Hi Jan, On 2017/3/13 19:38, Jan Beulich wrote:
>>>> On 13.03.17 at 06:12, <longpe...@huawei.com> wrote: >> I'm confusing about the behavior of HLT instruction in VMX guest mode. >> >> I set "hlt exiting" bit to 0 in VMCS, and the vcpu didn't vmexit when execute >> HLT as expected. However, I used powertop/cpupower on host to watch the >> pcpu's >> c-states, it seems that the pcpu didn't enter C1/C1E state during this >> period. > > I guess no-one expects a VMM to want to set this control to zero, Yep, I agree. I just do this for special purpose. > so the behavior may well be unspecified or model-specific. Neither > of which I'm in the position to comment on, so I can only defer to > the Intel guys. Thanks. :) > > Jan > > > . > -- Regards, Longpeng(Mike) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel