63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* maximum APIC ID capability tests
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*
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* Copyright (C) 2022, Intel, Inc.
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*
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* Tests for getting/setting maximum APIC ID capability
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*/
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#include "kvm_util.h"
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#define MAX_VCPU_ID 2
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int main(int argc, char *argv[])
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{
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struct kvm_vm *vm;
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int ret;
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vm = vm_create_barebones();
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/* Get KVM_CAP_MAX_VCPU_ID cap supported in KVM */
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ret = vm_check_cap(vm, KVM_CAP_MAX_VCPU_ID);
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/* Try to set KVM_CAP_MAX_VCPU_ID beyond KVM cap */
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ret = __vm_enable_cap(vm, KVM_CAP_MAX_VCPU_ID, ret + 1);
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TEST_ASSERT(ret < 0,
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"Setting KVM_CAP_MAX_VCPU_ID beyond KVM cap should fail");
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/* Test BOOT_CPU_ID interaction (MAX_VCPU_ID cannot be lower) */
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if (kvm_has_cap(KVM_CAP_SET_BOOT_CPU_ID)) {
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vm_ioctl(vm, KVM_SET_BOOT_CPU_ID, (void *)MAX_VCPU_ID);
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/* Try setting KVM_CAP_MAX_VCPU_ID below BOOT_CPU_ID */
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ret = __vm_enable_cap(vm, KVM_CAP_MAX_VCPU_ID, MAX_VCPU_ID - 1);
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TEST_ASSERT(ret < 0,
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"Setting KVM_CAP_MAX_VCPU_ID below BOOT_CPU_ID should fail");
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}
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/* Set KVM_CAP_MAX_VCPU_ID */
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vm_enable_cap(vm, KVM_CAP_MAX_VCPU_ID, MAX_VCPU_ID);
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/* Try to set KVM_CAP_MAX_VCPU_ID again */
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ret = __vm_enable_cap(vm, KVM_CAP_MAX_VCPU_ID, MAX_VCPU_ID + 1);
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TEST_ASSERT(ret < 0,
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"Setting KVM_CAP_MAX_VCPU_ID multiple times should fail");
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/* Create vCPU with id beyond KVM_CAP_MAX_VCPU_ID cap */
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ret = __vm_ioctl(vm, KVM_CREATE_VCPU, (void *)MAX_VCPU_ID);
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TEST_ASSERT(ret < 0, "Creating vCPU with ID > MAX_VCPU_ID should fail");
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/* Create vCPU with bits 63:32 != 0, but an otherwise valid id */
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ret = __vm_ioctl(vm, KVM_CREATE_VCPU, (void *)(1L << 32));
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TEST_ASSERT(ret < 0, "Creating vCPU with ID[63:32] != 0 should fail");
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/* Create vCPU with id within bounds */
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ret = __vm_ioctl(vm, KVM_CREATE_VCPU, (void *)0);
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TEST_ASSERT(ret >= 0, "Creating vCPU with ID 0 should succeed");
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close(ret);
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kvm_vm_free(vm);
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return 0;
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}
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