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Tue, 4 Aug 2026 02:44:50 +0000 (GMT) Received: from smtpav04.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1437058045; Tue, 4 Aug 2026 02:44:50 +0000 (GMT) Received: from WIN-DU0DFC9G5VV.ibm.com (unknown [9.61.249.58]) by smtpav04.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 4 Aug 2026 02:44:49 +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=ykBkzfwNpvXD3rFQ5 lL2trWuhx8VihceLw66pRmdAU0=; b=p/Ir4B4hhwl6ZEzfm1kA0Dyqk1Cczz6G9 rrJbCDM96iM2ZaYrxxYa3t9BXVvqe+rWyAjDA9S8gx3XQqvhJOxbx/OLHdbF7N0L ko+WYS4htgY4W0GthaJtbCgXLEK4Clfw9vqtGTBk0dZHVLsaOsUdrlh8StZnYlfe 8jZGSP7/WiV5kKwl9gHfj8Oo+vZm4wQ7eO/KsX2zXit+nXU+u5WhqRKlYjEJY1Z/ AyuVPukQ6OtE8samMIq+JbtyLRaLIXXyvI8tqu3jT/MEo7YzcEZeXIXfLHa5Xl0P sbPvBNkq6gvVdsyXISY8Vt0LDRO62Rsqm5psZ4yfeDF8eSQeXHhVQ== From: Konstantin Shkolnyy To: mjrosato@linux.ibm.com Cc: alifm@linux.ibm.com, farman@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 v5 02/15] s390x/pci: Create function to contain translation status check Date: Mon, 3 Aug 2026 21:44:30 -0500 Message-Id: <20260804024443.56445-3-kshk@linux.ibm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260804024443.56445-1-kshk@linux.ibm.com> References: <20260804024443.56445-1-kshk@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Info: AW1haW4tMjYwODA0MDAxNiBTYWx0ZWRfXwkcQu2Ild6zy goMYNqW1FYzb2b4NvhKl6WtJoyyLDVCBBK/ftvh3Q6UX3u1Z0ZxcooZJTpXkQlYoN9p2KhQcEfd ONeqikEWmKfAqOqZo2d3tgdj63cVahE= X-Authority-Analysis: v=2.4 cv=I7VVgtgg c=1 sm=1 tr=0 ts=6a715225 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VnNF1IyMAAAA:8 a=aCv-BzsnQx_gTHabB28A:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODA0MDAxNiBTYWx0ZWRfX7YcHZFfrYkvt AhOpdPVLylhlF4zOdH/H6uxHwdE2ZQVBp5eWywMtNBcU61/ziyszejirz/PEUq3DonaOkmNtN2J F/FJ0/Y7RupjkoLtx6Vfe1UrpRqzvem05A6n765hVQedRnTWOWcfDDliTaoOxqZJeT5R0tYOdvG r04ze9fbckXS/s79or2cRd6sjmHw7d5/JN8JxsLDf7ZdYIlEsL0Nb6TBaNg39zWlVmqxpPxPVWV nrEjvy6mP1pogzlCZzAwFFzY6uFZLAEj1xkgbi2+sjm1+OkA/uFVWt3+Xq0aemt0KTLV+qmF1gD HQTh/XZoVJ3xcNCr1/nRf61HxIQx6u6r70xEPX7ZAT0EYC94rLiEBnmBB7oQWNoAtMNAUdDmAaT rr99XdxjHUAgh2GTihhSvXzgBKpgHTxYMcLIdbLBChaSASJZYCc8X1rXqXqo9QYKwHb5eBRoVN1 84UdwIEbhACTjXdwuTQ== X-Proofpoint-ORIG-GUID: p4xVL12ajGygNvE2Cy_MFyFjH_dtYXDf X-Proofpoint-GUID: p4xVL12ajGygNvE2Cy_MFyFjH_dtYXDf X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-04_01,2026-08-03_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 malwarescore=0 adultscore=0 lowpriorityscore=0 phishscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608040016 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=lists1p.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: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 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_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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: 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: 1785811586738158500 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. Reviewed-by: Christian Borntraeger Reviewed-by: Matthew Rosato Reviewed-by: Farhan Ali Signed-off-by: Konstantin Shkolnyy --- 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 37ca70dcf1..00a847f493 100644 --- a/hw/s390x/s390-pci-inst.c +++ b/hw/s390x/s390-pci-inst.c @@ -1021,6 +1021,11 @@ 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) { @@ -1029,7 +1034,7 @@ 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