HvSetEventLogGroupSources function
The HvSetEventLogGroupSources function enables or disables specific event sources that are associated with the specific event log type.
Syntax
HV_STATUS HvSetEventLogGroupSources( _In_ HV_EVENTLOG_TYPE Type, _In_ UINT64 EnableFlags );
Parameters
- Type [in]
-
An HV_EVENTLOG_TYPE value that specifies the type of the event log buffer group for which event sources are enabled or disabled.
- EnableFlags [in]
-
A 64-bitmask that specifies the event sources to enable. The meaning of each bit in the mask depends on the event log type. For tracing to start, this mask must be nonzero; that is, at least one event source must be enabled.
Return value
HvSetEventLogGroupSources returns one of the following values. In addition to these values, HvSetEventLogGroupSources can also return one of the values that are specified in Common Hypercall Status Codes.
| Return code | Description |
|---|---|
|
HvSetEventLogGroupSources successfully enabled or disabled specific event sources. |
|
The caller is not the root partition. |
|
The specified event log type is invalid. |
|
The event log buffer group is not initialized. |
Remarks
HvSetEventLogGroupSources allows the guest to enable or disable a set of up to 64 event sources. When the EnableFlags parameter is set to zero, event logging is disabled.
HvSetEventLogGroupSources has the following restrictions:
-
The caller must be the root partition.
Native Interface
| HvSetEventLogGroupSources [fast] | |
|---|---|
|
Call Code = 0x0066 | |
| Input Parameters | |
|
0 |
Type (4 bytes) Padding (4 bytes) |
|
8 |
EnableFlags (8 bytes) |
Requirements
|
Version | HvSetEventLogGroupSources is available in version 1.0 and later versions of the hypervisor. |
|---|---|
|
Header |
|
|
IRQL | Any level |
See also
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Build date: 11/16/2013