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/*
* Copyright 2018 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "crosvm.h"
typedef int (*crosvm_function)(struct crosvm*, uint32_t,
struct kvm_cpuid_entry2*, uint32_t*);
typedef int (*vcpu_function)(struct crosvm_vcpu*, uint32_t,
struct kvm_cpuid_entry2*, uint32_t*);
// Members of union should only differ by the pointer type of 1st arg.
union cpuid_function {
crosvm_function crosvm;
vcpu_function vcpu;
};
int test_cpuid(void* crosvm, union cpuid_function funct, const char* name) {
struct kvm_cpuid_entry2 cpuids[100];
int n_entries = 0;
int ret = funct.crosvm(crosvm, 1, cpuids, &n_entries);
if (ret >= 0) {
fprintf(stderr,
"expected %s to fail with E2BIG\n", name);
return ret;
}
ret = funct.crosvm(crosvm, 100, cpuids, &n_entries);
if (ret < 0) {
if (ret != -EINVAL) {
fprintf(stderr, "unexpected failure of %s: %d\n", name, ret);
} else {
fprintf(stderr,
"Query of %s failed with EINVAL (may be expected)\n",
name, ret);
}
return ret;
}
if (n_entries <= 1) {
fprintf(stderr,
"unexpected number of cpuid entries from %s: %d\n",
name, n_entries);
return 1;
}
return 0;
}
int main(int argc, char** argv) {
struct crosvm* crosvm = NULL;
int ret = crosvm_connect(&crosvm);
if (ret) {
fprintf(stderr, "failed to connect to crosvm: %d\n", ret);
return 1;
}
struct crosvm_vcpu* vcpu = NULL;
ret = crosvm_get_vcpu(crosvm, 0, &vcpu);
if (ret) {
fprintf(stderr, "failed to get vcpu #0: %d\n", ret);
return 1;
}
union cpuid_function funct;
funct.crosvm = crosvm_get_supported_cpuid;
if (test_cpuid(crosvm, funct, "crosvm_get_supported_cpuid")) {
return 1;
}
funct.crosvm = crosvm_get_emulated_cpuid;
if (test_cpuid(crosvm, funct, "crosvm_get_emulated_cpuid")) {
return 1;
}
ret = crosvm_start(crosvm);
if (ret) {
fprintf(stderr, "failed to start vm: %d\n", ret);
return 1;
}
struct crosvm_vcpu_event evt = {0};
ret = crosvm_vcpu_wait(vcpu, &evt);
if (ret) {
fprintf(stderr, "failed to wait for vm start: %d\n", ret);
return 1;
}
if (evt.kind != CROSVM_VCPU_EVENT_KIND_INIT) {
fprintf(stderr, "Got unexpected exit type: %d\n", evt.kind);
return 1;
}
funct.vcpu = crosvm_get_hyperv_cpuid;
ret = test_cpuid(vcpu, funct, "crosvm_get_hyperv_cpuid");
// Older kernels don't support and return EINVAL, so allow this for now.
if (ret && ret != -EINVAL) {
fprintf(stderr, "Ignoring failure of crosvm_get_hyperv_cpuid\n");
return 1;
}
return 0;
}
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