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[NTOS:MM] Mark RosMm memory areas

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This is to distinguish them from ARM³ memory areas, which we use for some kernel regions, like paged pool.
This commit is contained in:
Timo Kreuzer 2024-04-06 19:46:43 +03:00
parent 42c7e4f66a
commit d0a7e496aa
4 changed files with 12 additions and 0 deletions
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2
ntoskrnl/include/internal/mm.h
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@ -271,6 +271,8 @@ typedef struct _MEMORY_AREA
#define MI_SET_MEMORY_AREA_VAD(Vad) do { (Vad)->u.VadFlags.Spare |= 1; } while (0)
#define MI_IS_MEMORY_AREA_VAD(Vad) (((Vad)->u.VadFlags.Spare & 1) != 0)
#define MI_SET_ROSMM_VAD(Vad) do { (Vad)->u.VadFlags.Spare |= 2; } while (0)
#define MI_IS_ROSMM_VAD(Vad) (((Vad)->u.VadFlags.Spare & 2) != 0)
typedef struct _MM_RMAP_ENTRY
{

3
ntoskrnl/mm/ARM3/procsup.c
View file

@ -1295,6 +1295,9 @@ MmCleanProcessAddressSpace(IN PEPROCESS Process)
/* Check for old-style memory areas */
if (MI_IS_MEMORY_AREA_VAD(Vad))
{
/* We do not expect ARM3 memory areas here, those are kernel only */
ASSERT(MI_IS_ROSMM_VAD(Vad));
/* Let RosMm handle this */
MiRosCleanupMemoryArea(Process, Vad);
continue;

3
ntoskrnl/mm/ARM3/section.c
View file

@ -1569,6 +1569,9 @@ MiGetFileObjectForVad(
{
PMEMORY_AREA MemoryArea = (PMEMORY_AREA)Vad;
/* We do not expect ARM3 memory areas here, those are kernel only */
ASSERT(MI_IS_ROSMM_VAD(Vad));
/* Check if it's a section view (RosMm section) */
if (MemoryArea->Type == MEMORY_AREA_SECTION_VIEW)
{

4
ntoskrnl/mm/marea.c
View file

@ -440,6 +440,10 @@ MmCreateMemoryArea(PMMSUPPORT AddressSpace,
MemoryArea->Magic = 'erAM';
MemoryArea->DeleteInProgress = FALSE;
MI_SET_MEMORY_AREA_VAD(&MemoryArea->VadNode);
if (MemoryArea->Type != MEMORY_AREA_OWNED_BY_ARM3)
{
MI_SET_ROSMM_VAD(&MemoryArea->VadNode);
}
if (*BaseAddress == 0)
{