Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/1.0/patches/2198214/?format=api
{ "id": 2198214, "url": "http://patchwork.ozlabs.org/api/1.0/patches/2198214/?format=api", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.0/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260219144901.3317747-10-ruslichenko.r@gmail.com>", "date": "2026-02-19T14:48:56", "name": "[v2,28/33] system/memory: add QOM aliases for fdt support", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "9aecbae3d3a17eceb8c0c73332afa59da1bd5e49", "submitter": { "id": 92275, "url": "http://patchwork.ozlabs.org/api/1.0/people/92275/?format=api", "name": "Ruslan Ruslichenko", "email": "ruslichenko.r@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260219144901.3317747-10-ruslichenko.r@gmail.com/mbox/", "series": [ { "id": 492690, "url": "http://patchwork.ozlabs.org/api/1.0/series/492690/?format=api", "date": "2026-02-19T14:33:04", "name": "hw/arm: Introduce generic FDT-driven machine", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/492690/mbox/" } ], "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2198214/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20230601 header.b=amECIGVX;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fGxCQ5BbXz1xpl\n\tfor <incoming@patchwork.ozlabs.org>; Fri, 20 Feb 2026 01:51:14 +1100 (AEDT)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1vt5MJ-00041d-UR; Thu, 19 Feb 2026 09:50:27 -0500", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <ruslichenko.r@gmail.com>)\n id 1vt5Lw-0003lm-GK\n for qemu-devel@nongnu.org; Thu, 19 Feb 2026 09:50:13 -0500", "from mail-wr1-x432.google.com ([2a00:1450:4864:20::432])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from <ruslichenko.r@gmail.com>)\n id 1vt5Lp-000852-Dc\n for qemu-devel@nongnu.org; Thu, 19 Feb 2026 09:50:00 -0500", "by mail-wr1-x432.google.com with SMTP id\n ffacd0b85a97d-4362197d174so697715f8f.3\n for <qemu-devel@nongnu.org>; Thu, 19 Feb 2026 06:49:54 -0800 (PST)", "from thinkpad-t470s.. (93-143-129-182.adsl.net.t-com.hr.\n [93.143.129.182]) by smtp.googlemail.com with ESMTPSA id\n ffacd0b85a97d-43796ac8d82sm50163087f8f.31.2026.02.19.06.49.51\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Thu, 19 Feb 2026 06:49:52 -0800 (PST)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=gmail.com; s=20230601; t=1771512593; x=1772117393; darn=nongnu.org;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:from:to:cc:subject:date\n :message-id:reply-to;\n bh=1qjrmCbZ4irjeMgFjgDLjHWP5I2nb6lT5hUfv6l7aZI=;\n b=amECIGVXw59IVC1MHNWZlzx19fhU+TIIoNvRVSP5OfsWJ0F/RTIzr6MiW52S6ZVvC0\n GH0wvnyeD9Ql44sequU7BDbFgdphyxrj8tz1ypsTIJ3qoQsh8hWHNuS5oBQ7Pah/ioXi\n jbvR0lNZnBxLR6y49XDVI0J9XXIFghJPPwxy6jXqTuB0T1thr5UZPyvMlatCQoG2wrZo\n W85Hrilh4UHFn/tbKLXhq61JA4bSHOqS0i1H8GbuUm/mVt+jafQQUmr3DVANPoRE9Bz4\n VvSwChVaU0Bb6w+W8ld8IWJ2HeJqwacsQuOxJ8Deuid8esTtAnex1QYMbIGi48AY3uTn\n epvQ==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20230601; t=1771512593; x=1772117393;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from\n :to:cc:subject:date:message-id:reply-to;\n bh=1qjrmCbZ4irjeMgFjgDLjHWP5I2nb6lT5hUfv6l7aZI=;\n b=ISnTwMWvuCoFkfRbFKdk4v7KJezcGzhBMsmrjGMbfHFCuddxpvKSFQ3ifhohnW0T2m\n MJs/Cj4vJ1nPlfUPnnQ0hg1MRbLOoIekp5HwvD7EzPn4pvWOHPYmsHlMxSOTXwd1k19/\n xIPkPCfJuSACZkpbYW+jD+6T1v1T5XwITdbdijhu4G3wwGbByZJ/SMlba+p2YIUOB7av\n ORXfQbA8L83nLOmuM0lk1r9bPUBtV+9n9VxdZ/cO5Gl4SZNKsQeh72W6/VRzZZqcabjG\n nuSMd1BuPJ676pmoLP3E8xEarXimg3ajYqI9Vj4AJN/2lhZWTzqDNwZS1RVUJF587D6S\n /N4w==", "X-Gm-Message-State": "AOJu0YzR+2hZS4eOvKAqvMahYIVfzNc+N9n08RYmUPBoHiAXZ0QtAodC\n RTd2FGrNC7X2Pfnb+hGVLPYv80bZoCAo6JAEmPUDaZWRDW3s9gMGu8AEmhjVQGID", "X-Gm-Gg": "AZuq6aK8MEPnaA6zZJXd+ZhU+yXdchpKilXMU6A/d09v+kJibNOmHfqlHDWlkRjJTvG\n TpLSDuhBNcgbt3NmNlPYaI0E6ipTVacvYGj3ml+EfXDKKWEP//tfw0Gk2F0vtxKDeXY4E6rAVdg\n WPlylRoq7B15wcE2h9O7zyi0c86CgadGddn/tR0GrVBhSL6bccbVX/IvHK+pJ2fVLEbkhzVHa4i\n VYjSdJPop1Z1prQCZBg/0/PmHUj0DFwKAcBT9ONcdggsepUJ0STJ5np5seR7Mhjd35k5WgEYpfP\n p/Euu1jzWoR7qezu4o7imjWik8s7VKEgZ+g9eDqVS1CeJFn2xITVqQaw5Cv380ByAGj13O6vviG\n O0oz5+rgzo2zRbjuT5kkiEZlvmap9/VfnYbpy0DMX2IDSY4//gnOzIbvdc9P2nPsCc6cgQhfxot\n 70/gZA8Uqjt1+P3tnpR/K87AOv95ba8JkyR0AkBVeHY07Wbciq/60R3y3HyQJd0E6PEl2/", "X-Received": "by 2002:a05:6000:184e:b0:436:1a4b:de36 with SMTP id\n ffacd0b85a97d-43958e0314amr9545077f8f.22.1771512592729;\n Thu, 19 Feb 2026 06:49:52 -0800 (PST)", "From": "Ruslan Ruslichenko <ruslichenko.r@gmail.com>", "To": "qemu-devel@nongnu.org", "Cc": "qemu-arm@nongnu.org, alex.bennee@linaro.org, peter.maydell@linaro.org,\n artem_mygaiev@epam.com, volodymyr_babchuk@epam.com,\n takahiro.nakata.wr@renesas.com,\n \"Edgar E . Iglesias\" <edgar.iglesias@gmail.com>, Ruslan_Ruslichenko@epam.com,\n balaton@eik.bme.hu,\n =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <philmd@linaro.org>", "Subject": "[PATCH v2 28/33] system/memory: add QOM aliases for fdt support", "Date": "Thu, 19 Feb 2026 15:48:56 +0100", "Message-ID": "<20260219144901.3317747-10-ruslichenko.r@gmail.com>", "X-Mailer": "git-send-email 2.43.0", "In-Reply-To": "<20260219144901.3317747-1-ruslichenko.r@gmail.com>", "References": "<20260219143332.3316679-1-ruslichenko.r@gmail.com>\n <20260219144901.3317747-1-ruslichenko.r@gmail.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=2a00:1450:4864:20::432;\n envelope-from=ruslichenko.r@gmail.com; helo=mail-wr1-x432.google.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n 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 <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "From: Ruslan Ruslichenko <Ruslan_Ruslichenko@epam.com>\n\nThe patch registers FDT compatibility handlers and\nQOM aliases of memory subsystem, so that memory\nregions can be created from a device tree model.\n\nThe alias 'qemu:system-memory' could be used to attach\nsubregion to root address space.\nThe system memory can also be attached to another\ncontainer with other priority, which may be used\nfor implementing secure memory structures.\n\nAlso 'qemu-memory-region' types can be used to create\nnew memory regions.\n\nSigned-off-by: Ruslan Ruslichenko <Ruslan_Ruslichenko@epam.com>\n---\n system/memory.c | 99 +++++++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 99 insertions(+)", "diff": "diff --git a/system/memory.c b/system/memory.c\nindex 81e6846c60..66b5f6a484 100644\n--- a/system/memory.c\n+++ b/system/memory.c\n@@ -4120,3 +4120,102 @@ static void memory_register_types(void)\n }\n \n type_init(memory_register_types)\n+\n+static int sysmem_fdt_init(char *node_path, FDTMachineInfo *fdti,\n+ void *priv)\n+{\n+ int priority = 0;\n+ uint32_t container_phandle;\n+ MemoryRegion *container;\n+ char container_node_path[DT_PATH_LENGTH];\n+ Error *errp = NULL;\n+\n+ fdt_init_set_opaque(fdti, node_path, OBJECT(get_system_memory()));\n+\n+ /* allow to set system_memory region as subregion */\n+ container_phandle = qemu_fdt_getprop_cell(fdti->fdt, node_path,\n+ \"container\",\n+ 0, &errp);\n+ if (!errp) {\n+ /*\n+ * TBD: move reg_info work to fdt_generic_util.c\n+ */\n+ int sc = 0;\n+ sc = qemu_fdt_getprop_cell(fdti->fdt, node_path, \"#address-cells\",\n+ 0, &errp);\n+ if (!errp && sc) {\n+ error_report(\"can't change sysmem address\");\n+ return -1;\n+ }\n+\n+ if (errp) {\n+ error_free(errp); errp = NULL;\n+ }\n+\n+ sc = qemu_fdt_getprop_cell(fdti->fdt, node_path,\n+ \"#size-cells\", 0, &errp);\n+ if (!errp && sc) {\n+ error_report(\"can't change sysmem size\");\n+ return -1;\n+ }\n+\n+ error_free(errp); errp = NULL;\n+ /* Check for custom \"#priority-cells\" extension */\n+ sc = qemu_fdt_getprop_cell(fdti->fdt, node_path,\n+ \"#priority-cells\", 0, &errp);\n+ if (errp) {\n+ /* priotity is optional */\n+ priority = 0;\n+ error_free(errp); errp = NULL;\n+ } else if (sc) {\n+ priority = qemu_fdt_getprop_cell(fdti->fdt, node_path,\n+ \"reg\", 0, &errp);\n+ if (errp) {\n+ error_report(\"failed to read priority from reg\");\n+ error_free(errp);\n+ return -1;\n+ }\n+ }\n+\n+ if (qemu_devtree_get_node_by_phandle(fdti->fdt, container_node_path,\n+ container_phandle)) {\n+ error_report(\"failed to get contaier node\");\n+ return -1;\n+ }\n+\n+ while (!fdt_init_has_opaque(fdti, container_node_path)) {\n+ fdt_init_yield(fdti);\n+ }\n+\n+ container = MEMORY_REGION(fdt_init_get_opaque(fdti,\n+ container_node_path));\n+\n+ memory_region_add_subregion_overlap(container, 0,\n+ get_system_memory(), priority);\n+ } else {\n+ /* container is optional property */\n+ error_free(errp);\n+ errp = NULL;\n+ }\n+\n+ return 0;\n+}\n+\n+\n+fdt_register_compatibility(sysmem_fdt_init, \"compatible:qemu:system-memory\");\n+\n+static const TypeInfo fdt_qom_aliases[] = {\n+ { .name = \"qemu-memory-region\", .parent = \"memory-region\" },\n+ { .name = \"simple-bus\", .parent = \"memory-region\" },\n+};\n+\n+static void fdt_memory_types(void)\n+{\n+ int i;\n+\n+ for (i = 0; i < ARRAY_SIZE(fdt_qom_aliases); ++i) {\n+ type_register_static(&fdt_qom_aliases[i]);\n+ }\n+}\n+\n+type_init(fdt_memory_types)\n", "prefixes": [ "v2", "28/33" ] }