Modifier

WHvSetPartitionProperty

  • Article

Syntax

HRESULT
WINAPI
WHvSetPartitionProperty(
    _In_ WHV_PARTITION_HANDLE Partition,
    _In_ WHV_PARTITION_PROPERTY_CODE PropertyCode,
    _In_reads_bytes_(PropertyBufferSizeInBytes) const VOID* PropertyBuffer,
    _In_ UINT32 PropertyBufferSizeInBytes
    );

Parameters

Partition

Handle to the partition object. 

PropertyCode

Specifies the property that is being set.

PropertyBuffer

Specifies the input buffer that provides the property value. 

PropertyBufferSizeInBytes

Specifies the size of the input buffer, in bytes. 

Return Value

If the operation completed successfully, the return value is S_OK. 

The function returns WHV_E_UNKNOWN_PROPERTY for attempts to configure a property that is not available on the current system. 

The function returns E_INVALIDARG if the property cannot be modified in the current state of the partition, particularly for attempts to set a property prior to the WHvSetupPartition function. Starting in Insider Preview Builds (19H2), the following properties can be modified after the WHvSetupPartition function: WHvPartitionPropertyCodeExtendedVmExits WHvPartitionPropertyCodeExceptionExitBitmap WHvPartitionPropertyCodeX64MsrExitBitmap WHvPartitionPropertyCodeCpuidExitList