| /* |
| * Copyright 2019 Google LLC |
| * |
| * 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 |
| * |
| * https://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. |
| */ |
| |
| #include <stdint.h> |
| |
| #include "hf/arch/std.h" |
| |
| #include "vmapi/hf/call.h" |
| |
| #include "hftest.h" |
| #include "primary_with_secondary.h" |
| |
| /** |
| * Send a message to the interruptible VM, which will interrupt itself to send a |
| * response back. |
| */ |
| TEST(interrupts, interrupt_self) |
| { |
| const char message[] = "Ping"; |
| const char expected_response[] = "Got IRQ 05."; |
| struct hf_vcpu_run_return run_res; |
| struct mailbox_buffers mb = set_up_mailbox(); |
| |
| SERVICE_SELECT(SERVICE_VM0, "interruptible", mb.send); |
| |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_WAIT_FOR_INTERRUPT); |
| |
| /* Set the message, echo it and wait for a response. */ |
| memcpy(mb.send, message, sizeof(message)); |
| EXPECT_EQ(hf_mailbox_send(SERVICE_VM0, sizeof(message), false), 0); |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_MESSAGE); |
| EXPECT_EQ(run_res.message.size, sizeof(expected_response)); |
| EXPECT_EQ(memcmp(mb.recv, expected_response, sizeof(expected_response)), |
| 0); |
| EXPECT_EQ(hf_mailbox_clear(), 0); |
| } |
| |
| /** |
| * Inject an interrupt to the interrupt VM, which will send a message back. |
| * Repeat this twice to make sure it doesn't get into a bad state after the |
| * first one. |
| */ |
| TEST(interrupts, inject_interrupt_twice) |
| { |
| const char expected_response[] = "Got IRQ 07."; |
| struct hf_vcpu_run_return run_res; |
| struct mailbox_buffers mb = set_up_mailbox(); |
| |
| SERVICE_SELECT(SERVICE_VM0, "interruptible", mb.send); |
| |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_WAIT_FOR_INTERRUPT); |
| |
| /* Inject the interrupt and wait for a message. */ |
| hf_interrupt_inject(SERVICE_VM0, 0, EXTERNAL_INTERRUPT_ID_A); |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_MESSAGE); |
| EXPECT_EQ(run_res.message.size, sizeof(expected_response)); |
| EXPECT_EQ(memcmp(mb.recv, expected_response, sizeof(expected_response)), |
| 0); |
| EXPECT_EQ(hf_mailbox_clear(), 0); |
| |
| /* Inject the interrupt again, and wait for the same message. */ |
| hf_interrupt_inject(SERVICE_VM0, 0, EXTERNAL_INTERRUPT_ID_A); |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_MESSAGE); |
| EXPECT_EQ(run_res.message.size, sizeof(expected_response)); |
| EXPECT_EQ(memcmp(mb.recv, expected_response, sizeof(expected_response)), |
| 0); |
| EXPECT_EQ(hf_mailbox_clear(), 0); |
| } |
| |
| /** |
| * Inject two different interrupts to the interrupt VM, which will send a |
| * message back each time. |
| */ |
| TEST(interrupts, inject_two_interrupts) |
| { |
| const char expected_response[] = "Got IRQ 07."; |
| const char expected_response_2[] = "Got IRQ 08."; |
| struct hf_vcpu_run_return run_res; |
| struct mailbox_buffers mb = set_up_mailbox(); |
| |
| SERVICE_SELECT(SERVICE_VM0, "interruptible", mb.send); |
| |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_WAIT_FOR_INTERRUPT); |
| |
| /* Inject the interrupt and wait for a message. */ |
| hf_interrupt_inject(SERVICE_VM0, 0, EXTERNAL_INTERRUPT_ID_A); |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_MESSAGE); |
| EXPECT_EQ(run_res.message.size, sizeof(expected_response)); |
| EXPECT_EQ(memcmp(mb.recv, expected_response, sizeof(expected_response)), |
| 0); |
| EXPECT_EQ(hf_mailbox_clear(), 0); |
| |
| /* Inject a different interrupt and wait for a different message. */ |
| hf_interrupt_inject(SERVICE_VM0, 0, EXTERNAL_INTERRUPT_ID_B); |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_MESSAGE); |
| EXPECT_EQ(run_res.message.size, sizeof(expected_response_2)); |
| EXPECT_EQ(memcmp(mb.recv, expected_response_2, |
| sizeof(expected_response_2)), |
| 0); |
| EXPECT_EQ(hf_mailbox_clear(), 0); |
| } |
| |
| /** |
| * Inject an interrupt then send a message to the interrupt VM, which will send |
| * a message back each time. This is to test that interrupt injection doesn't |
| * interfere with message reception. |
| */ |
| TEST(interrupts, inject_interrupt_message) |
| { |
| const char expected_response[] = "Got IRQ 07."; |
| const char message[] = "Ping"; |
| const char expected_response_2[] = "Got IRQ 05."; |
| struct hf_vcpu_run_return run_res; |
| struct mailbox_buffers mb = set_up_mailbox(); |
| |
| SERVICE_SELECT(SERVICE_VM0, "interruptible", mb.send); |
| |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_WAIT_FOR_INTERRUPT); |
| |
| /* Inject the interrupt and wait for a message. */ |
| hf_interrupt_inject(SERVICE_VM0, 0, EXTERNAL_INTERRUPT_ID_A); |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_MESSAGE); |
| EXPECT_EQ(run_res.message.size, sizeof(expected_response)); |
| EXPECT_EQ(memcmp(mb.recv, expected_response, sizeof(expected_response)), |
| 0); |
| EXPECT_EQ(hf_mailbox_clear(), 0); |
| |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_WAIT_FOR_INTERRUPT); |
| |
| /* Now send a message to the secondary. */ |
| memcpy(mb.send, message, sizeof(message)); |
| EXPECT_EQ(hf_mailbox_send(SERVICE_VM0, sizeof(message), false), 0); |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_MESSAGE); |
| EXPECT_EQ(run_res.message.size, sizeof(expected_response_2)); |
| EXPECT_EQ(memcmp(mb.recv, expected_response_2, |
| sizeof(expected_response_2)), |
| 0); |
| EXPECT_EQ(hf_mailbox_clear(), 0); |
| } |
| |
| /** |
| * Inject an interrupt which the target VM has not enabled, and then send a |
| * message telling it to enable that interrupt ID. It should then (and only |
| * then) send a message back. |
| */ |
| TEST(interrupts, inject_interrupt_disabled) |
| { |
| const char expected_response[] = "Got IRQ 09."; |
| const char message[] = "Enable interrupt C"; |
| struct hf_vcpu_run_return run_res; |
| struct mailbox_buffers mb = set_up_mailbox(); |
| |
| SERVICE_SELECT(SERVICE_VM0, "interruptible", mb.send); |
| |
| /* Inject the interrupt and expect not to get a message. */ |
| hf_interrupt_inject(SERVICE_VM0, 0, EXTERNAL_INTERRUPT_ID_C); |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_WAIT_FOR_INTERRUPT); |
| |
| /* |
| * Now send a message to the secondary to enable the interrupt ID, and |
| * expect the response from the interrupt we sent before. |
| */ |
| memcpy(mb.send, message, sizeof(message)); |
| EXPECT_EQ(hf_mailbox_send(SERVICE_VM0, sizeof(message), false), 0); |
| run_res = hf_vcpu_run(SERVICE_VM0, 0); |
| EXPECT_EQ(run_res.code, HF_VCPU_RUN_MESSAGE); |
| EXPECT_EQ(run_res.message.size, sizeof(expected_response)); |
| EXPECT_EQ(memcmp(mb.recv, expected_response, sizeof(expected_response)), |
| 0); |
| EXPECT_EQ(hf_mailbox_clear(), 0); |
| } |