return VmgExit (Ghcb, SVM_EXIT_WBINVD, 0, 0);\r
}\r
\r
+/**\r
+ Handle a VMMCALL event.\r
+\r
+ Use the VMGEXIT instruction to handle a VMMCALL event.\r
+\r
+ @param[in, out] Ghcb Pointer to the Guest-Hypervisor Communication\r
+ Block\r
+ @param[in, out] Regs x64 processor context\r
+ @param[in] InstructionData Instruction parsing context\r
+\r
+ @retval 0 Event handled successfully\r
+ @return New exception value to propagate\r
+\r
+**/\r
+STATIC\r
+UINT64\r
+VmmCallExit (\r
+ IN OUT GHCB *Ghcb,\r
+ IN OUT EFI_SYSTEM_CONTEXT_X64 *Regs,\r
+ IN SEV_ES_INSTRUCTION_DATA *InstructionData\r
+ )\r
+{\r
+ UINT64 Status;\r
+\r
+ DecodeModRm (Regs, InstructionData);\r
+\r
+ Ghcb->SaveArea.Rax = Regs->Rax;\r
+ GhcbSetRegValid (Ghcb, GhcbRax);\r
+ Ghcb->SaveArea.Cpl = (UINT8) (Regs->Cs & 0x3);\r
+ GhcbSetRegValid (Ghcb, GhcbCpl);\r
+\r
+ Status = VmgExit (Ghcb, SVM_EXIT_VMMCALL, 0, 0);\r
+ if (Status != 0) {\r
+ return Status;\r
+ }\r
+\r
+ if (!GhcbIsRegValid (Ghcb, GhcbRax)) {\r
+ return UnsupportedExit (Ghcb, Regs, InstructionData);\r
+ }\r
+ Regs->Rax = Ghcb->SaveArea.Rax;\r
+\r
+ return 0;\r
+}\r
+\r
/**\r
Handle an MSR event.\r
\r
NaeExit = MsrExit;\r
break;\r
\r
+ case SVM_EXIT_VMMCALL:\r
+ NaeExit = VmmCallExit;\r
+ break;\r
+\r
case SVM_EXIT_WBINVD:\r
NaeExit = WbinvdExit;\r
break;\r