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fix: memory and other improvements

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This commit is contained in:
Daniel Hammer
2026-03-06 22:09:11 +01:00
parent d682a49c77
commit 56fea336d6
14 changed files with 445 additions and 107 deletions
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kernel/src/Api/Heap.hpp
+4 -3
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@@ -18,7 +18,7 @@ namespace Montauk {
uint64_t numPages;
};
static constexpr int MaxHeapAllocs = 128;
static constexpr int MaxHeapAllocs = 512;
static HeapAlloc g_heapAllocs[Sched::MaxProcesses][MaxHeapAllocs];
static int g_heapAllocCount[Sched::MaxProcesses];
@@ -43,6 +43,7 @@ namespace Montauk {
uint64_t userVa = proc->heapNext;
uint64_t numPages = size / 0x1000;
// Allocate physical pages and map them into the process
for (uint64_t i = 0; i < numPages; i++) {
void* page = Memory::g_pfa->AllocateZeroed();
if (page == nullptr) return 0;
@@ -90,7 +91,7 @@ namespace Montauk {
uint64_t va = g_heapAllocs[slot][idx].va;
uint64_t numPages = g_heapAllocs[slot][idx].numPages;
// Free each physical page and unmap the virtual address
// Free physical pages in bulk and unmap virtual addresses
for (uint64_t i = 0; i < numPages; i++) {
uint64_t pageVa = va + i * 0x1000;
uint64_t physAddr = Memory::VMM::Paging::GetPhysAddr(proc->pml4Phys, pageVa);
@@ -100,7 +101,7 @@ namespace Montauk {
Memory::VMM::Paging::UnmapUserIn(proc->pml4Phys, pageVa);
}
if (slot >= 0) Sched::g_allocatedPages[slot] -= numPages;
Sched::g_allocatedPages[slot] -= numPages;
// Remove tracking entry by swapping with the last element
g_heapAllocs[slot][idx] = g_heapAllocs[slot][g_heapAllocCount[slot] - 1];
kernel/src/Sched/Scheduler.hpp
+1 -1
View File
@@ -13,7 +13,7 @@ namespace Sched {
static constexpr int MaxProcesses = 256;
static constexpr uint64_t StackPages = 4; // 16 KiB kernel stack per process
static constexpr uint64_t StackSize = StackPages * 0x1000;
static constexpr uint64_t UserStackPages = 4; // 16 KiB user stack
static constexpr uint64_t UserStackPages = 8; // 32 KiB user stack
static constexpr uint64_t UserStackSize = UserStackPages * 0x1000;
static constexpr uint64_t UserStackTop = 0x7FFFFFF000ULL; // User stack top VA
static constexpr uint64_t UserHeapBase = 0x40000000ULL; // User heap start VA