Re: [PATCH v6 02/24] KVM: arm/arm64: Add GICV3 pending table save API documentation

Christoffer Dall
2017-05-04T13:21:24Z

On Thu, May 04, 2017 at 01:44:22PM +0200, Eric Auger wrote:
> Add description for how to save GICV3 LPI pending bit into
> guest RAM pending tables.
>
> Signed-off-by: Eric Auger <eric.auger@redhat.com>
>

Acked-by: Christoffer Dall <cdall@linaro.org>

> ---
> v5: creation
> ---
> Documentation/virtual/kvm/devices/arm-vgic-v3.txt | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/Documentation/virtual/kvm/devices/arm-vgic-v3.txt b/Documentation/virtual/kvm/devices/arm-vgic-v3.txt
> index c1a2461..9293b45 100644
> --- a/Documentation/virtual/kvm/devices/arm-vgic-v3.txt
> +++ b/Documentation/virtual/kvm/devices/arm-vgic-v3.txt
> @@ -167,11 +167,17 @@ Groups:
> KVM_DEV_ARM_VGIC_CTRL_INIT
> request the initialization of the VGIC, no additional parameter in
> kvm_device_attr.addr.
> + KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES
> + save all LPI pending bits into guest RAM pending tables.
> +
> + The first kB of the pending table is not altered by this operation.
> Errors:
> -ENXIO: VGIC not properly configured as required prior to calling
> this attribute
> -ENODEV: no online VCPU
> -ENOMEM: memory shortage when allocating vgic internal data
> + -EFAULT: Invalid guest ram access
> + -EBUSY: One or more VCPUS are running
>
>
> KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO
> --
> 2.5.5
>