From patchwork Wed Jun 14 22:57:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 13280531 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B5658EB64D9 for ; Wed, 14 Jun 2023 22:58:42 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q9ZR3-0001Oo-Uj; Wed, 14 Jun 2023 18:57:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1q9ZQz-0000r7-7b; Wed, 14 Jun 2023 18:57:49 -0400 Received: from smtp-fw-6001.amazon.com ([52.95.48.154]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1q9ZQv-0000yb-JB; Wed, 14 Jun 2023 18:57:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1686783465; x=1718319465; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=cY61xU6sPwTCRbsTkC9LE+3zLFMDMmVYdUcCr5uXDVA=; b=H8uJxLZtpt35xKNH1xFRWuC1Baws2A8HAMXGux6LubYpCtzfW27kT5oj qkfv6QG04DOsWRT6WJSI4RCrGcc5oCVC+vj4MZJuyE5HRPTTauG1T9Gil jJw8xGMSsFmBcqBC0hwBGb0iU9600hG9+LNkIAwpa1JyL9fpqkzaf2uYh 4=; X-IronPort-AV: E=Sophos;i="6.00,243,1681171200"; d="scan'208";a="341143602" Received: from iad12-co-svc-p1-lb1-vlan2.amazon.com (HELO email-inbound-relay-iad-1a-m6i4x-bbc6e425.us-east-1.amazon.com) ([10.43.8.2]) by smtp-border-fw-6001.iad6.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jun 2023 22:57:42 +0000 Received: from EX19MTAUWB002.ant.amazon.com (iad12-ws-svc-p26-lb9-vlan3.iad.amazon.com [10.40.163.38]) by email-inbound-relay-iad-1a-m6i4x-bbc6e425.us-east-1.amazon.com (Postfix) with ESMTPS id E459080596; Wed, 14 Jun 2023 22:57:38 +0000 (UTC) Received: from EX19D020UWC004.ant.amazon.com (10.13.138.149) by EX19MTAUWB002.ant.amazon.com (10.250.64.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Wed, 14 Jun 2023 22:57:38 +0000 Received: from dev-dsk-graf-1a-5ce218e4.eu-west-1.amazon.com (10.253.83.51) by EX19D020UWC004.ant.amazon.com (10.13.138.149) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Wed, 14 Jun 2023 22:57:36 +0000 From: Alexander Graf To: CC: , , Cameron Esfahani , Stefan Hajnoczi , "Michael S. Tsirkin" , Kevin Wolf , Hanna Reitz , Marcel Apfelbaum , "Paolo Bonzini" , Peter Maydell Subject: [PATCH 10/12] hw/vmapple/cfg: Introduce vmapple cfg region Date: Wed, 14 Jun 2023 22:57:32 +0000 Message-ID: <20230614225734.806-1-graf@amazon.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230614224038.86148-1-graf> References: <20230614224038.86148-1-graf> MIME-Version: 1.0 X-Originating-IP: [10.253.83.51] X-ClientProxiedBy: EX19D039UWB004.ant.amazon.com (10.13.138.57) To EX19D020UWC004.ant.amazon.com (10.13.138.149) Precedence: Bulk Received-SPF: pass client-ip=52.95.48.154; envelope-from=prvs=52269c73c=graf@amazon.de; helo=smtp-fw-6001.amazon.com X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org 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 --- hw/vmapple/Kconfig | 3 ++ hw/vmapple/cfg.c | 105 +++++++++++++++++++++++++++++++++++++++ hw/vmapple/meson.build | 1 + include/hw/vmapple/cfg.h | 68 +++++++++++++++++++++++++ 4 files changed, 177 insertions(+) create mode 100644 hw/vmapple/cfg.c create mode 100644 include/hw/vmapple/cfg.h diff --git a/hw/vmapple/Kconfig b/hw/vmapple/Kconfig index 388a2bc60c..542426a740 100644 --- a/hw/vmapple/Kconfig +++ b/hw/vmapple/Kconfig @@ -3,3 +3,6 @@ config VMAPPLE_AES config VMAPPLE_BDIF bool + +config VMAPPLE_CFG + bool diff --git a/hw/vmapple/cfg.c b/hw/vmapple/cfg.c new file mode 100644 index 0000000000..d48e3c3afa --- /dev/null +++ b/hw/vmapple/cfg.c @@ -0,0 +1,105 @@ +/* + * VMApple Configuration Region + * + * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "hw/vmapple/cfg.h" +#include "qemu/log.h" +#include "qemu/module.h" +#include "qapi/error.h" + +static void vmapple_cfg_reset(DeviceState *dev) +{ + VMAppleCfgState *s = VMAPPLE_CFG(dev); + VMAppleCfg *cfg; + + cfg = memory_region_get_ram_ptr(&s->mem); + memset((void *)cfg, 0, VMAPPLE_CFG_SIZE); + *cfg = s->cfg; +} + +static void vmapple_cfg_realize(DeviceState *dev, Error **errp) +{ + VMAppleCfgState *s = VMAPPLE_CFG(dev); + uint32_t i; + + strncpy(s->cfg.serial, s->serial, sizeof(s->cfg.serial)); + strncpy(s->cfg.model, s->model, sizeof(s->cfg.model)); + strncpy(s->cfg.soc_name, s->soc_name, sizeof(s->cfg.soc_name)); + strncpy(s->cfg.unk8, "D/A", sizeof(s->cfg.soc_name)); + s->cfg.ecid = cpu_to_be64(s->cfg.ecid); + s->cfg.version = 2; + s->cfg.unk1 = 1; + s->cfg.unk2 = 1; + s->cfg.unk3 = 0x20; + s->cfg.unk4 = 0; + s->cfg.unk5 = 1; + s->cfg.unk6 = 1; + s->cfg.unk7 = 0; + s->cfg.unk10 = 1; + + g_assert(s->cfg.nr_cpus < ARRAY_SIZE(s->cfg.cpu_ids)); + for (i = 0; i < s->cfg.nr_cpus; i++) { + s->cfg.cpu_ids[i] = i; + } +} + +static void vmapple_cfg_init(Object *obj) +{ + VMAppleCfgState *s = VMAPPLE_CFG(obj); + + memory_region_init_ram(&s->mem, obj, "VMApple Config", VMAPPLE_CFG_SIZE, + &error_fatal); + sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mem); + + s->serial = (char *)"1234"; + s->model = (char *)"VM0001"; + s->soc_name = (char *)"Apple M1 (Virtual)"; +} + +static Property vmapple_cfg_properties[] = { + 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_installer1, 0), + DEFINE_PROP_UINT32("run_installer2", VMAppleCfgState, cfg.run_installer2, 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 = DEVICE_CLASS(klass); + + dc->realize = vmapple_cfg_realize; + dc->desc = "VMApple Configuration Region"; + device_class_set_props(dc, vmapple_cfg_properties); + dc->reset = vmapple_cfg_reset; +} + +static const TypeInfo vmapple_cfg_info = { + .name = TYPE_VMAPPLE_CFG, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(VMAppleCfgState), + .instance_init = vmapple_cfg_init, + .class_init = 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 f26ae602eb..325c655edf 100644 --- a/hw/vmapple/meson.build +++ b/hw/vmapple/meson.build @@ -1,2 +1,3 @@ softmmu_ss.add(when: 'CONFIG_VMAPPLE_AES', if_true: files('aes.c')) softmmu_ss.add(when: 'CONFIG_VMAPPLE_BDIF', if_true: files('bdif.c')) +softmmu_ss.add(when: 'CONFIG_VMAPPLE_CFG', if_true: files('cfg.c')) diff --git a/include/hw/vmapple/cfg.h b/include/hw/vmapple/cfg.h new file mode 100644 index 0000000000..3337064e44 --- /dev/null +++ b/include/hw/vmapple/cfg.h @@ -0,0 +1,68 @@ +/* + * VMApple Configuration Region + * + * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#ifndef HW_VMAPPLE_CFG_H +#define HW_VMAPPLE_CFG_H + +#include "hw/sysbus.h" +#include "qom/object.h" +#include "net/net.h" + +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; + +#define TYPE_VMAPPLE_CFG "vmapple-cfg" +OBJECT_DECLARE_SIMPLE_TYPE(VMAppleCfgState, VMAPPLE_CFG) + +struct VMAppleCfgState { + /* */ + SysBusDevice parent_obj; + VMAppleCfg cfg; + + /* */ + MemoryRegion mem; + char *serial; + char *model; + char *soc_name; +}; + +#define VMAPPLE_CFG_SIZE 0x00010000 + +#endif /* HW_VMAPPLE_CFG_H */