Comment 1 by Wang Xi, Apr 29, 2013
unsigned long getMemoryMap( MemoryRange * rangeArray,
unsigned long maxRangeCount,
unsigned long * conMemSizePtr,
unsigned long * extMemSizePtr )
{
#define kMemoryMapSignature 'SMAP'
#define kDescriptorSizeMin 20
MemoryRange * range = (MemoryRange *)BIOS_ADDR;
unsigned long count = 0;
// unsigned long rerangedCount;
unsigned long long conMemSize = 0;
unsigned long long extMemSize = 0;
// Prepare for the INT15 E820h call. Each call returns a single
// memory range. A continuation value is returned that must be
// provided on a subsequent call to fetch the next range.
//
// Certain BIOSes (Award 6.00PG) expect the upper word in EAX
// to be cleared on entry, otherwise only a single range will
// be reported.
//
// Some BIOSes will simply ignore the value of ECX on entry.
// Probably best to keep its value at 20 to avoid surprises.
//printf("Get memory map 0x%x, %d\n", rangeArray);
getchar();
if (maxRangeCount > (BIOS_LEN / sizeof(MemoryRange))) {
maxRangeCount = (BIOS_LEN / sizeof(MemoryRange));
}
bb.ebx.rx = 0; // Initial continuation value must be zero.
// Xi 2013.4.29
// {
// while ( count < maxRangeCount )
// }
while (1)
{
bb.intno = 0x15;
bb.eax.rx = 0xe820;
bb.ecx.rx = kDescriptorSizeMin;
bb.edx.rx = kMemoryMapSignature;
bb.edi.rr = NORMALIZED_OFFSET( (unsigned long) range );
bb.es = NORMALIZED_SEGMENT( (unsigned long) range );
bios(&bb);
// Check for errors.
if ( bb.flags.cf
|| bb.eax.rx != kMemoryMapSignature
|| bb.ecx.rx != kDescriptorSizeMin ) {
//printf("Got an error %x %x %x\n",
bb.flags.cf,
// bb.eax.rx, bb.ecx.rx);
break;
}
// Tally up the conventional/extended memory sizes.
if ( range->type == kMemoryRangeUsable ||
range->type == kMemoryRangeACPI ||
range->type == kMemoryRangeNVS )
{
// Tally the conventional memory ranges.
if ( range->base + range->length <= 0xa0000 ) {
conMemSize += range->length;
}
// Record the top of extended memory.
if ( range->base >= EXTENDED_ADDR ) {
extMemSize += range->length;
}
}
range++;
count++;
// Is this the last address range?
if ( bb.ebx.rx == 0 ) {
//printf("last range\n");
break;
}
}
*conMemSizePtr = conMemSize / 1024; // size in KB
*extMemSizePtr = extMemSize / 1024; // size in KB
#if 0
rerangedCount = rerangeMemoryMap(count);
range += rerangedCount - count;
#endif
// Copy out data
bcopy((char *)BIOS_ADDR, rangeArray, ((char *)range - (char
*)BIOS_ADDR));
#if DEBUG
{
int i;
printf("%d total ranges\n", count); getchar();
for (i=0, range = rangeArray; i<count; i++, range++) {
printf("range: type %d, base 0x%x, length
0x%x\n",
range->type, (unsigned int)range->base,
(unsigned int)range->length); getchar();
}
}
#endif
return count;
}
Comment 2 by Wang Xi, Apr 29, 2013
Hello, How to compile chameleon? On Linux, or Mac OS, or Windows? Xi
Comment 6 by Wang Xi, Apr 29, 2013
If you can package to this ISO format like the attachment, I can test for you. Xi
- wowpc.rar - 303.64 kB
Comment 7 by Wang Xi, Apr 29, 2013
Mac OS 10.8.3 reports 8G, but its active monitor shows only 3.25G
Comment 12 by Hector Gonzalez, May 1, 2013
Just one comment. Even though the "while (1)" fixes the memory detection problem while booting it causes sleep problems Setting the value for kMemoryMapCountMax seems to be the correct approach. Thanks again Xi for pointing out the bug! H.
Comment 13 by Wang Xi, May 1, 2013
Please update it soon. I used Xcode 4.6 to compile chameleon, but Xcode told me that I have no make execute. Thanks Xi
Comment 14 by Hector Gonzalez, May 1, 2013
Hi Xi, I had the same issue and this is what I did (just in case you want to compile) Install shell tools using Xcode preferences menu (downloads). Then I compiled using command line with latest code from chameleon SVN.
Comment 15 by John Madness, May 3, 2013
Hello all! I have many problems to compile Chameleon on OSX 10.8.2 + XCode 4.6.2 (different versions have a different compile mistakes, and i tired to find the solution for anything of it) :< Can someone upload the worked compiled version (with updated kMemoryMapCountMax) here?... I'm apologise for this ... use.
Comment 16 by Hector Gonzalez, May 3, 2013
There you go. https://dl.dropboxusercontent.com/u/289985/i386.zip
Comment 18 by Wang Xi, May 4, 2013
Hello, I tested, YES, it's GREAT, I saw 8.13G appeared in Active Monitor. Thank you, Hector Gonzalez Xi
- wowpc.rar - 337.43 kB
Comment 22 by jns 1936, May 5, 2013
hey guys, sorry for my lack of skills but how did you test it? did you rebuild chameleon from source? thanks by the way
Comment 24 by Wang Xi, May 6, 2013
Hello, kMemoryMapCountMax = 100 is enough, I counted the number of memory blocks of Asus N56VZ was 52. So kMemoryMapCountMax = 100 is enough. Xi
Comment 25 by jns 1936, May 7, 2013
checked, works great. finally all 16Gb of RAM are recognized and used. thanks once again
Comment 26 by Nicolás Petersen, May 28, 2013
Has this anything to do with the recognition of the Vram of a 670mx graphics card ?
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Reported by Wang Xi, Apr 29, 2013