Re: [RFC PATCH 2/3] vfio/hisilicon: register the driver to vfio
From: Jason Gunthorpe
Date: Wed May 12 2021 - 08:10:58 EST
On Wed, May 12, 2021 at 04:39:43PM +0800, liulongfang wrote:
> Therefore, this method of limiting the length of the BAR
> configuration space can prevent unsafe operations of the memory.
The issue is DMA controlled by the guest accessing the secure BAR
area, not the guest CPU.
Jason