Nigel/BarinkOS
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KERNEL: Implementing VMM & cleaning up

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Folders now are alll lower case

Started working on the implementation of the Virtual memory manager. Implemented allocate and free page funtionality for as far as I can atm.

Implemented the
This commit is contained in:
Nigel Barink
2022-09-01 20:16:16 +02:00
parent 9893a0bd17
commit 13e9beea79
48 changed files with 195 additions and 173 deletions
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11
source/kernel/kernel.cpp
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@ -1,11 +1,6 @@
#include "kernel.h"
extern "C" void early_main()
{
/*
* Initialize terminal interface
*/
kterm_init();
initGDT();
@ -64,10 +59,11 @@ extern "C" void early_main()
printf("MemoryInfoheap size : %d bytes\n", BootInfo->map_size);
// Print the memory regions
MemoryInfoBlock* currentBlock = (MemoryInfoBlock*) ((uint32_t)BootInfo->MemoryMap + KERNEL_BASE_ADDR) ;
printf( "Starting address: 0x%x\n", currentBlock);
while( (uint32_t)currentBlock->next != 0x0 )
{
printf("CurrentBlock: 0x%x \n", (uint32_t ) currentBlock );
if(IS_AVAILABLE_MEM(currentBlock->type)){
//printf("AVAILABLE RAM\n");
}
@ -91,11 +87,12 @@ extern "C" void early_main()
}
printf("Starting physical memory management setup\n");
// Setup PhysicalMemoryManagement
SetupPhysicalMemoryManager(BootInfo);
}
printf("Enable Protected mode and jump to kernel main\n");
asm volatile("mov %cr0, %eax ");
asm volatile("or $1, %eax");
asm volatile("mov %eax, %cr0"); // re-enable protected mode ?