Re: [PATCH v1 19/24] vfio-user: secure DMA support

2022-12-12 Thread John Johnson 



> On Dec 9, 2022, at 10:01 AM, John Levon  wrote:
> 
> On Tue, Nov 08, 2022 at 03:13:41PM -0800, John Johnson wrote:
> 
>> Secure DMA forces the remote process to use DMA r/w messages
>> instead of directly mapping guest memeory.
> 
> I don't really get why this is called "secure" - shouldn't have an option name
> more closely resembling what it actually does?
> 

The option was added to address a security concern if the server has
mmap() access to guest memory.  I can re-name it.

JJ

Re: [PATCH v1 19/24] vfio-user: secure DMA support

2022-12-09 Thread John Levon 
On Tue, Nov 08, 2022 at 03:13:41PM -0800, John Johnson wrote:

> Secure DMA forces the remote process to use DMA r/w messages
> instead of directly mapping guest memeory.

I don't really get why this is called "secure" - shouldn't have an option name
more closely resembling what it actually does?

regards
john