RDTSCP is introduced in Nehalem processor on Intel platform. Like RDTSC, RDTSCP will return the TSC value, besides, it will return the low 32bit of TSC_AUX MSR. Currently Linux kernel will write (node_id << 12 | process_id) into that MSR, so that when guest execs RDTSCP, it will also get processor Information. 01/02: pvrdtscp logic modification. 02/02: Add HVM VMX RDTSCP support. Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel