From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.ru (ozlabs.ru [83.169.36.222]) by lists.ozlabs.org (Postfix) with ESMTP id 3tZ7Zx1bHwzDw4F for ; Thu, 8 Dec 2016 19:20:08 +1100 (AEDT) From: Alexey Kardashevskiy To: linuxppc-dev@lists.ozlabs.org Cc: Alexey Kardashevskiy , Alex Williamson , David Gibson , Paul Mackerras , kvm-ppc@vger.kernel.org, kvm@vger.kernel.org Subject: [PATCH kernel 1/9] KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number Date: Thu, 8 Dec 2016 19:19:48 +1100 Message-Id: <20161208081956.26221-2-aik@ozlabs.ru> In-Reply-To: <20161208081956.26221-1-aik@ozlabs.ru> References: <20161208081956.26221-1-aik@ozlabs.ru> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This adds a capability number for in-kernel support for VFIO on SPAPR platform. The capability will tell the user space whether in-kernel handlers of H_PUT_TCE can handle VFIO-targeted requests or not. If not, the user space must not attempt allocating a TCE table in the host kernel via the KVM_CREATE_SPAPR_TCE KVM ioctl because in that case TCE requests will not be passed to the user space which is desired action in the situation like that. Signed-off-by: Alexey Kardashevskiy Reviewed-by: David Gibson --- include/uapi/linux/kvm.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 300ef255d1e0..810f74317987 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -870,6 +870,7 @@ struct kvm_ppc_smmu_info { #define KVM_CAP_S390_USER_INSTR0 130 #define KVM_CAP_MSI_DEVID 131 #define KVM_CAP_PPC_HTM 132 +#define KVM_CAP_SPAPR_TCE_VFIO 133 #ifdef KVM_CAP_IRQ_ROUTING -- 2.11.0