1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * maximum APIC ID capability tests
4 *
5 * Copyright (C) 2022, Intel, Inc.
6 *
7 * Tests for getting/setting maximum APIC ID capability
8 */
9
10#include "kvm_util.h"
11
12#define MAX_VCPU_ID	2
13
14int main(int argc, char *argv[])
15{
16	struct kvm_vm *vm;
17	int ret;
18
19	vm = vm_create_barebones();
20
21	/* Get KVM_CAP_MAX_VCPU_ID cap supported in KVM */
22	ret = vm_check_cap(vm, KVM_CAP_MAX_VCPU_ID);
23
24	/* Try to set KVM_CAP_MAX_VCPU_ID beyond KVM cap */
25	ret = __vm_enable_cap(vm, KVM_CAP_MAX_VCPU_ID, ret + 1);
26	TEST_ASSERT(ret < 0,
27		    "Setting KVM_CAP_MAX_VCPU_ID beyond KVM cap should fail");
28
29	/* Set KVM_CAP_MAX_VCPU_ID */
30	vm_enable_cap(vm, KVM_CAP_MAX_VCPU_ID, MAX_VCPU_ID);
31
32
33	/* Try to set KVM_CAP_MAX_VCPU_ID again */
34	ret = __vm_enable_cap(vm, KVM_CAP_MAX_VCPU_ID, MAX_VCPU_ID + 1);
35	TEST_ASSERT(ret < 0,
36		    "Setting KVM_CAP_MAX_VCPU_ID multiple times should fail");
37
38	/* Create vCPU with id beyond KVM_CAP_MAX_VCPU_ID cap*/
39	ret = __vm_ioctl(vm, KVM_CREATE_VCPU, (void *)MAX_VCPU_ID);
40	TEST_ASSERT(ret < 0, "Creating vCPU with ID > MAX_VCPU_ID should fail");
41
42	kvm_vm_free(vm);
43	return 0;
44}
45