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Tsirkin" , Marcel Apfelbaum , Jason Wang , Richard Henderson , Eduardo Habkost , Avihai Horon , Jason Gunthorpe , Joao Martins Subject: [PATCH v4 10/15] intel-iommu: Implement IOMMU_ATTR_MAX_IOVA get_attr() attribute Date: Thu, 22 Jun 2023 22:48:40 +0100 Message-Id: <20230622214845.3980-11-joao.m.martins@oracle.com> In-Reply-To: <20230622214845.3980-1-joao.m.martins@oracle.com> References: <20230622214845.3980-1-joao.m.martins@oracle.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-06-22_16,2023-06-22_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 adultscore=0 spamscore=0 phishscore=0 suspectscore=0 malwarescore=0 bulkscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2306220186 X-Proofpoint-ORIG-GUID: ZXWFStTShDYH87vFRp9vROKOTcwmhV_V X-Proofpoint-GUID: ZXWFStTShDYH87vFRp9vROKOTcwmhV_V Received-SPF: pass client-ip=205.220.165.32; envelope-from=joao.m.martins@oracle.com; helo=mx0a-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Avihai Horon Implement get_attr() method and use the address width property to report the IOMMU_ATTR_MAX_IOVA attribute. Signed-off-by: Avihai Horon Signed-off-by: Joao Martins --- hw/i386/intel_iommu.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index ed2a46e008df..989993e303a6 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -3876,6 +3876,13 @@ static int vtd_iommu_get_attr(IOMMUMemoryRegion *iommu_mr, *enabled = s->dma_translation; break; } + case IOMMU_ATTR_MAX_IOVA: + { + hwaddr *max_iova = (hwaddr *)(uintptr_t) data; + + *max_iova = MAKE_64BIT_MASK(0, s->aw_bits);; + break; + } default: ret = -EINVAL; break;