KVM: selftests: Convert some printf's to pr_info's

We leave some printf's because they inform the user the test is being
skipped. QUIET should not disable those. We also leave the printf's
used for help text.

Signed-off-by: Andrew Jones <[e-mail]>
Signed-off-by: Paolo Bonzini <[e-mail]>

tools/testing/selftests/kvm/kvm_create_max_vcpus.c

···
 	struct kvm_vm *vm;
 	int i;
 
-	printf("Testing creating %d vCPUs, with IDs %d...%d.\n",
-	       num_vcpus, first_vcpu_id, first_vcpu_id + num_vcpus - 1);
+	pr_info("Testing creating %d vCPUs, with IDs %d...%d.\n",
+		num_vcpus, first_vcpu_id, first_vcpu_id + num_vcpus - 1);
 
 	vm = vm_create(VM_MODE_DEFAULT, DEFAULT_GUEST_PHY_PAGES, O_RDWR);
 
···
 	int kvm_max_vcpu_id = kvm_check_cap(KVM_CAP_MAX_VCPU_ID);
 	int kvm_max_vcpus = kvm_check_cap(KVM_CAP_MAX_VCPUS);
 
-	printf("KVM_CAP_MAX_VCPU_ID: %d\n", kvm_max_vcpu_id);
-	printf("KVM_CAP_MAX_VCPUS: %d\n", kvm_max_vcpus);
+	pr_info("KVM_CAP_MAX_VCPU_ID: %d\n", kvm_max_vcpu_id);
+	pr_info("KVM_CAP_MAX_VCPUS: %d\n", kvm_max_vcpus);
 
 	/*
 	 * Upstream KVM prior to 4.8 does not support KVM_CAP_MAX_VCPU_ID.

tools/testing/selftests/kvm/s390x/resets.c

···
 
 static void test_normal(void)
 {
-	printf("Testing normal reset\n");
+	pr_info("Testing normal reset\n");
 	/* Create VM */
 	vm = vm_create_default(VCPU_ID, 0, guest_code_initial);
 	run = vcpu_state(vm, VCPU_ID);
···
 
 static void test_initial(void)
 {
-	printf("Testing initial reset\n");
+	pr_info("Testing initial reset\n");
 	vm = vm_create_default(VCPU_ID, 0, guest_code_initial);
 	run = vcpu_state(vm, VCPU_ID);
 	regs = &run->s.regs;
···
 
 static void test_clear(void)
 {
-	printf("Testing clear reset\n");
+	pr_info("Testing clear reset\n");
 	vm = vm_create_default(VCPU_ID, 0, guest_code_initial);
 	run = vcpu_state(vm, VCPU_ID);
 	regs = &run->s.regs;

tools/testing/selftests/kvm/x86_64/mmio_warning_test.c

···
 	struct kvm_run *run = tc->run;
 
 	res = ioctl(kvmcpu, KVM_RUN, 0);
-	printf("ret1=%d exit_reason=%d suberror=%d\n",
+	pr_info("ret1=%d exit_reason=%d suberror=%d\n",
 		res, run->exit_reason, run->internal.suberror);
 
 	return 0;

tools/testing/selftests/kvm/x86_64/smm_test.c

···
 		vcpu_alloc_vmx(vm, &vmx_pages_gva);
 		vcpu_args_set(vm, VCPU_ID, 1, vmx_pages_gva);
 	} else {
-		printf("will skip SMM test with VMX enabled\n");
+		pr_info("will skip SMM test with VMX enabled\n");
 		vcpu_args_set(vm, VCPU_ID, 1, 0);
 	}
 

tools/testing/selftests/kvm/x86_64/state_test.c

···
 		vcpu_alloc_vmx(vm, &vmx_pages_gva);
 		vcpu_args_set(vm, VCPU_ID, 1, vmx_pages_gva);
 	} else {
-		printf("will skip nested state checks\n");
+		pr_info("will skip nested state checks\n");
 		vcpu_args_set(vm, VCPU_ID, 1, 0);
 	}
 

tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c

···
 
 static void report(int64_t val)
 {
-	printf("IA32_TSC_ADJUST is %ld (%lld * TSC_ADJUST_VALUE + %lld).\n",
-	       val, val / TSC_ADJUST_VALUE, val % TSC_ADJUST_VALUE);
+	pr_info("IA32_TSC_ADJUST is %ld (%lld * TSC_ADJUST_VALUE + %lld).\n",
+		val, val / TSC_ADJUST_VALUE, val % TSC_ADJUST_VALUE);
 }
 
 int main(int argc, char *argv[])

tools/testing/selftests/kvm/x86_64/xss_msr_test.c

···
 		xss_supported = entry && !!(entry->eax & X86_FEATURE_XSAVES);
 	}
 	if (!xss_supported) {
-		printf("IA32_XSS is not supported by the vCPU.\n");
+		printf("IA32_XSS is not supported by the vCPU, skipping test\n");
 		exit(KSFT_SKIP);
 	}