lkml.org 
[lkml]   [2018]   [Feb]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH 0/2] vfio: platform: Improve reset support
Date
	Hi all,

This patch series improves reset support for vfio-platform:
- The first patch fixes a bug I ran into while working on this.
- The second patch implements generic DT reset support, for devices
that are connected to an SoC-internal reset controller and can be
reset in a generic way. This avoids having to write/change a
vfio-specific reset driver for each and every device to be
passed-through to a guest.

This has been tested using the R-Car Gen3 GPIO Pass-Through Prototype
posted last week: the GPIO module is reset before QEMU opens the vfio
device, and reset again after QEMU has released it, as can be witnessed
by the LEDs on the Salvator-XS board.

Thanks for your comments!

Geert Uytterhoeven (2):
vfio: platform: Fix reset module leak in error path
vfio: platform: Add generic DT reset support

drivers/vfio/platform/vfio_platform_common.c | 38 ++++++++++++++++++++++-----
drivers/vfio/platform/vfio_platform_private.h | 1 +
2 files changed, 32 insertions(+), 7 deletions(-)

--
2.7.4

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

\
 
 \ /
  Last update: 2018-02-13 17:38    [W:0.093 / U:42.520 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site