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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1717771166; 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=8m2kYAzpkGJ3Ey1H6NVbak4uUSK3PzHJop1nhkRKo+c=; b=AyYzPR0L5hvqIZhIks6ViO8YA10LmppVikCkiqfblIxRHBLkvJokbhlOynoL5zN6WQNU7z MpzySzJPH2Yp7RpPGFLwv0aY1AP1dHWxoPtVRH7rGs5g1cHN/S4+mrgPVFTadkFR8AxYuN Ld8i7jUfqjgjKffkM63fIzt7Gq92smY= X-MC-Unique: jz2ezpk1MUmu6D9BnI5Uxw-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, imammedo@redhat.com, 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: [RFC v2 1/7] HostIOMMUDevice: Store the VFIO/VDPA agent Date: Fri, 7 Jun 2024 16:37:21 +0200 Message-ID: <20240607143905.765133-2-eric.auger@redhat.com> In-Reply-To: <20240607143905.765133-1-eric.auger@redhat.com> References: <20240607143905.765133-1-eric.auger@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 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" Store the agent device (VFIO or VDPA) in the host IOMMU device. This will allow easy access to some of its resources. Signed-off-by: Eric Auger Reviewed-by: Zhenzhong Duan =20 --- include/sysemu/host_iommu_device.h | 1 + hw/vfio/container.c | 1 + hw/vfio/iommufd.c | 2 ++ 3 files changed, 4 insertions(+) diff --git a/include/sysemu/host_iommu_device.h b/include/sysemu/host_iommu= _device.h index a57873958b..3e5f058e7b 100644 --- a/include/sysemu/host_iommu_device.h +++ b/include/sysemu/host_iommu_device.h @@ -34,6 +34,7 @@ struct HostIOMMUDevice { Object parent_obj; =20 char *name; + void *agent; /* pointer to agent device, ie. VFIO or VDPA device */ HostIOMMUDeviceCaps caps; }; =20 diff --git a/hw/vfio/container.c b/hw/vfio/container.c index 26e6f7fb4f..b728b978a2 100644 --- a/hw/vfio/container.c +++ b/hw/vfio/container.c @@ -1145,6 +1145,7 @@ static bool hiod_legacy_vfio_realize(HostIOMMUDevice = *hiod, void *opaque, =20 hiod->name =3D g_strdup(vdev->name); hiod->caps.aw_bits =3D vfio_device_get_aw_bits(vdev); + hiod->agent =3D opaque; =20 return true; } diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index 409ed3dcc9..dbdae1adbb 100644 --- a/hw/vfio/iommufd.c +++ b/hw/vfio/iommufd.c @@ -631,6 +631,8 @@ static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *= hiod, void *opaque, struct iommu_hw_info_vtd vtd; } data; =20 + hiod->agent =3D opaque; + if (!iommufd_backend_get_device_info(vdev->iommufd, vdev->devid, &type, &data, sizeof(data), errp)= ) { return false; --=20 2.41.0