mbox series

[Xen-devel,v2,0/2] xen/arm: GICv3: Only initialize ITS when LPIs are available

Message ID 20180124182616.3384-1-julien.grall@linaro.org
Headers show
Series xen/arm: GICv3: Only initialize ITS when LPIs are available | expand

Message

Julien Grall Jan. 24, 2018, 6:26 p.m. UTC 
Hi all,

This small patch series fix an issue I discovered when using the Foundation
model and the DT provided by Linux upstream.

Indeed the Device-Tree is exposing an ITS but LPIs are not available.
Resulting to an early crash on Xen.

Whilst this looks a DT issue, Linux is able to cope with it. So I think Xen
should also cope with such DT.

Cheers,

Julien Grall (2):
  xen/arm: GICv3: Parse ITS information from the firmware tables later
    on
  xen/arm: GICv3: Only initialize ITS when the distributor supports
    LPIs.

 xen/arch/arm/gic-v3-its.c        | 47 +++++++++++++++++++++++++---------------
 xen/arch/arm/gic-v3.c            | 19 +++++++++-------
 xen/include/asm-arm/gic_v3_its.h | 12 ----------
 3 files changed, 41 insertions(+), 37 deletions(-)