+
+#define EFI_APPLE_SET_OS_PROTOCOL_GUID \
+ { 0xc5c5da95, 0x7d5c, 0x45e6, \
+ { 0xb2, 0xf1, 0x3f, 0xd5, 0x2b, 0xb1, 0x00, 0x77 } \
+ }
+
+typedef struct efi_apple_set_os_interface {
+ UINT64 version;
+ EFI_STATUS EFIAPI (*set_os_version) (IN CHAR8 *version);
+ EFI_STATUS EFIAPI (*set_os_vendor) (IN CHAR8 *vendor);
+} efi_apple_set_os_interface;
+
+// Function to tell the firmware that OS X is being launched. This is
+// required to work around problems on some Macs that don't fully
+// initialize some hardware (especially video displays) when third-party
+// OSes are launched in EFI mode.
+static EFI_STATUS SetAppleOSInfo() {
+// CHAR8 apple_os_version[] = "Mac OS X 10.9";
+ CHAR16 *AppleOSVersion = NULL;
+ CHAR8 *AppleOSVersion8 = NULL;
+// CHAR8 apple_os_vendor[] = "Apple Inc.";
+ EFI_STATUS Status;
+ EFI_GUID apple_set_os_guid = EFI_APPLE_SET_OS_PROTOCOL_GUID;
+ efi_apple_set_os_interface *set_os = NULL;
+
+ Status = refit_call3_wrapper(BS->LocateProtocol, &apple_set_os_guid, NULL, (VOID**) &set_os);
+
+ // Not a Mac, so ignore the call....
+ if ((Status != EFI_SUCCESS) || (!set_os)) {
+ Print(L"Not a Mac!\n");
+ PauseForKey();
+ return EFI_SUCCESS;
+ }
+
+ if ((set_os->version != 0) && GlobalConfig.SpoofOSXVersion) {
+ AppleOSVersion = StrDuplicate(L"Mac OS X");
+ MergeStrings(&AppleOSVersion, GlobalConfig.SpoofOSXVersion, ' ');
+ Print(L"Setting OS version to '%s'\n", AppleOSVersion);
+ AppleOSVersion8 = AllocateZeroPool((StrLen(AppleOSVersion) + 1) * sizeof(CHAR8));
+ UnicodeStrToAsciiStr(AppleOSVersion, AppleOSVersion8);
+ if (AppleOSVersion8) {
+ Print(L"Calling set_os_version()\n");
+ Status = refit_call1_wrapper (set_os->set_os_version, AppleOSVersion8);
+ Print(L"Returned %lx\n", Status);
+ if (EFI_ERROR(Status))
+ Print(L"ERROR! Returned %x\n", Status);
+ } else {
+ Status = EFI_OUT_OF_RESOURCES;
+ Print(L"Out of resources!\n");
+ }
+ }
+
+ if (/* (Status == EFI_SUCCESS) && */ (set_os->version == 2)) {
+ Print(L"Setting OS vendor....");
+ Status = refit_call1_wrapper (set_os->set_os_vendor, "Apple Inc.");
+ Print(L"Returned %x\n", Status);
+ }
+
+ if (Status != EFI_SUCCESS) {
+ Print(L"Unable to set firmware boot type!\n");
+ }
+
+ MyFreePool(AppleOSVersion);
+ MyFreePool(AppleOSVersion8);
+ Print(L"Returning %x\n", Status);
+ PauseForKey();
+ return (Status);
+} // EFI_STATUS SetAppleOSInfo()
+