Ingo Molnar wrote: > * Avi Kivity <[EMAIL PROTECTED]> wrote: > > >> Avi Kivity wrote: >> >>> Testing shows wrmsr and rdtsc function normally. >>> >>> I'll try pinning the vcpus to cpus and see if that helps. >>> >>> >> It does. >> > > do we let the guest read the physical CPU's TSC? That would be trouble. > >
vmx (and svm) allow us to add an offset to the physical tsc. We set it on startup to -tsc (so that an rdtsc on boot would return 0), and massage it on vcpu migration so that guest rdtsc is monotonic. The net effect is that tsc on a vcpu can experience large forward jumps and changes in rate, but no negative jumps. -- error compiling committee.c: too many arguments to function ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
