Hi all,
the following commit:
commit 21550029f709072aacf3b90edd574e7d3021b400
Author: Julien Grall <julien.gr...@citrix.com>
Date: Thu Oct 8 19:23:53 2015 +0100
xen/arm: gic-v2: Automatically detect aliased GIC400
removed PLATFORM_QUIRK_GIC_64K_STRIDE and introduced an heuristic to
check whether the two GICC pages have a 64K stride. However the
heuristic needs device tree to report a GICC region size of 128K to work
properly. That is not the case for some versions of XGene (including the
one I am using, kindly provided by CloudLab.us).
The patch series fixes the issue by reintroducing platform quirks,
PLATFORM_QUIRK_GIC_64K_STRIDE, and forcing GICC size to 128K if
PLATFORM_QUIRK_GIC_64K_STRIDE.
We should consider this series for 4.8.
Changes in v3:
- add a warning when enabling the quirk
- update comment to match the new behavior of the quirk
Changes in v2:
- only set csize to SZ_128K if it is initially SZ_4K
- set vsize to match
- add warning if gicc is SZ_128K and not aliased
Stefano Stabellini (2):
Revert "xen/arm: platform: Drop the quirks callback"
Partially revert 21550029f709072aacf3b90edd574e7d3021b400
xen/arch/arm/gic-v2.c | 12 ++++++++++--
xen/arch/arm/platform.c | 10 ++++++++++
xen/arch/arm/platforms/xgene-storm.c | 6 ++++++
xen/include/asm-arm/platform.h | 14 ++++++++++++++
4 files changed, 40 insertions(+), 2 deletions(-)
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
https://lists.xen.org/xen-devel
