On 12/07/15 10:03, Egger, Christoph wrote: > Did you consider nested virtualization? > L1 hypervisor may have a different tsc scaling > and L2 guest again may have a different tsc scale ratio. >
Oh, I forgot this. I'll check the nested TSC scaling code (mostly about nested SVM TSC ratio, because this patch series does not expose VMX TSC scaling to L1 guest). BTW, are there any practical usage scenarios of nested TSC scaling? If any, I may also need to consider adding nested virtualization support to VMX TSC scaling. Haozhong _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
