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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1718358876; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jSRIdmiUClQ9pX7X/Y3xsraO5rrerhKvl7FyHzAs9PE=; b=bnbc2AbyOS6P3PEvtGWYRsPXkx3Yfkz3w+PBAEJ8XUkKIRVJUBdQGTwf5K10uKuOBQu3VF Uh0DECv+iJCYagvoLBNjWA4Bsj/kw5zgeMRES4t/ZXu9ewy4MeLYEjK3nnx5HBBiKHE2jt Fzx6VTK7I6Z2XbR3Nd3HF04sN0MfTmM= X-MC-Unique: EWmWORHBOCu96nOiAfpaFg-1 From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, mst@redhat.com, jean-philippe@linaro.org, peter.maydell@linaro.org, clg@redhat.com, yanghliu@redhat.com, zhenzhong.duan@intel.com Cc: alex.williamson@redhat.com, jasowang@redhat.com, pbonzini@redhat.com, berrange@redhat.com Subject: [PATCH v4 3/8] HostIOMMUDevice: Introduce get_iova_ranges callback Date: Fri, 14 Jun 2024 11:52:53 +0200 Message-ID: <20240614095402.904691-4-eric.auger@redhat.com> In-Reply-To: <20240614095402.904691-1-eric.auger@redhat.com> References: <20240614095402.904691-1-eric.auger@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" Introduce a new HostIOMMUDevice callback that allows to retrieve the usable IOVA ranges. Implement this callback in the legacy VFIO and IOMMUFD VFIO host iommu devices. This relies on the VFIODevice agent's base container iova_ranges resource. Signed-off-by: Eric Auger Reviewed-by: Zhenzhong Duan --- v2 -> v3: - add g_assert(vdev) --- include/sysemu/host_iommu_device.h | 8 ++++++++ hw/vfio/container.c | 16 ++++++++++++++++ hw/vfio/iommufd.c | 16 ++++++++++++++++ 3 files changed, 40 insertions(+) diff --git a/include/sysemu/host_iommu_device.h b/include/sysemu/host_iommu= _device.h index 3e5f058e7b..40e0fa13ef 100644 --- a/include/sysemu/host_iommu_device.h +++ b/include/sysemu/host_iommu_device.h @@ -80,6 +80,14 @@ struct HostIOMMUDeviceClass { * i.e., HOST_IOMMU_DEVICE_CAP_AW_BITS. */ int (*get_cap)(HostIOMMUDevice *hiod, int cap, Error **errp); + /** + * @get_iova_ranges: Return the list of usable iova_ranges along with + * @hiod Host IOMMU device + * + * @hiod: handle to the host IOMMU device + * @errp: error handle + */ + GList* (*get_iova_ranges)(HostIOMMUDevice *hiod, Error **errp); }; =20 /* diff --git a/hw/vfio/container.c b/hw/vfio/container.c index b728b978a2..c48749c089 100644 --- a/hw/vfio/container.c +++ b/hw/vfio/container.c @@ -1164,12 +1164,28 @@ static int hiod_legacy_vfio_get_cap(HostIOMMUDevice= *hiod, int cap, } } =20 +static GList * +hiod_legacy_vfio_get_iova_ranges(HostIOMMUDevice *hiod, Error **errp) +{ + VFIODevice *vdev =3D hiod->agent; + GList *l =3D NULL; + + g_assert(vdev); + + if (vdev->bcontainer) { + l =3D g_list_copy(vdev->bcontainer->iova_ranges); + } + + return l; +} + static void hiod_legacy_vfio_class_init(ObjectClass *oc, void *data) { HostIOMMUDeviceClass *hioc =3D HOST_IOMMU_DEVICE_CLASS(oc); =20 hioc->realize =3D hiod_legacy_vfio_realize; hioc->get_cap =3D hiod_legacy_vfio_get_cap; + hioc->get_iova_ranges =3D hiod_legacy_vfio_get_iova_ranges; }; =20 static const TypeInfo types[] =3D { diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index dbdae1adbb..e502081c2a 100644 --- a/hw/vfio/iommufd.c +++ b/hw/vfio/iommufd.c @@ -645,11 +645,27 @@ static bool hiod_iommufd_vfio_realize(HostIOMMUDevice= *hiod, void *opaque, return true; } =20 +static GList * +hiod_iommufd_vfio_get_iova_ranges(HostIOMMUDevice *hiod, Error **errp) +{ + VFIODevice *vdev =3D hiod->agent; + GList *l =3D NULL; + + g_assert(vdev); + + if (vdev->bcontainer) { + l =3D g_list_copy(vdev->bcontainer->iova_ranges); + } + + return l; +} + static void hiod_iommufd_vfio_class_init(ObjectClass *oc, void *data) { HostIOMMUDeviceClass *hiodc =3D HOST_IOMMU_DEVICE_CLASS(oc); =20 hiodc->realize =3D hiod_iommufd_vfio_realize; + hiodc->get_iova_ranges =3D hiod_iommufd_vfio_get_iova_ranges; }; =20 static const TypeInfo types[] =3D { --=20 2.41.0