// storport.h

typedef struct _MEMORY_REGION {
  PUCHAR           VirtualBase;
  PHYSICAL_ADDRESS PhysicalBase;
  ULONG            Length;
} MEMORY_REGION, *PMEMORY_REGION;
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Windows Driver Kit DDI reference (ns-storport-_memory_region)

_MEMORY_REGION structure

Description

The MEMORY_REGION structure describes a region of physically contiguous memory.

Members

`VirtualBase`

The beginning virtual address of the memory region.

`PhysicalBase`

The beginning physical address of the memory region.

`Length`

The size, in bytes, of the memory region.

Remarks

The DumpRegion member of the PORT_CONFIGURATION_INFORMATION structure holds a MEMORY_REGION structure that describes a region of physically contiguous memory that a miniport driver can use during a crash dump.

MEMORY_REGION - NtDoc