xt-sys/exectos
3
5
Fork 2
Code Issues 7 Pull Requests 1 Actions Projects 1 Releases Wiki Activity

Move PFN database size tracking to memory layout
Some checks failed
Builds / ExectOS (amd64, release) (push) Failing after 20s
Details
Builds / ExectOS (i686, release) (push) Failing after 22s
Details
Builds / ExectOS (i686, debug) (push) Failing after 29s
Details
Builds / ExectOS (amd64, debug) (push) Failing after 30s
Details

Browse Source
This commit is contained in:
Aiken Harris
2026-01-29 22:26:31 +01:00
parent 58669d3074
commit 5e3fb7a5a3
8 changed files with 26 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
xtoskrnl/mm/amd64/mmgr.cc
View File

@@ -21,7 +21,6 @@ VOID
MM::Manager::InitializeMemoryLayout(VOID)
{
ULONG_PTR PagedPoolSize, PteCount;
PFN_NUMBER PfnDatabaseSize;
ULONG PtesPerPage;
/* Get the number of PTEs per page and calculate size of paged pool (at least 32MiB) */
@@ -30,7 +29,7 @@ MM::Manager::InitializeMemoryLayout(VOID)
PagedPoolSize = PteCount * PtesPerPage * MM_PAGE_SIZE;
/* Retrieve the PFN database size */
PfnDatabaseSize = MM::Pfn::GetPfnDatabaseSize();
MM::Pfn::GetPfnDatabaseSize(&MemoryLayout.PfnDatabaseSize);
/* Define the number of system PTEs */
NumberOfSystemPtes = MM_DEFAULT_NUMBER_SYSTEM_PTES;
@@ -43,7 +42,7 @@ MM::Manager::InitializeMemoryLayout(VOID)
MemoryLayout.SelfMapAddress = (PVOID)MM_P5E_LA57_BASE;
/* Define the non-paged and paged pool regions */
MemoryLayout.NonPagedPoolStart = (PVOID)((ULONG_PTR)MemoryLayout.PfnDatabase + PfnDatabaseSize * MM_PAGE_SIZE);
MemoryLayout.NonPagedPoolStart = (PVOID)((ULONG_PTR)MemoryLayout.PfnDatabase + MemoryLayout.PfnDatabaseSize * MM_PAGE_SIZE);
MemoryLayout.NonPagedPoolEnd = (PVOID)0xFFFEFFFFFFBFFFFFULL;
MemoryLayout.PagedPoolStart = (PVOID)0xFFFEF8A000000000ULL;
MemoryLayout.PagedPoolEnd = (PVOID)(((ULONG_PTR)MemoryLayout.PagedPoolStart + PagedPoolSize) - 1);
@@ -60,7 +59,7 @@ MM::Manager::InitializeMemoryLayout(VOID)
MemoryLayout.SelfMapAddress = (PVOID)MM_PXE_BASE;
/* Define the non-paged and paged pool regions */
MemoryLayout.NonPagedPoolStart = (PVOID)((ULONG_PTR)MemoryLayout.PfnDatabase + PfnDatabaseSize * MM_PAGE_SIZE);
MemoryLayout.NonPagedPoolStart = (PVOID)((ULONG_PTR)MemoryLayout.PfnDatabase + MemoryLayout.PfnDatabaseSize * MM_PAGE_SIZE);
MemoryLayout.NonPagedPoolEnd = (PVOID)0xFFFFFFFFFFBFFFFFULL;
MemoryLayout.PagedPoolStart = (PVOID)0xFFFFF8A000000000ULL;
MemoryLayout.PagedPoolEnd = (PVOID)(((ULONG_PTR)MemoryLayout.PagedPoolStart + PagedPoolSize) - 1);

7
xtoskrnl/mm/amd64/pfn.cc
View File

@@ -40,7 +40,7 @@ MM::Pfn::InitializePfnDatabase(VOID)
MemoryLayout = MM::Manager::GetMemoryLayout();
/* Get the PFN database size and calculate the end of the PFN database virtual address space */
PfnDatabaseEnd = (PUCHAR)MemoryLayout->PfnDatabase + (PfnDatabaseSize * MM_PAGE_SIZE) - 1;
PfnDatabaseEnd = (PUCHAR)MemoryLayout->PfnDatabase + (MemoryLayout->PfnDatabaseSize * MM_PAGE_SIZE) - 1;
/* Get a template PTE for mapping the PFN database pages */
ValidPte = MM::Pte::GetValidPte();
@@ -88,10 +88,11 @@ MM::Pfn::InitializePfnDatabase(VOID)
if(Descriptor == FreeDescriptor)
{
/* Initialize PFNs for the remaining free memory */
ProcessMemoryDescriptor(BasePage + PfnDatabaseSize, PageCount - PfnDatabaseSize, LoaderFree);
ProcessMemoryDescriptor(BasePage + MemoryLayout->PfnDatabaseSize,
PageCount - MemoryLayout->PfnDatabaseSize, LoaderFree);
/* Initialize PFNs for the physical pages backing the PFN database */
ProcessMemoryDescriptor(BasePage, PfnDatabaseSize, LoaderMemoryData);
ProcessMemoryDescriptor(BasePage, MemoryLayout->PfnDatabaseSize, LoaderMemoryData);
}
else
{