Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757327Ab3EVVHM (ORCPT ); Wed, 22 May 2013 17:07:12 -0400 Received: from co9ehsobe004.messaging.microsoft.com ([207.46.163.27]:56486 "EHLO co9outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756925Ab3EVVHK convert rfc822-to-8bit (ORCPT ); Wed, 22 May 2013 17:07:10 -0400 X-Forefront-Antispam-Report: CIP:70.37.183.190;KIP:(null);UIP:(null);IPV:NLI;H:mail.freescale.net;RD:none;EFVD:NLI X-SpamScore: -10 X-BigFish: VS-10(zzbb2dI98dI9371I1432I179dNzz1f42h1ee6h1de0h1fdah1202h1e76h1d1ah1d2ah1fc6hzzz2dh2a8h668h839h944hd2bhf0ah1288h12a5h12a9h12bdh137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1d0ch1d2eh1d3fh1dc1h1155h) Date: Wed, 22 May 2013 16:06:57 -0500 From: Scott Wood Subject: Re: [PATCH 3/4] KVM: PPC: Add support for IOMMU in-kernel handling To: Alexey Kardashevskiy CC: , , Alexey Kardashevskiy , Alexander Graf , , , Paul Mackerras , David Gibson In-Reply-To: <1369105607-20957-4-git-send-email-aik@ozlabs.ru> (from aik@ozlabs.ru on Mon May 20 22:06:46 2013) X-Mailer: Balsa 2.4.12 Message-ID: <1369256817.1374.29@scott-Lenovo-G560> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; delsp=Yes; format=Flowed Content-Disposition: inline Content-Transfer-Encoding: 8BIT X-OriginatorOrg: freescale.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2164 Lines: 66 On 05/20/2013 10:06:46 PM, Alexey Kardashevskiy wrote: > diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c > index 8465c2a..da6bf61 100644 > --- a/arch/powerpc/kvm/powerpc.c > @@ -396,6 +396,7 @@ int kvm_dev_ioctl_check_extension(long ext) > +++ b/arch/powerpc/kvm/powerpc.c > break; > #endif > case KVM_CAP_SPAPR_MULTITCE: > + case KVM_CAP_SPAPR_TCE_IOMMU: > r = 1; > break; > default: Don't advertise SPAPR capabilities if it's not book3s -- and probably there's some additional limitation that would be appropriate. > @@ -1025,6 +1026,17 @@ long kvm_arch_vm_ioctl(struct file *filp, > r = kvm_vm_ioctl_create_spapr_tce(kvm, &create_tce); > goto out; > } > + case KVM_CREATE_SPAPR_TCE_IOMMU: { > + struct kvm_create_spapr_tce_iommu create_tce_iommu; > + struct kvm *kvm = filp->private_data; > + > + r = -EFAULT; > + if (copy_from_user(&create_tce_iommu, argp, > + sizeof(create_tce_iommu))) > + goto out; > + r = kvm_vm_ioctl_create_spapr_tce_iommu(kvm, > &create_tce_iommu); > + goto out; > + } > #endif /* CONFIG_PPC_BOOK3S_64 */ > > #ifdef CONFIG_KVM_BOOK3S_64_HV > diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h > index 5a2afda..450c82a 100644 > --- a/include/uapi/linux/kvm.h > +++ b/include/uapi/linux/kvm.h > @@ -667,6 +667,7 @@ struct kvm_ppc_smmu_info { > #define KVM_CAP_PPC_RTAS 91 > #define KVM_CAP_IRQ_XICS 92 > #define KVM_CAP_SPAPR_MULTITCE (0x110000 + 89) > +#define KVM_CAP_SPAPR_TCE_IOMMU (0x110000 + 90) Hmm... > @@ -939,6 +940,9 @@ struct kvm_s390_ucas_mapping { > #define KVM_GET_DEVICE_ATTR _IOW(KVMIO, 0xe2, struct > kvm_device_attr) > #define KVM_HAS_DEVICE_ATTR _IOW(KVMIO, 0xe3, struct > kvm_device_attr) > > +/* ioctl for SPAPR TCE IOMMU */ > +#define KVM_CREATE_SPAPR_TCE_IOMMU _IOW(KVMIO, 0xe4, struct > kvm_create_spapr_tce_iommu) Shouldn't this go under the vm ioctl section? -Scott -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/