Hello,
The first goal of this series is to fix Linux 3.19 DOM0 boot on GICv3 systems
(see patch #1).
It turns out to a bigger series because there were some outstanding bugs in the
vGIC emulation. The most important one is the way we emulate the re-distributor.
Each re-distributor should be associated to a single processor and have it's
own range (see patch #8).
The breakdown of this series is:
* #1 - #8: vGICv3 fixes
* #9: vGICv3 log improvement
* #10 - #13: vGICv2 fixes
* #14: Drop unused fields
* #15: GICv3 doc improvement
Most of this patches should be backported to Xen 4.5/Xen 4.5 (see each patch).
Although, the one in GICv2 are not critical.
Changes since v2:
- 2 patches of the series turn into an XSA 118 [1]
- Correctly implement the re-distributor
- Drop the documentation patch as I succedeed to quickly implement the
re-distributor emulation
- Replace " Don't check the size when we ignore the write/read as
zero" patches by a new version to handle correctly RAZ/WI registers
- Bunch of new patch to fix registers emulation
For each changes see in each patch.
This series depends on XSA 118 [1] which has not been commited yet.
Sincerely yours,
[1] http://xenbits.xen.org/xsa/advisory-118.html
Julien Grall (15):
xen/arm: vgic-v3: Correctly set GICD_TYPER.IDbits
xen/arm: vgic-v3: Correctly set GICD_TYPER.CPUNumber
xen/arm: vgic-v3: Correctly handle GICD_CTLR
xen/arm: vgic-v3: Correctly handle RAZ/WI registers
xen/arm: vgic-v3: Correctly implement read into GICR_NSACR
xen/arm: vgic-v3: Set stride during domain initialization
xen/arm: vgic-v3: Use a struct to describe contiguous rdist regions
xen/arm: vgic-v3: Emulate correctly the re-distributor
xen/arm: vgic-v3: Clarify which distributor is used in the common
emulation
xen/arm: vgic-v2: Correctly set GICD_TYPER.CPUNumber
xen/arm: vgic-v2: Correctly handle RAZ/WI registers
xen/arm: vgic-v2: Take the lock when writing into GICD_CTLR
xen/arm: vgic-v2: GICD_I{S,C}PENDR* are only word-accessible
xen/arm: vgic: Drop iactive, ipend, pendsgi field
xen/arm: gic-v3: Update some comments in the code
xen/arch/arm/gic-v3.c | 44 ++--
xen/arch/arm/vgic-v2.c | 112 ++++------
xen/arch/arm/vgic-v3.c | 424 +++++++++++++++++++++++---------------
xen/include/asm-arm/domain.h | 17 +-
xen/include/asm-arm/gic.h | 1 +
xen/include/asm-arm/gic_v3_defs.h | 3 +
xen/include/asm-arm/vgic.h | 2 +-
7 files changed, 345 insertions(+), 258 deletions(-)
--
2.1.4
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