| ␊ |
| /*␊ |
| * 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_VENDOR_PROP[] = "firmware-vendor";␊ |
| 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()␊ |
| {␊ |
| ␉static EFI_CHAR8␉␉ uuid[UUID_LEN];␊ |
| ␉int␉␉␉␉␉␉ i, isZero, isOnes;␊ |
| ␉struct SMBEntryPoint␉*smbios;␊ |
| ␉SMBByte␉␉␉*p;␊ |
| ␉int␉␉␉i, isZero, isOnes;␊ |
| ␉static EFI_CHAR8 uuid[UUID_LEN];␊ |
| ␊ |
| ␉smbios = getSmbios(SMBIOS_PATCHED);␉/* checks for _SM_ anchor and table header checksum */␊ |
| ␉SMBByte␉␉␉␉␉*p;␊ |
| ␉␊ |
| ␉smbios = getSmbios(SMBIOS_PATCHED); // checks for _SM_ anchor and table header checksum␊ |
| ␉if (smbios==NULL) return 0; // getSmbios() return a non null value if smbios is found␊ |
| ␊ |
| ␉p = (SMBByte*) FindFirstDmiTableOfType(1, 0x19); /* Type 1: (3.3.2) System Information */␊ |
| ␉␊ |
| ␉p = (SMBByte*) FindFirstDmiTableOfType(1, 0x19); // Type 1: (3.3.2) System Information␊ |
| ␉if (p==NULL) return NULL;␊ |
| ␊ |
| ␉␊ |
| ␉verbose("Found SMBIOS System Information Table 1\n");␊ |
| ␉p += 8;␊ |
| ␊ |
| ␉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;␊ |
| ␊ |
| 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");␊ |
| ␊ |
| DT__AddProperty(node, FIRMWARE_REVISION_PROP, sizeof(FIRMWARE_REVISION), (EFI_UINT32*)&FIRMWARE_REVISION);␊ |
| ␉EFI_CHAR8*␉ ret = 0;␊ |
| ␉EFI_CHAR16*␉ ret16 = 0;␊ |
| ␉size_t␉␉ len = 0;␊ |
| ␉Node␉␉*node;␊ |
| ␉␊ |
| ␉if(platformCPUFeature(CPU_FEATURE_EM64T))␊ |
| ␉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(node, FIRMWARE_ABI_PROP, sizeof(FIRMWARE_ABI_32_PROP_VALUE), (char*)FIRMWARE_ABI_32_PROP_VALUE);␊ |
| ␉␉DT__AddProperty(runtimeServicesNode, "table", sizeof(uint64_t), &gST64->RuntimeServices);␊ |
| ␉}␊ |
| ␊ |
| DT__AddProperty(node, FIRMWARE_VENDOR_PROP, sizeof(FIRMWARE_VENDOR), (EFI_CHAR16*)FIRMWARE_VENDOR);␊ |
| ␉// 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);␊ |
| ␊ |
| /* TODO: Fill in other efi properties if necessary */␊ |
| ␉ // 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);␊ |
| }␊ |
| ␊ |
| /* 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");␊ |
| /*␊ |
| * Load the smbios.plist override config file if any␊ |
| */␊ |
| ␊ |
| /* 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);␊ |
| ␊ |
| /* 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 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);␊ |
| static void setupSmbiosConfigFile(const char *filename)␊ |
| {␊ |
| ␉char␉␉dirSpecSMBIOS[128] = "";␊ |
| ␉const char *override_pathname = NULL;␊ |
| ␉int␉␉␉len = 0, fd = 0;␊ |
| ␉extern void scan_mem();␊ |
| ␉␊ |
| ␉// Take in account user overriding␊ |
| ␉if (getValueForKey(kSMBIOSKey, &override_pathname, &len, &bootInfo->bootConfig))␊ |
| ␉{␊ |
| ␉␉// Specify a path to a file, e.g. SMBIOS=/Extra/macProXY.plist␊ |
| ␉␉sprintf(dirSpecSMBIOS, override_pathname);␊ |
| ␉␉fd = loadConfigFile(dirSpecSMBIOS, &bootInfo->smbiosConfig);␊ |
| ␉␉if (fd >= 0) goto success_fd;␊ |
| ␉}␊ |
| ␉␊ |
| ␉// Check selected volume's Extra.␊ |
| ␉sprintf(dirSpecSMBIOS, "/Extra/%s", filename);␊ |
| ␉fd = loadConfigFile(dirSpecSMBIOS, &bootInfo->smbiosConfig);␊ |
| ␉if (fd >= 0) goto success_fd;␊ |
| ␉␊ |
| ␉// Check booter volume/rdbt Extra.␊ |
| ␉sprintf(dirSpecSMBIOS, "bt(0,0)/Extra/%s", filename);␊ |
| ␉fd = loadConfigFile(dirSpecSMBIOS, &bootInfo->smbiosConfig);␊ |
| ␉if (fd >= 0) goto success_fd;␊ |
| ␉␊ |
| ␉if (loadConfigFile(dirSpecSMBIOS, &bootInfo->smbiosConfig) == -1)␊ |
| ␉{␊ |
| ␉␉verbose("No SMBIOS replacement provided.\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␊ |
| success_fd:␊ |
| ␉getSmbios(SMBIOS_ORIGINAL);␊ |
| ␉scan_mem(); ␊ |
| ␉smbios_p = (EFI_PTR32)getSmbios(SMBIOS_PATCHED);␉// process smbios asap␊ |
| }␊ |
| ␊ |
| /* 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␊ |
| getSmbios(SMBIOS_ORIGINAL);␊ |
| scan_mem(); ␊ |
| smbios_p = (EFI_PTR32) getSmbios(SMBIOS_PATCHED);␉// process smbios asap␊ |
| }␊ |
| ␊ |
| /* 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);␊ |
| ␉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␊ |
| ␉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);␊ |
| ␉␊ |
| ␊ |
| ␉// load smbios.plist file if any␊ |
| ␉setupSmbiosConfigFile();␊ |
| ␉setupSmbiosConfigFile("SMBIOS.plist");␊ |
| ␉␊ |
| ␉// Initialize the base table␊ |
| ␉setupEfiTables();␊ |
| ␉if (archCpuType == CPU_TYPE_I386)␊ |
| ␉{␊ |
| ␉␉setupEfiTables32();␊ |
| ␉}␊ |
| ␉else␊ |
| ␉{␊ |
| ␉␉setupEfiTables64();␊ |
| ␉}␊ |
| ␉␊ |
| ␉// Initialize the device tree␊ |
| ␉setupEfiDeviceTree();␊ |
