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Fri, 3 Jul 2026 07:52:58 +0000 (GMT) From: Narayana Murty N To: alex@shazbot.org, dmatlack@google.com, shuah@kernel.org Cc: amastro@fb.com, rananta@google.com, nnmlinux@linux.ibm.com, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, vaibhav@linux.ibm.com, sbhat@linux.ibm.com, harshpb@linux.ibm.com Subject: [RFC PATCH 5/6] selftests/vfio: Accept sPAPR errno for DMA range overflow Date: Thu, 2 Jul 2026 23:28:05 -0400 Message-ID: <20260703032806.40946-6-nnmlinux@linux.ibm.com> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20260703032806.40946-1-nnmlinux@linux.ibm.com> References: <20260703032806.40946-1-nnmlinux@linux.ibm.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Authority-Analysis: v=2.4 cv=RYqgzVtv c=1 sm=1 tr=0 ts=6a476a62 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=ajBrTgmHdYJPg3onodQA:9 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAzMDA3MyBTYWx0ZWRfXz9Irqb0CV3xd em4sEcMq9vyj59UXlHQ26/emFsorPnyxwYjeITKXghKz7feYMVDbRZMvEWbhFn5Vza4imWA4YXU x21JJXssORiPsV5652Rty5dfiOkxezM= X-Proofpoint-GUID: 4OQHNQh7_072l44LO9oHJQpfw3IfRAIq X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAzMDA3MyBTYWx0ZWRfX4rTeGh02QMol KUlfesOnBf4BY5zTD4nUTNKkUnYd3auuL5qcm+KCn+XXDLPg27iDzE+TePlaoDLW18KuGhEBRtJ lKUfLMPlWeLYMk70T6WfYDBkTUcDwjdEO3ivGw0jfmbkfi7M6xyUIzi42NHqL8cBrA0LVd7eLCm JapVtKvTxU1JOg7Vp1WFn44TY7JbQSrv7xn3v1YcBIi8Od+oZInjxtOcpBF/a7eq/TTBDCHg2Rv ePIFp57kX6VctbCuXYNRKPybOuB9zAv6Uc0wZSAsmvkt8s5fIzQe2ELOyWu2WmF4UbNMQ7doZP6 sn+ZaPVgX+t1+Sfq1VLYsdPJk4MPTqNwaIPrWq6sNkPsNBznZawKH6hUMdyaI9spWS5bxi8Ve8X iXToJLg8F4qcj+HK1ghriaXaMlPDgM4Q0Cjg+XszUpUrEnNa7MjCh7phgWFyp0hvHS6b8lKmuyj UXaFbgkEF9JPiBJjDmg== X-Proofpoint-ORIG-GUID: rOBww1WLgPgRxeKmAEZnNPtR67lmvonM X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-07-03_02,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 malwarescore=0 spamscore=0 lowpriorityscore=0 adultscore=0 priorityscore=1501 suspectscore=0 bulkscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607030073 Accept sPAPR errno for DMA range overflow The DMA map limit test expects an overflowing IOVA range to fail with -EOVERFLOW. That matches the Type1 and iommufd paths. On sPAPR TCE v2, the same invalid range is rejected as outside the active TCE window and currently returns -ENXIO. Treat that as the expected ppc result for this RFC while keeping the existing -EOVERFLOW expectation for other backends. This keeps the overflow test enabled for sPAPR TCE v2 instead of skipping it. Signed-off-by: Narayana Murty N --- tools/testing/selftests/vfio/vfio_dma_mapping_test.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/testing/selftests/vfio/vfio_dma_mapping_test.c b/tools/testing/selftests/vfio/vfio_dma_mapping_test.c index 4411fdbd56da..cd2d3276a46c 100644 --- a/tools/testing/selftests/vfio/vfio_dma_mapping_test.c +++ b/tools/testing/selftests/vfio/vfio_dma_mapping_test.c @@ -316,10 +316,18 @@ TEST_F(vfio_dma_map_limit_test, overflow) region->size = self->mmap_size; rc = __iommu_map(self->iommu, region); +#ifdef __powerpc__ + ASSERT_EQ(rc, -ENXIO); +#else ASSERT_EQ(rc, -EOVERFLOW); +#endif rc = __iommu_unmap(self->iommu, region, NULL); +#ifdef __powerpc__ + ASSERT_EQ(rc, -ENXIO); +#else ASSERT_EQ(rc, -EOVERFLOW); +#endif } int main(int argc, char *argv[]) -- 2.51.1