kvm/x86_64/userspace_msr_exit_test.c

378 static void check_for_guest_assert(struct kvm_vcpu *vcpu)
382 	if (vcpu->run->exit_reason == KVM_EXIT_IO &&
383 	    get_ucall(vcpu, &uc) == UCALL_ABORT) {
388 static void process_rdmsr(struct kvm_vcpu *vcpu, uint32_t msr_index)
390 	struct kvm_run *run = vcpu->run;
392 	check_for_guest_assert(vcpu);
394 	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_X86_RDMSR);
420 static void process_wrmsr(struct kvm_vcpu *vcpu, uint32_t msr_index)
422 	struct kvm_run *run = vcpu->run;
424 	check_for_guest_assert(vcpu);
426 	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_X86_WRMSR);
448 static void process_ucall_done(struct kvm_vcpu *vcpu)
452 	check_for_guest_assert(vcpu);
454 	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
456 	TEST_ASSERT(get_ucall(vcpu, &uc) == UCALL_DONE,
461 static uint64_t process_ucall(struct kvm_vcpu *vcpu)
465 	check_for_guest_assert(vcpu);
467 	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
469 	switch (get_ucall(vcpu, &uc)) {
473 		check_for_guest_assert(vcpu);
476 		process_ucall_done(vcpu);
485 static void run_guest_then_process_rdmsr(struct kvm_vcpu *vcpu,
488 	vcpu_run(vcpu);
489 	process_rdmsr(vcpu, msr_index);
492 static void run_guest_then_process_wrmsr(struct kvm_vcpu *vcpu,
495 	vcpu_run(vcpu);
496 	process_wrmsr(vcpu, msr_index);
499 static uint64_t run_guest_then_process_ucall(struct kvm_vcpu *vcpu)
501 	vcpu_run(vcpu);
502 	return process_ucall(vcpu);
505 static void run_guest_then_process_ucall_done(struct kvm_vcpu *vcpu)
507 	vcpu_run(vcpu);
508 	process_ucall_done(vcpu);
515 	struct kvm_vm *vm = vcpu->vm;
531 	run_guest_then_process_rdmsr(vcpu, MSR_IA32_XSS);
532 	run_guest_then_process_wrmsr(vcpu, MSR_IA32_XSS);
533 	run_guest_then_process_wrmsr(vcpu, MSR_IA32_XSS);
535 	run_guest_then_process_rdmsr(vcpu, MSR_IA32_FLUSH_CMD);
536 	run_guest_then_process_wrmsr(vcpu, MSR_IA32_FLUSH_CMD);
537 	run_guest_then_process_wrmsr(vcpu, MSR_IA32_FLUSH_CMD);
539 	run_guest_then_process_wrmsr(vcpu, MSR_NON_EXISTENT);
540 	run_guest_then_process_rdmsr(vcpu, MSR_NON_EXISTENT);
542 	vcpu_run(vcpu);
543 	cmd = process_ucall(vcpu);
550 		run_guest_then_process_rdmsr(vcpu, MSR_IA32_XSS);
551 		run_guest_then_process_wrmsr(vcpu, MSR_IA32_XSS);
552 		run_guest_then_process_wrmsr(vcpu, MSR_IA32_XSS);
554 		run_guest_then_process_rdmsr(vcpu, MSR_IA32_FLUSH_CMD);
555 		run_guest_then_process_wrmsr(vcpu, MSR_IA32_FLUSH_CMD);
556 		run_guest_then_process_wrmsr(vcpu, MSR_IA32_FLUSH_CMD);
558 		run_guest_then_process_wrmsr(vcpu, MSR_NON_EXISTENT);
559 		run_guest_then_process_rdmsr(vcpu, MSR_NON_EXISTENT);
562 		run_guest_then_process_ucall_done(vcpu);
569 static int handle_ucall(struct kvm_vcpu *vcpu)
573 	switch (get_ucall(vcpu, &uc)) {
578 		vm_ioctl(vcpu->vm, KVM_X86_SET_MSR_FILTER, &no_filter_deny);
628 	struct kvm_vm *vm = vcpu->vm;
629 	struct kvm_run *run = vcpu->run;
645 		vcpu_run(vcpu);
655 			if (handle_ucall(vcpu))
669 	struct kvm_vm *vm = vcpu->vm;
680 	run_guest_then_process_rdmsr(vcpu, MSR_FS_BASE);
681 	TEST_ASSERT(run_guest_then_process_ucall(vcpu) == UCALL_SYNC,
684 	run_guest_then_process_rdmsr(vcpu, MSR_GS_BASE);
685 	run_guest_then_process_ucall_done(vcpu);
757 	struct kvm_vm *vm = vcpu->vm;