From mboxrd@z Thu Jan 1 00:00:00 1970 From: eric.auger@linaro.org (Eric Auger) Date: Mon, 25 Aug 2014 15:27:43 +0200 Subject: [RFC 8/9] KVM: KVM-VFIO: add kvm_vfio_arch_data and accessors In-Reply-To: <1408973264-30384-1-git-send-email-eric.auger@linaro.org> References: <1408973264-30384-1-git-send-email-eric.auger@linaro.org> Message-ID: <1408973264-30384-9-git-send-email-eric.auger@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org add a pointer to architecture specific data in kvm_vfio struct add accessors to keep kvm_vfio private Signed-off-by: Eric Auger --- arch/arm/include/asm/kvm_host.h | 8 ++++++++ virt/kvm/vfio.c | 21 +++++++++++++++++++++ 2 files changed, 29 insertions(+) diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index 62cbf5b..4f1edbf 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -177,6 +177,14 @@ void kvm_vfio_device_put_external_user(struct vfio_device *vdev); int kvm_vfio_external_get_type(struct vfio_device *vdev); struct device *kvm_vfio_external_get_base_device(struct vfio_device *vdev); +struct kvm_vfio; +struct kvm_vfio_arch_data; +void kvm_vfio_device_set_arch_data(struct kvm_vfio *kv, + struct kvm_vfio_arch_data *ptr); +struct kvm_vfio_arch_data *kvm_vfio_device_get_arch_data(struct kvm_vfio *kv); +void kvm_vfio_lock(struct kvm_vfio *kv); +void kvm_vfio_unlock(struct kvm_vfio *kv); + /* We do not have shadow page tables, hence the empty hooks */ static inline int kvm_age_hva(struct kvm *kvm, unsigned long hva) { diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c index f1c4e35..177b71e 100644 --- a/virt/kvm/vfio.c +++ b/virt/kvm/vfio.c @@ -28,6 +28,7 @@ struct kvm_vfio { struct list_head group_list; struct mutex lock; bool noncoherent; + struct kvm_vfio_arch_data *arch_data; }; static struct vfio_group *kvm_vfio_group_get_external_user(struct file *filep) @@ -338,6 +339,26 @@ static int kvm_vfio_create(struct kvm_device *dev, u32 type) return 0; } +void kvm_vfio_device_set_arch_data(struct kvm_vfio *kv, + struct kvm_vfio_arch_data *ptr) +{ + kv->arch_data = ptr; +} + +struct kvm_vfio_arch_data *kvm_vfio_device_get_arch_data(struct kvm_vfio *kv) +{ + return kv->arch_data; +} + +void kvm_vfio_lock(struct kvm_vfio *kv) +{ + mutex_lock(&kv->lock); +} + +void kvm_vfio_unlock(struct kvm_vfio *kv) +{ + mutex_unlock(&kv->lock); +} struct kvm_device_ops kvm_vfio_ops = { .name = "kvm-vfio", -- 1.9.1