/* * descriptor/descriptor.c * This file is part of the ich9deblob utility from the libreboot project * * Copyright (C) 2014, 2015, 2019 Leah Rowe <info@minifree.org> * Copyright (C) 2014 Steve Shenton <sgsit@libreboot.org> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* * Provide descriptor related functions. */ /* structs describing the data in descriptor region */ #include "descriptor.h" /* * --------------------------------------------------------------------- * Descriptor related functions * --------------------------------------------------------------------- */ int validDescriptor(struct DESCRIPTORREGIONRECORD descriptorStruct) { if (descriptorStruct.flValSig.signature==0x0FF0A55A) return 1; return 0; } /* Set the Host CPU / BIOS region to have read-write access on all regions */ struct DESCRIPTORREGIONRECORD descriptorHostRegionsUnlocked(struct DESCRIPTORREGIONRECORD descriptorStruct) { descriptorStruct.masterAccessSection.flMstr1.fdRegionReadAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.biosRegionReadAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.meRegionReadAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.gbeRegionReadAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.pdRegionReadAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.fdRegionWriteAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.biosRegionWriteAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.meRegionWriteAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.gbeRegionWriteAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.pdRegionWriteAccess = 0x1; return descriptorStruct; } /* Set flash chip read-only when using flashrom -p internal */ struct DESCRIPTORREGIONRECORD descriptorHostRegionsReadOnly(struct DESCRIPTORREGIONRECORD descriptorStruct) { descriptorStruct.masterAccessSection.flMstr1.fdRegionReadAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.biosRegionReadAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.meRegionReadAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.gbeRegionReadAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.pdRegionReadAccess = 0x1; descriptorStruct.masterAccessSection.flMstr1.fdRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr1.biosRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr1.meRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr1.gbeRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr1.pdRegionWriteAccess = 0x0; return descriptorStruct; } /* Set the ME to have *no* read-write access on any region */ struct DESCRIPTORREGIONRECORD descriptorMeRegionsForbidden(struct DESCRIPTORREGIONRECORD descriptorStruct) { descriptorStruct.masterAccessSection.flMstr2.fdRegionReadAccess = 0x0; descriptorStruct.masterAccessSection.flMstr2.biosRegionReadAccess = 0x0; descriptorStruct.masterAccessSection.flMstr2.meRegionReadAccess = 0x0; descriptorStruct.masterAccessSection.flMstr2.gbeRegionReadAccess = 0x0; descriptorStruct.masterAccessSection.flMstr2.pdRegionReadAccess = 0x0; descriptorStruct.masterAccessSection.flMstr2.fdRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr2.biosRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr2.meRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr2.gbeRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr2.pdRegionWriteAccess = 0x0; return descriptorStruct; } /* Disable (delete) the ME region */ struct DESCRIPTORREGIONRECORD descriptorMeRegionRemoved(struct DESCRIPTORREGIONRECORD descriptorStruct) { descriptorStruct.regionSection.flReg2.BASE = 0x1FFF; descriptorStruct.regionSection.flReg2.LIMIT = 0; return descriptorStruct; } /* Disable (delete) the Platform region */ struct DESCRIPTORREGIONRECORD descriptorPlatformRegionRemoved(struct DESCRIPTORREGIONRECORD descriptorStruct) { descriptorStruct.regionSection.flReg4.BASE = 0x1FFF; descriptorStruct.regionSection.flReg4.LIMIT = 0; return descriptorStruct; } /* Disable the ME in ICHSTRAP0 and MCHSTRAP0 */ struct DESCRIPTORREGIONRECORD descriptorDisableMe(struct DESCRIPTORREGIONRECORD descriptorStruct) { descriptorStruct.ichStraps.ichStrap0.meDisable = 1; descriptorStruct.mchStraps.mchStrap0.meDisable = 1; return descriptorStruct; } /* Disable the TPM in MCHSTRAP0 */ struct DESCRIPTORREGIONRECORD descriptorDisableTpm(struct DESCRIPTORREGIONRECORD descriptorStruct) { descriptorStruct.mchStraps.mchStrap0.tpmDisable = 1; return descriptorStruct; } /* Relocate the Gbe region to begin at 4KiB (immediately after the flash descriptor) */ struct DESCRIPTORREGIONRECORD descriptorMoveGbeToStart(struct DESCRIPTORREGIONRECORD descriptorStruct) { descriptorStruct.regionSection.flReg3.BASE = DESCRIPTORREGIONSIZE >> FLREGIONBITSHIFT; descriptorStruct.regionSection.flReg3.LIMIT = GBEREGIONSIZE_8K >> FLREGIONBITSHIFT; return descriptorStruct; } /* Disable (delete) the GbE region */ struct DESCRIPTORREGIONRECORD descriptorGbeRegionRemoved(struct DESCRIPTORREGIONRECORD descriptorStruct) { descriptorStruct.regionSection.flReg3.BASE = 0x1FFF; descriptorStruct.regionSection.flReg3.LIMIT = 0; return descriptorStruct; } /* BIOS Region begin after descriptor+gbe at first 12KiB, fills the rest of the image */ struct DESCRIPTORREGIONRECORD descriptorBiosRegionFillImageAfterGbe(struct DESCRIPTORREGIONRECORD descriptorStruct, unsigned int romSize) { descriptorStruct.regionSection.flReg1.BASE = (DESCRIPTORREGIONSIZE + GBEREGIONSIZE_8K) >> FLREGIONBITSHIFT; descriptorStruct.regionSection.flReg1.LIMIT = (romSize >> FLREGIONBITSHIFT) - 1; return descriptorStruct; } /* BIOS Region begin after descriptor at first 4KiB, fills the rest of the image */ struct DESCRIPTORREGIONRECORD descriptorBiosRegionFillImageAfterDescriptor(struct DESCRIPTORREGIONRECORD descriptorStruct, unsigned int romSize) { descriptorStruct.regionSection.flReg1.BASE = DESCRIPTORREGIONSIZE >> FLREGIONBITSHIFT; descriptorStruct.regionSection.flReg1.LIMIT = (romSize >> FLREGIONBITSHIFT) - 1; return descriptorStruct; } /* Set OEM string to "LIBERATE" */ struct DESCRIPTORREGIONRECORD descriptorOemString(struct DESCRIPTORREGIONRECORD descriptorStruct) { descriptorStruct.oemSection.magicString[0] = 0x4C; descriptorStruct.oemSection.magicString[1] = 0x49; descriptorStruct.oemSection.magicString[2] = 0x42; descriptorStruct.oemSection.magicString[3] = 0x45; descriptorStruct.oemSection.magicString[4] = 0x52; descriptorStruct.oemSection.magicString[5] = 0x41; descriptorStruct.oemSection.magicString[6] = 0x54; descriptorStruct.oemSection.magicString[7] = 0x45; return descriptorStruct; } /* Check whether a GbE region is defined by this descriptor. * Not thorough, but should work in most cases */ int descriptorDefinesGbeRegion(struct DESCRIPTORREGIONRECORD descriptorStruct) { if ( (descriptorStruct.regionSection.flReg3.BASE == 0x1FFF || descriptorStruct.regionSection.flReg3.BASE == 0xFFF) && (descriptorStruct.regionSection.flReg3.LIMIT == 0) ) return 0; /* has no GbE region */ else if ( descriptorStruct.ichStraps.ichStrap0.integratedGbe == 0 || descriptorStruct.ichStraps.ichStrap0.lanPhy == 0 ) return 0; /* has no GbE region */ else return 1; /* has a GbE region */ } /* Configure the BIOS and GbE regions, as required by libreboot. * Enable or disable the GbE region, based on what's in the descriptor */ struct DESCRIPTORREGIONRECORD librebootSetGbeBiosDescriptorRegions(struct DESCRIPTORREGIONRECORD descriptorStruct, unsigned int romSize) { if (descriptorDefinesGbeRegion(descriptorStruct)) { /* * set number of regions from 4 -> 2 (0 based, so 4 means 5 and 2 * means 3. We want 3 regions: descriptor, gbe and bios, in that order) */ descriptorStruct.flMaps.flMap0.NR = 2; /* Move GbE region to the start of the image (after the descriptor) */ descriptorStruct = descriptorMoveGbeToStart(descriptorStruct); /* BIOS region fills the remaining space */ descriptorStruct = descriptorBiosRegionFillImageAfterGbe(descriptorStruct, romSize); /* GbE region means that an Intel NIC is to be present */ descriptorStruct.ichStraps.ichStrap0.integratedGbe = 0x1; descriptorStruct.ichStraps.ichStrap0.lanPhy = 0x1; } else { /* * set number of regions from 4 -> 2 (0 based, so 4 means 5 and 1 * means 2. We want 2 regions: descriptor and bios, in that order) */ descriptorStruct.flMaps.flMap0.NR = 1; /* Disable the GbE region */ descriptorStruct = descriptorGbeRegionRemoved(descriptorStruct); /* BIOS region fills the remaining space, after the descriptor */ descriptorStruct = descriptorBiosRegionFillImageAfterDescriptor(descriptorStruct, romSize); /* No GbE region means that an onboard NIC is still used, but it's discrete (eg Broadcom) */ descriptorStruct.ichStraps.ichStrap0.integratedGbe = 0x0; descriptorStruct.ichStraps.ichStrap0.lanPhy = 0x0; } return descriptorStruct; } uint8_t componentDensity(unsigned int romSizeInBytes) { /* component density, see Component Section Record. page 848 in the datasheet */ switch (romSizeInBytes) { case ROMSIZE_512KB: return 0; case ROMSIZE_1MB: return 1; case ROMSIZE_2MB: return 2; case ROMSIZE_4MB: return 3; case ROMSIZE_8MB: return 4; case ROMSIZE_16MB: return 5; default: return 0x7; /* reserved value */ } } /* From a factory.rom image, create a modified descriptor region, suitable * for use by the libreboot project */ struct DESCRIPTORREGIONRECORD librebootDescriptorStructFromFactory(struct DESCRIPTORREGIONRECORD descriptorStruct, unsigned int romSize) { /* Enable or disable the GbE region, from what's in the descriptor */ descriptorStruct = librebootSetGbeBiosDescriptorRegions(descriptorStruct, romSize); /* Disable the ME/TPM and remove the ME/Platform regions: */ descriptorStruct = descriptorMeRegionRemoved(descriptorStruct); /* Disable the ME/TPM and remove the ME/Platform regions: */ descriptorStruct = descriptorPlatformRegionRemoved(descriptorStruct); /* Disable the ME itself, so that it doesn't try to start when this descriptor is in use */ descriptorStruct = descriptorDisableMe(descriptorStruct); /* Also disable the TPM, by default */ descriptorStruct = descriptorDisableTpm(descriptorStruct); return descriptorStruct; } /* * --------------------------------------------------------------------- * C code generator (self-writing code) * --------------------------------------------------------------------- */ /* * Generate a C (.h) header file for the C source file made by notCreatedCFileFromDescriptorStruct() * * Output it to a file. */ int notCreatedHFileForDescriptorCFile(char* outFileName, char* cFileName) { remove(outFileName); /* Remove the old file before continuing */ /* Open the file that will be written to */ FILE* fp = fopen(outFileName, "w+"); /* ------------------------------ */ fprintf(fp, "/* %s: generated C code from ich9deblob */\n", outFileName); fprintf(fp, "/* .h header file for the descriptor-generating C code (%s) */\n\n", cFileName); fprintf(fp, "#ifndef ICH9GEN_MKDESCRIPTOR_H\n"); fprintf(fp, "#define ICH9GEN_MKDESCRIPTOR_H\n\n"); fprintf(fp, "#include <stdio.h>\n"); fprintf(fp, "#include <string.h>\n"); fprintf(fp, "#include \"../descriptor/descriptor.h\"\n\n"); fprintf(fp, "struct DESCRIPTORREGIONRECORD generatedDescriptorStruct(unsigned int romSize, int hasGbe);\n"); fprintf(fp, "#endif\n"); /* ------------------------------ */ fclose(fp); /* Always close the file when done. */ return 0; } /* * Generate a C source file that initializes the same data from a given * 4KiB Descriptor data structure. * * Output it to a file. */ int notCreatedCFileFromDescriptorStruct(struct DESCRIPTORREGIONRECORD descriptorStruct, char* outFileName, char* headerFileName) { int i, j; remove(outFileName); /* Remove the old file before continuing */ /* Open the file that will be written to */ FILE* fp = fopen(outFileName, "w+"); /* ------------------------------ */ fprintf(fp, "/* %s: generated C code from ich9deblob */\n", outFileName); fprintf(fp, "/* .c source file for the descriptor-generating C code */\n\n"); fprintf(fp, "#include \"%s\"\n\n", headerFileName); fprintf(fp, "/* Generate a 4KiB Descriptor struct, with default values. */\n"); fprintf(fp, "/* Read ../descriptor/descriptor.h for an explanation of the default values used here */\n\n"); fprintf(fp, "struct DESCRIPTORREGIONRECORD generatedDescriptorStruct(unsigned int romSize, int hasGbe)\n"); fprintf(fp, "{\n"); fprintf(fp, " int i;\n"); fprintf(fp, " struct DESCRIPTORREGIONRECORD descriptorStruct;\n"); fprintf(fp, "\n"); /* Flash Valid Signature Register */ fprintf(fp, " /* Flash Valid Signature Register */\n"); fprintf(fp, " descriptorStruct.flValSig.signature = 0x%08x;\n", descriptorStruct.flValSig.signature); fprintf(fp, "\n"); /* Flash Map Registers */ fprintf(fp, " /* Flash Map Registers */\n"); fprintf(fp, " /* FLMAP0 */\n"); fprintf(fp, " descriptorStruct.flMaps.flMap0.FCBA = 0x%02x;\n", descriptorStruct.flMaps.flMap0.FCBA); fprintf(fp, " descriptorStruct.flMaps.flMap0.NC = 0x%01x;\n", descriptorStruct.flMaps.flMap0.NC); fprintf(fp, " descriptorStruct.flMaps.flMap0.reserved1 = 0x%02x;\n", descriptorStruct.flMaps.flMap0.reserved1); fprintf(fp, " descriptorStruct.flMaps.flMap0.FRBA = 0x%02x;\n", descriptorStruct.flMaps.flMap0.FRBA); fprintf(fp, " /* descriptorStruct.flMaps.flMap0.NR = 0x%01x; */ /* see ../descriptor/descriptor.c */\n", descriptorStruct.flMaps.flMap0.NR); fprintf(fp, " descriptorStruct.flMaps.flMap0.NR = hasGbe ? 0x2 : 0x1; /* see ../descriptor/descriptor.c */\n"); fprintf(fp, " descriptorStruct.flMaps.flMap0.reserved2 = 0x%02x;\n", descriptorStruct.flMaps.flMap0.reserved2); fprintf(fp, " /* FLMAP1 */\n"); fprintf(fp, " descriptorStruct.flMaps.flMap1.FMBA = 0x%02x;\n", descriptorStruct.flMaps.flMap1.FMBA); fprintf(fp, " descriptorStruct.flMaps.flMap1.NM = 0x%01x;\n", descriptorStruct.flMaps.flMap1.NM); fprintf(fp, " descriptorStruct.flMaps.flMap1.reserved = 0x%02x;\n", descriptorStruct.flMaps.flMap1.reserved); fprintf(fp, " descriptorStruct.flMaps.flMap1.FISBA = 0x%02x;\n", descriptorStruct.flMaps.flMap1.FISBA); fprintf(fp, " descriptorStruct.flMaps.flMap1.ISL = 0x%02x;\n", descriptorStruct.flMaps.flMap1.ISL); fprintf(fp, " /* FLMAP2 */\n"); fprintf(fp, " descriptorStruct.flMaps.flMap2.FMSBA = 0x%02x;\n", descriptorStruct.flMaps.flMap2.FMSBA); fprintf(fp, " descriptorStruct.flMaps.flMap2.MSL = 0x%02x;\n", descriptorStruct.flMaps.flMap2.MSL); fprintf(fp, " descriptorStruct.flMaps.flMap2.reserved = 0x%04x;\n", descriptorStruct.flMaps.flMap2.reserved); fprintf(fp, "\n"); /* Component Section Record */ fprintf(fp, " /* Component Section Record */\n"); fprintf(fp, " /* FLCOMP */\n"); fprintf(fp, " /* descriptorStruct.componentSection.flcomp.component1Density = 0x%01x; */\n", descriptorStruct.componentSection.flcomp.component1Density); fprintf(fp, " /* descriptorStruct.componentSection.flcomp.component2Density = 0x%01x; */\n", descriptorStruct.componentSection.flcomp.component2Density); fprintf(fp, " descriptorStruct.componentSection.flcomp.component1Density = componentDensity(romSize);\n"); fprintf(fp, " descriptorStruct.componentSection.flcomp.component2Density = componentDensity(romSize);\n"); fprintf(fp, " descriptorStruct.componentSection.flcomp.reserved1 = 0x%01x;\n", descriptorStruct.componentSection.flcomp.reserved1); fprintf(fp, " descriptorStruct.componentSection.flcomp.reserved2 = 0x%02x;\n", descriptorStruct.componentSection.flcomp.reserved2); fprintf(fp, " descriptorStruct.componentSection.flcomp.reserved3 = 0x%01x;\n", descriptorStruct.componentSection.flcomp.reserved3); fprintf(fp, " descriptorStruct.componentSection.flcomp.readClockFrequency = 0x%01x;\n", descriptorStruct.componentSection.flcomp.readClockFrequency); fprintf(fp, " descriptorStruct.componentSection.flcomp.fastReadSupport = 0x%01x;\n", descriptorStruct.componentSection.flcomp.fastReadSupport); fprintf(fp, " descriptorStruct.componentSection.flcomp.fastreadClockFrequency = 0x%01x;\n", descriptorStruct.componentSection.flcomp.fastreadClockFrequency); fprintf(fp, " descriptorStruct.componentSection.flcomp.writeEraseClockFrequency = 0x%01x;\n", descriptorStruct.componentSection.flcomp.writeEraseClockFrequency); fprintf(fp, " descriptorStruct.componentSection.flcomp.readStatusClockFrequency = 0x%01x;\n", descriptorStruct.componentSection.flcomp.readStatusClockFrequency); fprintf(fp, " descriptorStruct.componentSection.flcomp.reserved4 = 0x%01x;\n", descriptorStruct.componentSection.flcomp.reserved4); fprintf(fp, " /* FLILL */\n"); fprintf(fp, " descriptorStruct.componentSection.flill = 0x%08x;\n", descriptorStruct.componentSection.flill); fprintf(fp, " /* FLPB */\n"); fprintf(fp, " descriptorStruct.componentSection.flpb = 0x%08x;\n", descriptorStruct.componentSection.flpb); fprintf(fp, " /* Padding */\n"); for (i = 0; i < 36; i++) { if (descriptorStruct.componentSection.padding[i] != 0xFF) { for (j = 0; j < 36; j++) { fprintf(fp, " descriptorStruct.componentSection.padding[%d] = 0x%02x;\n", j, descriptorStruct.componentSection.padding[j]); } break; } else if (i == 35) { fprintf(fp, " for (i = 0; i < 36; i++) {\n"); fprintf(fp, " descriptorStruct.componentSection.padding[i] = 0xFF;\n"); fprintf(fp, " }\n"); break; } } fprintf(fp, "\n"); /* Flash Descriptor Region Section */ fprintf(fp, " /* Flash Descriptor Region Section */\n"); fprintf(fp, " /* FLREG0 (Descriptor) */\n"); fprintf(fp, " descriptorStruct.regionSection.flReg0.BASE = 0x%04x;\n", descriptorStruct.regionSection.flReg0.BASE); fprintf(fp, " descriptorStruct.regionSection.flReg0.reserved1 = 0x%01x;\n", descriptorStruct.regionSection.flReg0.reserved1); fprintf(fp, " descriptorStruct.regionSection.flReg0.LIMIT = 0x%04x;\n", descriptorStruct.regionSection.flReg0.LIMIT); fprintf(fp, " descriptorStruct.regionSection.flReg0.reserved2 = 0x%01x;\n", descriptorStruct.regionSection.flReg0.reserved2); fprintf(fp, " /* FLREG1 (BIOS) */\n"); fprintf(fp, " /* descriptorStruct.regionSection.flReg1.BASE = 0x%04x; */\n", descriptorStruct.regionSection.flReg1.BASE); fprintf(fp, " descriptorStruct.regionSection.flReg1.BASE = (DESCRIPTORREGIONSIZE + (hasGbe ? GBEREGIONSIZE_8K : 0)) >> FLREGIONBITSHIFT; /* see ../descriptor/descriptor.c */\n"); fprintf(fp, " descriptorStruct.regionSection.flReg1.reserved1 = 0x%01x;\n", descriptorStruct.regionSection.flReg1.reserved1); fprintf(fp, " /* descriptorStruct.regionSection.flReg1.LIMIT = 0x%04x; */\n", descriptorStruct.regionSection.flReg1.LIMIT); fprintf(fp, " descriptorStruct.regionSection.flReg1.LIMIT = ((romSize >> FLREGIONBITSHIFT) - 1); /* see ../descriptor/descriptor.c */\n"); fprintf(fp, " descriptorStruct.regionSection.flReg1.reserved2 = 0x%01x;\n", descriptorStruct.regionSection.flReg1.reserved2); fprintf(fp, " /* FLREG2 (ME) */\n"); fprintf(fp, " descriptorStruct.regionSection.flReg2.BASE = 0x%04x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.regionSection.flReg2.BASE); fprintf(fp, " descriptorStruct.regionSection.flReg2.reserved1 = 0x%01x;\n", descriptorStruct.regionSection.flReg2.reserved1); fprintf(fp, " descriptorStruct.regionSection.flReg2.LIMIT = 0x%04x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.regionSection.flReg2.LIMIT); fprintf(fp, " descriptorStruct.regionSection.flReg2.reserved2 = 0x%01x;\n", descriptorStruct.regionSection.flReg2.reserved2); fprintf(fp, " /* FLREG3 (Gbe) */\n"); fprintf(fp, " /* descriptorStruct.regionSection.flReg3.BASE = 0x%04x; */\n", descriptorStruct.regionSection.flReg3.BASE); fprintf(fp, " descriptorStruct.regionSection.flReg3.BASE = hasGbe ? (DESCRIPTORREGIONSIZE >> FLREGIONBITSHIFT) : 0x1fff; /* see ../descriptor/descriptor.c */\n"); fprintf(fp, " descriptorStruct.regionSection.flReg3.reserved1 = 0x%01x;\n", descriptorStruct.regionSection.flReg3.reserved1); fprintf(fp, " /* descriptorStruct.regionSection.flReg3.LIMIT = 0x%04x; */\n", descriptorStruct.regionSection.flReg3.LIMIT); fprintf(fp, " descriptorStruct.regionSection.flReg3.LIMIT = hasGbe ? (GBEREGIONSIZE_8K >> FLREGIONBITSHIFT) : 0x0000; /* see ../descriptor/descriptor.c */\n"); fprintf(fp, " descriptorStruct.regionSection.flReg3.reserved2 = 0x%01x;\n", descriptorStruct.regionSection.flReg3.reserved2); fprintf(fp, " /* FLREG4 (Platform) */\n"); fprintf(fp, " descriptorStruct.regionSection.flReg4.BASE = 0x%04x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.regionSection.flReg4.BASE); fprintf(fp, " descriptorStruct.regionSection.flReg4.reserved1 = 0x%01x;\n", descriptorStruct.regionSection.flReg4.reserved1); fprintf(fp, " descriptorStruct.regionSection.flReg4.LIMIT = 0x%04x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.regionSection.flReg4.LIMIT); fprintf(fp, " descriptorStruct.regionSection.flReg4.reserved2 = 0x%01x;\n", descriptorStruct.regionSection.flReg4.reserved2); fprintf(fp, " /* Padding */\n"); for (i = 0; i < 12; i++) { if (descriptorStruct.regionSection.padding[i] != 0xFF) { for (j = 0; j < 12; j++) { fprintf(fp, " descriptorStruct.regionSection.padding[%d] = 0x%02x;\n", j, descriptorStruct.regionSection.padding[j]); } break; } else if (i == 11) { fprintf(fp, " for (i = 0; i < 12; i++) {\n"); fprintf(fp, " descriptorStruct.regionSection.padding[i] = 0xFF;\n"); fprintf(fp, " }\n"); break; } } fprintf(fp, "\n"); /* Master Access Section */ fprintf(fp, " /* Master Access Section */\n"); fprintf(fp, " /* FLMSTR1 (Host CPU / BIOS) */\n"); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.requesterId = 0x%04x;\n", descriptorStruct.masterAccessSection.flMstr1.requesterId); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.fdRegionReadAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr1.fdRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.biosRegionReadAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr1.biosRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.meRegionReadAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr1.meRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.gbeRegionReadAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr1.gbeRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.pdRegionReadAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr1.pdRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.reserved1 = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr1.reserved1); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.fdRegionWriteAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr1.fdRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.biosRegionWriteAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr1.biosRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.meRegionWriteAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr1.meRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.gbeRegionWriteAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr1.gbeRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.pdRegionWriteAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr1.pdRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr1.reserved2 = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr1.reserved2); fprintf(fp, " /* FLMSTR2 (ME) */\n"); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.requesterId = 0x%04x;\n", descriptorStruct.masterAccessSection.flMstr2.requesterId); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.fdRegionReadAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr2.fdRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.biosRegionReadAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr2.biosRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.meRegionReadAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr2.meRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.gbeRegionReadAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr2.gbeRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.pdRegionReadAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr2.pdRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.reserved1 = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr2.reserved1); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.fdRegionWriteAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr2.fdRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.biosRegionWriteAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr2.biosRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.meRegionWriteAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr2.meRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.gbeRegionWriteAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr2.gbeRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.pdRegionWriteAccess = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.masterAccessSection.flMstr2.pdRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr2.reserved2 = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr2.reserved2); fprintf(fp, " /* FLMSTR3 (Gbe) */\n"); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.requesterId = 0x%04x;\n", descriptorStruct.masterAccessSection.flMstr3.requesterId); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.fdRegionReadAccess = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.fdRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.biosRegionReadAccess = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.biosRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.meRegionReadAccess = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.meRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.gbeRegionReadAccess = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.gbeRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.pdRegionReadAccess = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.pdRegionReadAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.reserved1 = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.reserved1); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.fdRegionWriteAccess = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.fdRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.biosRegionWriteAccess = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.biosRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.meRegionWriteAccess = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.meRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.gbeRegionWriteAccess = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.gbeRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.pdRegionWriteAccess = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.pdRegionWriteAccess); fprintf(fp, " descriptorStruct.masterAccessSection.flMstr3.reserved2 = 0x%01x;\n", descriptorStruct.masterAccessSection.flMstr3.reserved2); fprintf(fp, " /* Padding */\n"); for (i = 0; i < 148; i++) { if (descriptorStruct.masterAccessSection.padding[i] != 0xFF) { for (j = 0; j < 148; j++) { fprintf(fp, " descriptorStruct.masterAccessSection.padding[%d] = 0x%02x;\n", j, descriptorStruct.masterAccessSection.padding[j]); } break; } else if (i == 147) { fprintf(fp, " for (i = 0; i < 148; i++) {\n"); fprintf(fp, " descriptorStruct.masterAccessSection.padding[i] = 0xFF;\n"); fprintf(fp, " }\n"); break; } } fprintf(fp, "\n"); /* ICH straps */ fprintf(fp, " /* ICH straps */\n"); fprintf(fp, " /* ICHSTRAP0 */\n"); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.meDisable = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.ichStraps.ichStrap0.meDisable); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.reserved1 = 0x%02x;\n", descriptorStruct.ichStraps.ichStrap0.reserved1); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.tcoMode = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap0.tcoMode); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.smBusAddress = 0x%02x;\n", descriptorStruct.ichStraps.ichStrap0.smBusAddress); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.bmcMode = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap0.bmcMode); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.tripPointSelect = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap0.tripPointSelect); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.reserved2 = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap0.reserved2); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.integratedGbe = hasGbe ? 0x1 : 0x0;\n"); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.lanPhy = hasGbe ? 0x1 : 0x0;\n"); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.reserved3 = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap0.reserved3); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.dmiRequesterId = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap0.dmiRequesterId); fprintf(fp, " descriptorStruct.ichStraps.ichStrap0.smBus2Address = 0x%02x;\n", descriptorStruct.ichStraps.ichStrap0.smBus2Address); fprintf(fp, " /* ICHSTRAP1 */\n"); fprintf(fp, " descriptorStruct.ichStraps.ichStrap1.northMlink = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap1.northMlink); fprintf(fp, " descriptorStruct.ichStraps.ichStrap1.southMlink = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap1.southMlink); fprintf(fp, " descriptorStruct.ichStraps.ichStrap1.meSmbus = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap1.meSmbus); fprintf(fp, " descriptorStruct.ichStraps.ichStrap1.sstDynamic = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap1.sstDynamic); fprintf(fp, " descriptorStruct.ichStraps.ichStrap1.reserved1 = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap1.reserved1); fprintf(fp, " descriptorStruct.ichStraps.ichStrap1.northMlink2 = 0x%01x;\n", descriptorStruct.ichStraps.ichStrap1.northMlink2); fprintf(fp, " descriptorStruct.ichStraps.ichStrap1.reserved2 = 0x%02x;\n", descriptorStruct.ichStraps.ichStrap1.reserved2); fprintf(fp, " descriptorStruct.ichStraps.ichStrap1.reserved3 = 0x%04x;\n", descriptorStruct.ichStraps.ichStrap1.reserved3); fprintf(fp, " /* Padding */\n"); for (i = 0; i < 248; i++) { if (descriptorStruct.ichStraps.padding[i] != 0xFF) { for (j = 0; j < 248; j++) { fprintf(fp, " descriptorStruct.ichStraps.padding[%d] = 0x%02x;\n", j, descriptorStruct.ichStraps.padding[j]); } break; } else if (i == 247) { fprintf(fp, " for (i = 0; i < 248; i++) {\n"); fprintf(fp, " descriptorStruct.ichStraps.padding[i] = 0xFF;\n"); fprintf(fp, " }\n"); break; } } fprintf(fp, "\n"); /* MCH straps */ fprintf(fp, " /* MCH straps */\n"); fprintf(fp, " /* MCHSTRAP0 */\n"); fprintf(fp, " descriptorStruct.mchStraps.mchStrap0.meDisable = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.mchStraps.mchStrap0.meDisable); fprintf(fp, " descriptorStruct.mchStraps.mchStrap0.meBootFromFlash = 0x%01x;\n", descriptorStruct.mchStraps.mchStrap0.meBootFromFlash); fprintf(fp, " descriptorStruct.mchStraps.mchStrap0.tpmDisable = 0x%01x; /* see ../descriptor/descriptor.c */\n", descriptorStruct.mchStraps.mchStrap0.tpmDisable); fprintf(fp, " descriptorStruct.mchStraps.mchStrap0.reserved1 = 0x%01x;\n", descriptorStruct.mchStraps.mchStrap0.reserved1); fprintf(fp, " descriptorStruct.mchStraps.mchStrap0.spiFingerprint = 0x%01x;\n", descriptorStruct.mchStraps.mchStrap0.spiFingerprint); fprintf(fp, " descriptorStruct.mchStraps.mchStrap0.meAlternateDisable = 0x%01x;\n", descriptorStruct.mchStraps.mchStrap0.meAlternateDisable); fprintf(fp, " descriptorStruct.mchStraps.mchStrap0.reserved2 = 0x%02x;\n", descriptorStruct.mchStraps.mchStrap0.reserved2); fprintf(fp, " descriptorStruct.mchStraps.mchStrap0.reserved3 = 0x%04x;\n", descriptorStruct.mchStraps.mchStrap0.reserved3); fprintf(fp, " /* Padding */\n"); for (i = 0; i < 3292; i++) { if (descriptorStruct.mchStraps.padding[i] != 0xFF) { for (j = 0; j < 3292; j++) { fprintf(fp, " descriptorStruct.mchStraps.padding[%d] = 0x%02x;\n", j, descriptorStruct.mchStraps.padding[j]); } break; } else if (i == 3291) { fprintf(fp, " for (i = 0; i < 3292; i++) {\n"); fprintf(fp, " descriptorStruct.mchStraps.padding[i] = 0xFF;\n"); fprintf(fp, " }\n"); break; } } fprintf(fp, "\n"); /* ME VSCC Table */ fprintf(fp, " /* ME VSCC Table */\n"); fprintf(fp, " descriptorStruct.meVsccTable.jid0 = 0x%08x;\n", descriptorStruct.meVsccTable.jid0); fprintf(fp, " descriptorStruct.meVsccTable.vscc0 = 0x%08x;\n", descriptorStruct.meVsccTable.vscc0); fprintf(fp, " descriptorStruct.meVsccTable.jid1 = 0x%08x;\n", descriptorStruct.meVsccTable.jid1); fprintf(fp, " descriptorStruct.meVsccTable.vscc1 = 0x%08x;\n", descriptorStruct.meVsccTable.vscc1); fprintf(fp, " descriptorStruct.meVsccTable.jid2 = 0x%08x;\n", descriptorStruct.meVsccTable.jid2); fprintf(fp, " descriptorStruct.meVsccTable.vscc2 = 0x%08x;\n", descriptorStruct.meVsccTable.vscc2); fprintf(fp, " /* Padding */\n"); for (i = 0; i < 4; i++) { if (descriptorStruct.meVsccTable.padding[i] != 0xFF) { for (j = 0; j < 4; j++) { fprintf(fp, " descriptorStruct.meVsccTable.padding[%d] = 0x%02x;\n", j, descriptorStruct.meVsccTable.padding[j]); } break; } else if (i == 3) { fprintf(fp, " for (i = 0; i < 4; i++) {\n"); fprintf(fp, " descriptorStruct.meVsccTable.padding[i] = 0xFF;\n"); fprintf(fp, " }\n"); break; } } fprintf(fp, "\n"); /* Descriptor Map 2 Record */ fprintf(fp, " /* Descriptor Map 2 Record */\n"); fprintf(fp, " descriptorStruct.descriptor2Map.meVsccTableBaseAddress = 0x%02x;\n", descriptorStruct.descriptor2Map.meVsccTableBaseAddress); fprintf(fp, " descriptorStruct.descriptor2Map.meVsccTableLength = 0x%02x;\n", descriptorStruct.descriptor2Map.meVsccTableLength); fprintf(fp, " descriptorStruct.descriptor2Map.reserved = 0x%04x;\n", descriptorStruct.descriptor2Map.reserved); fprintf(fp, "\n"); /* OEM section */ fprintf(fp, " /* OEM section */\n"); fprintf(fp, " /* see ../descriptor/descriptor.c */\n"); fprintf(fp, " /* Magic String (ascii characters) */\n"); for(i = 0; i < 8; i++) { fprintf(fp, " descriptorStruct.oemSection.magicString[%d] = 0x%02x;\n", i, descriptorStruct.oemSection.magicString[i]); } fprintf(fp, " /* Padding */\n"); for (i = 0; i < 248; i++) { if (descriptorStruct.oemSection.padding[i] != 0xFF) { for (j = 0; j < 248; j++) { fprintf(fp, " descriptorStruct.oemSection.padding[%d] = 0x%02x;\n", j, descriptorStruct.oemSection.padding[j]); } break; } else if (i == 247) { fprintf(fp, " for (i = 0; i < 248; i++) {\n"); fprintf(fp, " descriptorStruct.oemSection.padding[i] = 0xFF;\n"); fprintf(fp, " }\n"); break; } } fprintf(fp, "\n"); fprintf(fp, " return descriptorStruct;\n"); fprintf(fp, "}\n\n"); /* ------------------------------ */ fclose(fp); /* Always close the file when done. */ return 0; } /* * --------------------------------------------------------------------- * Debugging functions: * --------------------------------------------------------------------- */ /* * show debugging info: descriptor region boundaries, in a 4KB struct. */ void printDescriptorRegionLocations(struct DESCRIPTORREGIONRECORD descriptorStruct, char* romName) { printf("\n"); /* Descriptor region */ printf( "%s: Descriptor start block: %08x ; Descriptor end block: %08x\n", romName, descriptorStruct.regionSection.flReg0.BASE << FLREGIONBITSHIFT, descriptorStruct.regionSection.flReg0.LIMIT << FLREGIONBITSHIFT ); /* BIOS region */ printf( "%s: BIOS start block: %08x ; BIOS end block: %08x\n", romName, descriptorStruct.regionSection.flReg1.BASE << FLREGIONBITSHIFT, descriptorStruct.regionSection.flReg1.LIMIT << FLREGIONBITSHIFT ); /* ME region */ printf( "%s: ME start block: %08x ; ME end block: %08x\n", romName, descriptorStruct.regionSection.flReg2.BASE << FLREGIONBITSHIFT, descriptorStruct.regionSection.flReg2.LIMIT << FLREGIONBITSHIFT ); /* GBe region */ printf( "%s: GBe start block: %08x ; GBe end block: %08x\n", romName, descriptorStruct.regionSection.flReg3.BASE << FLREGIONBITSHIFT, descriptorStruct.regionSection.flReg3.LIMIT << FLREGIONBITSHIFT ); /* Platform region */ printf( "%s: Platform start block: %08x ; Platform end block: %08x\n", romName, descriptorStruct.regionSection.flReg4.BASE << FLREGIONBITSHIFT, descriptorStruct.regionSection.flReg4.LIMIT << FLREGIONBITSHIFT ); return; } /* This simply outputs (as strings) the contents of the descriptor */ /* This outputs in pandoc-flavoured Markdown */ int showDescriptorData(struct DESCRIPTORREGIONRECORD descriptorStruct) { int i, j; printf("DESCRIPTOR REGION\n"); printf("=================\n\n"); printf("Flash Valid Signature Register\n"); printf("------------------------------\n\n"); printf("Signature = 0x%08x\n\n", descriptorStruct.flValSig.signature); printf("Flash Map Registers\n"); printf("-------------------\n\n"); printf("FLMAP0:\n\n"); printf("- FCBA = 0x%02x\n", descriptorStruct.flMaps.flMap0.FCBA); printf("- NC = 0x%01x\n", descriptorStruct.flMaps.flMap0.NC); printf("- Reserved1 = 0x%02x\n", descriptorStruct.flMaps.flMap0.reserved1); printf("- FRBA = 0x%02x\n", descriptorStruct.flMaps.flMap0.FRBA); printf("- NR = 0x%01x\n", descriptorStruct.flMaps.flMap0.NR); printf("- Reserved2 = 0x%02x\n\n", descriptorStruct.flMaps.flMap0.reserved2); printf("FLMAP1:\n\n"); printf("- FMBA = 0x%02x\n", descriptorStruct.flMaps.flMap1.FMBA); printf("- NM = 0x%01x\n", descriptorStruct.flMaps.flMap1.NM); printf("- Reserved = 0x%02x\n", descriptorStruct.flMaps.flMap1.reserved); printf("- FISBA = 0x%02x\n", descriptorStruct.flMaps.flMap1.FISBA); printf("- ISL = 0x%02x\n\n", descriptorStruct.flMaps.flMap1.ISL); printf("FLMAP2:\n\n"); printf("- FMSBA = 0x%02x\n", descriptorStruct.flMaps.flMap2.FMSBA); printf("- MSL = 0x%02x\n", descriptorStruct.flMaps.flMap2.MSL); printf("- Reserved = 0x%04x\n\n", descriptorStruct.flMaps.flMap2.reserved); printf("Component Section Record\n"); printf("------------------------\n\n"); printf("FLCOMP:\n\n"); printf("- *Component 1* Density = 0x%01x\n", descriptorStruct.componentSection.flcomp.component1Density); printf("- *Component 2* Density = 0x%01x\n", descriptorStruct.componentSection.flcomp.component2Density); printf("- Reserved1 = 0x%01x\n", descriptorStruct.componentSection.flcomp.reserved1); printf("- Reserved2 = 0x%02x\n", descriptorStruct.componentSection.flcomp.reserved2); printf("- Reserved3 = 0x%01x\n", descriptorStruct.componentSection.flcomp.reserved3); printf("- *Read* Clock Frequency = 0x%01x\n", descriptorStruct.componentSection.flcomp.readClockFrequency); printf("- *Fast Read* Support = 0x%01x\n", descriptorStruct.componentSection.flcomp.fastReadSupport); printf("- *Fast Read* Clock Frequency = 0x%01x\n", descriptorStruct.componentSection.flcomp.fastreadClockFrequency); printf("- *Write/Erase* Clock Frequency = 0x%01x\n", descriptorStruct.componentSection.flcomp.writeEraseClockFrequency); printf("- *Read Status* Clock Frequency = 0x%01x\n", descriptorStruct.componentSection.flcomp.readStatusClockFrequency); printf("- Reserved4 = 0x%01x\n\n", descriptorStruct.componentSection.flcomp.reserved4); printf("FLILL:\n\n"); printf("- flill = 0x%08x\n\n", descriptorStruct.componentSection.flill); printf("FLPB:\n\n"); printf("- flpb = 0x%08x\n\n", descriptorStruct.componentSection.flpb); printf("Padding:\n\n"); for (i = 0; i < 36; i++) { if (descriptorStruct.componentSection.padding[i] != 0xFF) { for (j = 0; j < 36; j++) { printf("- Offset %d = 0x%02x\n", j, descriptorStruct.componentSection.padding[j]); } break; } else if (i == 35) { printf("- Every offset has a value of 0xFF\n"); break; } } printf("\n"); printf("Flash Descriptor Region Section\n"); printf("-------------------------------\n\n"); printf("This section defines the size and location of each region.\n\n"); printf("FLREG0 (Descriptor):\n\n"); printf("- flReg0BASE = 0x%04x\n", descriptorStruct.regionSection.flReg0.BASE); printf("- reserved1 = 0x%01x\n", descriptorStruct.regionSection.flReg0.reserved1); printf("- LIMIT = 0x%04x\n", descriptorStruct.regionSection.flReg0.LIMIT); printf("- reserved2 = 0x%01x\n\n", descriptorStruct.regionSection.flReg0.reserved2); printf("FLREG1 (BIOS):\n\n"); printf("- BASE = 0x%04x\n", descriptorStruct.regionSection.flReg1.BASE); printf("- reserved1 = 0x%01x\n", descriptorStruct.regionSection.flReg1.reserved1); printf("- LIMIT = 0x%04x\n", descriptorStruct.regionSection.flReg1.LIMIT); printf("- reserved2 = 0x%01x\n\n", descriptorStruct.regionSection.flReg1.reserved2); printf("FLREG2 (ME):\n\n"); printf("- BASE = 0x%04x\n", descriptorStruct.regionSection.flReg2.BASE); printf("- reserved1 = 0x%01x\n", descriptorStruct.regionSection.flReg2.reserved1); printf("- LIMIT = 0x%04x\n", descriptorStruct.regionSection.flReg2.LIMIT); printf("- reserved2 = 0x%01x\n\n", descriptorStruct.regionSection.flReg2.reserved2); printf("FLREG3 (Gbe):\n\n"); printf("- BASE = 0x%04x\n", descriptorStruct.regionSection.flReg3.BASE); printf("- reserved1 = 0x%01x\n", descriptorStruct.regionSection.flReg3.reserved1); printf("- LIMIT = 0x%04x\n", descriptorStruct.regionSection.flReg3.LIMIT); printf("- reserved2 = 0x%01x\n\n", descriptorStruct.regionSection.flReg3.reserved2); printf("FLREG4 (Platform):\n\n"); printf("- BASE = 0x%04x\n", descriptorStruct.regionSection.flReg4.BASE); printf("- reserved1 = 0x%01x\n", descriptorStruct.regionSection.flReg4.reserved1); printf("- LIMIT = 0x%04x\n", descriptorStruct.regionSection.flReg4.LIMIT); printf("- reserved2 = 0x%01x\n\n", descriptorStruct.regionSection.flReg4.reserved2); printf("Padding:\n\n"); for (i = 0; i < 12; i++) { if (descriptorStruct.regionSection.padding[i] != 0xFF) { for (j = 0; j < 12; j++) { printf("- Offset %d = 0x%02x\n", j, descriptorStruct.regionSection.padding[j]); } break; } else if (i == 11) { printf("- Every offset has a value of 0xFF\n"); break; } } printf("\n"); /* Master Access Section */ printf("Master Access Section\n"); printf("---------------------\n\n"); printf("FLMSTR1 (Host CPU / BIOS, e.g. flashrom running in GNU+Linux):\n\n"); printf("*This is the part requiring modification for write protect!*\n\n"); printf("- Requester ID = 0x%04x\n", descriptorStruct.masterAccessSection.flMstr1.requesterId); printf("- *Descriptor region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr1.fdRegionReadAccess); printf("- *BIOS region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr1.biosRegionReadAccess); printf("- *ME region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr1.meRegionReadAccess); printf("- *GbE region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr1.gbeRegionReadAccess); printf("- *Platform region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr1.pdRegionReadAccess); printf("- Reserved1 = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr1.reserved1); printf("- *Descriptor region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr1.fdRegionWriteAccess); printf("- *BIOS region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr1.biosRegionWriteAccess); printf("- *ME region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr1.meRegionWriteAccess); printf("- *GbE region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr1.gbeRegionWriteAccess); printf("- *Platform region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr1.pdRegionWriteAccess); printf("- reserved2 = 0x%01x\n\n", descriptorStruct.masterAccessSection.flMstr1.reserved2); printf("FLMSTR2 (ME):\n\n"); printf("- Requester ID = 0x%04x\n", descriptorStruct.masterAccessSection.flMstr2.requesterId); printf("- *Descriptor region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr2.fdRegionReadAccess); printf("- *BIOS region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr2.biosRegionReadAccess); printf("- *ME region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr2.meRegionReadAccess); printf("- *GbE region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr2.gbeRegionReadAccess); printf("- *Platform region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr2.pdRegionReadAccess); printf("- reserved1 = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr2.reserved1); printf("- *Descriptor region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr2.fdRegionWriteAccess); printf("- *BIOS region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr2.biosRegionWriteAccess); printf("- *ME region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr2.meRegionWriteAccess); printf("- *GbE region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr2.gbeRegionWriteAccess); printf("- *Platform region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr2.pdRegionWriteAccess); printf("- reserved2 = 0x%01x\n\n", descriptorStruct.masterAccessSection.flMstr2.reserved2); printf("FLMSTR3 (GbE):\n\n"); printf("- Requester ID = 0x%04x\n", descriptorStruct.masterAccessSection.flMstr3.requesterId); printf("- *Descriptor region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr3.fdRegionReadAccess); printf("- *BIOS region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr3.biosRegionReadAccess); printf("- *ME region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr3.meRegionReadAccess); printf("- *GbE Region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr3.gbeRegionReadAccess); printf("- *Platform region* Read Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr3.pdRegionReadAccess); printf("- reserved1 = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr3.reserved1); printf("- *Descriptor region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr3.fdRegionWriteAccess); printf("- *BIOS region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr3.biosRegionWriteAccess); printf("- *ME region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr3.meRegionWriteAccess); printf("- *GbE region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr3.gbeRegionWriteAccess); printf("- *Platform region* Write Access = 0x%01x\n", descriptorStruct.masterAccessSection.flMstr3.pdRegionWriteAccess); printf("- reserved2 = 0x%01x\n\n", descriptorStruct.masterAccessSection.flMstr3.reserved2); printf("Padding:\n\n"); for (i = 0; i < 148; i++) { if (descriptorStruct.masterAccessSection.padding[i] != 0xFF) { for (j = 0; j < 148; j++) { printf("- Offset %d = 0x%02x\n", j, descriptorStruct.masterAccessSection.padding[j]); } break; } else if (i == 147) { printf("- Every offset has a value of 0xFF\n"); break; } } printf("\n"); /* ICH straps */ printf("ICH straps\n"); printf("----------\n\n"); printf("ICHSTRAP0:\n\n"); printf("- **ME Disable** = 0x%01x\n", descriptorStruct.ichStraps.ichStrap0.meDisable); printf("- reserved1 = 0x%02x\n", descriptorStruct.ichStraps.ichStrap0.reserved1); printf("- TCO Mode = 0x%01x\n", descriptorStruct.ichStraps.ichStrap0.tcoMode); printf("- SMBus Address = 0x%02x\n", descriptorStruct.ichStraps.ichStrap0.smBusAddress); printf("- BMC Mode = 0x%01x\n", descriptorStruct.ichStraps.ichStrap0.bmcMode); printf("- Trip Point Select = 0x%01x\n", descriptorStruct.ichStraps.ichStrap0.tripPointSelect); printf("- reserved2 = 0x%01x\n", descriptorStruct.ichStraps.ichStrap0.reserved2); printf("- Integrated GbE = 0x%01x\n", descriptorStruct.ichStraps.ichStrap0.integratedGbe); printf("- LAN Phy = 0x%01x\n", descriptorStruct.ichStraps.ichStrap0.lanPhy); printf("- reserved3 = 0x%01x\n", descriptorStruct.ichStraps.ichStrap0.reserved3); printf("- DMI Requester ID = 0x%01x\n", descriptorStruct.ichStraps.ichStrap0.dmiRequesterId); printf("- SMBus2 Address = 0x%02x\n\n", descriptorStruct.ichStraps.ichStrap0.smBus2Address); printf("ICHSTRAP1:\n\n"); printf("- North M Link = 0x%01x\n", descriptorStruct.ichStraps.ichStrap1.northMlink); printf("- South M Link = 0x%01x\n", descriptorStruct.ichStraps.ichStrap1.southMlink); printf("- ME SMBus = 0x%01x\n", descriptorStruct.ichStraps.ichStrap1.meSmbus); printf("- SST Dynamic = 0x%01x\n", descriptorStruct.ichStraps.ichStrap1.sstDynamic); printf("- reserved1 = 0x%01x\n", descriptorStruct.ichStraps.ichStrap1.reserved1); printf("- North M Link 2 = 0x%01x\n", descriptorStruct.ichStraps.ichStrap1.northMlink2); printf("- reserved2 = 0x%02x\n", descriptorStruct.ichStraps.ichStrap1.reserved2); printf("- reserved3 = 0x%04x\n\n", descriptorStruct.ichStraps.ichStrap1.reserved3); printf("Padding:\n\n"); for (i = 0; i < 248; i++) { if (descriptorStruct.ichStraps.padding[i] != 0xFF) { for (j = 0; j < 248; j++) { printf("- Offset %d = 0x%02x\n", j, descriptorStruct.ichStraps.padding[j]); } break; } else if (i == 247) { printf("- Every offset has a value of 0xFF\n"); break; } } printf("\n"); printf("MCH straps\n"); printf("----------\n\n"); printf("MCHSTRAP0:\n\n"); printf("- **ME Disable** = 0x%01x\n", descriptorStruct.mchStraps.mchStrap0.meDisable); printf("- Boot ME from flash = 0x%01x\n", descriptorStruct.mchStraps.mchStrap0.meBootFromFlash); printf("- **TPM Disable** = 0x%01x\n", descriptorStruct.mchStraps.mchStrap0.tpmDisable); printf("- reserved1 = 0x%01x\n", descriptorStruct.mchStraps.mchStrap0.reserved1); printf("- SPI Fingerprint = 0x%01x\n", descriptorStruct.mchStraps.mchStrap0.spiFingerprint); printf("- ME Alternate Disable = 0x%01x\n", descriptorStruct.mchStraps.mchStrap0.meAlternateDisable); printf("- reserved2 = 0x%02x\n", descriptorStruct.mchStraps.mchStrap0.reserved2); printf("- reserved3 = 0x%04x\n\n", descriptorStruct.mchStraps.mchStrap0.reserved3); printf("Padding:\n\n"); for (i = 0; i < 3292; i++) { if (descriptorStruct.mchStraps.padding[i] != 0xFF) { for (j = 0; j < 3292; j++) { printf("- Offset %d = 0x%02x\n", j, descriptorStruct.mchStraps.padding[j]); } break; } else if (i == 3291) { printf("- Every offset has a value of 0xFF\n"); break; } } printf("\n"); printf("ME VSCC Table\n"); printf("-------------\n\n"); printf("- JID0 = 0x%08x\n", descriptorStruct.meVsccTable.jid0); printf("- VSCC0 = 0x%08x\n", descriptorStruct.meVsccTable.vscc0); printf("- JID1 = 0x%08x\n", descriptorStruct.meVsccTable.jid1); printf("- VSCC1 = 0x%08x\n", descriptorStruct.meVsccTable.vscc1); printf("- JID2 = 0x%08x\n", descriptorStruct.meVsccTable.jid2); printf("- VSCC2 = 0x%08x\n\n", descriptorStruct.meVsccTable.vscc2); printf("Padding:\n\n"); for (i = 0; i < 4; i++) { if (descriptorStruct.meVsccTable.padding[i] != 0xFF) { for (j = 0; j < 4; j++) { printf("- Offset %d = 0x%02x\n", j, descriptorStruct.meVsccTable.padding[j]); } break; } else if (i == 3) { printf("- Every offset has a value of 0xFF\n"); break; } } printf("\n"); printf("Descriptor Map 2 Record\n"); printf("-----------------------\n\n"); printf("- *ME VSCC Table* Base Address = 0x%02x\n", descriptorStruct.descriptor2Map.meVsccTableBaseAddress); printf("- *ME VSCC Table* Length = 0x%02x\n", descriptorStruct.descriptor2Map.meVsccTableLength); printf("- reserved = 0x%04x\n", descriptorStruct.descriptor2Map.reserved); printf("\n\n"); printf("OEM section\n"); printf("-----------\n\n"); printf("Magic String:\n\n"); for(i = 0; i < 8; i++) { printf("- Offset %d = 0x%02x\n", i, descriptorStruct.oemSection.magicString[i]); } printf("\n"); printf("Padding:\n\n"); for (i = 0; i < 248; i++) { if (descriptorStruct.oemSection.padding[i] != 0xFF) { for (j = 0; j < 248; j++) { printf("- Offset %d = 0x%02x\n", j, descriptorStruct.oemSection.padding[j]); } break; } else if (i == 247) { printf("- Every offset has a value of 0xFF\n"); break; } } printf("\n"); return 0; }