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[NTOSKRNL]

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Completely implement Complete NtQuerySystemInformation - SystemNumaProcessorMap

CORE-9680

svn path=/trunk/; revision=68171
This commit is contained in:
Pierre Schweitzer 2015-06-17 17:28:19 +00:00
parent 564ff01f3d
commit 0b3c4c8734
1 changed files with 29 additions and 13 deletions
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42
reactos/ntoskrnl/ex/sysinfo.c
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@ -2168,31 +2168,47 @@ SSI_DEF(SystemLoadGdiDriverInSystemSpaceInformation)
/* Class 55 - NUMA processor information */
QSI_DEF(SystemNumaProcessorMap)
{
ULONG MaxEntries, Node;
PSYSTEM_NUMA_INFORMATION NumaInformation = (PSYSTEM_NUMA_INFORMATION)Buffer;
/* Validate input size */
if (Size < sizeof(ULONG))
{
return STATUS_INFO_LENGTH_MISMATCH;
}
#if 1 // Partial & incomplete implementation just to let GetNumaHighestNodeNumber() work
/* In case of a partial query, just return number of nodes and stop here */
if (Size < sizeof(SYSTEM_NUMA_INFORMATION))
/* Return highest node */
NumaInformation->HighestNodeNumber = KeNumberNodes - 1;
/* Compute how much entries we will be able to put in output structure */
MaxEntries = (Size - FIELD_OFFSET(SYSTEM_NUMA_INFORMATION, ActiveProcessorsAffinityMask)) / sizeof(ULONGLONG);
/* Make sure we don't overflow KeNodeBlock */
if (MaxEntries > KeNumberNodes)
{
NumaInformation->HighestNodeNumber = KeNumberNodes - 1;
*ReqSize = sizeof(ULONG);
return STATUS_SUCCESS;
MaxEntries = KeNumberNodes;
}
/* If we have entries to write, and room for it */
if (Size >= FIELD_OFFSET(SYSTEM_NUMA_INFORMATION, ActiveProcessorsAffinityMask) &&
MaxEntries != 0)
{
/* Already set size we return */
*ReqSize = FIELD_OFFSET(SYSTEM_NUMA_INFORMATION, ActiveProcessorsAffinityMask) +
MaxEntries * sizeof(ULONGLONG);
/* For each node, return processor mask */
for (Node = 0; Node < MaxEntries; ++Node)
{
NumaInformation->ActiveProcessorsAffinityMask[Node] = KeNodeBlock[Node]->ProcessorMask;
}
}
else
{
DPRINT1("NtQuerySystemInformation - SystemNumaProcessorMap not implemented\n");
return STATUS_NOT_IMPLEMENTED;
/* We only returned highest node number */
*ReqSize = sizeof(ULONG);
}
#else
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemNumaProcessorMap not implemented\n");
return STATUS_NOT_IMPLEMENTED;
#endif
return STATUS_SUCCESS;
}