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Move PML4 initialization into the VirtualMemory class.

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Drew Galbraith 2023-05-30 21:39:19 -07:00
parent f22dd66c8d
commit 1db93e5b12
11 changed files with 39 additions and 25 deletions
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13
zion/memory/virtual_memory.cpp
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@ -1,9 +1,22 @@
#include "memory/virtual_memory.h"
#include "memory/kernel_stack_manager.h"
#include "memory/paging_util.h"
#include "memory/physical_memory.h"
extern KernelStackManager* gKernelStackManager;
VirtualMemory VirtualMemory::ForRoot() {
uint64_t cr3 = 0;
asm volatile("mov %%cr3, %0;" : "=r"(cr3));
return {cr3};
}
VirtualMemory::VirtualMemory() {
cr3_ = phys_mem::AllocatePage();
InitializePml4(cr3_);
}
uint64_t* VirtualMemory::AllocateKernelStack() {
return gKernelStackManager->AllocateKernelStack();
}