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[Zion] Move Kernel Stack Memory constants to separate file.

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This commit is contained in:
Drew Galbraith 2023-11-15 15:55:24 -08:00
parent 07e6e3028d
commit 9e76c81e97
2 changed files with 17 additions and 9 deletions
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15
zion/memory/kernel_stack_manager.cpp
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@ -3,14 +3,11 @@
#include "common/gdt.h"
#include "debug/debug.h"
#include "interrupt/interrupt.h"
#include "memory/constants.h"
#include "memory/paging_util.h"
#define KERNEL_STACK_START 0xFFFFFFFF'90000000
#define KERNEL_STACK_LIMIT 0xFFFFFFFF'9FFFFFFF
#define KERNEL_STACK_OFFSET 0x4000
KernelStackManager::KernelStackManager()
: next_stack_addr_(KERNEL_STACK_START) {}
: next_stack_addr_(kKernelStackStart) {}
void KernelStackManager::SetupInterruptStack() {
SetIst1(AllocateKernelStack());
@ -18,11 +15,11 @@ void KernelStackManager::SetupInterruptStack() {
}
uint64_t KernelStackManager::AllocateKernelStack() {
next_stack_addr_ += KERNEL_STACK_OFFSET;
if (next_stack_addr_ >= KERNEL_STACK_LIMIT) {
panic("No more kernelstack space");
next_stack_addr_ += kKernelStackOffset;
if (next_stack_addr_ >= kKernelStackEnd) {
panic("No more kernel stack space");
}
EnsureResident(next_stack_addr_ - 0x3000, 0x3000);
EnsureResident(next_stack_addr_ - kKernelStackSize, kKernelStackSize);
return next_stack_addr_ - 8;
}