EFI_STATUS efi_main(EFI_HANDLE Ximage, EFI_SYSTEM_TABLE* Xsystab)
{
EFI_HANDLE handles[128];
EFI_BLOCK_IO *blkio;
UINTN i, nparts = sizeof(handles), cols, rows, max_dim, best_mode;
EFI_STATUS status;
EFI_DEVICE_PATH *devpath;
EFI_BOOT_SERVICES *BS;
EFI_CONSOLE_CONTROL_PROTOCOL *ConsoleControl = NULL;
SIMPLE_TEXT_OUTPUT_INTERFACE *conout = NULL;
const char *path = _PATH_LOADER;
systab = Xsystab;
image = Ximage;
BS = systab->BootServices;
status = BS->LocateProtocol(&ConsoleControlGUID, NULL,
(VOID **)&ConsoleControl);
if (status == EFI_SUCCESS)
(void)ConsoleControl->SetMode(ConsoleControl,
EfiConsoleControlScreenText);
/*
* Reset the console and find the best text mode.
*/
conout = systab->ConOut;
conout->Reset(conout, TRUE);
max_dim = best_mode = 0;
for (i = 0; ; i++) {
status = conout->QueryMode(conout, i, &cols, &rows);
if (EFI_ERROR(status))
break;
if (cols * rows > max_dim) {
max_dim = cols * rows;
best_mode = i;
}
}
if (max_dim > 0)
conout->SetMode(conout, best_mode);
conout->EnableCursor(conout, TRUE);
conout->ClearScreen(conout);
printf("\n"
">> FreeBSD EFI boot block\n");
printf(" Loader path: %s\n", path);
status = systab->BootServices->LocateHandle(ByProtocol,
&BlockIoProtocolGUID, NULL, &nparts, handles);
nparts /= sizeof(handles[0]);
for (i = 0; i < nparts; i++) {
status = systab->BootServices->HandleProtocol(handles[i],
&DevicePathGUID, (void **)&devpath);
if (EFI_ERROR(status))
continue;
while (!IsDevicePathEnd(NextDevicePathNode(devpath)))
devpath = NextDevicePathNode(devpath);
status = systab->BootServices->HandleProtocol(handles[i],
&BlockIoProtocolGUID, (void **)&blkio);
if (EFI_ERROR(status))
continue;
if (!blkio->Media->LogicalPartition)
continue;
if (domount(devpath, blkio, 1) >= 0)
break;
}
if (i == nparts)
panic("No bootable partition found");
bootdevhandle = handles[i];
load(path);
panic("Load failed");
return EFI_SUCCESS;
}
