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DXGKARG_GPUP_SAVE_IMMUTABLE_MIGRATION_DATA structure (d3dkmddi.h)

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The DXGKARG_GPUP_SAVE_IMMUTABLE_MIGRATION_DATA structure is used in a call to DxgkDdiSaveImmutableMigrationData to save immutable data for a live migration that is about to start.

Syntax

typedef struct _DXGKARG_GPUP_SAVE_IMMUTABLE_MIGRATION_DATA {
  UINT   vfIndex;
  UINT64 *DataSize;
  BYTE   *Data;
} DXGKARG_GPUP_SAVE_IMMUTABLE_MIGRATION_DATA;

Members

vfIndex

[in] Identifies the virtual function / vDEV being referenced. This index value localizes to the specific virtual device.

DataSize

[in/out] The size, in bytes, of the data buffer that Data points to. On the first call toDxgkDdiSaveImmutableMigrationData, the input value is 0 to indicate that the driver should return the required size of the buffer.

Data

[in/out] A pointer to a buffer that contains the immutable data to be saved. On the first call to DxgkDdiSaveImmutableMigrationData, this pointer is NULL to indicate that the driver should return the required size of the buffer in DataSize.

Remarks

For more information, see Live migration on GPU-P devices.

Requirements

Requirement Value
Minimum supported client Windows 11, version 24H2 (WDDM 3.2)
Header d3dkmddi.h

See also

DxgkDdiSaveImmutableMigrationData