mirror of
https://chromium.googlesource.com/crosvm/crosvm
synced 2024-10-25 05:35:41 +00:00
658357638c
Add crossvm plugin API to allow fetching list of supported MSRs. BUG=b:111083877 TEST=cargo test -p kvm; cargo test --features=plugin Change-Id: I178c7bc33d606bef10422faac6bb9afb3fe0a014 Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/1152229 Reviewed-by: Zach Reizner <zachr@chromium.org>
50 lines
1.2 KiB
C
50 lines
1.2 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 <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.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;
|
|
}
|
|
|
|
uint32_t msr_indices[256];
|
|
int n_entries;
|
|
ret = crosvm_get_msr_index_list(crosvm, 1, msr_indices, &n_entries);
|
|
if (ret >= 0) {
|
|
fprintf(stderr,
|
|
"expected crosvm_get_msr_index_list to fail with E2BIG\n");
|
|
return 1;
|
|
}
|
|
|
|
|
|
memset(msr_indices, 0, sizeof(msr_indices));
|
|
ret = crosvm_get_msr_index_list(crosvm, 256, msr_indices, &n_entries);
|
|
if (ret < 0) {
|
|
fprintf(stderr,
|
|
"unexpected failure of crosvm_get_msr_index_list: %d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
if (n_entries <= 1) {
|
|
fprintf(stderr,
|
|
"unexpected number of supported msr entries: %d\n",
|
|
n_entries);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|