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(unknown [9.10.239.198]) by smtpav02.wdc07v.mail.ibm.com (Postfix) with ESMTP; Mon, 8 Sep 2025 20:01:41 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pp1; bh=fZOZox g7igdwogfpAglTMT6Shj0FQyUQiuiOwaA1oeQ=; b=syWnllZX4qBj3J4NgcJwxl NDubR5QdwFNarFX62Elg1nl2nAx9CHknk5IgETzSi8IQQ0hemtO/zkRpgRGRsrHU /1NDzPQTlzwIwKelPJoQaP9t6gY3d/uLXlpnX63TfXnzvQwSSA3WTJFtk+02heXZ WYJRBfovDQ2Tm+eB4axtTMotakOr7GEj1cKPnHMV6QCmUISPFI9G6mWh57T2r2Cj XpbHlmLIfhF69ZjWic0wuWmMbF8jQF0vnGdM235QZaHAlyPRLxXDDBcYukWCNPSL zXrAE+uFDAAw8VCZCiRublz9jHQ+8bBxs/0xHuOnFMD9jDkPn5SIrT3fkaSTAWlg == From: Glenn Miles To: qemu-devel@nongnu.org Cc: Glenn Miles , qemu-ppc@nongnu.org, clg@redhat.com, npiggin@gmail.com, harshpb@linux.ibm.com, thuth@redhat.com, rathc@linux.ibm.com, richard.henderson@linaro.org Subject: [PATCH v3 8/9] hw/ppc: Add a test machine for the IBM PPE42 CPU Date: Mon, 8 Sep 2025 15:00:18 -0500 Message-ID: <20250908200028.115789-9-milesg@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250908200028.115789-1-milesg@linux.ibm.com> References: <20250908200028.115789-1-milesg@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: Ut1b7i_PhXw9d04VjZ03XIOnR7_3vMss X-Proofpoint-GUID: 0QyPqm9jp2HSoTSoftALthXVvo4ZIssi X-Authority-Analysis: v=2.4 cv=EYDIQOmC c=1 sm=1 tr=0 ts=68bf3629 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=VnNF1IyMAAAA:8 a=69wJf7TsAAAA:8 a=up-X0YpDAAAA:8 a=eFQqLMc9Qz5AkApmWogA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=Fg1AiH1G6rFz08G2ETeA:22 a=86FmjZgct7XXK6GGpxvI:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTA2MDAyMCBTYWx0ZWRfX51j1wj/h8t00 a1EjPi/WYlh7rpHhd5lbfcX26KerWkaExFYYMbFtwhB0LXfIDhlrnoNpPGOOY57LKACR0ZJCeER 7JCMwPPnBFQeI8aTygF+djLjOVnQRapJ8ss4y6TJJXIHR4v93pLkVTSoKXq/C6Iqkfvyf5maYJm 85dwCNxscbC6vO14Ii2e3b2KgSgUexMR0k2aMhhg26JzJXF+a0tPNOmcLJAzIkZP0b8DYvvIEZ4 YJsluVwcEkNjXCvcmQwRGB7Hswy9zrRdB7UXV0EOV3BJJGBS58K+bPnJXddHvvb4qPZg7Qu/NEe pJQzBHEMXCC0AHMMAE6vW1H/uvpMH0/kjQLVW6+an2gbJVB5MpIbpkrg/9TeqEcvWSX5gIY2E/c S515R+sU X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-08_06,2025-09-08_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 adultscore=0 suspectscore=0 spamscore=0 impostorscore=0 priorityscore=1501 phishscore=0 clxscore=1015 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509060020 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=148.163.156.1; envelope-from=milesg@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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 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: 1757361908017116600 Adds a test machine for the IBM PPE42 processor, including a DEC, FIT, WDT and 512 KiB of ram. The purpose of this machine is only to provide a generic platform for testing instructions of the recently added PPE42 processor model which is used extensively in the IBM Power9, Power10 and future Power server processors. Signed-off-by: Glenn Miles --- Changes from v2: - Moved decrementer changes to distinct commit - Introduced a specific MachineState for the ppe42 Machine - Use qdev_realize to create the machine - Use valid_cpu_types to determine validity of CPU - Changed machine ram limit from 2GB to 512KB MAINTAINERS | 6 +++ hw/ppc/Kconfig | 9 ++++ hw/ppc/meson.build | 2 + hw/ppc/ppe42_machine.c | 102 +++++++++++++++++++++++++++++++++++++++++ 4 files changed, 119 insertions(+) create mode 100644 hw/ppc/ppe42_machine.c diff --git a/MAINTAINERS b/MAINTAINERS index a07086ed76..52fa303e0a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1531,6 +1531,12 @@ F: include/hw/pci-host/grackle.h F: pc-bios/qemu_vga.ndrv F: tests/functional/test_ppc_mac.py =20 +PPE42 +M: Glenn Miles +L: qemu-ppc@nongnu.org +S: Odd Fixes +F: hw/ppc/ppe42_machine.c + PReP M: Herv=C3=A9 Poussineau L: qemu-ppc@nongnu.org diff --git a/hw/ppc/Kconfig b/hw/ppc/Kconfig index ced6bbc740..3fdea5919c 100644 --- a/hw/ppc/Kconfig +++ b/hw/ppc/Kconfig @@ -44,6 +44,15 @@ config POWERNV select SSI_M25P80 select PNV_SPI =20 +config PPC405 + bool + default y + depends on PPC + select M48T59 + select PFLASH_CFI02 + select PPC4XX + select SERIAL + config PPC440 bool default y diff --git a/hw/ppc/meson.build b/hw/ppc/meson.build index 9893f8adeb..170b90ae7d 100644 --- a/hw/ppc/meson.build +++ b/hw/ppc/meson.build @@ -57,6 +57,8 @@ ppc_ss.add(when: 'CONFIG_POWERNV', if_true: files( 'pnv_n1_chiplet.c', )) # PowerPC 4xx boards +ppc_ss.add(when: 'CONFIG_PPC405', if_true: files( + 'ppe42_machine.c')) ppc_ss.add(when: 'CONFIG_PPC440', if_true: files( 'ppc440_bamboo.c', 'ppc440_uc.c')) diff --git a/hw/ppc/ppe42_machine.c b/hw/ppc/ppe42_machine.c new file mode 100644 index 0000000000..2cfce2503f --- /dev/null +++ b/hw/ppc/ppe42_machine.c @@ -0,0 +1,102 @@ +/* + * Test Machine for the IBM PPE42 processor + * + * Copyright (c) 2025, IBM Corporation. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "qemu/osdep.h" +#include "qemu/units.h" +#include "qemu/error-report.h" +#include "system/address-spaces.h" +#include "hw/boards.h" +#include "hw/ppc/ppc.h" +#include "system/system.h" +#include "system/reset.h" +#include "system/kvm.h" +#include "qapi/error.h" + +#define TYPE_PPE42_MACHINE MACHINE_TYPE_NAME("ppe42_machine") +typedef MachineClass Ppe42MachineClass; +typedef struct Ppe42MachineState Ppe42MachineState; +DECLARE_OBJ_CHECKERS(Ppe42MachineState, Ppe42MachineClass, + PPE42_MACHINE, TYPE_PPE42_MACHINE) + +struct Ppe42MachineState { + MachineState parent_obj; + + PowerPCCPU cpu; +}; + +static void main_cpu_reset(void *opaque) +{ + PowerPCCPU *cpu =3D opaque; + + cpu_reset(CPU(cpu)); +} + +static void ppe42_machine_init(MachineState *machine) +{ + Ppe42MachineState *pms =3D PPE42_MACHINE(machine); + PowerPCCPU *cpu =3D &pms->cpu; + + if (kvm_enabled()) { + error_report("machine %s does not support the KVM accelerator", + MACHINE_GET_CLASS(machine)->name); + exit(EXIT_FAILURE); + } + + /* init CPU */ + object_initialize_child(OBJECT(pms), "cpu", cpu, machine->cpu_type); + if (!qdev_realize(DEVICE(cpu), NULL, &error_fatal)) { + return; + } + + qemu_register_reset(main_cpu_reset, cpu); + + /* This sets the decrementer timebase */ + ppc_booke_timers_init(cpu, 37500000, PPC_TIMER_PPE); + + /* RAM */ + if (machine->ram_size > 512 * KiB) { + error_report("RAM size more than 512 KiB is not supported"); + exit(1); + } + memory_region_add_subregion(get_system_memory(), 0xfff80000, machine->= ram); +} + + +static void ppe42_machine_class_init(ObjectClass *oc, const void *data) +{ + MachineClass *mc =3D MACHINE_CLASS(oc); + static const char * const valid_cpu_types[] =3D { + POWERPC_CPU_TYPE_NAME("PPE42"), + POWERPC_CPU_TYPE_NAME("PPE42X"), + POWERPC_CPU_TYPE_NAME("PPE42XM"), + NULL, + }; + + mc->desc =3D "PPE42 Test Machine"; + mc->init =3D ppe42_machine_init; + mc->default_cpu_type =3D POWERPC_CPU_TYPE_NAME("PPE42XM"); + mc->valid_cpu_types =3D valid_cpu_types; + mc->default_ram_id =3D "ram"; + mc->default_ram_size =3D 512 * KiB; +} + +static const TypeInfo ppe42_machine_info =3D { + .name =3D TYPE_PPE42_MACHINE, + .parent =3D TYPE_MACHINE, + .instance_size =3D sizeof(Ppe42MachineState), + .class_init =3D ppe42_machine_class_init, + .class_size =3D sizeof(Ppe42MachineClass), +}; + +static void ppe42_machine_register_types(void) +{ + type_register_static(&ppe42_machine_info); +} + +type_init(ppe42_machine_register_types); + --=20 2.43.0