// d3dukmdt.h

typedef struct _D3DDDIGPUVIRTUALADDRESS_PROTECTION_TYPE {
  union {
    struct {
      UINT64 Write : 1;
      UINT64 Execute : 1;
      UINT64 Zero : 1;
      UINT64 NoAccess : 1;
      UINT64 SystemUseOnly : 1;
      UINT64 Reserved : 59;
    };
    D3DKMT_ALIGN64 UINT64 Value;
  };
} D3DDDIGPUVIRTUALADDRESS_PROTECTION_TYPE;
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Windows Driver Kit DDI reference (ns-d3dukmdt-_d3dddigpuvirtualaddress_protection_type)

D3DDDIGPUVIRTUALADDRESS_PROTECTION_TYPE structure

Description

The D3DDDIGPUVIRTUALADDRESS_PROTECTION_TYPE structure specifies the protection on the GPU virtual address that is mapped.

Members

`Write`

The pages will be allowed read-write access.

`Execute`

The pages will be allowed execute access.

`Zero`

The pages will be put to the Zero state (hAllocation must be NULL). Reads return zero and writes are discarded in this state.

`NoAccess`

The pages will be put to the Invalid state (hAllocation must be NULL).

`SystemUseOnly`

This member is for system use only and should not be set by the user-mode driver.

`Reserved`

This member is reserved and should be set to zero.

`Value`

The consolidated value of the structure's members.

D3DDDIGPUVIRTUALADDRESS_PROTECTION_TYPE - NtDoc