mirror of
https://chromium.googlesource.com/crosvm/crosvm
synced 2024-12-25 20:45:00 +00:00
dadb7625ea
The guest may need to check for KVM extensions before blindly using them. TEST=cargo test --features plugin; cargo test -p kvm; ./build_test BUG=chromium:800626 Change-Id: If87b928753cd71adeabac4fc7732c3fce7265834 Reviewed-on: https://chromium-review.googlesource.com/906008 Commit-Ready: Zach Reizner <zachr@chromium.org> Tested-by: Zach Reizner <zachr@chromium.org> Reviewed-by: Dylan Reid <dgreid@chromium.org>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*
|
|
* 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 <fcntl.h>
|
|
#include <linux/memfd.h>
|
|
#include <pthread.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/syscall.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
#include "crosvm.h"
|
|
|
|
int main(int argc, char** argv) {
|
|
struct crosvm *crosvm;
|
|
int ret = crosvm_connect(&crosvm);
|
|
if (ret) {
|
|
fprintf(stderr, "failed to connect to crosvm: %d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
bool supported;
|
|
ret = crosvm_check_extension(crosvm, KVM_CAP_IRQCHIP, &supported);
|
|
if (ret) {
|
|
fprintf(stderr, "failed to check for KVM extension: %d\n", ret);
|
|
return 1;
|
|
}
|
|
if (!supported) {
|
|
fprintf(stderr, "expected KVM extension to be supported\n");
|
|
return 1;
|
|
}
|
|
|
|
// Assume s390 extensions aren't supported because we shouldn't be running on one.
|
|
ret = crosvm_check_extension(crosvm, KVM_CAP_S390_PSW, &supported);
|
|
if (ret) {
|
|
fprintf(stderr, "failed to check for KVM extension: %d\n", ret);
|
|
return 1;
|
|
}
|
|
if (supported) {
|
|
fprintf(stderr, "unexpected KVM extension is supported\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|