[prasys]

Originally Posted by meklort

As stated in my blog, I'm going to upload all of the source changes to Chameleon as well as SleepEnabler later today, but the patch consists of this (more or less). It's not very nice, but it works. I've also modified ThinFatFile to set binaryOffset to the x84 offset of the mach file. I finally call patch_kernel after LoadThinFatFile is called with the kernel path.

/*
 * Copyright (c) 2009 Evan Lojewski. All rights reserved.
 *
 */

#include "libsaio.h"
#include "patch.h"

extern void* binaryOffset;

struct patch_entry
{
	char *addr;
	char byte;
	char oldByte;
};

// Kernel path by tea
struct patch_entry patch_table[] =
{
	{ (char*) 0x005E6A8A, 0x31, 0x83 },
	{ (char*) 0x005E6A8B, 0xC0, 0xE8 },
	{ (char*) 0x005E6A8C, 0x40, 0x0D },
	{ (char*) 0x00000000, 0x00, 0x00 }
};
	


void patch_kernel(void* kernel_addr)
{
	int i;
	
	for(i = 0; patch_table[i].addr != 0; i++)
	{
		char* addr = (unsigned long)kernel_addr + patch_table[i].addr - (unsigned long)binaryOffset;
		if(((*addr) & 0xFF) != (patch_table[i].oldByte & 0xFF)) 
		{
			verbose("Failed to match 0x%X with 0x%X\n", *addr & 0xFF, patch_table[i].oldByte & 0xFF);

			return;
		}
	}
	
	for(i = 0; patch_table[i].addr != 0; i++)
	{
		char* addr = (unsigned long)kernel_addr + patch_table[i].addr - (unsigned long)binaryOffset;

		verbose("Replacing 0x%X with 0x%X at 0x%X\n", *addr & 0xFF, patch_table[i].byte & 0xFF, addr, patch_table[i].byte & 0xFF);
		*(addr) = (patch_table[i].byte & 0xFF);
	}
}

Thanks a heaps. Appreciate it - kudos for your fast reply

Edit : makes sense why it idd not work on Atom 3xx series , its specific for Atom N270 series :P

[meklort]

I didn't figure out the patch for the cpu, just patched chameleon. Credit should go to tea.

[prasys]

Originally Posted by meklort

I didn't figure out the patch for the cpu, just patched chameleon. Credit should go to tea.

Credits to you too for figuring out on how to play nice with chameleon. I guess i'll have to ask modbin or someone whos good in hacking the binaries to figure that out. Thanks again meklort for your speed reply. i thought you managed to do CPUID patching on the fly for Atom series and other processors. Anyway great job on slicing it up together with chameleon :P

[meklort]

It actually wouldn't be *too* hard to do that. I could have chameleon look for the cpuid_set_info and change the function to the version included in an older kernel (or just patch the section that calls cpuid_set_generic_info / patch that functions itself...

Hmm... Now I'm going to have to do that (after all, it'd support new versions of OS X and old ones...)

[bmcclure937]

*Thread Closed*

There is no longer any need to discuss rumors about 10.6.2 since Meklort has released NBI .8.3RC4, which handles the 10.6.2 kernel issues. Please refer to the .8.3RC4 announcement thread for further discussions about getting OSX 10.6.2 running on your Mini

http://www.mydellmini.com/forum/mac-...4-testing.html

If you have installed OSX 10.6.2 and are unable to boot, follow the recovery procedures found HERE!!