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-rw-r--r--resources/utilities/ich9deblob/ich9deblob.c56
1 files changed, 31 insertions, 25 deletions
diff --git a/resources/utilities/ich9deblob/ich9deblob.c b/resources/utilities/ich9deblob/ich9deblob.c
index bd980b9..f99b4a4 100644
--- a/resources/utilities/ich9deblob/ich9deblob.c
+++ b/resources/utilities/ich9deblob/ich9deblob.c
@@ -61,26 +61,11 @@ unsigned short gbeGetChecksumFrom4kStruct(struct GBEREGIONRECORD_4K gbeStruct4k,
unsigned short gbeGetChecksumFrom8kBuffer(char* buffer, unsigned short desiredValue, char isBackup); // for GBe region (checksum calculation)
unsigned short gbeGetRegionWordFrom8kBuffer(int i, char* buffer); // used for getting each word needed to calculate said checksum
struct DESCRIPTORREGIONRECORD deblobbedFromFactory(struct DESCRIPTORREGIONRECORD factoryDescriptorStruct, int romSize);
-
-// Basically, this should only return true on non-x86 machines
-int structSizesIncorrect(struct DESCRIPTORREGIONRECORD descriptorDummy, struct GBEREGIONRECORD_8K gbe8kDummy) {
- unsigned int descriptorRegionStructSize = sizeof(descriptorDummy);
- unsigned int gbeRegion8kStructSize = sizeof(gbe8kDummy);
- // check compiler bit-packs in a compatible way. basically, it is expected that this code will be used on x86
- if (DESCRIPTORREGIONSIZE != descriptorRegionStructSize){
- printf("\nerror: compiler incompatibility: descriptor struct length is %i bytes (should be %i)\n", descriptorRegionStructSize, DESCRIPTORREGIONSIZE);
- return 1;
- }
- if (GBEREGIONSIZE != gbeRegion8kStructSize){
- printf("\nerror: compiler incompatibility: gbe struct length is %i bytes (should be %i)\n", gbeRegion8kStructSize, GBEREGIONSIZE);
- return 1;
- }
- return 0;
-}
+int structSizesIncorrect(struct DESCRIPTORREGIONRECORD descriptorDummy, struct GBEREGIONRECORD_8K gbe8kDummy);
+int systemIsBigEndian();
int main(int argc, char *argv[])
{
-
// descriptor region. Will have actual descriptor mapped to it (from the factory.rom dump)
// and then it will be modified (deblobbed) to remove the ME/AMT
struct DESCRIPTORREGIONRECORD factoryDescriptorStruct;
@@ -90,15 +75,9 @@ int main(int argc, char *argv[])
struct GBEREGIONRECORD_8K factoryGbeStruct8k;
struct GBEREGIONRECORD_8K deblobbedGbeStruct8k;
+ // Compatibility checks. This version of ich9deblob is not yet porable.
if (structSizesIncorrect(factoryDescriptorStruct, factoryGbeStruct8k)) return 1;
-
- // endianness check. big endian forced to fail
- unsigned short steak = 0xBEEF;
- unsigned char *grill = (char*)&steak;
- if (*grill==0xBE) {
- printf("\nunsigned short 0xBEEF: first byte should be EF, but it's BE. Your system is big endian, and unsupported (only little endian is tested)\n");
- return 1;
- }
+ if (systemIsBigEndian()) return 1;
// -----------------------------------------------------------------------------------------------
@@ -288,6 +267,33 @@ int main(int argc, char *argv[])
return 0;
}
+// Basically, this should only return true on non-x86 machines
+int structSizesIncorrect(struct DESCRIPTORREGIONRECORD descriptorDummy, struct GBEREGIONRECORD_8K gbe8kDummy) {
+ unsigned int descriptorRegionStructSize = sizeof(descriptorDummy);
+ unsigned int gbeRegion8kStructSize = sizeof(gbe8kDummy);
+ // check compiler bit-packs in a compatible way. basically, it is expected that this code will be used on x86
+ if (DESCRIPTORREGIONSIZE != descriptorRegionStructSize){
+ printf("\nerror: compiler incompatibility: descriptor struct length is %i bytes (should be %i)\n", descriptorRegionStructSize, DESCRIPTORREGIONSIZE);
+ return 1;
+ }
+ if (GBEREGIONSIZE != gbeRegion8kStructSize){
+ printf("\nerror: compiler incompatibility: gbe struct length is %i bytes (should be %i)\n", gbeRegion8kStructSize, GBEREGIONSIZE);
+ return 1;
+ }
+ return 0;
+}
+
+int systemIsBigEndian() {
+ // endianness check. big endian forced to fail
+ unsigned short steak = 0xBEEF;
+ unsigned char *grill = (char*)&steak;
+ if (*grill==0xBE) {
+ printf("\nunsigned short 0xBEEF: first byte should be EF, but it's BE. Your system is big endian, and unsupported (only little endian is tested)\n");
+ return 1;
+ }
+ return 0;
+}
+
// Modify the flash descriptor, to remove the ME/AMT, and disable all other regions
// Only Flash Descriptor, Gbe and BIOS regions (BIOS region fills romSize-12k) are left.
// Tested on ThinkPad X200 and X200S. X200T and other GM45 targets may also work.