KVM: arm/arm64: Documentation: Update arm-vgic-v3.txt
Update error code returned for Invalid CPU interface register
value and access in AArch32 mode.
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@cavium.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
diff --git a/Documentation/virtual/kvm/devices/arm-vgic-v3.txt b/Documentation/virtual/kvm/devices/arm-vgic-v3.txt
index 9348b3c..c1a2461 100644
--- a/Documentation/virtual/kvm/devices/arm-vgic-v3.txt
+++ b/Documentation/virtual/kvm/devices/arm-vgic-v3.txt
@@ -118,7 +118,7 @@
-EBUSY: One or more VCPUs are running
- KVM_DEV_ARM_VGIC_CPU_SYSREGS
+ KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS
Attributes:
The attr field of kvm_device_attr encodes two values:
bits: | 63 .... 32 | 31 .... 16 | 15 .... 0 |
@@ -139,13 +139,15 @@
All system regs accessed through this API are (rw, 64-bit) and
kvm_device_attr.addr points to a __u64 value.
- KVM_DEV_ARM_VGIC_CPU_SYSREGS accesses the CPU interface registers for the
+ KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS accesses the CPU interface registers for the
CPU specified by the mpidr field.
+ CPU interface registers access is not implemented for AArch32 mode.
+ Error -ENXIO is returned when accessed in AArch32 mode.
Errors:
-ENXIO: Getting or setting this register is not yet supported
-EBUSY: VCPU is running
- -EINVAL: Invalid mpidr supplied
+ -EINVAL: Invalid mpidr or register value supplied
KVM_DEV_ARM_VGIC_GRP_NR_IRQS
@@ -204,3 +206,6 @@
architecture defined MPIDR, and the field is encoded as follows:
| 63 .... 56 | 55 .... 48 | 47 .... 40 | 39 .... 32 |
| Aff3 | Aff2 | Aff1 | Aff0 |
+ Errors:
+ -EINVAL: vINTID is not multiple of 32 or
+ info field is not VGIC_LEVEL_INFO_LINE_LEVEL