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| author | Vijaya Kumar K <Vijaya.Kumar@cavium.com> | 2017-01-26 17:20:53 +0300 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2017-01-30 16:47:33 +0300 |
| commit | e363e05e12d76b3311618d442ad545dff4d08728 (patch) | |
| tree | fcf9561cdbdf060ed935666be508c2fa63ac371b /Documentation/virtual | |
| parent | e96a006cb0663cca88c45ce125ec5e183f568f80 (diff) | |
| download | linux-e363e05e12d76b3311618d442ad545dff4d08728.tar.xz | |
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>
Diffstat (limited to 'Documentation/virtual')
| -rw-r--r-- | Documentation/virtual/kvm/devices/arm-vgic-v3.txt | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/Documentation/virtual/kvm/devices/arm-vgic-v3.txt b/Documentation/virtual/kvm/devices/arm-vgic-v3.txt index 9348b3caccd7..c1a24612c198 100644 --- a/Documentation/virtual/kvm/devices/arm-vgic-v3.txt +++ b/Documentation/virtual/kvm/devices/arm-vgic-v3.txt @@ -118,7 +118,7 @@ Groups: -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 @@ Groups: 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 @@ Groups: 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 |