Yuanyuan Zhao 23177d0a1d hv: add rtcdev emulate vrtc ... Current code would read physical RTC register and return it directly to guest. This patch would read a base physical RTC time and a base physical TSC time at initialize stage. Then when guest tries to read vRTC time, ACRN HV would read the real TSC time and use the TSC offset to calculate the real RTC time. This patch only support BIN data mode and 24 hour mode. BCD data mode and 12 hour mode will add in other patch. The accuracy of clock provided by this patch is limited by TSC, and will be improved in a following patch also. Tracked-On: #7440 Signed-off-by: Yuanyuan Zhao <yuanyuan.zhao@linux.intel.com> Reviewed-by: Junjie Mao <junjie.mao@intel.com>		2022-05-12 13:20:21 +08:00
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asm	hv: add rtcdev emulate vrtc	2022-05-12 13:20:21 +08:00