␊ |
/*␊ |
* Copyright 2007 David F. Elliott. All rights reserved.␊ |
* Copyright 2007 David F. Elliott.␉ All rights reserved.␊ |
*/␊ |
␊ |
#include "libsaio.h"␊ |
|
extern void setup_pci_devs(pci_dt_t *pci_dt);␊ |
␊ |
/*␊ |
Modern Darwin kernels require some amount of EFI because Apple machines all␊ |
have EFI. Modifying the kernel source to not require EFI is of course␊ |
possible but would have to be maintained as a separate patch because it is␊ |
unlikely that Apple wishes to add legacy support to their kernel.␊ |
* Modern Darwin kernels require some amount of EFI because Apple machines all␊ |
* have EFI. Modifying the kernel source to not require EFI is of course␊ |
* possible but would have to be maintained as a separate patch because it is␊ |
* unlikely that Apple wishes to add legacy support to their kernel.␊ |
*␊ |
* As you can see from the Apple-supplied code in bootstruct.c, it seems that␊ |
* the intention was clearly to modify this booter to provide EFI-like structures␊ |
* to the kernel rather than modifying the kernel to handle non-EFI stuff.␉ This␊ |
* makes a lot of sense from an engineering point of view as it means the kernel␊ |
* for the as yet unreleased EFI-only Macs could still be booted by the non-EFI␊ |
* DTK systems so long as the kernel checked to ensure the boot tables were␊ |
* filled in appropriately.␉ Modern xnu requires a system table and a runtime␊ |
* services table and performs no checks whatsoever to ensure the pointers to␊ |
* these tables are non-NULL.␉Therefore, any modern xnu kernel will page fault␊ |
* early on in the boot process if the system table pointer is zero.␊ |
*␊ |
* Even before that happens, the tsc_init function in modern xnu requires the FSB␊ |
* Frequency to be a property in the /efi/platform node of the device tree or else␊ |
* it panics the bootstrap process very early on.␊ |
*␊ |
* As of this writing, the current implementation found here is good enough␊ |
* to make the currently available xnu kernel boot without modification on a␊ |
* system with an appropriate processor. With a minor source modification to␊ |
* the tsc_init function to remove the explicit check for Core or Core 2␊ |
* processors the kernel can be made to boot on other processors so long as␊ |
* the code can be executed by the processor and the machine contains the␊ |
* necessary hardware.␊ |
*/␊ |
␊ |
As you can see from the Apple-supplied code in bootstruct.c, it seems that␊ |
the intention was clearly to modify this booter to provide EFI-like structures␊ |
to the kernel rather than modifying the kernel to handle non-EFI stuff. This␊ |
makes a lot of sense from an engineering point of view as it means the kernel␊ |
for the as yet unreleased EFI-only Macs could still be booted by the non-EFI␊ |
DTK systems so long as the kernel checked to ensure the boot tables were␊ |
filled in appropriately. Modern xnu requires a system table and a runtime␊ |
services table and performs no checks whatsoever to ensure the pointers to␊ |
these tables are non-NULL. Therefore, any modern xnu kernel will page fault␊ |
early on in the boot process if the system table pointer is zero.␊ |
␊ |
Even before that happens, the tsc_init function in modern xnu requires the FSB␊ |
Frequency to be a property in the /efi/platform node of the device tree or else␊ |
it panics the bootstrap process very early on.␊ |
␊ |
As of this writing, the current implementation found here is good enough␊ |
to make the currently available xnu kernel boot without modification on a␊ |
system with an appropriate processor. With a minor source modification to␊ |
the tsc_init function to remove the explicit check for Core or Core 2␊ |
processors the kernel can be made to boot on other processors so long as␊ |
the code can be executed by the processor and the machine contains the␊ |
necessary hardware.␊ |
*/␊ |
␊ |
␊ |
/*==========================================================================␊ |
* Utility function to make a device tree string from an EFI_GUID␊ |
*/␊ |
␊ |
static inline char * mallocStringForGuid(EFI_GUID const *pGuid)␊ |
{␊ |
char *string = malloc(37);␊ |
efi_guid_unparse_upper(pGuid, string);␊ |
return string;␊ |
␉char *string = malloc(37);␊ |
␉efi_guid_unparse_upper(pGuid, string);␊ |
␉return string;␊ |
}␊ |
␊ |
␊ |
/*==========================================================================␊ |
* Function to map 32 bit physical address to 64 bit virtual address␊ |
*/␊ |
␊ |
static uint64_t ptov64(uint32_t addr)␊ |
{␊ |
return ((uint64_t)addr | 0xFFFFFF8000000000ULL);␊ |
␉return ((uint64_t)addr | 0xFFFFFF8000000000ULL);␊ |
}␊ |
␊ |
␊ |
/*==========================================================================␊ |
* Fake EFI implementation␊ |
*/␊ |
|
static EFI_UINT32 const FIRMWARE_REVISION = 132; /* FIXME: Find a constant for this. */␊ |
␊ |
/* Default platform system_id (fix by IntVar) */␊ |
static EFI_CHAR8 const SYSTEM_ID[] = "0123456789ABCDEF";//random value gen by uuidgen␊ |
static EFI_CHAR8 const SYSTEM_ID[] = "0123456789ABCDEF"; //random value gen by uuidgen␊ |
␊ |
/* Just a ret instruction */␊ |
static uint8_t const VOIDRET_INSTRUCTIONS[] = {0xc3};␊ |
␊ |
/* movl $0x80000003,%eax; ret */␊ |
static uint8_t const UNSUPPORTEDRET_INSTRUCTIONS[] = {0xb8, 0x03, 0x00, 0x00, 0x80, 0xc3};␊ |
␊ |
␊ |
/* We use the fake_efi_pages struct so that we only need to do one kernel␊ |
* memory allocation for all needed EFI data. Otherwise, small allocations␊ |
* like the FIRMWARE_VENDOR string would take up an entire page.␊ |
* NOTE WELL: Do NOT assume this struct has any particular layout within itself.␊ |
* It is absolutely not intended to be publicly exposed anywhere␊ |
* We say pages (plural) although right now we are well within the 1 page size␊ |
* and probably will stay that way.␊ |
*/␊ |
struct fake_efi_pages␊ |
{␊ |
EFI_SYSTEM_TABLE_64 efiSystemTable;␊ |
EFI_RUNTIME_SERVICES_64 efiRuntimeServices;␊ |
EFI_CONFIGURATION_TABLE_64 efiConfigurationTable[MAX_CONFIGURATION_TABLE_ENTRIES];␊ |
EFI_CHAR16 firmwareVendor[sizeof(FIRMWARE_VENDOR)/sizeof(EFI_CHAR16)];␊ |
uint8_t voidret_instructions[sizeof(VOIDRET_INSTRUCTIONS)/sizeof(uint8_t)];␊ |
uint8_t unsupportedret_instructions[sizeof(UNSUPPORTEDRET_INSTRUCTIONS)/sizeof(uint8_t)];␊ |
};␊ |
␊ |
EFI_SYSTEM_TABLE_64 *gST = NULL;␊ |
EFI_SYSTEM_TABLE_32 *gST32 = NULL;␊ |
EFI_SYSTEM_TABLE_64 *gST64 = NULL;␊ |
Node *gEfiConfigurationTableNode = NULL;␊ |
␊ |
extern EFI_STATUS addConfigurationTable(EFI_GUID const *pGuid, void *table, char const *alias)␊ |
{␊ |
EFI_UINTN i = gST->NumberOfTableEntries;␊ |
/* We only do adds, not modifications and deletes like InstallConfigurationTable */␊ |
if(i >= MAX_CONFIGURATION_TABLE_ENTRIES)␊ |
stop("Ran out of space for configuration tables. Increase the reserved size in the code.\n");␊ |
␊ |
if(pGuid == NULL)␊ |
return EFI_INVALID_PARAMETER;␊ |
␊ |
if(table != NULL)␊ |
{␊ |
␉/* FIXME␊ |
((EFI_CONFIGURATION_TABLE_64 *)gST->ConfigurationTable)[i].VendorGuid = *pGuid;␊ |
((EFI_CONFIGURATION_TABLE_64 *)gST->ConfigurationTable)[i].VendorTable = (EFI_PTR64)table;␊ |
␊ |
++gST->NumberOfTableEntries;␊ |
␉␉ */␊ |
Node *tableNode = DT__AddChild(gEfiConfigurationTableNode, mallocStringForGuid(pGuid));␊ |
␊ |
/* Use the pointer to the GUID we just stuffed into the system table */␊ |
␉ ␉DT__AddProperty(tableNode, "guid", sizeof(EFI_GUID), (void*)pGuid);␊ |
␊ |
/* The "table" property is the 32-bit (in our implementation) physical address of the table */␊ |
␉␉DT__AddProperty(tableNode, "table", sizeof(void*) * 2, table);␊ |
␊ |
/* Assume the alias pointer is a global or static piece of data */␊ |
if(alias != NULL)␊ |
DT__AddProperty(tableNode, "alias", strlen(alias)+1, (char*)alias);␊ |
␊ |
return EFI_SUCCESS;␊ |
}␊ |
return EFI_UNSUPPORTED;␊ |
␉EFI_UINTN i = 0;␊ |
␉␊ |
␉//Azi: as is, cpu's with em64t will use EFI64 on pre 10.6 systems,␊ |
␉// wich seems to cause no problem. In case it does, force i386 arch.␊ |
␉if (archCpuType == CPU_TYPE_I386)␊ |
␉{␊ |
␉␉i = gST32->NumberOfTableEntries;␊ |
␉}␊ |
␉else␊ |
␉{␊ |
␉␉i = gST64->NumberOfTableEntries;␊ |
␉}␊ |
␉␊ |
␉// We only do adds, not modifications and deletes like InstallConfigurationTable␊ |
␉if (i >= MAX_CONFIGURATION_TABLE_ENTRIES)␊ |
␉␉stop("Ran out of space for configuration tables. Increase the reserved size in the code.\n");␊ |
␉␊ |
␉if (pGuid == NULL)␊ |
␉␉return EFI_INVALID_PARAMETER;␊ |
␉␊ |
␉if (table != NULL)␊ |
␉{␊ |
␉␉// FIXME␊ |
␉␉//((EFI_CONFIGURATION_TABLE_64 *)gST->ConfigurationTable)[i].VendorGuid = *pGuid;␊ |
␉␉//((EFI_CONFIGURATION_TABLE_64 *)gST->ConfigurationTable)[i].VendorTable = (EFI_PTR64)table;␊ |
␉␉␊ |
␉␉//++gST->NumberOfTableEntries;␊ |
␉␉␊ |
␉␉Node *tableNode = DT__AddChild(gEfiConfigurationTableNode, mallocStringForGuid(pGuid));␊ |
␉␉␊ |
␉␉// Use the pointer to the GUID we just stuffed into the system table␊ |
␉␉DT__AddProperty(tableNode, "guid", sizeof(EFI_GUID), (void*)pGuid);␊ |
␉␉␊ |
␉␉// The "table" property is the 32-bit (in our implementation) physical address of the table␊ |
␉␉DT__AddProperty(tableNode, "table", sizeof(void*) * 2, table);␊ |
␉␉␊ |
␉␉// Assume the alias pointer is a global or static piece of data␊ |
␉␉if (alias != NULL)␊ |
␉␉␉DT__AddProperty(tableNode, "alias", strlen(alias)+1, (char*)alias);␊ |
␉␉␊ |
␉␉return EFI_SUCCESS;␊ |
␉}␊ |
␉return EFI_UNSUPPORTED;␊ |
}␊ |
␊ |
static inline void fixupEfiSystemTableCRC32(EFI_SYSTEM_TABLE_64 *efiSystemTable)␊ |
//Azi: crc32 done in place, on the cases were it wasn't.␊ |
/*static inline void fixupEfiSystemTableCRC32(EFI_SYSTEM_TABLE_64 *efiSystemTable)␊ |
{␊ |
efiSystemTable->Hdr.CRC32 = 0;␊ |
efiSystemTable->Hdr.CRC32 = crc32(0L, efiSystemTable, efiSystemTable->Hdr.HeaderSize);␊ |
}␊ |
␉efiSystemTable->Hdr.CRC32 = 0;␊ |
␉efiSystemTable->Hdr.CRC32 = crc32(0L, efiSystemTable, efiSystemTable->Hdr.HeaderSize);␊ |
}*/␊ |
␊ |
/*␊ |
What we do here is simply allocate a fake EFI system table and a fake EFI␊ |
runtime services table.␊ |
* What we do here is simply allocate a fake EFI system table and a fake EFI␊ |
* runtime services table.␊ |
*␊ |
* Because we build against modern headers with kBootArgsRevision 4 we␊ |
* also take care to set efiMode = 32.␊ |
*/␊ |
␊ |
Because we build against modern headers with kBootArgsRevision 4 we␊ |
also take care to set efiMode = 32.␊ |
*/␊ |
void␊ |
setupEfiTables(void)␊ |
void setupEfiTables32(void)␊ |
{␊ |
struct fake_efi_pages *fakeEfiPages= (struct fake_efi_pages*)AllocateKernelMemory(sizeof(struct fake_efi_pages));␊ |
␉// We use the fake_efi_pages struct so that we only need to do one kernel␊ |
␉// memory allocation for all needed EFI data. Otherwise, small allocations␊ |
␉// like the FIRMWARE_VENDOR string would take up an entire page.␊ |
␉// NOTE WELL: Do NOT assume this struct has any particular layout within itself.␊ |
␉// It is absolutely not intended to be publicly exposed anywhere␊ |
␉// We say pages (plural) although right now we are well within the 1 page size␊ |
␉// and probably will stay that way.␊ |
␉struct fake_efi_pages␊ |
␉{␊ |
␉␉EFI_SYSTEM_TABLE_32 efiSystemTable;␊ |
␉␉EFI_RUNTIME_SERVICES_32 efiRuntimeServices;␊ |
␉␉EFI_CONFIGURATION_TABLE_32 efiConfigurationTable[MAX_CONFIGURATION_TABLE_ENTRIES];␊ |
␉␉EFI_CHAR16 firmwareVendor[sizeof(FIRMWARE_VENDOR)/sizeof(EFI_CHAR16)];␊ |
␉␉uint8_t voidret_instructions[sizeof(VOIDRET_INSTRUCTIONS)/sizeof(uint8_t)];␊ |
␉␉uint8_t unsupportedret_instructions[sizeof(UNSUPPORTEDRET_INSTRUCTIONS)/sizeof(uint8_t)];␊ |
␉};␊ |
␉␊ |
␉struct fake_efi_pages *fakeEfiPages = (struct fake_efi_pages*)AllocateKernelMemory(sizeof(struct fake_efi_pages));␊ |
␉␊ |
␉// Zero out all the tables in case fields are added later␊ |
␉bzero(fakeEfiPages, sizeof(struct fake_efi_pages));␊ |
␉␊ |
␉// --------------------------------------------------------------------␊ |
␉// Initialize some machine code that will return EFI_UNSUPPORTED for␊ |
␉// functions returning int and simply return for void functions.␊ |
␉memcpy(fakeEfiPages->voidret_instructions, VOIDRET_INSTRUCTIONS, sizeof(VOIDRET_INSTRUCTIONS));␊ |
␉memcpy(fakeEfiPages->unsupportedret_instructions, UNSUPPORTEDRET_INSTRUCTIONS, sizeof(UNSUPPORTEDRET_INSTRUCTIONS));␊ |
␉␊ |
␉// --------------------------------------------------------------------␊ |
␉// System table␊ |
␉EFI_SYSTEM_TABLE_32 *efiSystemTable = gST32 = &fakeEfiPages->efiSystemTable;␊ |
␉efiSystemTable->Hdr.Signature = EFI_SYSTEM_TABLE_SIGNATURE;␊ |
␉efiSystemTable->Hdr.Revision = EFI_SYSTEM_TABLE_REVISION;␊ |
␉efiSystemTable->Hdr.HeaderSize = sizeof(EFI_SYSTEM_TABLE_32);␊ |
␉efiSystemTable->Hdr.CRC32 = 0; // Initialize to zero and then do CRC32␊ |
␉efiSystemTable->Hdr.Reserved = 0;␊ |
␉␊ |
␉efiSystemTable->FirmwareVendor = (EFI_PTR32)&fakeEfiPages->firmwareVendor;␊ |
␉memcpy(fakeEfiPages->firmwareVendor, FIRMWARE_VENDOR, sizeof(FIRMWARE_VENDOR));␊ |
␉efiSystemTable->FirmwareRevision = FIRMWARE_REVISION;␊ |
␉␊ |
␉// XXX: We may need to have basic implementations of ConIn/ConOut/StdErr␊ |
␉// The EFI spec states that all handles are invalid after boot services have been␊ |
␉// exited so we can probably get by with leaving the handles as zero.␊ |
␉efiSystemTable->ConsoleInHandle = 0;␊ |
␉efiSystemTable->ConIn = 0;␊ |
␉␊ |
␉efiSystemTable->ConsoleOutHandle = 0;␊ |
␉efiSystemTable->ConOut = 0;␊ |
␉␊ |
␉efiSystemTable->StandardErrorHandle = 0;␊ |
␉efiSystemTable->StdErr = 0;␊ |
␉␊ |
␉efiSystemTable->RuntimeServices = (EFI_PTR32)&fakeEfiPages->efiRuntimeServices;␊ |
␉␊ |
␉// According to the EFI spec, BootServices aren't valid after the␊ |
␉// boot process is exited so we can probably do without it.␊ |
␉// Apple didn't provide a definition for it in pexpert/i386/efi.h␊ |
␉// so I'm guessing they don't use it.␊ |
␉efiSystemTable->BootServices = 0;␊ |
␉␊ |
␉efiSystemTable->NumberOfTableEntries = 0;␊ |
␉efiSystemTable->ConfigurationTable = (EFI_PTR32)fakeEfiPages->efiConfigurationTable;␊ |
␉␊ |
␉// We're done. Now CRC32 the thing so the kernel will accept it.␊ |
␉// Must be initialized to zero before CRC32, done above.␊ |
␉gST32->Hdr.CRC32 = crc32(0L, gST32, gST32->Hdr.HeaderSize);␊ |
␉␊ |
␉// --------------------------------------------------------------------␊ |
␉// Runtime services␊ |
␉EFI_RUNTIME_SERVICES_32 *efiRuntimeServices = &fakeEfiPages->efiRuntimeServices;␊ |
␉efiRuntimeServices->Hdr.Signature = EFI_RUNTIME_SERVICES_SIGNATURE;␊ |
␉efiRuntimeServices->Hdr.Revision = EFI_RUNTIME_SERVICES_REVISION;␊ |
␉efiRuntimeServices->Hdr.HeaderSize = sizeof(EFI_RUNTIME_SERVICES_32);␊ |
␉efiRuntimeServices->Hdr.CRC32 = 0;␊ |
␉efiRuntimeServices->Hdr.Reserved = 0;␊ |
␉␊ |
␉// There are a number of function pointers in the efiRuntimeServices table.␊ |
␉// These are the Foundation (e.g. core) services and are expected to be present on␊ |
␉// all EFI-compliant machines.␉Some kernel extensions (notably AppleEFIRuntime)␊ |
␉// will call these without checking to see if they are null.␊ |
␉//␊ |
␉// We don't really feel like doing an EFI implementation in the bootloader␊ |
␉// but it is nice if we can at least prevent a complete crash by␊ |
␉// at least providing some sort of implementation until one can be provided␊ |
␉// nicely in a kext.␊ |
␉void (*voidret_fp)() = (void*)fakeEfiPages->voidret_instructions;␊ |
␉void (*unsupportedret_fp)() = (void*)fakeEfiPages->unsupportedret_instructions;␊ |
␉efiRuntimeServices->GetTime = (EFI_PTR32)unsupportedret_fp;␊ |
␉efiRuntimeServices->SetTime = (EFI_PTR32)unsupportedret_fp;␊ |
␉efiRuntimeServices->GetWakeupTime = (EFI_PTR32)unsupportedret_fp;␊ |
␉efiRuntimeServices->SetWakeupTime = (EFI_PTR32)unsupportedret_fp;␊ |
␉efiRuntimeServices->SetVirtualAddressMap = (EFI_PTR32)unsupportedret_fp;␊ |
␉efiRuntimeServices->ConvertPointer = (EFI_PTR32)unsupportedret_fp;␊ |
␉efiRuntimeServices->GetVariable = (EFI_PTR32)unsupportedret_fp;␊ |
␉efiRuntimeServices->GetNextVariableName = (EFI_PTR32)unsupportedret_fp;␊ |
␉efiRuntimeServices->SetVariable = (EFI_PTR32)unsupportedret_fp;␊ |
␉efiRuntimeServices->GetNextHighMonotonicCount = (EFI_PTR32)unsupportedret_fp;␊ |
␉efiRuntimeServices->ResetSystem = (EFI_PTR32)voidret_fp;␊ |
␉␊ |
␉// We're done.␉Now CRC32 the thing so the kernel will accept it␊ |
␉efiRuntimeServices->Hdr.CRC32 = crc32(0L, efiRuntimeServices, efiRuntimeServices->Hdr.HeaderSize);␊ |
␉␊ |
␉// --------------------------------------------------------------------␊ |
␉// Finish filling in the rest of the boot args that we need.␊ |
␉bootArgs->efiSystemTable = (uint32_t)efiSystemTable;␊ |
␉bootArgs->efiMode = kBootArgsEfiMode32;␊ |
␉␊ |
␉// The bootArgs structure as a whole is bzero'd so we don't need to fill in␊ |
␉// things like efiRuntimeServices* and what not.␊ |
␉//␊ |
␉// In fact, the only code that seems to use that is the hibernate code so it␊ |
␉// knows not to save the pages.␉ It even checks to make sure its nonzero.␊ |
}␊ |
␊ |
/* Zero out all the tables in case fields are added later */␊ |
bzero(fakeEfiPages, sizeof(struct fake_efi_pages));␊ |
␊ |
/* --------------------------------------------------------------------␊ |
* Initialize some machine code that will return EFI_UNSUPPORTED for␊ |
* functions returning int and simply return for void functions.␊ |
*/␊ |
memcpy(fakeEfiPages->voidret_instructions, VOIDRET_INSTRUCTIONS, sizeof(VOIDRET_INSTRUCTIONS));␊ |
memcpy(fakeEfiPages->unsupportedret_instructions, UNSUPPORTEDRET_INSTRUCTIONS, sizeof(UNSUPPORTEDRET_INSTRUCTIONS));␊ |
␊ |
/* -------------------------------------------------------------------- */␊ |
/* System table */␊ |
EFI_SYSTEM_TABLE_64 *efiSystemTable = gST = &fakeEfiPages->efiSystemTable;␊ |
efiSystemTable->Hdr.Signature = EFI_SYSTEM_TABLE_SIGNATURE;␊ |
efiSystemTable->Hdr.Revision = EFI_SYSTEM_TABLE_REVISION;␊ |
efiSystemTable->Hdr.HeaderSize = sizeof(EFI_SYSTEM_TABLE_64);␊ |
efiSystemTable->Hdr.CRC32 = 0; /* Initialize to zero and then do CRC32 */␊ |
efiSystemTable->Hdr.Reserved = 0;␊ |
␊ |
efiSystemTable->FirmwareVendor = (EFI_PTR32)&fakeEfiPages->firmwareVendor;␊ |
memcpy(fakeEfiPages->firmwareVendor, FIRMWARE_VENDOR, sizeof(FIRMWARE_VENDOR));␊ |
efiSystemTable->FirmwareRevision = FIRMWARE_REVISION;␊ |
␊ |
/* XXX: We may need to have basic implementations of ConIn/ConOut/StdErr */␊ |
/* The EFI spec states that all handles are invalid after boot services have been␊ |
* exited so we can probably get by with leaving the handles as zero. */␊ |
efiSystemTable->ConsoleInHandle = 0;␊ |
efiSystemTable->ConIn = 0;␊ |
␊ |
efiSystemTable->ConsoleOutHandle = 0;␊ |
efiSystemTable->ConOut = 0;␊ |
␊ |
efiSystemTable->StandardErrorHandle = 0;␊ |
efiSystemTable->StdErr = 0;␊ |
␊ |
efiSystemTable->RuntimeServices = ptov64((EFI_PTR32)&fakeEfiPages->efiRuntimeServices);␊ |
/* According to the EFI spec, BootServices aren't valid after the␊ |
* boot process is exited so we can probably do without it.␊ |
* Apple didn't provide a definition for it in pexpert/i386/efi.h␊ |
* so I'm guessing they don't use it.␊ |
*/␊ |
efiSystemTable->BootServices = 0;␊ |
␊ |
efiSystemTable->NumberOfTableEntries = 0;␊ |
efiSystemTable->ConfigurationTable = (EFI_PTR32)fakeEfiPages->efiConfigurationTable;␊ |
␊ |
␊ |
/* We're done. Now CRC32 the thing so the kernel will accept it */␊ |
fixupEfiSystemTableCRC32(efiSystemTable);␊ |
␊ |
/* -------------------------------------------------------------------- */␊ |
/* Runtime services */␊ |
EFI_RUNTIME_SERVICES_64 *efiRuntimeServices = &fakeEfiPages->efiRuntimeServices;␊ |
efiRuntimeServices->Hdr.Signature = EFI_RUNTIME_SERVICES_SIGNATURE;␊ |
efiRuntimeServices->Hdr.Revision = EFI_RUNTIME_SERVICES_REVISION;␊ |
efiRuntimeServices->Hdr.HeaderSize = sizeof(EFI_RUNTIME_SERVICES_64);␊ |
efiRuntimeServices->Hdr.CRC32 = 0;␊ |
efiRuntimeServices->Hdr.Reserved = 0;␊ |
␊ |
/* There are a number of function pointers in the efiRuntimeServices table.␊ |
* These are the Foundation (e.g. core) services and are expected to be present on␊ |
* all EFI-compliant machines. Some kernel extensions (notably AppleEFIRuntime)␊ |
* will call these without checking to see if they are null.␊ |
*␊ |
* We don't really feel like doing an EFI implementation in the bootloader␊ |
* but it is nice if we can at least prevent a complete crash by␊ |
* at least providing some sort of implementation until one can be provided␊ |
* nicely in a kext.␊ |
*/␊ |
void (*voidret_fp)() = (void*)fakeEfiPages->voidret_instructions;␊ |
void (*unsupportedret_fp)() = (void*)fakeEfiPages->unsupportedret_instructions;␊ |
efiRuntimeServices->GetTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
efiRuntimeServices->SetTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
efiRuntimeServices->GetWakeupTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
efiRuntimeServices->SetWakeupTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
efiRuntimeServices->SetVirtualAddressMap = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
efiRuntimeServices->ConvertPointer = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
efiRuntimeServices->GetVariable = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
efiRuntimeServices->GetNextVariableName = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
efiRuntimeServices->SetVariable = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
efiRuntimeServices->GetNextHighMonotonicCount = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
efiRuntimeServices->ResetSystem = ptov64((EFI_PTR32)voidret_fp);␊ |
␊ |
/* We're done. Now CRC32 the thing so the kernel will accept it */␊ |
efiRuntimeServices->Hdr.CRC32 = crc32(0L, efiRuntimeServices, efiRuntimeServices->Hdr.HeaderSize);␊ |
␊ |
␊ |
/* -------------------------------------------------------------------- */␊ |
/* Finish filling in the rest of the boot args that we need. */␊ |
bootArgs->efiSystemTable = (uint32_t)efiSystemTable;␊ |
bootArgs->efiMode = kBootArgsEfiMode64;␊ |
␊ |
/* The bootArgs structure as a whole is bzero'd so we don't need to fill in␊ |
* things like efiRuntimeServices* and what not.␊ |
*␊ |
* In fact, the only code that seems to use that is the hibernate code so it␊ |
* knows not to save the pages. It even checks to make sure its nonzero.␊ |
*/␊ |
void setupEfiTables64(void)␊ |
{␊ |
␉struct fake_efi_pages␊ |
␉{␊ |
␉␉EFI_SYSTEM_TABLE_64 efiSystemTable;␊ |
␉␉EFI_RUNTIME_SERVICES_64 efiRuntimeServices;␊ |
␉␉EFI_CONFIGURATION_TABLE_64 efiConfigurationTable[MAX_CONFIGURATION_TABLE_ENTRIES];␊ |
␉␉EFI_CHAR16 firmwareVendor[sizeof(FIRMWARE_VENDOR)/sizeof(EFI_CHAR16)];␊ |
␉␉uint8_t voidret_instructions[sizeof(VOIDRET_INSTRUCTIONS)/sizeof(uint8_t)];␊ |
␉␉uint8_t unsupportedret_instructions[sizeof(UNSUPPORTEDRET_INSTRUCTIONS)/sizeof(uint8_t)];␊ |
␉};␊ |
␉␊ |
␉struct fake_efi_pages *fakeEfiPages = (struct fake_efi_pages*)AllocateKernelMemory(sizeof(struct fake_efi_pages));␊ |
␉␊ |
␉// Zero out all the tables in case fields are added later␊ |
␉bzero(fakeEfiPages, sizeof(struct fake_efi_pages));␊ |
␉␊ |
␉// --------------------------------------------------------------------␊ |
␉// Initialize some machine code that will return EFI_UNSUPPORTED for␊ |
␉// functions returning int and simply return for void functions.␊ |
␉memcpy(fakeEfiPages->voidret_instructions, VOIDRET_INSTRUCTIONS, sizeof(VOIDRET_INSTRUCTIONS));␊ |
␉memcpy(fakeEfiPages->unsupportedret_instructions, UNSUPPORTEDRET_INSTRUCTIONS, sizeof(UNSUPPORTEDRET_INSTRUCTIONS));␊ |
␉␊ |
␉// --------------------------------------------------------------------␊ |
␉// System table␊ |
␉EFI_SYSTEM_TABLE_64 *efiSystemTable = gST64 = &fakeEfiPages->efiSystemTable;␊ |
␉efiSystemTable->Hdr.Signature = EFI_SYSTEM_TABLE_SIGNATURE;␊ |
␉efiSystemTable->Hdr.Revision = EFI_SYSTEM_TABLE_REVISION;␊ |
␉efiSystemTable->Hdr.HeaderSize = sizeof(EFI_SYSTEM_TABLE_64);␊ |
␉efiSystemTable->Hdr.CRC32 = 0; // Initialize to zero and then do CRC32␊ |
␉efiSystemTable->Hdr.Reserved = 0;␊ |
␉␊ |
␉efiSystemTable->FirmwareVendor = ptov64((EFI_PTR32)&fakeEfiPages->firmwareVendor);␊ |
␉memcpy(fakeEfiPages->firmwareVendor, FIRMWARE_VENDOR, sizeof(FIRMWARE_VENDOR));␊ |
␉efiSystemTable->FirmwareRevision = FIRMWARE_REVISION;␊ |
␉␊ |
␉// XXX: We may need to have basic implementations of ConIn/ConOut/StdErr␊ |
␉// The EFI spec states that all handles are invalid after boot services have been␊ |
␉// exited so we can probably get by with leaving the handles as zero.␊ |
␉efiSystemTable->ConsoleInHandle = 0;␊ |
␉efiSystemTable->ConIn = 0;␊ |
␉␊ |
␉efiSystemTable->ConsoleOutHandle = 0;␊ |
␉efiSystemTable->ConOut = 0;␊ |
␉␊ |
␉efiSystemTable->StandardErrorHandle = 0;␊ |
␉efiSystemTable->StdErr = 0;␊ |
␉␊ |
␉efiSystemTable->RuntimeServices = ptov64((EFI_PTR32)&fakeEfiPages->efiRuntimeServices);␊ |
␉// According to the EFI spec, BootServices aren't valid after the␊ |
␉// boot process is exited so we can probably do without it.␊ |
␉// Apple didn't provide a definition for it in pexpert/i386/efi.h␊ |
␉// so I'm guessing they don't use it.␊ |
␉efiSystemTable->BootServices = 0;␊ |
␉␊ |
␉efiSystemTable->NumberOfTableEntries = 0;␊ |
␉efiSystemTable->ConfigurationTable = ptov64((EFI_PTR32)fakeEfiPages->efiConfigurationTable);␊ |
␉␊ |
␉// We're done.␉Now CRC32 the thing so the kernel will accept it␊ |
␉gST64->Hdr.CRC32 = crc32(0L, gST64, gST64->Hdr.HeaderSize);␊ |
␉␊ |
␉// --------------------------------------------------------------------␊ |
␉// Runtime services␊ |
␉EFI_RUNTIME_SERVICES_64 *efiRuntimeServices = &fakeEfiPages->efiRuntimeServices;␊ |
␉efiRuntimeServices->Hdr.Signature = EFI_RUNTIME_SERVICES_SIGNATURE;␊ |
␉efiRuntimeServices->Hdr.Revision = EFI_RUNTIME_SERVICES_REVISION;␊ |
␉efiRuntimeServices->Hdr.HeaderSize = sizeof(EFI_RUNTIME_SERVICES_64);␊ |
␉efiRuntimeServices->Hdr.CRC32 = 0;␊ |
␉efiRuntimeServices->Hdr.Reserved = 0;␊ |
␉␊ |
␉// There are a number of function pointers in the efiRuntimeServices table.␊ |
␉// These are the Foundation (e.g. core) services and are expected to be present on␊ |
␉// all EFI-compliant machines.␉Some kernel extensions (notably AppleEFIRuntime)␊ |
␉// will call these without checking to see if they are null.␊ |
␉//␊ |
␉// We don't really feel like doing an EFI implementation in the bootloader␊ |
␉// but it is nice if we can at least prevent a complete crash by␊ |
␉// at least providing some sort of implementation until one can be provided␊ |
␉// nicely in a kext.␊ |
␉␊ |
␉void (*voidret_fp)() = (void*)fakeEfiPages->voidret_instructions;␊ |
␉void (*unsupportedret_fp)() = (void*)fakeEfiPages->unsupportedret_instructions;␊ |
␉efiRuntimeServices->GetTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
␉efiRuntimeServices->SetTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
␉efiRuntimeServices->GetWakeupTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
␉efiRuntimeServices->SetWakeupTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
␉efiRuntimeServices->SetVirtualAddressMap = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
␉efiRuntimeServices->ConvertPointer = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
␉efiRuntimeServices->GetVariable = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
␉efiRuntimeServices->GetNextVariableName = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
␉efiRuntimeServices->SetVariable = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
␉efiRuntimeServices->GetNextHighMonotonicCount = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
␉efiRuntimeServices->ResetSystem = ptov64((EFI_PTR32)voidret_fp);␊ |
␉␊ |
␉// We're done.␉Now CRC32 the thing so the kernel will accept it␊ |
␉efiRuntimeServices->Hdr.CRC32 = crc32(0L, efiRuntimeServices, efiRuntimeServices->Hdr.HeaderSize);␊ |
␉␊ |
␉// --------------------------------------------------------------------␊ |
␉// Finish filling in the rest of the boot args that we need.␊ |
␉bootArgs->efiSystemTable = (uint32_t)efiSystemTable;␊ |
␉bootArgs->efiMode = kBootArgsEfiMode64;␊ |
␉␊ |
␉// The bootArgs structure as a whole is bzero'd so we don't need to fill in␊ |
␉// things like efiRuntimeServices* and what not.␊ |
␉//␊ |
␉// In fact, the only code that seems to use that is the hibernate code so it␊ |
␉// knows not to save the pages.␉ It even checks to make sure its nonzero.␊ |
}␊ |
␊ |
/*␊ |
In addition to the EFI tables there is also the EFI device tree node.␊ |
In particular, we need /efi/platform to have an FSBFrequency key. Without it,␊ |
the tsc_init function will panic very early on in kernel startup, before␊ |
the console is available.␊ |
*/␊ |
* In addition to the EFI tables there is also the EFI device tree node.␊ |
* In particular, we need /efi/platform to have an FSBFrequency key. Without it,␊ |
* the tsc_init function will panic very early on in kernel startup, before␊ |
* the console is available.␊ |
*/␊ |
␊ |
/*==========================================================================␊ |
* FSB Frequency detection␊ |
|
*/␊ |
␊ |
/* From Foundation/Efi/Guid/Smbios/SmBios.c */␊ |
EFI_GUID const gEfiSmbiosTableGuid = EFI_SMBIOS_TABLE_GUID;␊ |
EFI_GUID const␉gEfiSmbiosTableGuid = EFI_SMBIOS_TABLE_GUID;␊ |
␊ |
#define SMBIOS_RANGE_START 0x000F0000␊ |
#define SMBIOS_RANGE_END 0x000FFFFF␊ |
#define SMBIOS_RANGE_START␉␉0x000F0000␊ |
#define SMBIOS_RANGE_END␉␉0x000FFFFF␊ |
␊ |
/* '_SM_' in little endian: */␊ |
#define SMBIOS_ANCHOR_UINT32_LE 0x5f4d535f␊ |
␊ |
#define EFI_ACPI_TABLE_GUID \␊ |
{ \␊ |
0xeb9d2d30, 0x2d88, 0x11d3, { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \␊ |
␉0xeb9d2d30, 0x2d88, 0x11d3, { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \␊ |
}␊ |
␊ |
#define EFI_ACPI_20_TABLE_GUID \␊ |
{ \␊ |
0x8868e871, 0xe4f1, 0x11d3, { 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 } \␊ |
␉0x8868e871, 0xe4f1, 0x11d3, { 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 } \␊ |
}␊ |
␊ |
EFI_GUID gEfiAcpiTableGuid = EFI_ACPI_TABLE_GUID;␊ |
|
static const char const FIRMWARE_REVISION_PROP[] = "firmware-revision";␊ |
static const char const FIRMWARE_ABI_PROP[] = "firmware-abi";␊ |
static const char const FIRMWARE_VENDOR_PROP[] = "firmware-vendor";␊ |
static const char const FIRMWARE_ABI_PROP_VALUE[] = "EFI64";␊ |
static const char const FIRMWARE_ABI_32_PROP_VALUE[] = "EFI32";␊ |
static const char const FIRMWARE_ABI_64_PROP_VALUE[] = "EFI64";␊ |
static const char const SYSTEM_ID_PROP[] = "system-id";␊ |
static const char const SYSTEM_SERIAL_PROP[] = "SystemSerialNumber";␊ |
static const char const SYSTEM_TYPE_PROP[] = "system-type";␊ |
static const char const MODEL_PROP[] = "Model";␊ |
␊ |
␊ |
/* Get an smbios option string option to convert to EFI_CHAR16 string */␊ |
/*␊ |
* Get an smbios option string option to convert to EFI_CHAR16 string␊ |
*/␊ |
␊ |
static EFI_CHAR16* getSmbiosChar16(const char * key, size_t* len)␊ |
{␊ |
const char * src= getStringForKey(key, &bootInfo->smbiosConfig);␊ |
EFI_CHAR16* dst = 0;␊ |
size_t i=0;␊ |
␉const char␉*src = getStringForKey(key, &bootInfo->smbiosConfig);␊ |
␉EFI_CHAR16*␉ dst = 0;␊ |
␉size_t␉␉ i = 0;␊ |
␉␊ |
␉if (!key || !(*key) || !len || !src) return 0;␊ |
␉␊ |
␉*len = strlen(src);␊ |
␉dst = (EFI_CHAR16*) malloc( ((*len)+1) * 2 );␊ |
␉for (; i < (*len); i++)␉ dst[i] = src[i];␊ |
␉dst[(*len)] = '\0';␊ |
␉*len = ((*len)+1)*2; // return the CHAR16 bufsize in cluding zero terminated CHAR16␊ |
␉return dst;␊ |
}␊ |
␊ |
if (!key || !(*key) || !len || !src) return 0;␊ |
/*␊ |
* Get the SystemID from the bios dmi info␊ |
*/␊ |
␊ |
*len = strlen(src);␊ |
dst = (EFI_CHAR16*) malloc( ((*len)+1) * 2 );␊ |
for (; i < (*len); i++) dst[i] = src[i];␊ |
dst[(*len)] = '\0';␊ |
*len = ((*len)+1)*2; // return the CHAR16 bufsize in cluding zero terminated CHAR16␊ |
return dst;␊ |
}␊ |
␊ |
/* Get the SystemID from the bios dmi info */␊ |
static EFI_CHAR8* getSmbiosUUID()␊ |
static␉EFI_CHAR8* getSmbiosUUID()␊ |
{␊ |
␉SMBByte␉␉␉␉*p;␊ |
␉int␉␉␉␉␉i, isZero, isOnes;␊ |
␉static EFI_CHAR8␉uuid[UUID_LEN];␊ |
␊ |
␉static EFI_CHAR8␉␉ uuid[UUID_LEN];␊ |
␉int␉␉␉␉␉␉ i, isZero, isOnes;␊ |
␉SMBByte␉␉␉␉␉*p;␊ |
␉␊ |
␉p = (SMBByte*)Platform.UUID;␊ |
␉if (p==NULL) return NULL;␊ |
␊ |
␉for (i=0, isZero=1, isOnes=1; i<UUID_LEN; i++) {␊ |
␉␊ |
␉for (i=0, isZero=1, isOnes=1; i<UUID_LEN; i++)␊ |
␉{␊ |
␉␉if (p[i] != 0x00) isZero = 0;␊ |
␉␉if (p[i] != 0xff) isOnes = 0;␊ |
␉}␊ |
␉if (isZero || isOnes) {␉/* empty or setable means: no uuid present */␊ |
␉␊ |
␉if (isZero || isOnes) // empty or setable means: no uuid present␊ |
␉{␊ |
␉␉verbose("No UUID present in SMBIOS System Information Table\n");␊ |
␉␉return 0;␊ |
␉}␊ |
␊ |
␉␊ |
␉memcpy(uuid, p, UUID_LEN);␊ |
␉return uuid;␊ |
}␊ |
␊ |
/* return a binary UUID value from the overriden SystemID and SMUUID if found, ␊ |
/*␊ |
* return a binary UUID value from the overriden SystemID and SMUUID if found, ␊ |
* or from the bios if not, or from a fixed value if no bios value is found ␊ |
*/␊ |
␊ |
static EFI_CHAR8* getSystemID()␊ |
{ // unable to determine UUID for host. Error: 35 fix␊ |
{␊ |
␉// unable to determine UUID for host. Error: 35 fix␊ |
␉// Rek: new SMsystemid option conforming to smbios notation standards, this option should␊ |
␉// belong to smbios config only ...␊ |
␉const char *sysId = getStringForKey(kSystemID, &bootInfo->bootConfig);␊ |
␉EFI_CHAR8*␉ret = getUUIDFromString(sysId);␊ |
␊ |
// Rek: new SMsystemid option conforming to smbios notation standards, this option should␊ |
// belong to smbios config only ...␊ |
const char * sysId = getStringForKey(kSystemID, &bootInfo->bootConfig);␊ |
EFI_CHAR8* ret = getUUIDFromString(sysId);␊ |
␉if (!sysId || !ret) // try bios dmi info UUID extraction␊ |
␉{␊ |
␉␉ret = getSmbiosUUID();␊ |
␉␉sysId = 0;␊ |
␉}␊ |
␉␊ |
␉if (!ret) // no bios dmi UUID available, set a fixed value for system-id␊ |
␉␉ret=getUUIDFromString((sysId = (const char*) SYSTEM_ID));␊ |
␉␊ |
␉verbose("Customizing SystemID with : %s\n", getStringFromUUID(ret)); // apply a nice formatting to the displayed output␊ |
␉return ret;␊ |
}␊ |
␊ |
if(!sysId || !ret) { // try bios dmi info UUID extraction ␊ |
ret = getSmbiosUUID();␊ |
sysId = 0;␊ |
}␊ |
if(!ret) // no bios dmi UUID available, set a fixed value for system-id␊ |
ret=getUUIDFromString((sysId = (const char*) SYSTEM_ID));␊ |
/*␊ |
* Must be called AFTER setup Acpi because we need to take care of correct␊ |
* facp content to reflect in ioregs␊ |
*/␊ |
␊ |
verbose("Customizing SystemID with : %s\n", getStringFromUUID(ret)); // apply a nice formatting to the displayed output␊ |
return ret;␊ |
}␊ |
␊ |
// must be called AFTER setup Acpi because we need to take care of correct facp content to reflect in ioregs␊ |
void setupSystemType()␊ |
{␊ |
Node *node = DT__FindNode("/", false);␊ |
if (node == 0) stop("Couldn't get root node");␊ |
// we need to write this property after facp parsing␊ |
/* Export system-type only if it has been overrriden by the SystemType option */␊ |
DT__AddProperty(node, SYSTEM_TYPE_PROP, sizeof(Platform.Type), &Platform.Type);␊ |
␉Node *node = DT__FindNode("/", false);␊ |
␉if (node == 0) stop("Couldn't get root node");␊ |
␉// we need to write this property after facp parsing␊ |
␉// Export system-type only if it has been overrriden by the SystemType option␊ |
␉DT__AddProperty(node, SYSTEM_TYPE_PROP, sizeof(Platform.Type), &Platform.Type);␊ |
}␊ |
␊ |
void setupEfiDeviceTree(void)␊ |
{␊ |
EFI_CHAR16* ret16=0;␊ |
EFI_CHAR8* ret=0;␊ |
size_t len=0;␊ |
Node *node;␊ |
␉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);␊ |
␉}␊ |
␊ |
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");␊ |
␉// 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);␊ |
␊ |
DT__AddProperty(node, FIRMWARE_REVISION_PROP, sizeof(FIRMWARE_REVISION), (EFI_UINT32*)&FIRMWARE_REVISION);␊ |
DT__AddProperty(node, FIRMWARE_ABI_PROP, sizeof(FIRMWARE_ABI_PROP_VALUE), (char*)FIRMWARE_ABI_PROP_VALUE);␊ |
DT__AddProperty(node, FIRMWARE_VENDOR_PROP, sizeof(FIRMWARE_VENDOR), (EFI_CHAR16*)FIRMWARE_VENDOR);␊ |
␉ // 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);␊ |
}␊ |
␊ |
/* TODO: Fill in other efi properties if necessary */␊ |
/*␊ |
* Load the smbios.plist override config file if any␊ |
*/␊ |
␊ |
/* 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");␊ |
static void setupSmbiosConfigFile(const char *filename)␊ |
{␊ |
␉char␉␉dirSpecSMBIOS[128] = "";␊ |
␉const char *override_pathname = NULL;␊ |
␉int␉␉␉len = 0, err = 0;␊ |
␉extern void scan_mem();␊ |
␉␊ |
␉// Take in account user overriding␊ |
␉if (getValueForKey(kSMBIOSKey, &override_pathname, &len, &bootInfo->bootConfig) && len > 0)␊ |
␉{␊ |
␉␉// Specify a path to a file, e.g. SMBIOS=/Extra/macProXY.plist␊ |
␉␉sprintf(dirSpecSMBIOS, override_pathname);␊ |
␉␉err = loadConfigFile(dirSpecSMBIOS, &bootInfo->smbiosConfig);␊ |
␉}␊ |
␉else␊ |
␉{␊ |
␉␉// Check selected volume's Extra.␊ |
␉␉sprintf(dirSpecSMBIOS, "/Extra/%s", filename);␊ |
␉␉if (err = loadConfigFile(dirSpecSMBIOS, &bootInfo->smbiosConfig))␊ |
␉␉{␊ |
␉␉␉// Check booter volume/rdbt Extra.␊ |
␉␉␉sprintf(dirSpecSMBIOS, "bt(0,0)/Extra/%s", filename);␊ |
␉␉␉err = loadConfigFile(dirSpecSMBIOS, &bootInfo->smbiosConfig);␊ |
␉␉}␊ |
␉}␊ |
␊ |
/* 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), &gST->RuntimeServices);␊ |
␉if (err)␊ |
␉{␊ |
␉␉verbose("No SMBIOS replacement found.\n");␊ |
␉}␊ |
␊ |
/* 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");␊ |
␉// get a chance to scan mem dynamically if user asks for it while having the config options loaded as well,␊ |
␉// as opposed to when it was in scan_platform(); also load the orig. smbios so that we can access dmi info without␊ |
␉// patching the smbios yet␊ |
␊ |
/* 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 system-id=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);␊ |
␉scan_mem(); ␊ |
}␊ |
␊ |
/* Load the smbios.plist override config file if any */␊ |
static void setupSmbiosConfigFile()␊ |
{␊ |
const char * value = getStringForKey(kSMBIOS, &bootInfo->bootConfig);␊ |
extern void scan_mem();␊ |
/*␊ |
* Installs all the needed configuration table entries␊ |
*/␊ |
␊ |
if (!value) value = "/Extra/smbios.plist";␊ |
if (loadConfigFile(value, &bootInfo->smbiosConfig) == -1) {␊ |
verbose("No SMBIOS replacement found\n");␊ |
}␊ |
␊ |
// get a chance to scan mem dynamically if user asks for it while having the config options loaded as well␊ |
// as opposed to when it was in scan_platform(), also load the orig. smbios so that we can access dmi info without␊ |
// patching the smbios yet␊ |
␊ |
scan_mem(); ␊ |
}␊ |
␊ |
/* Installs all the needed configuration table entries */␊ |
static void setupEfiConfigurationTable()␊ |
{␊ |
␉smbios_p = (EFI_PTR32)getSmbios(SMBIOS_PATCHED);␊ |
␉addConfigurationTable(&gEfiSmbiosTableGuid, &smbios_p, NULL);␊ |
␊ |
␉␊ |
␉// Setup ACPI with DSDT overrides (mackerintel's patch)␊ |
␉setupAcpi();␊ |
␊ |
␉␊ |
␉// We've obviously changed the count.. so fix up the CRC32␊ |
␉fixupEfiSystemTableCRC32(gST);␊ |
␉if (archCpuType == CPU_TYPE_I386)␊ |
␉{␊ |
␉␉gST32->Hdr.CRC32 = 0;␊ |
␉␉gST32->Hdr.CRC32 = crc32(0L, gST32, gST32->Hdr.HeaderSize);␊ |
␉}␊ |
␉else␊ |
␉{␊ |
␉␉gST64->Hdr.CRC32 = 0;␊ |
␉␉gST64->Hdr.CRC32 = crc32(0L, gST64, gST64->Hdr.HeaderSize);␊ |
␉}␊ |
}␊ |
␊ |
/*␊ |
* Entrypoint from boot.c␊ |
*/␊ |
␊ |
/* Entrypoint from boot.c */␊ |
void setupFakeEfi(void)␊ |
{␊ |
␉// Generate efi device strings ␊ |
␉setup_pci_devs(root_pci_dev);␊ |
␊ |
readSMBIOSInfo(getSmbios(SMBIOS_ORIGINAL));␊ |
␉readSMBIOSInfo(getSmbios(SMBIOS_ORIGINAL));␊ |
␊ |
␉// load smbios.plist file if any␊ |
␉setupSmbiosConfigFile();␊ |
␊ |
␉setupSmbiosConfigFile("smbios.plist");␊ |
␉␊ |
␉setupSMBIOSTable();␊ |
␊ |
␉// Initialize the base table␊ |
␉setupEfiTables();␊ |
␊ |
␉if (archCpuType == CPU_TYPE_I386)␊ |
␉{␊ |
␉␉setupEfiTables32();␊ |
␉}␊ |
␉else␊ |
␉{␊ |
␉␉setupEfiTables64();␊ |
␉}␊ |
␉␊ |
␉// Initialize the device tree␊ |
␉setupEfiDeviceTree();␊ |
␊ |
␉␊ |
␉// Add configuration table entries to both the services table and the device tree␊ |
␉setupEfiConfigurationTable();␊ |
}␊ |