| /* |
| * Copyright 2019 The Hafnium Authors. |
| * |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #include "vmapi/hf/call.h" |
| |
| #include "../msr.h" |
| #include "test/hftest.h" |
| |
| #define TRY_READ(REG) dlog(#REG "=%#x\n", read_msr(REG)) |
| |
| #define CHECK_READ(REG, VALUE) \ |
| do { \ |
| uintreg_t x; \ |
| x = read_msr(REG); \ |
| EXPECT_EQ(x, VALUE); \ |
| } while (0) |
| |
| /* |
| * Checks that the register can be updated. The first value is written and read |
| * back and then the second value is written and read back. The values must be |
| * different so that success means the register value has been changed and |
| * updated as expected without relying on the initial value of the register. |
| */ |
| #define CHECK_UPDATE(REG, FROM, TO) \ |
| do { \ |
| uintreg_t x; \ |
| EXPECT_NE(FROM, TO); \ |
| write_msr(REG, FROM); \ |
| x = read_msr(REG); \ |
| EXPECT_EQ(x, FROM); \ |
| write_msr(REG, TO); \ |
| x = read_msr(REG); \ |
| EXPECT_EQ(x, TO); \ |
| } while (0) |