mirror of
https://chromium.googlesource.com/crosvm/crosvm
synced 2024-10-24 21:23:13 +00:00
3e40b51a62
This change allows plugin to retrieve and set various VM and VCPU states: interrupt controller, PIT, LAPIC and MP state. BUG=b:76083711 TEST=cargo test -p kvm Change-Id: Ie32a67b0cd4a1f0a19ccd826a6e1c9dc25670f95 Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/986511 Reviewed-by: Zach Reizner <zachr@chromium.org>
120 lines
3.2 KiB
C
120 lines
3.2 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 <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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struct kvm_pic_state pic_state;
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ret = crosvm_get_pic_state(crosvm, false, &pic_state);
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if (ret < 0) {
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fprintf(stderr, "failed to get initial PIC1 state: %d\n", ret);
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return 1;
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}
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if (pic_state.auto_eoi) {
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fprintf(stderr, "unexpected value of auto_eoi flag\n");
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return 1;
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}
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pic_state.auto_eoi = true;
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ret = crosvm_set_pic_state(crosvm, false, &pic_state);
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if (ret < 0) {
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fprintf(stderr, "failed to update PIC1 state: %d\n", ret);
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return 1;
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}
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ret = crosvm_get_pic_state(crosvm, false, &pic_state);
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if (ret < 0) {
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fprintf(stderr, "failed to get updated PIC1 state: %d\n", ret);
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return 1;
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}
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if (!pic_state.auto_eoi) {
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fprintf(stderr, "unexpected value of auto_eoi flag after update\n");
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return 1;
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}
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// Test retrieving and setting IOAPIC state.
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struct kvm_ioapic_state ioapic_state;
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ret = crosvm_get_ioapic_state(crosvm, &ioapic_state);
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if (ret < 0) {
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fprintf(stderr, "failed to get initial PIC1 state: %d\n", ret);
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return 1;
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}
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fprintf(stderr, "IOAPIC ID: %d\n", ioapic_state.id);
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if (ioapic_state.id != 0) {
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fprintf(stderr, "unexpected value of IOAPIC ID: %d\n", ioapic_state.id);
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return 1;
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}
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ioapic_state.id = 1;
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ret = crosvm_set_ioapic_state(crosvm, &ioapic_state);
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if (ret < 0) {
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fprintf(stderr, "failed to update PIC1 state: %d\n", ret);
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return 1;
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}
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ret = crosvm_get_ioapic_state(crosvm, &ioapic_state);
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if (ret < 0) {
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fprintf(stderr, "failed to get updated PIC1 state: %d\n", ret);
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return 1;
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}
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if (ioapic_state.id != 1) {
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fprintf(stderr, "unexpected value of IOAPIC ID after update: %d\n",
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ioapic_state.id);
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return 1;
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}
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// Test retrieving and setting PIT state.
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struct kvm_pit_state2 pit_state;
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ret = crosvm_get_pit_state(crosvm, &pit_state);
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if (ret < 0) {
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fprintf(stderr, "failed to get initial PIT state: %d\n", ret);
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return 1;
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}
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if (pit_state.flags & KVM_PIT_FLAGS_HPET_LEGACY) {
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fprintf(stderr, "unexpected value of KVM_PIT_FLAGS_HPET_LEGACY flag\n");
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return 1;
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}
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pit_state.flags |= KVM_PIT_FLAGS_HPET_LEGACY;
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ret = crosvm_set_pit_state(crosvm, &pit_state);
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if (ret < 0) {
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fprintf(stderr, "failed to update PIT state: %d\n", ret);
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return 1;
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}
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ret = crosvm_get_pit_state(crosvm, &pit_state);
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if (ret < 0) {
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fprintf(stderr, "failed to get updated PIT state: %d\n", ret);
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return 1;
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}
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if (!(pit_state.flags & KVM_PIT_FLAGS_HPET_LEGACY)) {
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fprintf(stderr,
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"unexpected value of KVM_PIT_FLAGS_HPET_LEGACY after update\n");
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return 1;
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}
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return 0;
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}
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