Chameleon

Chameleon Commit Details

Date:2018-10-14 20:12:48 (5 years 6 months ago)
Author:ErmaC
Commit:2914
Parents: 2913
Message:Fix for a regression affecting all OS X releases prior to 10.12 (Credits to MinusZwei)
Changes:
M/trunk/i386/libsaio/bootargs.h
M/trunk/i386/libsaio/bootstruct.c
M/branches/ErmaC/Enoch/i386/libsaio/bootargs.h
M/branches/ErmaC/Enoch/i386/libsaio/bootstruct.c

File differences

trunk/i386/libsaio/bootstruct.c
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␉}␊
␉else␊
␉{␊
␉␉// for 10.7 10.8 10.9 10.10 10.11 10.12 10.13␊
␉␉// for 10.7 10.8 10.9 10.10 10.11 10.12 10.13 10.14␊
␉␉void *oldAddr = bootArgs;␊
␉␉bootArgs = (boot_args *)AllocateKernelMemory(sizeof(boot_args));␊
␉␉bcopy(oldAddr, bootArgs, sizeof(boot_args));␊
␉}␊
␊
␉// 10.12 and 10.13 new bootArgs?␊
␉// 10.12, 10.13 and 10.14 new bootArgs?␊
}␊
␊
//==============================================================================␊
␉bootArgs->deviceTreeP = (uint32_t)addr;␊
␉bootArgs->deviceTreeLength = size;␊
␊
␉//␊
␉// MinusZwei:␊
␉// Dump the new video struct fields in the old one.␊
␉// This will avoid a black screen issue with OS X between 10.8 and 10.11␊
␉//␊
␉// In order to be 100% safe, the new struct fields will also be seroed␊
␉// afterwards.␊
␉//␊
␉if ( MacOSVerCurrent < MacOSVer2Int("10.12") )␊
␉{␊
␉␉bootArgs->VideoV1.v_baseAddr = bootArgs->Video.v_baseAddr;␊
␉␉bootArgs->VideoV1.v_display = bootArgs->Video.v_display;␊
␉␉bootArgs->VideoV1.v_rowBytes = bootArgs->Video.v_rowBytes;␊
␉␉bootArgs->VideoV1.v_width = bootArgs->Video.v_width;␊
␉␉bootArgs->VideoV1.v_height = bootArgs->Video.v_height;␊
␉␉bootArgs->VideoV1.v_depth = bootArgs->Video.v_depth;␊
␊
␉␉bzero(&bootArgs->Video, sizeof(Boot_Video));␊
␊
␉␉bootArgs->apfsDataStart = 0;␊
␉␉bootArgs->apfsDataSize = 0;␊
␉}␊
␊
␉// Copy BootArgs values to older structure␊
␊
␉memcpy(&bootArgsLegacy->CommandLine, &bootArgs->CommandLine, BOOT_LINE_LENGTH);␊
␉memcpy(&bootArgsLegacy->Video, &bootArgs->Video, sizeof(Boot_Video));␊
␉memcpy(&bootArgsLegacy->Video, &bootArgs->VideoV1, sizeof(Boot_VideoV1));␊
␊
␉bootArgsLegacy->MemoryMap = bootArgs->MemoryMap;␊
␉bootArgsLegacy->MemoryMapSize = bootArgs->MemoryMapSize;␊
trunk/i386/libsaio/bootargs.h
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* Video information.. ␊
*/␊
␊
struct Boot_Video {␊
struct Boot_VideoV1 {␊
␉uint32_t␉v_baseAddr;␉/* Base address of video memory */␊
␉uint32_t␉v_display;␉/* Display Code (if Applicable */␊
␉uint32_t␉v_rowBytes;␉/* Number of bytes per pixel row */␊
␉uint32_t␉v_height;␉/* Height */␊
␉uint32_t␉v_depth;␉/* Pixel Depth */␊
};␊
typedef struct Boot_VideoV1␉Boot_VideoV1;␊
␊
struct Boot_Video␊
{␊
␉uint32_t␉v_display;␉␉// Display Code (if Applicable).␊
␉uint32_t␉v_rowBytes;␉␉// Number of bytes per pixel row.␊
␉uint32_t␉v_width;␉␉// Width.␊
␉uint32_t␉v_height;␉␉// Height.␊
␉uint32_t␉v_depth;␉␉// Pixel Depth.␊
␉uint32_t␉v_resv[7];␉␉// Reserved.␊
␉uint64_t␉v_baseAddr;␉␉// Base address (64-bit) of video memory.␊
};␊
typedef struct Boot_Video␉Boot_Video;␊
␊
/* Values for v_display */␊
␉␉CSR_ALLOW_ANY_RECOVERY_OS | \␊
␉␉CSR_ALLOW_UNAPPROVED_KEXTS)␊
␊
/* CSR capabilities that a booter can give to the system */␊
#define CSR_CAPABILITY_UNLIMITED␉␉␉(1 << 0)␊
#define CSR_CAPABILITY_CONFIG␉␉␉␉(1 << 1)␊
#define CSR_CAPABILITY_APPLE_INTERNAL␉␉␉(1 << 2)␊
␊
#define CSR_VALID_CAPABILITIES (CSR_CAPABILITY_UNLIMITED | CSR_CAPABILITY_CONFIG | CSR_CAPABILITY_APPLE_INTERNAL)␊
␊
typedef struct boot_args␊
{␊
uint16_t Revision;␉/* Revision of boot_args structure */␊
uint32_t MemoryMapDescriptorSize;␊
uint32_t MemoryMapDescriptorVersion;␊
␊
Boot_Video␉Video;␉␉/* Video Information */␊
Boot_VideoV1␉VideoV1;␉␉/* Video Information */␊
␊
uint32_t deviceTreeP;␉ /* Physical address of flattened device tree */␊
uint32_t deviceTreeLength; /* Length of flattened tree */␊
uint32_t boot_SMC_plimit;␊
uint16_t␉bootProgressMeterStart;␊
uint16_t␉bootProgressMeterEnd;␊
uint32_t __reserved4[726];␊
␊
Boot_Video Video; /* Video Information */␊
␊
uint32_t␉apfsDataStart;␉␉␉␉␉␉// Physical address of apfs volume key structure.␊
uint32_t␉apfsDataSize;␊
␊
uint32_t __reserved4[710];␊
␊
} boot_args;␊
␊
typedef struct boot_args_legacy␊
uint32_t MemoryMapDescriptorSize;␊
uint32_t MemoryMapDescriptorVersion;␊
␊
Boot_Video␉Video;␉␉/* Video Information */␊
Boot_VideoV1␉Video;␉␉/* Video Information */␊
␊
uint32_t deviceTreeP;␉ /* Physical address of flattened device tree */␊
uint32_t deviceTreeLength; /* Length of flattened tree */␊
branches/ErmaC/Enoch/i386/libsaio/bootstruct.c
134134
135135
136136
137
137
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143
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␉}␊
␉else␊
␉{␊
␉␉// for 10.7 10.8 10.9 10.10 10.11 10.12 10.13␊
␉␉// for 10.7 10.8 10.9 10.10 10.11 10.12 10.13 10.14␊
␉␉void *oldAddr = bootArgs;␊
␉␉bootArgs = (boot_args *)AllocateKernelMemory(sizeof(boot_args));␊
␉␉bcopy(oldAddr, bootArgs, sizeof(boot_args));␊
␉}␊
␊
␉// 10.12 and 10.13 new bootArgs?␊
␉// 10.12, 10.13 and 10.14 new bootArgs?␊
}␊
␊
//==============================================================================␊
␉bootArgs->deviceTreeP = (uint32_t)addr;␊
␉bootArgs->deviceTreeLength = size;␊
␊
␉//␊
␉// MinusZwei:␊
␉// Dump the new video struct fields in the old one.␊
␉// This will avoid a black screen issue with OS X between 10.8 and 10.11␊
␉//␊
␉// In order to be 100% safe, the new struct fields will also be seroed␊
␉// afterwards.␊
␉//␊
␉if ( MacOSVerCurrent < MacOSVer2Int("10.12") )␊
␉{␊
␉␉bootArgs->VideoV1.v_baseAddr = bootArgs->Video.v_baseAddr;␊
␉␉bootArgs->VideoV1.v_display = bootArgs->Video.v_display;␊
␉␉bootArgs->VideoV1.v_rowBytes = bootArgs->Video.v_rowBytes;␊
␉␉bootArgs->VideoV1.v_width = bootArgs->Video.v_width;␊
␉␉bootArgs->VideoV1.v_height = bootArgs->Video.v_height;␊
␉␉bootArgs->VideoV1.v_depth = bootArgs->Video.v_depth;␊
␊
␉␉bzero(&bootArgs->Video, sizeof(Boot_Video));␊
␊
␉␉bootArgs->apfsDataStart = 0;␊
␉␉bootArgs->apfsDataSize = 0;␊
␉}␊
␊
␉// Copy BootArgs values to older structure␊
␊
␉memcpy(&bootArgsLegacy->CommandLine, &bootArgs->CommandLine, BOOT_LINE_LENGTH);␊
␉memcpy(&bootArgsLegacy->Video, &bootArgs->Video, sizeof(Boot_Video));␊
␉memcpy(&bootArgsLegacy->Video, &bootArgs->VideoV1, sizeof(Boot_VideoV1));␊
␊
␉bootArgsLegacy->MemoryMap = bootArgs->MemoryMap;␊
␉bootArgsLegacy->MemoryMapSize = bootArgs->MemoryMapSize;␊
branches/ErmaC/Enoch/i386/libsaio/bootargs.h
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* Video information.. ␊
*/␊
␊
struct Boot_Video {␊
struct Boot_VideoV1 {␊
␉uint32_t␉v_baseAddr;␉/* Base address of video memory */␊
␉uint32_t␉v_display;␉/* Display Code (if Applicable */␊
␉uint32_t␉v_rowBytes;␉/* Number of bytes per pixel row */␊
␉uint32_t␉v_height;␉/* Height */␊
␉uint32_t␉v_depth;␉/* Pixel Depth */␊
};␊
typedef struct Boot_VideoV1␉Boot_VideoV1;␊
␊
struct Boot_Video␊
{␊
␉uint32_t␉v_display;␉␉// Display Code (if Applicable).␊
␉uint32_t␉v_rowBytes;␉␉// Number of bytes per pixel row.␊
␉uint32_t␉v_width;␉␉// Width.␊
␉uint32_t␉v_height;␉␉// Height.␊
␉uint32_t␉v_depth;␉␉// Pixel Depth.␊
␉uint32_t␉v_resv[7];␉␉// Reserved.␊
␉uint64_t␉v_baseAddr;␉␉// Base address (64-bit) of video memory.␊
};␊
typedef struct Boot_Video␉Boot_Video;␊
␊
/* Values for v_display */␊
␉␉CSR_ALLOW_ANY_RECOVERY_OS | \␊
␉␉CSR_ALLOW_UNAPPROVED_KEXTS)␊
␊
/* CSR capabilities that a booter can give to the system */␊
#define CSR_CAPABILITY_UNLIMITED␉␉␉(1 << 0)␊
#define CSR_CAPABILITY_CONFIG␉␉␉␉(1 << 1)␊
#define CSR_CAPABILITY_APPLE_INTERNAL␉␉␉(1 << 2)␊
␊
#define CSR_VALID_CAPABILITIES (CSR_CAPABILITY_UNLIMITED | CSR_CAPABILITY_CONFIG | CSR_CAPABILITY_APPLE_INTERNAL)␊
␊
typedef struct boot_args␊
{␊
uint16_t Revision;␉/* Revision of boot_args structure */␊
uint32_t MemoryMapDescriptorSize;␊
uint32_t MemoryMapDescriptorVersion;␊
␊
Boot_Video␉Video;␉␉/* Video Information */␊
Boot_VideoV1␉VideoV1;␉␉/* Video Information */␊
␊
uint32_t deviceTreeP;␉ /* Physical address of flattened device tree */␊
uint32_t deviceTreeLength; /* Length of flattened tree */␊
uint32_t boot_SMC_plimit;␊
uint16_t␉bootProgressMeterStart;␊
uint16_t␉bootProgressMeterEnd;␊
uint32_t __reserved4[726];␊
␊
Boot_Video Video; /* Video Information */␊
␊
uint32_t␉apfsDataStart;␉␉␉␉␉␉// Physical address of apfs volume key structure.␊
uint32_t␉apfsDataSize;␊
␊
uint32_t __reserved4[710];␊
␊
} boot_args;␊
␊
typedef struct boot_args_legacy␊
uint32_t MemoryMapDescriptorSize;␊
uint32_t MemoryMapDescriptorVersion;␊
␊
Boot_Video␉Video;␉␉/* Video Information */␊
Boot_VideoV1␉Video;␉␉/* Video Information */␊
␊
uint32_t deviceTreeP;␉ /* Physical address of flattened device tree */␊
uint32_t deviceTreeLength; /* Length of flattened tree */␊

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Revision: 2914