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[NTOS:ARM3] Change calculation for more system PTEs (#8613)

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* [NTOSKRNL] Increase MI_NUMBER_SYSTEM_PTES for AMD64
* [NTOS:MM] Move the system PTE space on x86 to a different spot
* [KMTESTS] Adjust KmTest
This commit is contained in:
Justin Miller
2026-03-05 14:57:09 +00:00
committed by GitHub
parent c9e73b6a77
commit 4cba65d760
6 changed files with 97 additions and 52 deletions
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12
modules/rostests/kmtests/ntos_mm/MmMdl.c
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@@ -134,7 +134,15 @@ TestMmAllocatePagesForMdl(VOID)
FALSE,
NormalPagePriority);
#ifdef _M_IX86
ok(SystemVa == NULL, "MmMapLockedPagesSpecifyCache succeeded for 2 GB\n");
/*
* MmAllocatePagesForMdl is allowed to return fewer pages than requested.
* Only enforce the x86 mapping expectation if we actually got ~2GB.
*/
if (MmGetMdlByteCount(Mdl) >= (1UL << 31))
ok(SystemVa == NULL, "MmMapLockedPagesSpecifyCache succeeded for 2 GB\n");
else
trace("Skipping 2GB mapping expectation (allocated %lu bytes)\n",
MmGetMdlByteCount(Mdl));
#endif
if (SystemVa != NULL)
MmUnmapLockedPages(SystemVa, Mdl);
@@ -173,7 +181,7 @@ TestMmAllocatePagesForMdl(VOID)
trace("MmMapLockedPagesSpecifyCache failed with i = %lu\n", i);
break;
}
ok(MmGetMdlByteCount(Mdls[i]) == 32 * 1024 * 1024, "Byte count: %lu\n", MmGetMdlByteCount(Mdls[i]));
ok(MmGetMdlByteCount(Mdls[i]) <= 32 * 1024 * 1024, "Byte count: %lu\n", MmGetMdlByteCount(Mdls[i]));
ok(MmGetMdlVirtualAddress(Mdls[i]) == NULL, "Virtual address: %p, System VA: %p\n", MmGetMdlVirtualAddress(Mdls[i]), SystemVas[i]);
ok(Mdls[i]->MappedSystemVa == SystemVas[i], "MappedSystemVa: %p\n", Mdls[i]->MappedSystemVa, SystemVas[i]);
ok((Mdls[i]->MdlFlags & MDL_MAPPED_TO_SYSTEM_VA), "MdlFlags: %lx\n", Mdls[i]->MdlFlags);