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Fri, 7 Aug 2026 17:08:16 +0000 (GMT) Received: from smtpav03.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3868D58064; Fri, 7 Aug 2026 17:08:16 +0000 (GMT) Received: from WIN-DU0DFC9G5VV.atx-us.ibm.com (unknown [9.16.62.165]) by smtpav03.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 7 Aug 2026 17:08:16 +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=tFKD/UAdgtr3EFxC2kVRRWIfnOWsXBj3g D0/ROj1CEA/ssRG0IuuqSrf/6iDAAib7OkwAIYgn25DS82BQLGkrl6cLlADc7wgx h8EJdN1Ebw6pP0IcUtF+v/CR+LdVOMnaB4jCjknUNhxszRsJ6QiDAws/Co3KDzKr +nHpJW2ODU8oXdAJMfrypbciOBF9zoPsgMAM+LY9JzxhkQlK+y9fnanU4HGl3Wmr jIHxLfusWjOQSz0xD/Qmme40z6MSsjEoxm6WZQjnhuq4B7vFXXtsfhamJGt5vn0p YL4DfJeEtOpB1e69D+wRo7dwRoEIR+XMLpKfrlVVxs8xL/d+BI0Lg== 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 v6 02/15] s390x/pci: Create function to contain translation status check Date: Fri, 7 Aug 2026 12:07:59 -0500 Message-Id: <20260807170812.658820-3-kshk@linux.ibm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260807170812.658820-1-kshk@linux.ibm.com> References: <20260807170812.658820-1-kshk@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 8MYtQhErxxm_v05Q_ji0jXBY9h0u5YvI X-Proofpoint-Spam-Info: AW1haW4tMjYwODA3MDEzMSBTYWx0ZWRfX/Y69BRrTNG3v HQtWC6h6W8EfuM/Ai+MlPHthY9/CTcsFCts7z9C5kZtSqTMgIYD5DwcS57NnllpfhqlXspjfvHP CRAC/+gaAc7YwS+YgGOSLIHwD7Ijzmw= X-Proofpoint-ORIG-GUID: 8MYtQhErxxm_v05Q_ji0jXBY9h0u5YvI X-Authority-Analysis: v=2.4 cv=afNRWxot c=1 sm=1 tr=0 ts=6a761103 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=aCv-BzsnQx_gTHabB28A:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODA3MDEzMSBTYWx0ZWRfX1eVb3X3UtZm1 T51D4+A/DGHh+P7LD74jmVs8olidv7DIRFuurwQuAxJO0nzEXo9hCcCuns3ytU36jPXCgr1gyQk 7YrtIbzVTT0MvhEvZYWzV2vGFgN6KYyz0JqteMPKNNqzPZhiqRjcUN8meHHUYPgRIIo7c4cynaj V+pXAe1H4cPL+grr4+XebhpYi3Xj6tTT/Qv7WeZmfNsJd0m0ByKVC/ztQggdds79dJUr8DAvILx mEKmGuv5pji9jSl6esIWQ6YuSz+7+sUq4FXeq9Vs2KaQtfljBcligCcxLBYGYqhc1ypK7sBytKy HUEZhx1QI5ELtFg9hFcfQIDq5sFIV4Og9EwOEUiZ82mdKVuY2ZH093sGdBTeM6gg8+l+x6c6N2P UTfUsKDDkCB825EvqsvRZe/kbzQUEgZrfEooezYRUGEXMihkEfJ+VJ84I6/qYCMmfzMiez4c+Xi RbRO7J+sduRTCGKgG/A== 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=2026-08-07_03,2026-08-07_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 phishscore=0 impostorscore=0 adultscore=0 suspectscore=0 bulkscore=0 clxscore=1015 priorityscore=1501 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608070131 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=148.163.156.1; envelope-from=kshk@linux.ibm.com; helo=mx0a-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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: 1786122648541158500 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