lkml.org 
[lkml]   [2022]   [Mar]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH RFC 0/3] MAP_POPULATE for device memory
On Mon, Mar 07, 2022 at 03:29:35PM +0200, Jarkko Sakkinen wrote:
> So what would you suggest to sort out the issue? I'm happy to go with
> ioctl if nothing else is acceptable.

PLenty of drivers treat all mmaps as if MAP_POPULATE was specified,
typically by using (io_)remap_pfn_range. If there any reason to only
optionally have the pre-fault semantics for sgx? If not this should
be really simple. And if we have a real need for it to be optional
we'll just need to find a sane way to pass that information to ->mmap.

\
 
 \ /
  Last update: 2022-03-07 16:58    [W:0.076 / U:2.160 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site