Messages in this thread | | | Date | Wed, 28 Oct 2020 10:54:24 +0100 | From | Joerg Roedel <> | Subject | Re: [tip: x86/seves] x86/vmware: Add VMware-specific handling for VMMCALL under SEV-ES |
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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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