From: Eric Auger Date: Fri, 14 Apr 2017 08:18:12 +0000 (+0200) Subject: KVM: arm/arm64: Add GICV3 pending table save API documentation X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=100e62983ef3a012e62e0e7116035529a286c1ec;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git KVM: arm/arm64: Add GICV3 pending table save API documentation Add description for how to save GICV3 LPI pending bit into guest RAM pending tables. Signed-off-by: Eric Auger Acked-by: Christoffer Dall Acked-by: Marc Zyngier --- diff --git a/Documentation/virtual/kvm/devices/arm-vgic-v3.txt b/Documentation/virtual/kvm/devices/arm-vgic-v3.txt index c1a24612c198..9293b45abdb9 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