Hi,
On Thu, Jul 12, 2018 at 10:00:57AM +0800, Wanpeng Li wrote:
> From: Peng Hao
>
> Windows I/O, such as the real-time clock. The address register (port
> 0x70 in the RTC case) can use coalesced I/O, cutting the number of
> userspace exits by half when reading or writing the RTC.
>
> Guest acc
From: Peng Hao
Windows I/O, such as the real-time clock. The address register (port
0x70 in the RTC case) can use coalesced I/O, cutting the number of
userspace exits by half when reading or writing the RTC.
Guest access rtc like this: write register index to 0x70, then write or
read data from
