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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Only the KVM_DEV_ARM_VGIC_GRP_CTRL->KVM_DEV_ARM_VGIC_CTRL_INIT op is currently supported. All other ops are stubbed out. Co-authored-by: Timothy Hayes Signed-off-by: Timothy Hayes Signed-off-by: Sascha Bischoff --- arch/arm64/kvm/vgic/vgic-kvm-device.c | 72 +++++++++++++++++++++++++++ include/linux/kvm_host.h | 1 + 2 files changed, 73 insertions(+) diff --git a/arch/arm64/kvm/vgic/vgic-kvm-device.c b/arch/arm64/kvm/vgic/vg= ic-kvm-device.c index b12ba99a423e5..78903182bba08 100644 --- a/arch/arm64/kvm/vgic/vgic-kvm-device.c +++ b/arch/arm64/kvm/vgic/vgic-kvm-device.c @@ -336,6 +336,9 @@ int kvm_register_vgic_device(unsigned long type) break; ret =3D kvm_vgic_register_its_device(); break; + case KVM_DEV_TYPE_ARM_VGIC_V5: + ret =3D kvm_register_device_ops(&kvm_arm_vgic_v5_ops, + KVM_DEV_TYPE_ARM_VGIC_V5); } =20 return ret; @@ -715,3 +718,72 @@ struct kvm_device_ops kvm_arm_vgic_v3_ops =3D { .get_attr =3D vgic_v3_get_attr, .has_attr =3D vgic_v3_has_attr, }; + +static int vgic_v5_set_attr(struct kvm_device *dev, + struct kvm_device_attr *attr) +{ + switch (attr->group) { + case KVM_DEV_ARM_VGIC_GRP_ADDR: + case KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS: + case KVM_DEV_ARM_VGIC_GRP_NR_IRQS: + break; + case KVM_DEV_ARM_VGIC_GRP_CTRL: + switch (attr->attr) { + case KVM_DEV_ARM_VGIC_CTRL_INIT: + return vgic_set_common_attr(dev, attr); + default: + break; + } + } + + return -ENXIO; +} + +static int vgic_v5_get_attr(struct kvm_device *dev, + struct kvm_device_attr *attr) +{ + switch (attr->group) { + case KVM_DEV_ARM_VGIC_GRP_ADDR: + case KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS: + case KVM_DEV_ARM_VGIC_GRP_NR_IRQS: + break; + case KVM_DEV_ARM_VGIC_GRP_CTRL: + switch (attr->attr) { + case KVM_DEV_ARM_VGIC_CTRL_INIT: + return vgic_get_common_attr(dev, attr); + default: + break; + } + } + + return -ENXIO; +} + +static int vgic_v5_has_attr(struct kvm_device *dev, + struct kvm_device_attr *attr) +{ + switch (attr->group) { + case KVM_DEV_ARM_VGIC_GRP_ADDR: + case KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS: + case KVM_DEV_ARM_VGIC_GRP_NR_IRQS: + break; + case KVM_DEV_ARM_VGIC_GRP_CTRL: + switch (attr->attr) { + case KVM_DEV_ARM_VGIC_CTRL_INIT: + return 0; + default: + break; + } + } + + return -ENXIO; +} + +struct kvm_device_ops kvm_arm_vgic_v5_ops =3D { + .name =3D "kvm-arm-vgic-v5", + .create =3D vgic_create, + .destroy =3D vgic_destroy, + .set_attr =3D vgic_v5_set_attr, + .get_attr =3D vgic_v5_get_attr, + .has_attr =3D vgic_v5_has_attr, +}; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index d93f75b05ae22..d6082f06ccae3 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -2368,6 +2368,7 @@ void kvm_unregister_device_ops(u32 type); extern struct kvm_device_ops kvm_mpic_ops; extern struct kvm_device_ops kvm_arm_vgic_v2_ops; extern struct kvm_device_ops kvm_arm_vgic_v3_ops; +extern struct kvm_device_ops kvm_arm_vgic_v5_ops; =20 #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT =20 --=20 2.34.1