[PATCH 2/4] ntdll: Report logical cores per physical core through mask.
Roderick Colenbrander
thunderbird2k at gmail.com
Thu Jun 14 00:48:03 CDT 2018
Signed-off-by: Roderick Colenbrander <thunderbird2k at gmail.com>
---
dlls/ntdll/nt.c | 28 ++++++++++++++++++++++------
1 file changed, 22 insertions(+), 6 deletions(-)
diff --git a/dlls/ntdll/nt.c b/dlls/ntdll/nt.c
index e6458b98f2..0b69f7de44 100644
--- a/dlls/ntdll/nt.c
+++ b/dlls/ntdll/nt.c
@@ -1325,8 +1325,16 @@ static inline BOOL logical_proc_info_add_by_id(SYSTEM_LOGICAL_PROCESSOR_INFORMAT
(*pdata)[i].ProcessorMask |= mask;
return TRUE;
}
- }else
- i = *len;
+ }
+ else
+ {
+ for(i=0; i<*len; i++)
+ {
+ if ((*pdata)[i].Relationship==rel && (*pdata)[i].ProcessorMask==mask &&
+ (*pdata)[i].u.Reserved[1]==id)
+ return TRUE;
+ }
+ }
while(*len == *pmax_len)
{
@@ -1352,6 +1360,11 @@ static inline BOOL logical_proc_info_add_by_id(SYSTEM_LOGICAL_PROCESSOR_INFORMAT
dataex->u.Processor.GroupMask[0].Mask |= mask;
return TRUE;
}
+ else if (rel == RelationProcessorCore && dataex->Relationship == rel &&
+ dataex->u.Processor.GroupMask[0].Mask == mask && dataex->u.Processor.Reserved[1] == id)
+ {
+ return TRUE;
+ }
ofs += dataex->Size;
}
@@ -1548,6 +1561,8 @@ static NTSTATUS create_logical_proc_info(SYSTEM_LOGICAL_PROCESSOR_INFORMATION **
for(i=beg; i<=end; i++)
{
+ ULONG_PTR thread_mask = 0;
+
if(i > 8*sizeof(ULONG_PTR))
{
FIXME("skipping logical processor %d\n", i);
@@ -1568,15 +1583,16 @@ static NTSTATUS create_logical_proc_info(SYSTEM_LOGICAL_PROCESSOR_INFORMATION **
return STATUS_NO_MEMORY;
}
- sprintf(name, core_info, i, "core_id");
+ /* Mask of logical threads sharing same physical core. */
+ sprintf(name, core_info, i, "thread_siblings");
f = fopen(name, "r");
if(f)
{
- fscanf(f, "%u", &r);
+ fscanf(f, "%lx", &thread_mask);
fclose(f);
}
- else r = i;
- if(!logical_proc_info_add_by_id(data, dataex, &len, max_len, RelationProcessorCore, r, (ULONG_PTR)1 << i))
+ else thread_mask = 1<<i;
+ if(!logical_proc_info_add_by_id(data, dataex, &len, max_len, RelationProcessorCore, r, thread_mask))
{
fclose(fcpu_list);
return STATUS_NO_MEMORY;
--
2.14.4
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