Re: [Qemu-devel] [PATCH V3] rtc: fix a infinite loop in windowsvmstartup

2017-07-26 Thread Paolo Bonzini
On 26/07/2017 03:28, peng.h...@zte.com.cn wrote: > > > when the problem happens , windows kernel is checking whether REG_A_UIP is > changing after periodic timer has stopped. windows kernel access REG_A > according to INB instrunction and it will spend several microseconds because > of VM_EXIT.

Re: [Qemu-devel] [PATCH V3] rtc: fix a infinite loop in windowsvmstartup

2017-07-25 Thread peng.hao2
>On 25/07/2017 11:29, peng.h...@zte.com.cn wrote: >>>On 25/07/2017 06:14, peng.h...@zte.com.cn wrote: >> > On 24/07/2017 20:35, Peng Hao wrote: >> When a windows vm starts, periodic timer of rtc will stop several times. >> windows kernel will check whether REG_A_UIP i