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a7e34644d7
add RTC emulation in hypervisor doc and add entry in hld-emulated-devices Signed-off-by: Gao Junhao <junhao.gao@intel.com>
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411 B
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10 lines
411 B
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.. _rtc-virt-hld:
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RTC Virtualization
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##################
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This document describes the RTC virtualization implementation in
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ACRN device model.
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vRTC is a read-only RTC for For pre-launched VM, Service OS and post-launched RT VM. It supports RW for CMOS address port 0x70 and RO for CMOS data port 0x71. Reads to CMOS RAM offsets are fetched by reading CMOS h/w directly and writes to CMOS offsets are discarded.
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