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Print the memory map

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This commit is contained in:
Eryn Wells 2016-03-20 03:38:52 -04:00
parent addf61ee7a
commit d8b05620cc
1 changed files with 8 additions and 1 deletions
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9
src/Main.cc
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@ -53,7 +53,14 @@ kmain(multiboot::Information *information)
console.printFormat("Memory map:\n");
console.printFormat(" available: lower = %ld KB, upper = %ld KB\n", info->lowerMemoryKB(), info->upperMemoryKB());
// TODO: Print memory map, after determining that the info struct is correct.
for (auto it = info->memoryMapBegin(); it != info->memoryMapEnd(); ++it) {
auto begin = (*it).base;
auto end = begin + (*it).length - 1;
console.printFormat(" begin = 0x%08lX %08lX, end = 0x%08lX %08lX (%s)\n",
uint32_t(begin >> 32), uint32_t(begin & 0xFFFFFFFF),
uint32_t(end >> 32), uint32_t(end & 0xFFFFFFFF),
(*it).type == 1 ? "available" : "reserved");
}
auto& gdt = x86::GDT::systemGDT();
gdt.setNullDescriptor(0);