xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge tag 'kvm-arm-for-v4.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm

Browse Source 
From: Christoffer Dall <cdall@linaro.org>

KVM/ARM Fixes for v4.11-rc6

Fixes include:
 - Fix a problem with GICv3 userspace save/restore
 - Clarify GICv2 userspace save/restore ABI
 - Be more careful in clearing GIC LRs
 - Add missing synchronization primitive to our MMU handling code
This commit is contained in:
Radim Krčmář
2017-04-05 16:27:47 +02:00
parent 1fb883bb82 6d56111c92
commit 6fd6410311
9 changed files with 99 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
Documentation/virtual/kvm/devices/arm-vgic.txt
View File

@@ -83,6 +83,12 @@ Groups:
Bits for undefined preemption levels are RAZ/WI.
For historical reasons and to provide ABI compatibility with userspace we
export the GICC_PMR register in the format of the GICH_VMCR.VMPriMask
field in the lower 5 bits of a word, meaning that userspace must always
use the lower 5 bits to communicate with the KVM device and must shift the
value left by 3 places to obtain the actual priority mask level.
Limitations:
- Priorities are not implemented, and registers are RAZ/WI
- Currently only implemented for KVM_DEV_TYPE_ARM_VGIC_V2.