On 10/08/2015 11:42, Christoffer Dall wrote: > > Thanks for the reply. > > On this note, is there an easy mechanism on x86 to obtain a TSC which is > synchronized across PCPUs and between the host and the guest? > > We can use the physical arch timer counter on arm64, but I'm not sure if > there's something similar on x86? Yes, you just use the TSC. :) However, you first have to check that the TSC is consistent across CPUs. On older machines it's not, but the kernel can detect it. Paolo > This is useful to trace the flow of events over an SMP system in detail. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
