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This is the initial implementation for KVM selftests on s390. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABAgAGBQJdGfsWAAoJEBF7vIC1phx8MLAP+wWRG6ZBr4K0GJMRVWnudfbD Bk/j2s4Oi8V/B8Px5/aa5BEhCzrQVWHxdCGPSdViV3Z8V2HWY0bDOl/Ul2+yaKrx IgnQkEJZjLlN8/RZKX9F28MnST05b3EqXhzt7+vSUMcmnWFVFzErWQW9JT1LQVDE x/pVlGW/SpLEEdDR22ZEAqQQLuSid+I0RpvWSe7wRTVd0IlIN0X8q70f2yU7Lxpw oAVinmZ1fhu6WF1TMPbpL9GJtKMX5I0XqYnw8x9fFGkSWU7NNHzrvnv6ui7jwagG tRqKE6vWeCVr+0PDarDOXTM6o5PfskOHXNENAKuCCJk4oGKQM2GTYJ15t5IyTDBl qTIR6BccJ8PDudm7Mir6jyFyu89t6C/lsYGvbar4p44GouO4Z5mowUkpLmAMSJgO i+gFCeKR9cj2Zz15cjsD2CrsQI6EPa9t3O8T4hsLuSOxRU+oc2plegRZ7i7hLNnw 075RGRv/hgzC9bUjOtJ3u7Rqny8TSGgNIedg3CujOD2TLYvrCT9CmcibTFlrQpvk UBPUNSN+TIqPgvD/5fnEG809EKS0yiqu+8Ihm4b5W6zx8cP3cSoXEcaBuQXCLbQ5 XVDb4Yji0tMfxP75uCofEE/R2NMvHfkJ72zGvuXv1nSkXSPViQGkmXrWE0ie87hm qyilYkncFh3wd6usbhBW =STwX -----END PGP SIGNATURE----- Merge tag 'kvm-s390-next-5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390: add kselftests This is the initial implementation for KVM selftests on s390.
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* kvm_create_max_vcpus
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*
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* Copyright (C) 2019, Google LLC.
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*
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* Test for KVM_CAP_MAX_VCPUS and KVM_CAP_MAX_VCPU_ID.
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*/
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#define _GNU_SOURCE /* for program_invocation_short_name */
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "test_util.h"
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#include "kvm_util.h"
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#include "asm/kvm.h"
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#include "linux/kvm.h"
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void test_vcpu_creation(int first_vcpu_id, int num_vcpus)
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{
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struct kvm_vm *vm;
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int i;
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printf("Testing creating %d vCPUs, with IDs %d...%d.\n",
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num_vcpus, first_vcpu_id, first_vcpu_id + num_vcpus - 1);
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vm = vm_create(VM_MODE_DEFAULT, DEFAULT_GUEST_PHY_PAGES, O_RDWR);
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for (i = 0; i < num_vcpus; i++) {
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int vcpu_id = first_vcpu_id + i;
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/* This asserts that the vCPU was created. */
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vm_vcpu_add(vm, vcpu_id);
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}
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kvm_vm_free(vm);
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}
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int main(int argc, char *argv[])
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{
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int kvm_max_vcpu_id = kvm_check_cap(KVM_CAP_MAX_VCPU_ID);
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int kvm_max_vcpus = kvm_check_cap(KVM_CAP_MAX_VCPUS);
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printf("KVM_CAP_MAX_VCPU_ID: %d\n", kvm_max_vcpu_id);
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printf("KVM_CAP_MAX_VCPUS: %d\n", kvm_max_vcpus);
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/*
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* Upstream KVM prior to 4.8 does not support KVM_CAP_MAX_VCPU_ID.
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* Userspace is supposed to use KVM_CAP_MAX_VCPUS as the maximum ID
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* in this case.
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*/
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if (!kvm_max_vcpu_id)
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kvm_max_vcpu_id = kvm_max_vcpus;
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TEST_ASSERT(kvm_max_vcpu_id >= kvm_max_vcpus,
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"KVM_MAX_VCPU_ID (%d) must be at least as large as KVM_MAX_VCPUS (%d).",
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kvm_max_vcpu_id, kvm_max_vcpus);
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test_vcpu_creation(0, kvm_max_vcpus);
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if (kvm_max_vcpu_id > kvm_max_vcpus)
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test_vcpu_creation(
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kvm_max_vcpu_id - kvm_max_vcpus, kvm_max_vcpus);
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return 0;
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}
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