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https://chromium.googlesource.com/crosvm/crosvm
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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>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/*
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* Copyright 2018 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include <errno.h>
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#include <stdint.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 "crosvm.h"
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int main(int argc, char** argv) {
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struct crosvm *crosvm;
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int ret = crosvm_connect(&crosvm);
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if (ret) {
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fprintf(stderr, "failed to connect to crosvm: %d\n", ret);
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return 1;
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}
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uint32_t msr_indices[256];
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int n_entries;
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ret = crosvm_get_msr_index_list(crosvm, 1, msr_indices, &n_entries);
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if (ret >= 0) {
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fprintf(stderr,
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"expected crosvm_get_msr_index_list to fail with E2BIG\n");
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return 1;
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}
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memset(msr_indices, 0, sizeof(msr_indices));
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ret = crosvm_get_msr_index_list(crosvm, 256, msr_indices, &n_entries);
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if (ret < 0) {
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fprintf(stderr,
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"unexpected failure of crosvm_get_msr_index_list: %d\n", ret);
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return 1;
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}
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if (n_entries <= 1) {
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fprintf(stderr,
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"unexpected number of supported msr entries: %d\n",
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n_entries);
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return 1;
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}
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return 0;
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}
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