[PATCH v7 0/2] MR914: ntoskrnl.exe: Implement various KeQuery* functions

[Etaash Mathamsetty (＠etaash.mathamsetty)]

mrac tries to get function pointers for these functions using MmGetSystemRoutineAddress, I haven't seen them being used by it, but might as well implement it since they are very easy to implement.

--
  v7: ntoskrnl.exe: Implement KeQueryActiveProcessorCount.
      ntoskrnl.exe: implement KeQueryMaximumProcessorCount/Ex.

https://gitlab.winehq.org/wine/wine/-/merge_requests/914

[PATCH v7 1/2] ntoskrnl.exe: implement KeQueryMaximumProcessorCount/Ex.

[Etaash Mathamsetty]

From: Etaash Mathamsetty

---
 dlls/ntoskrnl.exe/ntoskrnl.c        | 16 ++++++++++++++++
 dlls/ntoskrnl.exe/ntoskrnl.exe.spec |  4 ++++
 include/winbase.h                   |  1 +
 3 files changed, 21 insertions(+)

diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index 9320e02dca9..ebf15dfc1d1 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -3414,6 +3414,22 @@ ULONG WINAPI KeGetCurrentProcessorNumberEx(PPROCESSOR_NUMBER process_number)
     return cur_number;
 }

+/***********************************************************************
+ *          KeQueryMaximumProcessorCountEx   (NTOSKRNL.EXE.@)
+ */
+ULONG WINAPI KeQueryMaximumProcessorCountEx(USHORT group_number)
+{
+    return (ULONG) GetMaximumProcessorCount(group_number);
+}
+
+/***********************************************************************
+ *          KeQueryMaximumProcessorCount   (NTOSKRNL.EXE.@)
+ */
+ULONG WINAPI KeQueryMaximumProcessorCount(void)
+{
+    return KeQueryActiveProcessorCountEx(ALL_PROCESSOR_GROUPS);
+}
+
 /***********************************************************************
  *           READ_REGISTER_BUFFER_UCHAR   (NTOSKRNL.EXE.@)
  */
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
index 8f8edcac7a0..aaf7fc8ac3d 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
+++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
@@ -599,12 +599,16 @@
 @ stub KePulseEvent
 @ stdcall KeQueryActiveProcessors()
 @ stdcall KeQueryActiveProcessorCountEx(long)
+@ stdcall KeQueryActiveGroupCount() GetActiveProcessorGroupCount
 @ stdcall KeQueryInterruptTime()
 @ stdcall KeQueryPriorityThread(ptr)
 @ stub KeQueryRuntimeThread
 @ stdcall KeQuerySystemTime(ptr)
 @ stdcall KeQueryTickCount(ptr)
 @ stdcall KeQueryTimeIncrement()
+@ stdcall KeQueryMaximumGroupCount() GetMaximumProcessorGroupCount
+@ stdcall KeQueryMaximumProcessorCountEx(long)
+@ stdcall KeQueryMaximumProcessorCount()
 @ stub KeRaiseUserException
 @ stdcall KeReadStateEvent(ptr)
 @ stub KeReadStateMutant
diff --git a/include/winbase.h b/include/winbase.h
index 7c0d8afd36c..8357a369564 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -2201,6 +2201,7 @@ WINBASEAPI DWORD       WINAPI GetLongPathNameA(LPCSTR,LPSTR,DWORD);
 WINBASEAPI DWORD       WINAPI GetLongPathNameW(LPCWSTR,LPWSTR,DWORD);
 #define                       GetLongPathName WINELIB_NAME_AW(GetLongPathName)
 WINBASEAPI BOOL        WINAPI GetMailslotInfo(HANDLE,LPDWORD,LPDWORD,LPDWORD,LPDWORD);
+WINBASEAPI DWORD       WINAPI GetMaximumProcessorCount(WORD);
 WINBASEAPI DWORD       WINAPI GetModuleFileNameA(HMODULE,LPSTR,DWORD);
 WINBASEAPI DWORD       WINAPI GetModuleFileNameW(HMODULE,LPWSTR,DWORD);
 #define                       GetModuleFileName WINELIB_NAME_AW(GetModuleFileName)

[PATCH v7 2/2] ntoskrnl.exe: Implement KeQueryActiveProcessorCount.

[Etaash Mathamsetty]

From: Etaash Mathamsetty

---
 dlls/ntoskrnl.exe/ntoskrnl.c        | 10 ++++++++++
 dlls/ntoskrnl.exe/ntoskrnl.exe.spec |  1 +
 2 files changed, 11 insertions(+)

diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index ebf15dfc1d1..836dec279e4 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -2602,6 +2602,16 @@ ULONG WINAPI KeQueryActiveProcessorCountEx(USHORT group_number)
     return GetActiveProcessorCount(group_number);
 }

+ULONG WINAPI KeQueryActiveProcessorCount(PKAFFINITY active_processors)
+{
+    TRACE("active_processors %p.\n", active_processors);
+
+    if(active_processors)
+        *active_processors = KeQueryActiveProcessors();
+
+    return KeQueryActiveProcessorCountEx(ALL_PROCESSOR_GROUPS);
+}
+
 /**********************************************************************
  *           KeQueryInterruptTime   (NTOSKRNL.EXE.@)
  *
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
index aaf7fc8ac3d..79f48e3eea2 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
+++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
@@ -599,6 +599,7 @@
 @ stub KePulseEvent
 @ stdcall KeQueryActiveProcessors()
 @ stdcall KeQueryActiveProcessorCountEx(long)
+@ stdcall KeQueryActiveProcessorCount(ptr)
 @ stdcall KeQueryActiveGroupCount() GetActiveProcessorGroupCount
 @ stdcall KeQueryInterruptTime()
 @ stdcall KeQueryPriorityThread(ptr)