On Wed, Jul 28, 2021 at 10:52:21AM -0400, Tianyu Lan wrote: + hv_ghcb->ghcb.protocol_version = 1; + hv_ghcb->ghcb.ghcb_usage = 1; The values set to ghcb_usage deserve some defines (here and below).
+ hv_ghcb->ghcb.protocol_version = 1; + hv_ghcb->ghcb.ghcb_usage = 1;