vmx_tsc_adjust_test fails with: IA32_TSC_ADJUST is -4294969448 (-1 * TSC_ADJUST_VALUE + -2152). IA32_TSC_ADJUST is -4294969448 (-1 * TSC_ADJUST_VALUE + -2152). IA32_TSC_ADJUST is 281470681738540 (65534 * TSC_ADJUST_VALUE + 4294962476). ==== Test Assertion Failure ==== x86_64/vmx_tsc_adjust_test.c:153: false pid=19738 tid=19738 - Interrupted system call 1 0x0000000000401192: main at vmx_tsc_adjust_test.c:153 2 0x00007fe1ef8583d4: ?? ??:0 3 0x0000000000401201: _start at ??:? Failed guest assert: (adjust <= max) The problem is that is 'tsc_val' should be u64, not u32 or the reading gets truncated.
Unified · Split
| @@ -79,7 +79,7 @@ static inline uint64_t get_desc64_base(const struct desc64 *desc) · 78 unmodified lines | |||
| 79 | static inline uint64_t rdtsc(void) | 79 | static inline uint64_t rdtsc(void) |
| 80 | { | 80 | { |
| 81 | uint32_t eax, edx; | 81 | uint32_t eax, edx; |
| 82 | uint32_t tsc_val; | 82 | uint64_t tsc_val; |
| 83 | /* | 83 | /* |
| 84 | * The lfence is to wait (on Intel CPUs) until all previous | 84 | * The lfence is to wait (on Intel CPUs) until all previous |
| 85 | * instructions have been executed. If software requires RDTSC to be | 85 | * instructions have been executed. If software requires RDTSC to be |