On Tue, Aug 17, 2021 at 03:34:41PM -0500, Brijesh Singh wrote: > I am not seeing any strong reason to sanity check the reserved bit in the > psc_entry. The fields in the psc_entry are input from guest to the > hypervisor. The hypervisor cannot trick a guest by changing anything in the > psc_entry because guest does not read the hypervisor filled value. I am okay > with the psc_hdr because we need to read the current and end entry after the > PSC completes to determine whether it was successful and sanity checking PSC > header makes much more sense. Let me know if you are okay with it ? Ok, fair enough. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette