On Tue, Oct 27, 2020 at 04:19:45PM -0700, Erdem Aktas wrote: > Looking at the VMWARE_VMCALL(cmd, eax, ebx, ecx, edx) definition, it > seems to me only 4 registers are required to be shared with > hypervisor. I don't know much about vmware but is not > vmware_sev_es_hcall_prepare expose more registers than needed and also > vmware_sev_es_hcall_finish might let the hypvervisor to modify > additional registers which are not used? > > Just checking if this is intentional and what I am missing here. Original patch is from Doug, maybe he can clarify what needs to be shared. I only adapted it to the call-backs. Doug? Regards, Joerg
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