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| author | Vijaya Kumar K <Vijaya.Kumar@cavium.com> | 2017-01-26 15:20:47 +0100 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2017-01-30 14:47:07 +0100 |
| commit | 94574c9488e253c65ad2e8955163e330f07119b6 (patch) | |
| tree | 1e117aae2d377e820b8d80570746abd021fb9a03 /Documentation/firmware_class | |
| parent | KVM: arm/arm64: vgic: Implement support for userspace access (diff) | |
| download | linux-94574c9488e253c65ad2e8955163e330f07119b6.tar.xz linux-94574c9488e253c65ad2e8955163e330f07119b6.zip | |
KVM: arm/arm64: vgic: Add distributor and redistributor access
VGICv3 Distributor and Redistributor registers are accessed using
KVM_DEV_ARM_VGIC_GRP_DIST_REGS and KVM_DEV_ARM_VGIC_GRP_REDIST_REGS
with KVM_SET_DEVICE_ATTR and KVM_GET_DEVICE_ATTR ioctls.
These registers are accessed as 32-bit and cpu mpidr
value passed along with register offset is used to identify the
cpu for redistributor registers access.
The version of VGIC v3 specification is defined here
Documentation/virtual/kvm/devices/arm-vgic-v3.txt
Also update arch/arm/include/uapi/asm/kvm.h to compile for
AArch32 mode.
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@cavium.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'Documentation/firmware_class')
0 files changed, 0 insertions, 0 deletions