diff options
Diffstat (limited to 'dev/Kernel/HALKit/AMD64/Processor.h')
| -rw-r--r-- | dev/Kernel/HALKit/AMD64/Processor.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/dev/Kernel/HALKit/AMD64/Processor.h b/dev/Kernel/HALKit/AMD64/Processor.h index acdf7e42..623c8245 100644 --- a/dev/Kernel/HALKit/AMD64/Processor.h +++ b/dev/Kernel/HALKit/AMD64/Processor.h @@ -233,14 +233,16 @@ namespace Kernel::HAL /// @param lo low byte /// @param hi high byte /***********************************************************************************/ - inline Void hal_get_msr(UInt32 msr, UInt32* lo, UInt32* hi) noexcept + inline UInt32 hal_get_msr(UInt32 msr, UInt32* lo, UInt32* hi) noexcept { if (!lo || !hi) - return; + return 0; asm volatile("rdmsr" : "=a"(*lo), "=d"(*hi) : "c"(msr)); + + return *lo + *hi; } /// @brief Set Model-specific register. |