On 4/12/21 8:05 AM, Borislav Petkov wrote: > On Mon, Apr 12, 2021 at 07:55:01AM -0500, Brijesh Singh wrote: >> The cur_entry is updated by the hypervisor. While building the psc >> buffer the guest sets the cur_entry=0 and the end_entry point to the >> last valid entry. The cur_entry is incremented by the hypervisor after >> it successfully processes one 4K page. As per the spec, the hypervisor >> could get interrupted in middle of the page state change and cur_entry >> allows the guest to resume the page state change from the point where it >> was interrupted. > This is non-obvious and belongs in a comment above it. Otherwise it > looks weird. Sure, I will add the comment and provide reference to the GHCB section. Thanks
