| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* |
| * End-to-end test to ensure that mapping of vsoc regions works on the guest. |
| */ |
| |
| #include "guest/vsoc/lib/e2e_test_common.h" |
| #include "common/vsoc/lib/e2e_test_region_view.h" |
| |
| #include <android-base/logging.h> |
| #include <gtest/gtest.h> |
| |
| template <typename View> |
| void DeathTestView() { |
| disable_tombstones(); |
| // View::GetInstance should never return. |
| EXPECT_FALSE(!!View::GetInstance()); |
| } |
| |
| // Here is a summary of the two regions interrupt and write test: |
| // 1. Write our strings to the first region |
| // 2. Ensure that our peer hasn't signalled the second region. That would |
| // indicate that it didn't wait for our interrupt. |
| // 3. Send the interrupt on the first region |
| // 4. Wait for our peer's interrupt on the first region |
| // 5. Confirm that we can see our peer's writes in the first region |
| // 6. Initialize our strings in the second region |
| // 7. Send an interrupt on the second region to our peer |
| // 8. Wait for our peer's interrupt on the second region |
| // 9. Confirm that we can see our peer's writes in the second region |
| // 10. Repeat the process for signaling. |
| // 11. Confirm that no interrupt is pending in the first region |
| // 12. Confirm that no interrupt is pending in the second region |
| |
| template <typename View> |
| void SetGuestStrings(View* in) { |
| size_t num_data = in->string_size(); |
| EXPECT_LE(2U, num_data); |
| for (size_t i = 0; i < num_data; ++i) { |
| EXPECT_TRUE(!in->guest_string(i)[0] || |
| !strcmp(in->guest_string(i), View::Layout::guest_pattern)); |
| in->set_guest_string(i, View::Layout::guest_pattern); |
| EXPECT_STREQ(in->guest_string(i), View::Layout::guest_pattern); |
| } |
| } |
| |
| template <typename View> |
| void CheckPeerStrings(View* in) { |
| size_t num_data = in->string_size(); |
| EXPECT_LE(2U, num_data); |
| for (size_t i = 0; i < num_data; ++i) { |
| EXPECT_STREQ(View::Layout::host_pattern, in->host_string(i)); |
| } |
| } |
| |
| TEST(RegionTest, BasicPeerTests) { |
| auto primary = vsoc::E2EPrimaryRegionView::GetInstance(); |
| auto secondary = vsoc::E2ESecondaryRegionView::GetInstance(); |
| ASSERT_TRUE(!!primary); |
| ASSERT_TRUE(!!secondary); |
| LOG(INFO) << "Regions are open"; |
| SetGuestStrings(primary); |
| LOG(INFO) << "Primary guest strings are set"; |
| EXPECT_FALSE(secondary->HasIncomingInterrupt()); |
| LOG(INFO) << "Verified no early second interrupt"; |
| EXPECT_TRUE(primary->MaybeInterruptPeer()); |
| LOG(INFO) << "Interrupt sent. Waiting for first interrupt from peer"; |
| primary->WaitForInterrupt(); |
| LOG(INFO) << "First interrupt received"; |
| CheckPeerStrings(primary); |
| LOG(INFO) << "Verified peer's primary strings"; |
| SetGuestStrings(secondary); |
| LOG(INFO) << "Secondary guest strings are set"; |
| EXPECT_TRUE(secondary->MaybeInterruptPeer()); |
| LOG(INFO) << "Second interrupt sent"; |
| secondary->WaitForInterrupt(); |
| LOG(INFO) << "Second interrupt received"; |
| CheckPeerStrings(secondary); |
| LOG(INFO) << "Verified peer's secondary strings"; |
| |
| // Test signals |
| EXPECT_FALSE(secondary->HasIncomingInterrupt()); |
| LOG(INFO) << "Verified no early second signal"; |
| primary->SendSignal(vsoc::layout::Sides::Peer, |
| &primary->data()->guest_to_host_signal); |
| LOG(INFO) << "Signal sent. Waiting for first signal from peer"; |
| primary->WaitForInterrupt(); |
| int count = 0; // counts the number of signals received. |
| primary->ProcessSignalsFromPeer( |
| [&primary, &count](uint32_t offset) { |
| ++count; |
| EXPECT_TRUE(offset == primary->host_to_guest_signal_offset()); |
| }); |
| EXPECT_TRUE(count == 1); |
| LOG(INFO) << "Signal received on primary region"; |
| secondary->SendSignal(vsoc::layout::Sides::Peer, |
| &secondary->data()->guest_to_host_signal); |
| LOG(INFO) << "Signal sent. Waiting for second signal from peer"; |
| secondary->WaitForInterrupt(); |
| count = 0; |
| secondary->ProcessSignalsFromPeer( |
| [&secondary, &count](uint32_t offset) { |
| ++count; |
| EXPECT_TRUE(offset == secondary->host_to_guest_signal_offset()); |
| }); |
| EXPECT_TRUE(count == 1); |
| LOG(INFO) << "Signal received on secondary region"; |
| |
| EXPECT_FALSE(primary->HasIncomingInterrupt()); |
| EXPECT_FALSE(secondary->HasIncomingInterrupt()); |
| LOG(INFO) << "PASS: BasicPeerTests"; |
| } |
| |
| TEST(RegionTest, MissingRegionDeathTest) { |
| // EXPECT_DEATH creates a child for the test, so we do it out here. |
| // DeathTestGuestRegion will actually do the deadly call after ensuring |
| // that we don't create an unwanted tombstone. |
| EXPECT_EXIT(DeathTestView<vsoc::E2EUnfindableRegionView>(), |
| testing::ExitedWithCode(2), |
| ".*" DEATH_TEST_MESSAGE ".*"); |
| } |
| |
| int main(int argc, char** argv) { |
| android::base::InitLogging(argv); |
| testing::InitGoogleTest(&argc, argv); |
| int rval = RUN_ALL_TESTS(); |
| if (!rval) { |
| auto region = vsoc::E2EPrimaryRegionView::GetInstance(); |
| region->guest_status(vsoc::layout::e2e_test::E2E_MEMORY_FILLED); |
| LOG(INFO) << "stage_1_guest_region_e2e_tests PASSED"; |
| } else { |
| LOG(ERROR) << "stage_1_guest_region_e2e_tests FAILED"; |
| } |
| return rval; |
| } |