>>> 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, 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. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
