void initKernBootStruct( void )
{
Node *node;
int nameLen;
static int init_done = 0;
if ( !init_done )
{
bootArgs = (boot_args *)malloc(sizeof(boot_args));
bootArgsPreLion = (boot_args_pre_lion *)malloc(sizeof(boot_args_pre_lion));
bootInfo = (PrivateBootInfo_t *)malloc(sizeof(PrivateBootInfo_t));
if (bootArgs == 0 || bootInfo == 0)
stop("Couldn't allocate boot info\n");
bzero(bootArgs, sizeof(boot_args));
bzero(bootArgsPreLion, sizeof(boot_args_pre_lion));
bzero(bootInfo, sizeof(PrivateBootInfo_t));
// Get system memory map. Also update the size of the
// conventional/extended memory for backwards compatibility.
bootInfo->memoryMapCount =
getMemoryMap( bootInfo->memoryMap, kMemoryMapCountMax,
(unsigned long *) &bootInfo->convmem,
(unsigned long *) &bootInfo->extmem );
if ( bootInfo->memoryMapCount == 0 )
{
// BIOS did not provide a memory map, systems with
// discontiguous memory or unusual memory hole locations
// may have problems.
bootInfo->convmem = getConventionalMemorySize();
bootInfo->extmem = getExtendedMemorySize();
}
bootInfo->configEnd = bootInfo->config;
bootArgs->Video.v_display = VGA_TEXT_MODE;
DT__Initialize();
node = DT__FindNode("/", true);
if (node == 0) {
stop("Couldn't create root node");
}
getPlatformName(platformName);
nameLen = strlen(platformName) + 1;
DT__AddProperty(node, "compatible", nameLen, platformName);
DT__AddProperty(node, "model", nameLen, platformName);
gMemoryMapNode = DT__FindNode("/chosen/memory-map", true);
bootArgs->Version = kBootArgsVersion;
bootArgs->Revision = kBootArgsRevision;
bootArgsPreLion->Version = kBootArgsPreLionVersion;
bootArgsPreLion->Revision = kBootArgsPreLionRevision;
init_done = 1;
}
}
// Notify OS X that a ramdisk has been setup. XNU will attach this to /dev/md0
void md0Ramdisk()
{
RAMDiskParam ramdiskPtr;
char filename[512];
const char* override_filename = 0;
int fh = -1;
int len;
if (getValueForKey(kMD0ImageKey, &override_filename, &len, &bootInfo->bootConfig))
{
// Use user specified md0 file
sprintf(filename, "%s", override_filename);
fh = open(filename, 0);
if (fh < 0)
{
sprintf(filename, "rd(0,0)/Extra/Postboot.img");
fh = open(filename, 0);
if (fh < 0)
{
sprintf(filename, "bt(0,0)/Extra/Postboot.img"); // Check /Extra if not in rd(0,0)
fh = open(filename, 0);
}
}
}
if (fh >= 0)
{
verbose("Enabling ramdisk %s\n", filename);
ramdiskPtr.size = file_size(fh);
ramdiskPtr.base = AllocateKernelMemory(ramdiskPtr.size);
if (ramdiskPtr.size && ramdiskPtr.base)
{
// Read new ramdisk image contents in kernel memory.
if (read(fh, (char*) ramdiskPtr.base, ramdiskPtr.size) == ramdiskPtr.size)
{
AllocateMemoryRange("RAMDisk", ramdiskPtr.base, ramdiskPtr.size, kBootDriverTypeInvalid);
Node* node = DT__FindNode("/chosen/memory-map", false);
if (node != NULL)
{
DT__AddProperty(node, "RAMDisk", sizeof(RAMDiskParam), (void*)&ramdiskPtr);
}
else
{
verbose("Unable to notify Mac OS X of the ramdisk %s.\n", filename);
}
}
else
{
verbose("Unable to read md0 image %s.\n", filename);
}
}
else
{
verbose("md0 image %s is empty.\n", filename);
}
close(fh);
}
}
void setupEfiDeviceTree(void)
{
EFI_CHAR8* ret = 0;
EFI_CHAR16* ret16 = 0;
size_t len = 0;
Node *node;
node = DT__FindNode("/", false);
if (node == 0) stop("Couldn't get root node");
// We could also just do DT__FindNode("/efi/platform", true)
// But I think eventually we want to fill stuff in the efi node
// too so we might as well create it so we have a pointer for it too.
node = DT__AddChild(node, "efi");
if (archCpuType == CPU_TYPE_I386)
{
DT__AddProperty(node, FIRMWARE_ABI_PROP, sizeof(FIRMWARE_ABI_32_PROP_VALUE), (char*)FIRMWARE_ABI_32_PROP_VALUE);
}
else
{
DT__AddProperty(node, FIRMWARE_ABI_PROP, sizeof(FIRMWARE_ABI_64_PROP_VALUE), (char*)FIRMWARE_ABI_64_PROP_VALUE);
}
DT__AddProperty(node, FIRMWARE_REVISION_PROP, sizeof(FIRMWARE_REVISION), (EFI_UINT32*)&FIRMWARE_REVISION);
DT__AddProperty(node, FIRMWARE_VENDOR_PROP, sizeof(FIRMWARE_VENDOR), (EFI_CHAR16*)FIRMWARE_VENDOR);
// TODO: Fill in other efi properties if necessary
// Set up the /efi/runtime-services table node similar to the way a child node of configuration-table
// is set up. That is, name and table properties
Node *runtimeServicesNode = DT__AddChild(node, "runtime-services");
if (archCpuType == CPU_TYPE_I386)
{
// The value of the table property is the 32-bit physical address for the RuntimeServices table.
// Since the EFI system table already has a pointer to it, we simply use the address of that pointer
// for the pointer to the property data. Warning.. DT finalization calls free on that but we're not
// the only thing to use a non-malloc'd pointer for something in the DT
DT__AddProperty(runtimeServicesNode, "table", sizeof(uint64_t), &gST32->RuntimeServices);
}
else
{
DT__AddProperty(runtimeServicesNode, "table", sizeof(uint64_t), &gST64->RuntimeServices);
}
// Set up the /efi/configuration-table node which will eventually have several child nodes for
// all of the configuration tables needed by various kernel extensions.
gEfiConfigurationTableNode = DT__AddChild(node, "configuration-table");
// Now fill in the /efi/platform Node
Node *efiPlatformNode = DT__AddChild(node, "platform");
// NOTE WELL: If you do add FSB Frequency detection, make sure to store
// the value in the fsbFrequency global and not an malloc'd pointer
// because the DT_AddProperty function does not copy its args.
if (Platform.CPU.FSBFrequency != 0)
DT__AddProperty(efiPlatformNode, FSB_Frequency_prop, sizeof(uint64_t), &Platform.CPU.FSBFrequency);
// Export TSC and CPU frequencies for use by the kernel or KEXTs
if (Platform.CPU.TSCFrequency != 0)
DT__AddProperty(efiPlatformNode, TSC_Frequency_prop, sizeof(uint64_t), &Platform.CPU.TSCFrequency);
if (Platform.CPU.CPUFrequency != 0)
DT__AddProperty(efiPlatformNode, CPU_Frequency_prop, sizeof(uint64_t), &Platform.CPU.CPUFrequency);
// Export system-id. Can be disabled with SystemId=No in com.apple.Boot.plist
if ((ret=getSystemID()))
DT__AddProperty(efiPlatformNode, SYSTEM_ID_PROP, UUID_LEN, (EFI_UINT32*) ret);
// Export SystemSerialNumber if present
if ((ret16=getSmbiosChar16("SMserial", &len)))
DT__AddProperty(efiPlatformNode, SYSTEM_SERIAL_PROP, len, ret16);
// Export Model if present
if ((ret16=getSmbiosChar16("SMproductname", &len)))
DT__AddProperty(efiPlatformNode, MODEL_PROP, len, ret16);
// Fill /efi/device-properties node.
setupDeviceProperties(node);
}
void initEFITree(void)
{
_EFI_DEBUG_DUMP("Entering initEFITree(%x)\n", gPlatform.ACPI.Guid.Data1);
static char ACPI[] = "ACPI";
// The required information should be added to private_data.h
static EFI_CHAR16 const MODEL_NAME[] = STATIC_MODEL_NAME;
static EFI_CHAR16 const SYSTEM_SERIAL_NUMBER[] = STATIC_SYSTEM_SERIAL_NUMBER;
DT__Initialize(); // Add and initialize gPlatform.DT.RootNode
/*
* The root node is available until the call to DT__Finalize, or the first call
* to DT__AddChild with NULL as first argument. Which we don't do and thus we
* can use it in the meantime, instead of defining a local / global variable.
*/
DT__AddProperty(gPlatform.DT.RootNode, "model", 5, ACPI);
DT__AddProperty(gPlatform.DT.RootNode, "compatible", 5, ACPI);
Node * efiNode = DT__AddChild(gPlatform.DT.RootNode, "efi");
DT__AddProperty(efiNode, "firmware-abi", 6, (gPlatform.ArchCPUType == CPU_TYPE_X86_64) ? "EFI64" : "EFI32");
DT__AddProperty(efiNode, "firmware-revision", sizeof(FIRMWARE_REVISION), (EFI_UINT32*) &FIRMWARE_REVISION);
DT__AddProperty(efiNode, "firmware-vendor", sizeof(FIRMWARE_VENDOR), (EFI_CHAR16*) FIRMWARE_VENDOR);
// Initialize a global var, used by function setupEFITables later on, to
// add the address to the boot arguments (done to speed up the process).
gPlatform.EFI.Nodes.RuntimeServices = DT__AddChild(efiNode, "runtime-services");
// Initialize a global var, used by function addConfigurationTable later on,
// to add the SMBIOS and ACPI tables (done to speed up the process).
gPlatform.EFI.Nodes.ConfigurationTable = DT__AddChild(efiNode, "configuration-table");
Node * platformNode = DT__AddChild(efiNode, "platform");
gPlatform.EFI.Nodes.Platform = platformNode;
// Satisfying AppleACPIPlatform.kext
static EFI_UINT8 const DEVICE_PATHS_SUPPORTED[] = { 0x01, 0x00, 0x00, 0x00 };
DT__AddProperty(platformNode, "DevicePathsSupported", sizeof(DEVICE_PATHS_SUPPORTED), (EFI_UINT8*) &DEVICE_PATHS_SUPPORTED);
// The use of sizeof() here is mandatory (to prevent breakage).
DT__AddProperty(platformNode, "Model", sizeof(MODEL_NAME), (EFI_CHAR16*) MODEL_NAME);
DT__AddProperty(platformNode, "SystemSerialNumber", sizeof(SYSTEM_SERIAL_NUMBER), (EFI_CHAR16*) SYSTEM_SERIAL_NUMBER);
if (gPlatform.CPU.FSBFrequency)
{
_EFI_DEBUG_DUMP("Adding FSBFrequency property (%dMHz)\n", (gPlatform.CPU.FSBFrequency / 1000));
DT__AddProperty(platformNode, "FSBFrequency", sizeof(uint64_t), &gPlatform.CPU.FSBFrequency);
}
Node * chosenNode = DT__AddChild(gPlatform.DT.RootNode, "chosen");
if (chosenNode == 0)
{
stop("Couldn't create /chosen node"); // Mimics boot.efi
}
gPlatform.EFI.Nodes.MemoryMap = DT__AddChild(chosenNode, "memory-map");
// Adding the root path for kextcache.
DT__AddProperty(chosenNode, "boot-device-path", 38, "\\System\\Library\\CoreServices\\boot.efi");
/* static EFI_UINT8 const BOOT_DEVICE_PATH[] =
{
0x02, 0x01, 0x0C, 0x00, 0xD0, 0x41, 0x08, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x06, 0x00,
0x02, 0x1F, 0x03, 0x12, 0x0A, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x01, 0x2A, 0x00,
0x02, 0x00, 0x00, 0x00, 0x28, 0x40, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0x0B, 0x63, 0x34,
0x00, 0x00, 0x00, 0x00, 0x65, 0x8C, 0x53, 0x3F, 0x1B, 0xCA, 0x83, 0x38, 0xA9, 0xD0, 0xF0, 0x46,
0x19, 0x14, 0x8E, 0x31, 0x02, 0x02, 0x7F, 0xFF, 0x04, 0x00
};
DT__AddProperty(chosenNode, "boot-device-path", sizeof(BOOT_DEVICE_PATH), &BOOT_DEVICE_PATH); */
// Adding the default kernel name (mach_kernel) for kextcache.
DT__AddProperty(chosenNode, "boot-file", sizeof(bootInfo->bootFile), bootInfo->bootFile);
#if APPLE_STYLE_EFI
static EFI_UINT8 const BOOT_FILE_PATH[] =
{
0x04, 0x04, 0x50, 0x00, 0x5c, 0x00, 0x53, 0x00, 0x79, 0x00, 0x73, 0x00, 0x74, 0x00, 0x65, 0x00,
0x6d, 0x00, 0x5c, 0x00, 0x4c, 0x00, 0x69, 0x00, 0x62, 0x00, 0x72, 0x00, 0x61, 0x00, 0x72, 0x00,
0x79, 0x00, 0x5c, 0x00, 0x43, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x65, 0x00, 0x53, 0x00, 0x65, 0x00,
0x72, 0x00, 0x76, 0x00, 0x69, 0x00, 0x63, 0x00, 0x65, 0x00, 0x73, 0x00, 0x5c, 0x00, 0x62, 0x00,
0x6f, 0x00, 0x6f, 0x00, 0x74, 0x00, 0x2e, 0x00, 0x65, 0x00, 0x66, 0x00, 0x69, 0x00, 0x00, 0x00,
0x7f, 0xff, 0x04, 0x00
};
DT__AddProperty(chosenNode, "boot-file-path", sizeof(BOOT_FILE_PATH), (EFI_UINT8*) &BOOT_FILE_PATH);
static EFI_UINT8 const BOOT_ARGS[] = { 0x00 };
DT__AddProperty(chosenNode, "boot-args", sizeof(BOOT_ARGS), (EFI_UINT8*) &BOOT_ARGS);
/* Adding kIOHibernateMachineSignatureKey (IOHibernatePrivate.h).
*
* This 'Hardware Signature' (offset 8 in the FACS table) is calculated by the BIOS on a best effort
* basis to indicate the base hardware configuration of the system such that different base hardware
* configurations can have different hardware signature values. OSPM uses this information in waking
* from an S4 state, by comparing the current hardware signature to the signature values saved in the
* non-volatile sleep image. If the values are not the same, OSPM assumes that the saved non-volatile
* image is from a different hardware configuration and cannot be restored.
*/
static EFI_UINT8 const MACHINE_SIGNATURE[] = { 0x00, 0x00, 0x00, 0x00 };
DT__AddProperty(chosenNode, "machine-signature", sizeof(MACHINE_SIGNATURE), (EFI_UINT8*) &MACHINE_SIGNATURE);
#if ((MAKE_TARGET_OS & LION) == LION)
// Used by boot.efi - cosmetic only node/properties on hacks.
Node * kernelCompatNode = DT__AddChild(efiNode, "kernel-compatibility");
static EFI_UINT8 const COMPAT_MODE[] = { 0x01, 0x00, 0x00, 0x00 };
DT__AddProperty(kernelCompatNode, "i386", sizeof(COMPAT_MODE), (EFI_UINT8*) &COMPAT_MODE);
DT__AddProperty(kernelCompatNode, "x86_64", sizeof(COMPAT_MODE), (EFI_UINT8*) &COMPAT_MODE);
#endif
// Adding the options node breaks AppleEFINVRAM (missing hardware UUID).
// Node *optionsNode = DT__AddChild(gPlatform.DT.RootNode, "options");
// DT__AddProperty(optionsNode, "EFICapsuleResult", 4, "STAR"); // 53 54 41 52
#endif
// DT__AddProperty(chosenNode, "boot-kernelcache-adler32", sizeof(uint64_t), adler32);
gPlatform.EFI.Nodes.Chosen = chosenNode;
#if INJECT_EFI_DEVICE_PROPERTIES
static EFI_UINT8 const EFI_DEVICE_PROPERTIES[] =
{
STATIC_EFI_DEVICE_PROPERTIES
};
_EFI_DEBUG_DUMP("Injecting EFI device-properties\n");
DT__AddProperty(efiNode, "device-properties", sizeof(EFI_DEVICE_PROPERTIES), (EFI_CHAR8*) &EFI_DEVICE_PROPERTIES);
#endif
_EFI_DEBUG_DUMP("Exiting initEFITree()\n");
_EFI_DEBUG_SLEEP(5);
}
