1 /*
2 * Copyright (C) 2023 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "gtest/gtest.h"
18
19 #include "berberis/runtime/execute_guest.h"
20
21 #include <cstdint>
22
23 #include "berberis/guest_os_primitives/guest_map_shadow.h"
24 #include "berberis/guest_os_primitives/guest_thread_manager.h"
25 #include "berberis/guest_state/guest_addr.h"
26 #include "berberis/guest_state/guest_state.h"
27 #include "berberis/runtime/berberis.h"
28 #include "berberis/runtime_primitives/translation_cache.h"
29
30 namespace berberis {
31
32 namespace {
33
TEST(ExecuteGuestRiscv64,Basic)34 TEST(ExecuteGuestRiscv64, Basic) {
35 const uint32_t code[] = {
36 0x003100b3, // add x1, x2, x3
37 0x004090b3, // sll x1, x1, x4
38 0x008002ef, // jal x5, 8
39 };
40
41 InitBerberis();
42
43 GuestMapShadow::GetInstance()->SetExecutable(ToGuestAddr(&code[0]), sizeof(code));
44
45 GuestThread* thread = GetCurrentGuestThread();
46 auto& cpu_state = thread->state()->cpu;
47 cpu_state.insn_addr = ToGuestAddr(&code[0]);
48 SetXReg<2>(cpu_state, 10);
49 SetXReg<3>(cpu_state, 11);
50 SetXReg<4>(cpu_state, 1);
51 GuestAddr stop_pc = ToGuestAddr(&code[0]) + 16;
52 auto cache = TranslationCache::GetInstance();
53 cache->SetStop(stop_pc);
54 ExecuteGuest(thread->state());
55 cache->TestingClearStop(stop_pc);
56 EXPECT_EQ(GetXReg<1>(cpu_state), 42u);
57
58 GuestMapShadow::GetInstance()->ClearExecutable(ToGuestAddr(&code[0]), sizeof(code));
59 }
60
61 } // namespace
62
63 } // namespace berberis
64