vm) disable_vcpu_event(vm, KVMI_EVENT_BREAKPOINT); } +static void test_cmd_vm_get_max_gfn(void) +{ + struct kvmi_vm_get_max_gfn_reply rpl; + struct kvmi_msg_hdr req; + + test_vm_command(KVMI_VM_GET_MAX_GFN, &req, sizeof(req), + &rpl, sizeof(rpl)); + + DEBUG("max_gfn: 0x%llx\n&q...