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Tue, 23 Jun 2026 06:32:07 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 44CF720040; Tue, 23 Jun 2026 06:32:05 +0000 (GMT) Received: from shivang.com (unknown [9.124.222.24]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 23 Jun 2026 06:32:04 +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=nAxZQCkO7gPAL9PsM 1ooFYJe1kt5VVBPiNbD7aR5/HY=; b=DBXnI/miurDW0H4twT/xSFNkgrckcqXZP KGljDjBUvdnEwPzPr5frWNYjuVhTa5QwvRFu0RTeqcIvUl/RX0Ews3S88citfOEB zkrngFcvQjZhQvInCGyzMVlcVq43VPWrOCAFjInfwflFkL12w+TpDhB9mKTqXNgj DFaOwCqDZ/HTxIg2+mrPui41QJiB0nAUnMtY8AFIjY4+PJFj0Xai27HVrB0XG0Ry gemS/OOllr041Bs7zr/gNdVNKPVyOJBaapuJgHuYPbDEn5VZ4jSdiYwu+o81SzKO fKEaCxwzDLwV+9ahikFizNzsnTsg7KYN5Tkwr+gptwmt+Nh8fuEsw== From: Shivang Upadhyay To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Cc: adityag@linux.ibm.com, harshpb@linux.ibm.com, npiggin@gmail.com, milesg@linux.ibm.com, Shivang Upadhyay Subject: [PATCH 1/2] ppc/pnv: avoid regenerating DTB if external DTB is present Date: Tue, 23 Jun 2026 12:01:55 +0530 Message-ID: <20260623063156.1110370-2-shivangu@linux.ibm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260623063156.1110370-1-shivangu@linux.ibm.com> References: <20260623063156.1110370-1-shivangu@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-ORIG-GUID: 5okkoRrHDdeAg-P6zJbOL1scL0ycB39O X-Proofpoint-GUID: 6WBtQO5vGsnKeWkkTZxQnLPfqLQ1KR4z X-Authority-Analysis: v=2.4 cv=Y4XIdBeN c=1 sm=1 tr=0 ts=6a3a286e cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VnNF1IyMAAAA:8 a=GMkvtKszqFOxO4YX43IA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjIzMDA0OCBTYWx0ZWRfXxhusjXEh76Vm KjRNzxcZ0oTxp8uhfMkLie8veO+VNCbdIcIJmfluo2slu9gHtnpMik/LoptpMlTo2gZ4UXtbn91 t9BqSqpvfI++gaXvFEIBJ0gs6j8GF3eI00xjFdq5AvsoKQT4K0OKTT7V0MbcB1umHCG9NxSKm45 6oUd7J9rwEiP3Amy2FZp6YTbHyG+RbcFR2QrFkdyuk+S9c1KBjVA59oAl1ywOTOuUbyP3a/9f2f QHKsktjignxbhqvHd+9bzepoAcIaN6vBWxKTBxptzkqDZcbMUFMys5sxa1UFR4iK7odqb++PiH8 iZf6SIjMzb0H6LWgsZ4W72YNjF4ckIjINFCvwstGGiSkVsKR5nQxtvxuxjg818WIgUNp0DBJB5Q UihzUvg7Lwx6v59AIRjbxL/Eg14L8bAsqCUkDTmDc39pYBLp91UPT/g8KHIgJfZuPJxS+4b0hZ0 E/1N76dT56Bmdg+qbIg== X-Proofpoint-Spam-Info: AW1haW4tMjYwNjIzMDA0OCBTYWx0ZWRfX7hmFa5BVgZyP 6cOmUGamQqg93lnPOwrn6uMGerX9NCHenirInWzv0JYzAAWqA+mNAWXRMmLxr/YolzM1BvAwBQ7 L5V4/vyjYM7e6v1zawMB53zPobuToNo= 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=2026-06-23_01,2026-06-22_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 priorityscore=1501 malwarescore=0 lowpriorityscore=0 spamscore=0 clxscore=1015 suspectscore=0 impostorscore=0 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606230048 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=shivangu@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=0.001, 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: 1782196398047158500 Content-Type: text/plain; charset="utf-8" Signed-off-by: Shivang Upadhyay --- hw/ppc/pnv.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 62812f22f8..6a636b5192 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -803,8 +803,14 @@ static void pnv_reset(MachineState *machine, ResetType= type) mpipl_write_succeeded =3D do_mpipl_write(pnv); } =20 - /* Regenerate device tree */ - fdt =3D pnv_dt_create(machine); + if (machine->dtb) { + int file_size; /* discard */ + fdt =3D load_device_tree(machine->dtb, &file_size); + } else { + /* Regenerate device tree */ + fdt =3D pnv_dt_create(machine); + } + _FDT((fdt_pack(fdt))); =20 /* --=20 2.54.0 From nobody Sun Jul 26 12:31:24 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=linux.ibm.com ARC-Seal: i=1; a=rsa-sha256; t=1782196396; cv=none; d=zohomail.com; s=zohoarc; b=L88IGWFWoaOPdgNGHwR0PaNkGOf3aLlyusWCmdpzesBBUZ3hX1Eg/pe2n3MUAdydnpyJTYFgANIfQ9V3fhK0bp0khsFKM4KLfid7ZDFzk0TVURnMq5CfOhx0Ln382gXsxrteBcSQVnKlmlxrO6sVraJeL07xxrsZHgH81JrJoiE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1782196396; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; 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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=shivangu@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=0.001, 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: 1782196398062158500 Content-Type: text/plain; charset="utf-8" Signed-off-by: Shivang Upadhyay --- tests/functional/ppc64/test_powernv.py | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/tests/functional/ppc64/test_powernv.py b/tests/functional/ppc6= 4/test_powernv.py index 0ea6c93e42..80801ee3dc 100755 --- a/tests/functional/ppc64/test_powernv.py +++ b/tests/functional/ppc64/test_powernv.py @@ -27,6 +27,11 @@ class PowernvMachine(LinuxKernelTest): 'buildroot/qemu_ppc64le_powernv8-2025.02/rootfs.ext2'), 'aee2192b692077c4bde31cb56ce474424b358f17cec323d5c94af3970c9aada2') =20 + # testdtb for power11, which contains string "hello world" in command = line + ASSET_SAMPLE_DTB =3D Asset( + ('https://github.com/roz3x/qemu/raw/refs/heads/sample-dtb/output.d= tb'), + '2dd3330561768fc5c8e4b93aa29bc44c64278d186f1e0f8c584cdf15c3f8cf43') + def do_test_linux_boot(self, command_line =3D KERNEL_COMMON_COMMAND_LI= NE): self.require_accelerator("tcg") kernel_path =3D self.ASSET_KERNEL.fetch() @@ -104,6 +109,20 @@ def do_test_ppc64_powernv(self, proc): # Device detection output driven by udev probing is sometimes cut = off # from console output, suspect S14silence-console init script. =20 + def test_ppc64_powernv_external_dtb(self): + self.set_machine('powernv11') + self.require_accelerator("tcg") + + kernel_path =3D self.ASSET_KERNEL.fetch() + sample_dtb_path =3D self.ASSET_SAMPLE_DTB.fetch() + self.vm.set_console() + self.vm.add_args('-kernel', kernel_path, + '-dtb', sample_dtb_path) + self.vm.launch() + + # check if custom dtb is reflected or not + wait_for_console_pattern(self, "Kernel command line: hello world",= self.panic_message) + def test_powernv8(self): self.set_machine('powernv8') self.do_test_ppc64_powernv('P8') --=20 2.54.0