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a="19199736" X-IronPort-AV: E=Sophos;i="6.07,186,1708416000"; d="scan'208";a="19199736" X-CSE-ConnectionGUID: 13QfKuu2QaiwI0B/e4f+Jg== X-CSE-MsgGUID: Mr0nPNFWTk2LC9ThWK5AZQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,186,1708416000"; d="scan'208";a="19845213" From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, eric.auger@redhat.com, peterx@redhat.com, jasowang@redhat.com, mst@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, kevin.tian@intel.com, yi.l.liu@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v2 07/10] backends/iommufd: Implement get_host_iommu_info() callback Date: Mon, 8 Apr 2024 16:12:27 +0800 Message-Id: <20240408081230.1030078-8-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240408081230.1030078-1-zhenzhong.duan@intel.com> References: <20240408081230.1030078-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=192.198.163.10; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -51 X-Spam_score: -5.2 X-Spam_bar: ----- X-Spam_report: (-5.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.355, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1712564192593100003 Content-Type: text/plain; charset="utf-8" It calls iommufd_backend_get_device_info() to get host IOMMU related information. Define a common structure HIOD_IOMMUFD_INFO to describe the info returned from kernel. Currently only vtd, but easy to add arm smmu when kernel supports. Signed-off-by: Zhenzhong Duan --- include/sysemu/iommufd.h | 7 +++++++ backends/iommufd.c | 17 +++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/include/sysemu/iommufd.h b/include/sysemu/iommufd.h index fa1a866237..44ec1335b2 100644 --- a/include/sysemu/iommufd.h +++ b/include/sysemu/iommufd.h @@ -39,6 +39,13 @@ int iommufd_backend_get_device_info(IOMMUFDBackend *be, = uint32_t devid, enum iommu_hw_info_type *type, void *data, uint32_t len, Error **errp= ); =20 +typedef struct HIOD_IOMMUFD_INFO { + enum iommu_hw_info_type type; + union { + struct iommu_hw_info_vtd vtd; + } data; +} HIOD_IOMMUFD_INFO; + #define TYPE_HIOD_IOMMUFD TYPE_HOST_IOMMU_DEVICE "-iommufd" OBJECT_DECLARE_TYPE(HIODIOMMUFD, HIODIOMMUFDClass, HIOD_IOMMUFD) =20 diff --git a/backends/iommufd.c b/backends/iommufd.c index 559affa9ec..1e9c469e65 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -240,8 +240,25 @@ void hiod_iommufd_init(HIODIOMMUFD *idev, IOMMUFDBacke= nd *iommufd, idev->devid =3D devid; } =20 +static int hiod_iommufd_get_host_iommu_info(HostIOMMUDevice *hiod, + void *data, uint32_t len, + Error **errp) +{ + HIODIOMMUFD *idev =3D HIOD_IOMMUFD(hiod); + HIOD_IOMMUFD_INFO *info =3D data; + + assert(sizeof(HIOD_IOMMUFD_INFO) <=3D len); + + return iommufd_backend_get_device_info(idev->iommufd, idev->devid, + &info->type, &info->data, + sizeof(info->data), errp); +} + static void hiod_iommufd_class_init(ObjectClass *oc, void *data) { + HostIOMMUDeviceClass *hiodc =3D HOST_IOMMU_DEVICE_CLASS(oc); + + hiodc->get_host_iommu_info =3D hiod_iommufd_get_host_iommu_info; } =20 static const TypeInfo types[] =3D { --=20 2.34.1