163 lines
4.9 KiB
C
163 lines
4.9 KiB
C
/**
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Methods for finding, checking and fixing boot args
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by dmazar (defs from Clover)
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**/
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/*
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* Video information..
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*/
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struct Boot_Video {
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UINT32 v_baseAddr; /* Base address of video memory */
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UINT32 v_display; /* Display Code (if Applicable */
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UINT32 v_rowBytes; /* Number of bytes per pixel row */
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UINT32 v_width; /* Width */
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UINT32 v_height; /* Height */
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UINT32 v_depth; /* Pixel Depth */
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};
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typedef struct Boot_Video Boot_Video;
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/* Values for v_display */
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#define GRAPHICS_MODE 1
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#define FB_TEXT_MODE 2
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/* Boot argument structure - passed into Mach kernel at boot time.
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* "Revision" can be incremented for compatible changes
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*/
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#define kBootArgsRevision 0
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#define kBootArgsVersion 2
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/* Snapshot constants of previous revisions that are supported */
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#define kBootArgsVersion1 1
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#define kBootArgsRevision1_4 4
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#define kBootArgsRevision1_5 5
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#define kBootArgsRevision1_6 6
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#define kBootArgsVersion2 2
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#define kBootArgsRevision2_0 0
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#define kBootArgsEfiMode32 32
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#define kBootArgsEfiMode64 64
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/* Bitfields for boot_args->flags */
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#define kBootArgsFlagRebootOnPanic (1 << 0)
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#define kBootArgsFlagHiDPI (1 << 1)
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#define BOOT_LINE_LENGTH 1024
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/* version 1 before Lion */
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typedef struct {
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UINT16 Revision; /* Revision of boot_args structure */
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UINT16 Version; /* Version of boot_args structure */
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CHAR8 CommandLine[BOOT_LINE_LENGTH]; /* Passed in command line */
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UINT32 MemoryMap; /* Physical address of memory map */
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UINT32 MemoryMapSize;
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UINT32 MemoryMapDescriptorSize;
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UINT32 MemoryMapDescriptorVersion;
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Boot_Video Video; /* Video Information */
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UINT32 deviceTreeP; /* Physical address of flattened device tree */
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UINT32 deviceTreeLength; /* Length of flattened tree */
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UINT32 kaddr; /* Physical address of beginning of kernel text */
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UINT32 ksize; /* Size of combined kernel text+data+efi */
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UINT32 efiRuntimeServicesPageStart; /* physical address of defragmented runtime pages */
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UINT32 efiRuntimeServicesPageCount;
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UINT32 efiSystemTable; /* physical address of system table in runtime area */
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UINT8 efiMode; /* 32 = 32-bit, 64 = 64-bit */
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UINT8 __reserved1[3];
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UINT32 __reserved2[1];
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UINT32 performanceDataStart; /* physical address of log */
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UINT32 performanceDataSize;
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UINT64 efiRuntimeServicesVirtualPageStart; /* virtual address of defragmented runtime pages */
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UINT32 __reserved3[2];
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} BootArgs1;
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/* version2 as used in Lion */
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typedef struct {
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UINT16 Revision; /* Revision of boot_args structure */
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UINT16 Version; /* Version of boot_args structure */
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UINT8 efiMode; /* 32 = 32-bit, 64 = 64-bit */
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UINT8 debugMode; /* Bit field with behavior changes */
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UINT16 flags;
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CHAR8 CommandLine[BOOT_LINE_LENGTH]; /* Passed in command line */
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UINT32 MemoryMap; /* Physical address of memory map */
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UINT32 MemoryMapSize;
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UINT32 MemoryMapDescriptorSize;
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UINT32 MemoryMapDescriptorVersion;
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Boot_Video Video; /* Video Information */
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UINT32 deviceTreeP; /* Physical address of flattened device tree */
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UINT32 deviceTreeLength; /* Length of flattened tree */
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UINT32 kaddr; /* Physical address of beginning of kernel text */
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UINT32 ksize; /* Size of combined kernel text+data+efi */
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UINT32 efiRuntimeServicesPageStart; /* physical address of defragmented runtime pages */
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UINT32 efiRuntimeServicesPageCount;
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UINT64 efiRuntimeServicesVirtualPageStart; /* virtual address of defragmented runtime pages */
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UINT32 efiSystemTable; /* physical address of system table in runtime area */
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UINT32 kslide;
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UINT32 performanceDataStart; /* physical address of log */
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UINT32 performanceDataSize;
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UINT32 keyStoreDataStart; /* physical address of key store data */
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UINT32 keyStoreDataSize;
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UINT64 bootMemStart; /* physical address of interpreter boot memory */
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UINT64 bootMemSize;
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UINT64 PhysicalMemorySize;
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UINT64 FSBFrequency;
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UINT64 pciConfigSpaceBaseAddress;
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UINT32 pciConfigSpaceStartBusNumber;
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UINT32 pciConfigSpaceEndBusNumber;
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UINT32 __reserved4[730];
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} BootArgs2;
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/** Our internal structure to hold boot args params to make the code independent of the boot args version. */
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typedef struct _BootArgs {
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UINT32 *MemoryMap; /* We will change this value so we need pointer to original field. */
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UINT32 *MemoryMapSize;
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UINT32 *MemoryMapDescriptorSize;
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UINT32 *MemoryMapDescriptorVersion;
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UINT32 *deviceTreeP;
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UINT32 *deviceTreeLength;
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UINT32 *kaddr;
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UINT32 *ksize;
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UINT32 *efiRuntimeServicesPageStart;
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UINT32 *efiRuntimeServicesPageCount;
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UINT64 *efiRuntimeServicesVirtualPageStart;
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UINT32 *efiSystemTable;
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} BootArgs;
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VOID EFIAPI BootArgsPrint(VOID *bootArgs);
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BootArgs* EFIAPI GetBootArgs(VOID *bootArgs);
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VOID EFIAPI BootArgsFix(BootArgs *BA, EFI_PHYSICAL_ADDRESS gRellocBase);
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VOID* EFIAPI BootArgsFind(IN EFI_PHYSICAL_ADDRESS Start);
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