KVM: selftests: Convert platform_info_test away from VCPU_ID

Convert platform_info_test to use vm_create_with_one_vcpu() and pass
around a 'struct kvm_vcpu' object instead of using a global VCPU_ID.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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

@@ -21,7 +21,6 @@
 #include "kvm_util.h"
 #include "processor.h"
 
-#define VCPU_ID 0
 #define MSR_PLATFORM_INFO_MAX_TURBO_RATIO 0xff00
 
 static void guest_code(void)
@@ -35,18 +34,18 @@ static void guest_code(void)
 	}
 }
 
-static void test_msr_platform_info_enabled(struct kvm_vm *vm)
+static void test_msr_platform_info_enabled(struct kvm_vcpu *vcpu)
 {
-	struct kvm_run *run = vcpu_state(vm, VCPU_ID);
+	struct kvm_run *run = vcpu->run;
 	struct ucall uc;
 
-	vm_enable_cap(vm, KVM_CAP_MSR_PLATFORM_INFO, true);
-	vcpu_run(vm, VCPU_ID);
+	vm_enable_cap(vcpu->vm, KVM_CAP_MSR_PLATFORM_INFO, true);
+	vcpu_run(vcpu->vm, vcpu->id);
 	TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
 			"Exit_reason other than KVM_EXIT_IO: %u (%s),\n",
 			run->exit_reason,
 			exit_reason_str(run->exit_reason));
-	get_ucall(vm, VCPU_ID, &uc);
+	get_ucall(vcpu->vm, vcpu->id, &uc);
 	TEST_ASSERT(uc.cmd == UCALL_SYNC,
 			"Received ucall other than UCALL_SYNC: %lu\n", uc.cmd);
 	TEST_ASSERT((uc.args[1] & MSR_PLATFORM_INFO_MAX_TURBO_RATIO) ==
@@ -55,12 +54,12 @@ static void test_msr_platform_info_enabled(struct kvm_vm *vm)
 		MSR_PLATFORM_INFO_MAX_TURBO_RATIO);
 }
 
-static void test_msr_platform_info_disabled(struct kvm_vm *vm)
+static void test_msr_platform_info_disabled(struct kvm_vcpu *vcpu)
 {
-	struct kvm_run *run = vcpu_state(vm, VCPU_ID);
+	struct kvm_run *run = vcpu->run;
 
-	vm_enable_cap(vm, KVM_CAP_MSR_PLATFORM_INFO, false);
-	vcpu_run(vm, VCPU_ID);
+	vm_enable_cap(vcpu->vm, KVM_CAP_MSR_PLATFORM_INFO, false);
+	vcpu_run(vcpu->vm, vcpu->id);
 	TEST_ASSERT(run->exit_reason == KVM_EXIT_SHUTDOWN,
 			"Exit_reason other than KVM_EXIT_SHUTDOWN: %u (%s)\n",
 			run->exit_reason,
@@ -69,6 +68,7 @@ static void test_msr_platform_info_disabled(struct kvm_vm *vm)
 
 int main(int argc, char *argv[])
 {
+	struct kvm_vcpu *vcpu;
 	struct kvm_vm *vm;
 	int rv;
 	uint64_t msr_platform_info;
@@ -82,14 +82,14 @@ int main(int argc, char *argv[])
 		exit(KSFT_SKIP);
 	}
 
-	vm = vm_create_default(VCPU_ID, 0, guest_code);
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
 
-	msr_platform_info = vcpu_get_msr(vm, VCPU_ID, MSR_PLATFORM_INFO);
-	vcpu_set_msr(vm, VCPU_ID, MSR_PLATFORM_INFO,
+	msr_platform_info = vcpu_get_msr(vm, vcpu->id, MSR_PLATFORM_INFO);
+	vcpu_set_msr(vm, vcpu->id, MSR_PLATFORM_INFO,
 		msr_platform_info | MSR_PLATFORM_INFO_MAX_TURBO_RATIO);
-	test_msr_platform_info_enabled(vm);
-	test_msr_platform_info_disabled(vm);
-	vcpu_set_msr(vm, VCPU_ID, MSR_PLATFORM_INFO, msr_platform_info);
+	test_msr_platform_info_enabled(vcpu);
+	test_msr_platform_info_disabled(vcpu);
+	vcpu_set_msr(vm, vcpu->id, MSR_PLATFORM_INFO, msr_platform_info);
 
 	kvm_vm_free(vm);