On 15-Oct-19 6:30 AM, Ajit Khaparde wrote:
From: Rajesh Ravi <rajesh.r...@broadcom.com>
Support external custom memory added to heap to be used with vfio with
--iso-cmem option.Type1 memory mapping was by passed for external memory.
But an exception is added to allow external custom memory to be used with
vfio.
Signed-off-by: Rajesh Ravi <rajesh.r...@broadcom.com>
Reviewed-by: Jonathan Richardson <jonathan.richard...@broadcom.com>
Reviewed-by: Scott Branden <scott.bran...@broadcom.com>
Reviewed-by: Vikram Mysore Prakash <vikram.prak...@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khapa...@broadcom.com>
---
Hi,
First of all, what is "iso-cmem"? It doesn't seem to have any defined
meaning nor any relation to any existing functionality, and it's not
explained anywhere what is "isolated cmem".
More importantly, why is this necessary? Type1 map only bypasses
external segments when adding memory at startup - it doesn't stop you
from calling rte_vfio_dma_map() to map the memory with VFIO when you
create the segment.
--
Thanks,
Anatoly
