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Thu, 2 Apr 2026 02:29:53 +0000 (GMT) Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7DB03580F7; Thu, 2 Apr 2026 02:29:52 +0000 (GMT) Received: from WIN-DU0DFC9G5VV.ibm.com (unknown [9.61.247.119]) by smtpav06.wdc07v.mail.ibm.com (Postfix) with ESMTP; Thu, 2 Apr 2026 02:29:52 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=2nAuGIzcGNveeUJaf 4mJJ38OhIA5CorGjubqRHHjhZ8=; b=NLPWrDciDIkl4PsB+Z+mHRHeWYsYZi2Ja WelER1831fPNJZC0xRFQL60d3gfnCZ7Hn9JLlGuhG3odsmp1BCj2TzN9Um+hkyrF JHG9GcBEFnDcAwtacTGEQSW8s4FWGJ2WRec2OyHyf5nk8RLAuojeUKLxtcE8gV7A qnj0CexhwRKTpGav1w+R2tSfqFI+YxvR6iQCTRE9iAlFHPpGVn5ASutT1PqvkGtT En8u/yLmmlG39bN8llsAFe4VnmrgXCrWFwnrwZ8KAVbevr9mee4qCQRz9DPC+FnD Rq2vgrkBAjA/WcJcVMd+tWAh73Qcn8SZhsSQ717nqdiEFFXc7YhsA== From: Konstantin Shkolnyy To: mjrosato@linux.ibm.com Cc: alifm@linux.ibm.com, richard.henderson@linaro.org, iii@linux.ibm.com, david@kernel.org, cohuck@redhat.com, pasic@linux.ibm.com, borntraeger@linux.ibm.com, qemu-s390x@nongnu.org, qemu-devel@nongnu.org, Konstantin Shkolnyy Subject: [PATCH 02/15] s390x/pci: Create function to contain translation status check Date: Wed, 1 Apr 2026 21:29:08 -0500 Message-Id: <20260402022921.298818-3-kshk@linux.ibm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260402022921.298818-1-kshk@linux.ibm.com> References: <20260402022921.298818-1-kshk@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=J6enLQnS c=1 sm=1 tr=0 ts=69cdd4a2 cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=VnNF1IyMAAAA:8 a=aCv-BzsnQx_gTHabB28A:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDAyMDAxOSBTYWx0ZWRfX5niHhBrBqYXQ IzPtOF7m27HTh4KagUm8I1b7DRfFOqDSf3LBJfJBRVh+2mC+HhniY0iePUYdsT2YGBS+TlG/Yk4 OsQgOGzn3a8a2gN9L5DfqDqQtFYszKAhyTrUaU2LKpwMr/wYl98atv0K47ivSYy1tpFm30d4cjk wICK1KVdJ2LFR5Znm8cIlhvoyLRI9/g+qNZUVOJWn01avV/Zt7t1ziLjGoqItQ61jm9f7TsKn8x vm7Z9fv9xczjkv+kERxjNxRkAuGZnp8ZPtY+qlR6Z565QYRPDrhjiiHOI+AhK3B1GYBmnBe7DrF 8yMYvX0htOKQBvkFdc4ajtOyRrl53KELxZJ9kWOEtRN51qipKNQLVaLHBGTtWaZQ2qoFbKc4VKU 4jR7luOM8AwSYUH1DV98O3iC1FxSL1USz6hkzjQsQqB1BLPbyv4qN9gP6e72X0EzNbawF9U4c1Z 4C6a1w65tHfe7mXA/hw== X-Proofpoint-GUID: bJt34xR9ATA-_JbR33aWrVNOlWS51Tl8 X-Proofpoint-ORIG-GUID: bJt34xR9ATA-_JbR33aWrVNOlWS51Tl8 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-01_05,2026-04-01_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 clxscore=1011 adultscore=0 priorityscore=1501 bulkscore=0 phishscore=0 malwarescore=0 lowpriorityscore=0 spamscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604020019 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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=kshk@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=1, RCVD_IN_VALIDITY_RPBL_BLOCKED=1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1775097055778158501 Content-Type: text/plain; charset="utf-8" Make it more clear what the bit means, and the new function will be called from yet another place in the future. Signed-off-by: Konstantin Shkolnyy Reviewed-by: Christian Borntraeger --- hw/s390x/s390-pci-inst.c | 7 ++++++- include/hw/s390x/s390-pci-bus.h | 1 + 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c index 1834596076..7c784b31f3 100644 --- a/hw/s390x/s390-pci-inst.c +++ b/hw/s390x/s390-pci-inst.c @@ -993,6 +993,11 @@ int pci_dereg_irqs(S390PCIBusDevice *pbdev) return 0; } =20 +bool s390_pci_is_translation_enabled(uint64_t g_iota) +{ + return ((g_iota >> 11) & 0x1) !=3D 0; /* "T" bit */ +} + static int reg_ioat(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib f= ib, uintptr_t ra) { @@ -1001,7 +1006,7 @@ static int reg_ioat(CPUS390XState *env, S390PCIBusDev= ice *pbdev, ZpciFib fib, uint64_t pal =3D ldq_be_p(&fib.pal); uint64_t g_iota =3D ldq_be_p(&fib.iota); uint8_t dt =3D (g_iota >> 2) & 0x7; - uint8_t t =3D (g_iota >> 11) & 0x1; + bool t =3D s390_pci_is_translation_enabled(g_iota); =20 pba &=3D ~0xfff; pal |=3D 0xfff; diff --git a/include/hw/s390x/s390-pci-bus.h b/include/hw/s390x/s390-pci-bu= s.h index 9228523ce8..eb15cb8b2d 100644 --- a/include/hw/s390x/s390-pci-bus.h +++ b/include/hw/s390x/s390-pci-bus.h @@ -390,6 +390,7 @@ int pci_chsc_sei_nt2_get_event(void *res); int pci_chsc_sei_nt2_have_event(void); void s390_pci_sclp_configure(SCCB *sccb); void s390_pci_sclp_deconfigure(SCCB *sccb); +bool s390_pci_is_translation_enabled(uint64_t g_iota); void s390_pci_iommu_enable(S390PCIIOMMU *iommu); void s390_pci_iommu_direct_map_enable(S390PCIIOMMU *iommu); void s390_pci_iommu_disable(S390PCIIOMMU *iommu); --=20 2.34.1