Crate virtio_accel_hexagon 

Qualcomm Hexagon NPU backend for virtio-accel.

The portable portion validates TOSA 1.0 artifacts and creates a provider-local, fixed binding and operation plan. Native modules are compiled only for Windows ARM64 when a complete public QAIRT/QNN SDK is detected. SDK-free hosts retain that portable code and a constructor that reports the unavailable runtime without importing Qualcomm dependencies into portable crates.

Structs

HexagonAccelerator

Placeholder that keeps workspace consumers portable when no complete QNN SDK was detected.

Enums

InitError

Failure to initialize a Qualcomm Hexagon backend instance.

LoweringError

Failure while validating and planning a graph for QNN HTP.

Constants

HEXAGON_TOSA_CAPABILITY

Conservative floating-profile capability boundary for the validated QNN HTP tier.

HEXAGON_TOSA_INTEGER_CAPABILITY

Conservative exact integer-profile capability boundary for the validated QNN HTP tier.

HEXAGON_TOSA_INTEGER_TARGET

TOSA integer-profile target lowered with exact INT8 storage and INT32 accumulation.

HEXAGON_TOSA_TARGET

TOSA declaration accepted by the first Hexagon tier.

REQUIRED_RESIDENT_BYTES

Conservative program-residency charge until QNN publishes a finite graph allocation bound.

TESTED_QAIRT_RELEASE

Native QNN runtime and ABI version validated by the initial backend tier.

Functions

supports_tosa_dtype

Whether the first hardware tier may expose dtype at a model boundary.

supports_tosa_operator

Whether the first hardware tier has a QNN lowering for op.