Dynamic boot image streaming

摘要

The present disclosure describes apparatuses and techniques for dynamic boot image streaming. In some aspects a memory controller that is streaming multiple boot images from a first memory to a second memory is stalled, a descriptor for streaming one of the multiple boot images from the first memory to a non-contiguous memory location is generated while the memory controller is stalled, and the memory controller is resumed effective to cause the memory controller to stream, based on the descriptor generated while the memory controller is stalled, the second boot image to the non-contiguous memory location.

主权项

1. A method comprising:
causing a memory controller that is streaming, via a direct memory access (DMA) operation, multiple boot images from a first memory to a second memory to execute a link-to-self effective to stall the memory controller after streaming a first one of the multiple boot images to the second memory, the second memory accessible by a host device associated with the memory controller; generating, via a processor of the host device, while the memory controller is stalled, and based on the first boot image streamed to the second memory, a descriptor for streaming a second one of the multiple boot images from the first memory to a non-contiguous memory location; and pointing, via the processor of the host device, the link-to-self descriptor to a location of the descriptor for streaming the second boot image effective to resume the memory controller to stream, based on the descriptor and via another DMA operation, the second boot image to the non-contiguous memory location.