Re: [Xen-devel] [Question] About the behavior of HLT in VMX guest mode

2017-03-13 Thread Longpeng (Mike)
Hi Jan, On 2017/3/13 19:38, Jan Beulich wrote: On 13.03.17 at 06:12, 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

Re: [Xen-devel] [Question] About the behavior of HLT in VMX guest mode

2017-03-13 Thread Jan Beulich
>>> On 13.03.17 at 06:12, 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 >

[Xen-devel] [Question] About the behavior of HLT in VMX guest mode

2017-03-13 Thread Longpeng (Mike)
Hi guys, 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

[Xen-devel] [Question] About the behavior of HLT in VMX guest mode

2017-03-12 Thread Longpeng (Mike)
Hi guys, 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