KVM: selftests: Convert debug-exceptions away from VCPU_ID

Convert debug-exceptions 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/aarch64/debug-exceptions.c

@@ -3,8 +3,6 @@
 #include <kvm_util.h>
 #include <processor.h>
 
-#define VCPU_ID 0
-
 #define MDSCR_KDE	(1 << 13)
 #define MDSCR_MDE	(1 << 15)
 #define MDSCR_SS	(1 << 0)
@@ -240,27 +238,28 @@ static void guest_svc_handler(struct ex_regs *regs)
 	svc_addr = regs->pc;
 }
 
-static int debug_version(struct kvm_vm *vm)
+static int debug_version(struct kvm_vcpu *vcpu)
 {
 	uint64_t id_aa64dfr0;
 
-	get_reg(vm, VCPU_ID, KVM_ARM64_SYS_REG(SYS_ID_AA64DFR0_EL1), &id_aa64dfr0);
+	get_reg(vcpu->vm, vcpu->id, KVM_ARM64_SYS_REG(SYS_ID_AA64DFR0_EL1), &id_aa64dfr0);
 	return id_aa64dfr0 & 0xf;
 }
 
 int main(int argc, char *argv[])
 {
+	struct kvm_vcpu *vcpu;
 	struct kvm_vm *vm;
 	struct ucall uc;
 	int stage;
 
-	vm = vm_create_default(VCPU_ID, 0, guest_code);
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
 	ucall_init(vm, NULL);
 
 	vm_init_descriptor_tables(vm);
-	vcpu_init_descriptor_tables(vm, VCPU_ID);
+	vcpu_init_descriptor_tables(vm, vcpu->id);
 
-	if (debug_version(vm) < 6) {
+	if (debug_version(vcpu) < 6) {
 		print_skip("Armv8 debug architecture not supported.");
 		kvm_vm_free(vm);
 		exit(KSFT_SKIP);
@@ -278,9 +277,9 @@ int main(int argc, char *argv[])
 				ESR_EC_SVC64, guest_svc_handler);
 
 	for (stage = 0; stage < 11; stage++) {
-		vcpu_run(vm, VCPU_ID);
+		vcpu_run(vm, vcpu->id);
 
-		switch (get_ucall(vm, VCPU_ID, &uc)) {
+		switch (get_ucall(vm, vcpu->id, &uc)) {
 		case UCALL_SYNC:
 			TEST_ASSERT(uc.args[1] == stage,
 				"Stage %d: Unexpected sync ucall, got %lx",