x64x86arm64 / ntdllntoskrnl

_SM_VIRTUAL_REGION

← 10.0.28000.3231 16 builds latest →
union _SM_VIRTUAL_REGION;/* opaque */

Declared but not defined in ntoskrnl's public PDB for this build: a forward declaration, or a name that only appears in mangled C++ symbols. The layout isn't public here.