Re: [PATCH 1/2] riscv-platform-spec: Real-time Clock to server extension
Heinrich Schuchardt <xypron.glpk@...> 於 2021年6月28日 週一 下午4:32寫道：
On 6/28/21 8:39 AM, Abner Chang wrote:
On the server platform, RTC doesn't work alone. It incorporates with BMC to get the time information because only BMC is alive even when the system is powered off. The system only syncs up the time settings from BMC when every time the system boots. GetTime function is used by the firmware or the pre-OS EFI applications. SetTIme is used when the firmware sync up the time with BMC or the server deployment. RTC is the media to keep the time information, how to use RTC is implementation-specific.