lkml.org 
[lkml]   [2018]   [Aug]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC 0/4] Virtio uses DMA API for all devices
On Fri, Aug 03, 2018 at 10:17:32PM +0300, Michael S. Tsirkin wrote:
> It seems reasonable to teach a platform to override dma-range
> for a specific device e.g. in case it knows about bugs in ACPI.

A platform will be able override dma-range using the dev->bus_dma_mask
field starting in 4.19. But we'll still need a way how to

a) document in the virtio spec that all bus dma quirks are to be
applied
b) a way to document in a virtio-related spec how the bus handles
dma for Ben's totally fucked up hypervisor. Without that there
is not way we'll get interoperable implementations.

\
 
 \ /
  Last update: 2018-08-04 10:15    [W:0.201 / U:0.440 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site