mirror of
https://chromium.googlesource.com/crosvm/crosvm
synced 2024-12-25 20:45:00 +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>
119 lines
3.2 KiB
C
119 lines
3.2 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 <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;
|
|
}
|
|
|
|
struct kvm_pic_state pic_state;
|
|
ret = crosvm_get_pic_state(crosvm, false, &pic_state);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "failed to get initial PIC1 state: %d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
if (pic_state.auto_eoi) {
|
|
fprintf(stderr, "unexpected value of auto_eoi flag\n");
|
|
return 1;
|
|
}
|
|
|
|
pic_state.auto_eoi = true;
|
|
ret = crosvm_set_pic_state(crosvm, false, &pic_state);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "failed to update PIC1 state: %d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
ret = crosvm_get_pic_state(crosvm, false, &pic_state);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "failed to get updated PIC1 state: %d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
if (!pic_state.auto_eoi) {
|
|
fprintf(stderr, "unexpected value of auto_eoi flag after update\n");
|
|
return 1;
|
|
}
|
|
|
|
// Test retrieving and setting IOAPIC state.
|
|
struct kvm_ioapic_state ioapic_state;
|
|
ret = crosvm_get_ioapic_state(crosvm, &ioapic_state);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "failed to get initial PIC1 state: %d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
fprintf(stderr, "IOAPIC ID: %d\n", ioapic_state.id);
|
|
|
|
if (ioapic_state.id != 0) {
|
|
fprintf(stderr, "unexpected value of IOAPIC ID: %d\n", ioapic_state.id);
|
|
return 1;
|
|
}
|
|
|
|
ioapic_state.id = 1;
|
|
ret = crosvm_set_ioapic_state(crosvm, &ioapic_state);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "failed to update PIC1 state: %d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
ret = crosvm_get_ioapic_state(crosvm, &ioapic_state);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "failed to get updated PIC1 state: %d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
if (ioapic_state.id != 1) {
|
|
fprintf(stderr, "unexpected value of IOAPIC ID after update: %d\n",
|
|
ioapic_state.id);
|
|
return 1;
|
|
}
|
|
|
|
// Test retrieving and setting PIT state.
|
|
struct kvm_pit_state2 pit_state;
|
|
ret = crosvm_get_pit_state(crosvm, &pit_state);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "failed to get initial PIT state: %d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
if (pit_state.flags & KVM_PIT_FLAGS_HPET_LEGACY) {
|
|
fprintf(stderr, "unexpected value of KVM_PIT_FLAGS_HPET_LEGACY flag\n");
|
|
return 1;
|
|
}
|
|
|
|
pit_state.flags |= KVM_PIT_FLAGS_HPET_LEGACY;
|
|
ret = crosvm_set_pit_state(crosvm, &pit_state);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "failed to update PIT state: %d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
ret = crosvm_get_pit_state(crosvm, &pit_state);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "failed to get updated PIT state: %d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
if (!(pit_state.flags & KVM_PIT_FLAGS_HPET_LEGACY)) {
|
|
fprintf(stderr,
|
|
"unexpected value of KVM_PIT_FLAGS_HPET_LEGACY after update\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|