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[BOOTMGR]: Finish alloc/free test. It shows that it seems? to be working ok? :-)

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[BOOTLIB]: Wrap-up implementation of MmPapFreePhysicalPages. We no longer leak RAM.

svn path=/trunk/; revision=73718
This commit is contained in:
Alex Ionescu 2017-02-05 22:02:24 +00:00
parent bcb2480c3c
commit 481f7c440a
2 changed files with 82 additions and 10 deletions
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52
reactos/boot/environ/app/bootmgr/bootmgr.c
View file

@ -2900,22 +2900,60 @@ BmMain (
EfiPrintf(L"Performing memory allocator tests...\r\n");
{
NTSTATUS Status;
PHYSICAL_ADDRESS PhysicalAddress;
PHYSICAL_ADDRESS PhysicalAddress, PhysicalAddress2;
PBL_MEMORY_DESCRIPTOR Found;
/* Allocate 1 physical page */
PhysicalAddress.QuadPart = 0;
Status = BlMmAllocatePhysicalPages(&PhysicalAddress, BlLoaderData, 1, 0, 1);
EfiPrintf(L"Allocation status: %lx at address: %llx\r\n", Status, PhysicalAddress.QuadPart);
EfiStall(10000);
if (Status != STATUS_SUCCESS)
{
EfiPrintf(L"FAIL: Allocation status: %lx at address: %llx\r\n", Status, PhysicalAddress.QuadPart);
EfiStall(100000000);
}
Found = MmMdFindDescriptor(BL_MM_INCLUDE_UNMAPPED_ALLOCATED, 0, PhysicalAddress.QuadPart >> PAGE_SHIFT);
EfiPrintf(L"Found descriptor: %p %llx\r\n", Found, Found->BasePage);
/* Write some data */
*(PULONG)PhysicalAddress.QuadPart = 0x55555151;
/* Free it */
Status = BlMmFreePhysicalPages(PhysicalAddress);
EfiPrintf(L"Memory free status: %lx\r\n", Status);
}
if (Status != STATUS_SUCCESS)
{
EfiPrintf(L"FAIL: Memory free status: %lx\r\n", Status);
EfiStall(100000000);
}
/* Allocate a page again */
PhysicalAddress2.QuadPart = 0;
Status = BlMmAllocatePhysicalPages(&PhysicalAddress2, BlLoaderData, 1, 0, 1);
if (Status != STATUS_SUCCESS)
{
EfiPrintf(L"FAIL: Allocation status: %lx at address: %llx\r\n", Status, PhysicalAddress2.QuadPart);
EfiStall(100000000);
}
/* It should've given us the same page, since we freed it */
if (PhysicalAddress.QuadPart != PhysicalAddress2.QuadPart)
{
EfiPrintf(L"FAIL: Non-matching addresses: %llx %llx\r\n", PhysicalAddress.QuadPart, PhysicalAddress2.QuadPart);
EfiStall(100000000);
}
/* The data should still be there, since zero-ing is not on for bootmgr */
if (*(PULONG)PhysicalAddress2.QuadPart != 0x55555151)
{
EfiPrintf(L"FAIL: Non-matching data: %lx %lx\r\n", 0x55555151, *(PULONG)PhysicalAddress2.QuadPart);
EfiStall(100000000);
}
/* And free the second page again */
Status = BlMmFreePhysicalPages(PhysicalAddress);
if (Status != STATUS_SUCCESS)
{
EfiPrintf(L"FAIL: Memory free status: %lx\r\n", Status);
EfiStall(100000000);
}
}
/* Write out the first XML tag */
BlXmiWrite(L"<bootmgr/>");

40
reactos/boot/environ/lib/mm/pagealloc.c
View file

@ -740,9 +740,43 @@ MmPapFreePhysicalPages (
Flags |= BL_MM_ADD_DESCRIPTOR_NEVER_COALESCE_FLAG;
}
/* TBD */
EfiPrintf(L"Leaking memory: %p!\r\n", Address.QuadPart);
return STATUS_SUCCESS;
/* Check if the entire allocation is being free*/
if (PageCount == Descriptor->PageCount)
{
/* Remove the descriptor from the allocated list */
MmMdRemoveDescriptorFromList(&MmMdlUnmappedAllocated, Descriptor);
/* Mark the entire descriptor as free */
Descriptor->Type = BlConventionalMemory;
}
else
{
/* Init a descriptor for what we're actually freeing */
Descriptor = MmMdInitByteGranularDescriptor(Descriptor->Flags,
BlConventionalMemory,
Page,
0,
PageCount);
if (!Descriptor)
{
return STATUS_NO_MEMORY;
}
/* Remove the region from the existing descriptor */
Status = MmMdRemoveRegionFromMdlEx(&MmMdlUnmappedAllocated,
BL_MM_REMOVE_PHYSICAL_REGION_FLAG,
Page,
PageCount,
NULL);
if (!NT_SUCCESS(Status))
{
return Status;
}
}
/* Add the new descriptor into in the list (or the old, repurposed one) */
Descriptor->Flags &= ~BlMemoryCoalesced;
return MmMdAddDescriptorToList(&MmMdlUnmappedUnallocated, Descriptor, Flags);
}
NTSTATUS