lkml.org 
[lkml]   [2019]   [Apr]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v3 02/10] swiotlb: Factor out slot allocation and free
On Tue, Apr 23, 2019 at 03:32:16PM +0800, Lu Baolu wrote:
> When we add the bounce buffer between IOVA and physical buffer, the
> bounced buffer must starts from the same offset in a page, otherwise,
> IOMMU can't work here.

Why? Even with the odd hardware descriptors typical in Intel land that
only allow offsets in the first page, not the following ones, having
a zero offset where we previously had one should be fine.

\
 
 \ /
  Last update: 2019-04-24 16:46    [W:0.112 / U:0.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site