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[82.218.84.190]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-385ccd2db2dsm4685119f8f.14.2024.11.29.07.25.32 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 29 Nov 2024 07:25:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=philjordan-eu.20230601.gappssmtp.com; s=20230601; t=1732893935; x=1733498735; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=eD7MJs3r84SBzX4ObGFcoh1sx/E1Dk/XLpA94N0Z7Bk=; b=YusSWjirzNBQUKFJSOKRn7hY6PlfeKtfyx75HjJCoUm4Hj7MlU83LlBQ2f3izGb/FY 6Sb184ZrSNu3A2+ywJ5gD0I+Hyw0f97BlnzeUNQXFvCAzdyZuFdC0Lxet9zAAcYNW01X tkqmFr51sEMvVpYNM5pC5oJ3AgKH/E/QTj0E4Ulmf7AS15NltxS7qEh1KIfbGKMPpVfl yvDQRPue75PmIRCcMPvityG1/O7tzmjuM9pj62auYXFRYS1t2MCeOa9W3EnKmoal8dYm DpCcdDScopbMzoi3A/WmwMW+CZE/SoZ3RBVWESK39Kg2DZGuyrFxTMEjCOnYULp+Ttjo YAHQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1732893935; x=1733498735; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=eD7MJs3r84SBzX4ObGFcoh1sx/E1Dk/XLpA94N0Z7Bk=; b=nqD7dYTWmHHoMbkzmrEcFAhLugxnVZMsU7pI0cxhQ0DXF3yYNeUL40ox/b2UiAC6Ou SRJQEReXOT154cbDWKMq4d+qd1pG0f2NQJ31ljEkhG2vmMj54t+dm0VmFYgeQl/vDtSt djU9Ocb/bEjLahim35s517OUVY99UWC2CMGy/cSXmVlR/UOVfqq571sx0Lq+V2C2fQ+/ 4DD+pJQ1YHTI0Wg3erTE7FfaZ1Vf2opmyek1EW7MdBjko3gu+Y94O9tGxc7xSQo0QklK zTDsIByd0eabNoaA+xbuywiqo9dA03RRJt49Gv3SuUJ1Q3Fxr7qOCN34LdhhsYdaso24 UZFQ== X-Gm-Message-State: AOJu0YxCvRJvT7xxxrZZuM5B9tPoaCTto6ts8s6dZODQ6PtrAJALcvQA ZFPw/IsSOFGphjjN5vp5TmzXUZ3t7VEUMNw3ItJJcH7Dmw7N1lxq7KWpHAuBU0pqGCEssOFfb4m 2IA== X-Gm-Gg: ASbGncsSDfNnHlXQdwS1fI/8PE5xjx6rngxGvpNzA9XwVzR4bs6O42lW9JcXhPzunTA 7NtXXW0Iz0DcopST7LmevG4uuh7jp2ZjqWv2Dwlr5BE2sD+nq53/C1Py9IKEUDIbBvMNtMqdQmY OspPpn5GP7iWl83k0KH5YenR+1PrU0ChRiggLODDZ4hLBvFypsgumeSjvo+oPPfZBWhTaj/wpKq NIIFmWdQjXuEM4tj079hrtwXKpuB5OklrXN4VCCaycUwloD8dPHsY/SLcC5BO3Gc1rAP2Jb6NlO +L6+CiVte3tL6Ljoq8CDctnlFw== X-Google-Smtp-Source: AGHT+IFhI/DuWBMwUwp/7U+97/ryxpg1fcmXbHUCkr/uxkCv/7+azdrQT3afG4e9lFJ+oiVLBZ0D5A== X-Received: by 2002:a05:6000:1865:b0:382:46ea:113f with SMTP id ffacd0b85a97d-385c6ccaeebmr10639950f8f.10.1732893935089; Fri, 29 Nov 2024 07:25:35 -0800 (PST) From: Phil Dennis-Jordan To: qemu-devel@nongnu.org Cc: agraf@csgraf.de, phil@philjordan.eu, peter.maydell@linaro.org, pbonzini@redhat.com, rad@semihalf.com, quic_llindhol@quicinc.com, stefanha@redhat.com, mst@redhat.com, slp@redhat.com, richard.henderson@linaro.org, eduardo@habkost.net, marcel.apfelbaum@gmail.com, gaosong@loongson.cn, jiaxun.yang@flygoat.com, chenhuacai@kernel.org, kwolf@redhat.com, hreitz@redhat.com, philmd@linaro.org, shorne@gmail.com, palmer@dabbelt.com, alistair.francis@wdc.com, bmeng.cn@gmail.com, liwei1518@gmail.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, jcmvbkbc@gmail.com, marcandre.lureau@redhat.com, berrange@redhat.com, akihiko.odaki@daynix.com, qemu-arm@nongnu.org, qemu-block@nongnu.org, qemu-riscv@nongnu.org, balaton@eik.bme.hu, Alexander Graf Subject: [PATCH v12 12/15] hw/vmapple/cfg: Introduce vmapple cfg region Date: Fri, 29 Nov 2024 16:25:03 +0100 Message-Id: <20241129152506.59390-13-phil@philjordan.eu> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20241129152506.59390-1-phil@philjordan.eu> References: <20241129152506.59390-1-phil@philjordan.eu> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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: neutral client-ip=2a00:1450:4864:20::431; envelope-from=phil@philjordan.eu; helo=mail-wr1-x431.google.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NEUTRAL=0.779 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: 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 @philjordan-eu.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1732894132473019100 From: Alexander Graf Instead of device tree or other more standardized means, VMApple passes platform configuration to the first stage boot loader in a binary encoded format that resides at a dedicated RAM region in physical address space. This patch models this configuration space as a qdev device which we can then map at the fixed location in the address space. That way, we can influence and annotate all configuration fields easily. Signed-off-by: Alexander Graf Signed-off-by: Phil Dennis-Jordan Reviewed-by: Akihiko Odaki Tested-by: Akihiko Odaki --- v3: * Replaced legacy device reset method with Resettable method v4: * Fixed initialisation of default values for properties * Dropped superfluous endianness conversions * Moved most header code to .c, device name #define goes in vmapple.h v5: * Improved error reporting in case of string property buffer overflow. v7: * Changed error messages for overrun of properties with fixed-length strings to be more useful to users than developers. v8: * Consistent parenthesising of macro arguments for better safety. v10: * Slightly tidier error reporting for overlong property values. hw/vmapple/Kconfig | 3 + hw/vmapple/cfg.c | 196 +++++++++++++++++++++++++++++++++++ hw/vmapple/meson.build | 1 + include/hw/vmapple/vmapple.h | 2 + 4 files changed, 202 insertions(+) create mode 100644 hw/vmapple/cfg.c diff --git a/hw/vmapple/Kconfig b/hw/vmapple/Kconfig index 68f88876eb9..8bbeb9a9237 100644 --- a/hw/vmapple/Kconfig +++ b/hw/vmapple/Kconfig @@ -4,3 +4,6 @@ config VMAPPLE_AES config VMAPPLE_BDIF bool =20 +config VMAPPLE_CFG + bool + diff --git a/hw/vmapple/cfg.c b/hw/vmapple/cfg.c new file mode 100644 index 00000000000..d854b49269b --- /dev/null +++ b/hw/vmapple/cfg.c @@ -0,0 +1,196 @@ +/* + * VMApple Configuration Region + * + * Copyright =C2=A9 2023 Amazon.com, Inc. or its affiliates. All Rights Re= served. + * + * SPDX-License-Identifier: GPL-2.0-or-later + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "hw/vmapple/vmapple.h" +#include "hw/sysbus.h" +#include "qemu/log.h" +#include "qemu/module.h" +#include "qapi/error.h" +#include "net/net.h" + +OBJECT_DECLARE_SIMPLE_TYPE(VMAppleCfgState, VMAPPLE_CFG) + +#define VMAPPLE_CFG_SIZE 0x00010000 + +typedef struct VMAppleCfg { + uint32_t version; /* 0x000 */ + uint32_t nr_cpus; /* 0x004 */ + uint32_t unk1; /* 0x008 */ + uint32_t unk2; /* 0x00c */ + uint32_t unk3; /* 0x010 */ + uint32_t unk4; /* 0x014 */ + uint64_t ecid; /* 0x018 */ + uint64_t ram_size; /* 0x020 */ + uint32_t run_installer1; /* 0x028 */ + uint32_t unk5; /* 0x02c */ + uint32_t unk6; /* 0x030 */ + uint32_t run_installer2; /* 0x034 */ + uint32_t rnd; /* 0x038 */ + uint32_t unk7; /* 0x03c */ + MACAddr mac_en0; /* 0x040 */ + uint8_t pad1[2]; + MACAddr mac_en1; /* 0x048 */ + uint8_t pad2[2]; + MACAddr mac_wifi0; /* 0x050 */ + uint8_t pad3[2]; + MACAddr mac_bt0; /* 0x058 */ + uint8_t pad4[2]; + uint8_t reserved[0xa0]; /* 0x060 */ + uint32_t cpu_ids[0x80]; /* 0x100 */ + uint8_t scratch[0x200]; /* 0x180 */ + char serial[32]; /* 0x380 */ + char unk8[32]; /* 0x3a0 */ + char model[32]; /* 0x3c0 */ + uint8_t unk9[32]; /* 0x3e0 */ + uint32_t unk10; /* 0x400 */ + char soc_name[32]; /* 0x404 */ +} VMAppleCfg; + +struct VMAppleCfgState { + SysBusDevice parent_obj; + VMAppleCfg cfg; + + MemoryRegion mem; + char *serial; + char *model; + char *soc_name; +}; + +static void vmapple_cfg_reset(Object *obj, ResetType type) +{ + VMAppleCfgState *s =3D VMAPPLE_CFG(obj); + VMAppleCfg *cfg; + + cfg =3D memory_region_get_ram_ptr(&s->mem); + memset(cfg, 0, VMAPPLE_CFG_SIZE); + *cfg =3D s->cfg; +} + +static bool set_fixlen_property_or_error(char *restrict dst, + const char *restrict src, + size_t dst_size, Error **errp, + const char *property_name) +{ + ERRP_GUARD(); + size_t len; + + len =3D g_strlcpy(dst, src, dst_size); + if (len < dst_size) { /* len does not count nul terminator */ + return true; + } + + error_setg(errp, "Provided value too long for property '%s'", property= _name); + error_append_hint(errp, "length (%zu) exceeds maximum of %zu\n", + len, dst_size - 1); + return false; +} + +#define set_fixlen_property_or_return(dst_array, src, errp, property_name)= \ + do { \ + if (!set_fixlen_property_or_error((dst_array), (src), \ + ARRAY_SIZE(dst_array), \ + (errp), (property_name))) { \ + return; \ + } \ + } while (0) + +static void vmapple_cfg_realize(DeviceState *dev, Error **errp) +{ + VMAppleCfgState *s =3D VMAPPLE_CFG(dev); + uint32_t i; + + if (!s->serial) { + s->serial =3D g_strdup("1234"); + } + if (!s->model) { + s->model =3D g_strdup("VM0001"); + } + if (!s->soc_name) { + s->soc_name =3D g_strdup("Apple M1 (Virtual)"); + } + + set_fixlen_property_or_return(s->cfg.serial, s->serial, errp, "serial"= ); + set_fixlen_property_or_return(s->cfg.model, s->model, errp, "model"); + set_fixlen_property_or_return(s->cfg.soc_name, s->soc_name, errp, "soc= _name"); + set_fixlen_property_or_return(s->cfg.unk8, "D/A", errp, "unk8"); + s->cfg.version =3D 2; + s->cfg.unk1 =3D 1; + s->cfg.unk2 =3D 1; + s->cfg.unk3 =3D 0x20; + s->cfg.unk4 =3D 0; + s->cfg.unk5 =3D 1; + s->cfg.unk6 =3D 1; + s->cfg.unk7 =3D 0; + s->cfg.unk10 =3D 1; + + if (s->cfg.nr_cpus > ARRAY_SIZE(s->cfg.cpu_ids)) { + error_setg(errp, + "Failed to create %u CPUs, vmapple machine supports %zu= max", + s->cfg.nr_cpus, ARRAY_SIZE(s->cfg.cpu_ids)); + return; + } + for (i =3D 0; i < s->cfg.nr_cpus; i++) { + s->cfg.cpu_ids[i] =3D i; + } +} + +static void vmapple_cfg_init(Object *obj) +{ + VMAppleCfgState *s =3D VMAPPLE_CFG(obj); + + memory_region_init_ram(&s->mem, obj, "VMApple Config", VMAPPLE_CFG_SIZ= E, + &error_fatal); + sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mem); +} + +static Property vmapple_cfg_properties[] =3D { + DEFINE_PROP_UINT32("nr-cpus", VMAppleCfgState, cfg.nr_cpus, 1), + DEFINE_PROP_UINT64("ecid", VMAppleCfgState, cfg.ecid, 0), + DEFINE_PROP_UINT64("ram-size", VMAppleCfgState, cfg.ram_size, 0), + DEFINE_PROP_UINT32("run_installer1", VMAppleCfgState, cfg.run_installe= r1, 0), + DEFINE_PROP_UINT32("run_installer2", VMAppleCfgState, cfg.run_installe= r2, 0), + DEFINE_PROP_UINT32("rnd", VMAppleCfgState, cfg.rnd, 0), + DEFINE_PROP_MACADDR("mac-en0", VMAppleCfgState, cfg.mac_en0), + DEFINE_PROP_MACADDR("mac-en1", VMAppleCfgState, cfg.mac_en1), + DEFINE_PROP_MACADDR("mac-wifi0", VMAppleCfgState, cfg.mac_wifi0), + DEFINE_PROP_MACADDR("mac-bt0", VMAppleCfgState, cfg.mac_bt0), + DEFINE_PROP_STRING("serial", VMAppleCfgState, serial), + DEFINE_PROP_STRING("model", VMAppleCfgState, model), + DEFINE_PROP_STRING("soc_name", VMAppleCfgState, soc_name), + DEFINE_PROP_END_OF_LIST(), +}; + +static void vmapple_cfg_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + ResettableClass *rc =3D RESETTABLE_CLASS(klass); + + dc->realize =3D vmapple_cfg_realize; + dc->desc =3D "VMApple Configuration Region"; + device_class_set_props(dc, vmapple_cfg_properties); + rc->phases.hold =3D vmapple_cfg_reset; +} + +static const TypeInfo vmapple_cfg_info =3D { + .name =3D TYPE_VMAPPLE_CFG, + .parent =3D TYPE_SYS_BUS_DEVICE, + .instance_size =3D sizeof(VMAppleCfgState), + .instance_init =3D vmapple_cfg_init, + .class_init =3D vmapple_cfg_class_init, +}; + +static void vmapple_cfg_register_types(void) +{ + type_register_static(&vmapple_cfg_info); +} + +type_init(vmapple_cfg_register_types) diff --git a/hw/vmapple/meson.build b/hw/vmapple/meson.build index d4624713deb..64b78693a31 100644 --- a/hw/vmapple/meson.build +++ b/hw/vmapple/meson.build @@ -1,2 +1,3 @@ system_ss.add(when: 'CONFIG_VMAPPLE_AES', if_true: files('aes.c')) system_ss.add(when: 'CONFIG_VMAPPLE_BDIF', if_true: files('bdif.c')) +system_ss.add(when: 'CONFIG_VMAPPLE_CFG', if_true: files('cfg.c')) diff --git a/include/hw/vmapple/vmapple.h b/include/hw/vmapple/vmapple.h index 9090e9c5ac8..3bba59f5ec7 100644 --- a/include/hw/vmapple/vmapple.h +++ b/include/hw/vmapple/vmapple.h @@ -16,4 +16,6 @@ =20 #define TYPE_VMAPPLE_BDIF "vmapple-bdif" =20 +#define TYPE_VMAPPLE_CFG "vmapple-cfg" + #endif /* HW_VMAPPLE_VMAPPLE_H */ --=20 2.39.5 (Apple Git-154)