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GET /api/patches/2218883/?format=api
{ "id": 2218883, "url": "http://patchwork.ozlabs.org/api/patches/2218883/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260402001410.3736815-6-rs@ti.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260402001410.3736815-6-rs@ti.com>", "list_archive_url": null, "date": "2026-04-02T00:14:09", "name": "[5/6] efi_memory: backfill EFI_CONVENTIONAL_MEMORY", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "bb367577376c5a82019e821076882fd66919a1db", "submitter": { "id": 88727, "url": "http://patchwork.ozlabs.org/api/people/88727/?format=api", "name": "Randolph Sapp", "email": "rs@ti.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260402001410.3736815-6-rs@ti.com/mbox/", "series": [ { "id": 498412, "url": "http://patchwork.ozlabs.org/api/series/498412/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=498412", "date": "2026-04-02T00:14:04", "name": "various memory related fixups", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498412/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2218883/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2218883/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=ti.com header.i=@ti.com header.a=rsa-sha256\n header.s=selector1 header.b=iglIHacq;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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helo=lewvzet201.ext.ti.com; pr=C", "From": "<rs@ti.com>", "To": "<robertcnelson@gmail.com>, <ayush@beagleboard.org>,\n <Erik.Welsh@octavosystems.com>, <anshuld@ti.com>, <bb@ti.com>,\n <trini@konsulko.com>, <afd@ti.com>, <xypron.glpk@gmx.de>,\n <ilias.apalodimas@linaro.org>", "CC": "<u-boot@lists.denx.de>", "Subject": "[PATCH 5/6] efi_memory: backfill EFI_CONVENTIONAL_MEMORY", "Date": "Wed, 1 Apr 2026 19:14:09 -0500", "Message-ID": "<20260402001410.3736815-6-rs@ti.com>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260402001410.3736815-1-rs@ti.com>", "References": "<20260402001410.3736815-1-rs@ti.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-C2ProcessedOrg": "333ef613-75bf-4e12-a4b1-8e3623f5dcea", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "DS1PEPF00017096:EE_|DS0PR10MB7174:EE_", "X-MS-Office365-Filtering-Correlation-Id": "bcf69ec6-6b10-44bf-0c60-08de904ccbe6", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;\n ARA:13230040|376014|82310400026|1800799024|36860700016|22082099003|18002099003|56012099003;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:198.47.23.195; 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Ip=[198.47.23.195];\n Helo=[lewvzet201.ext.ti.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n DS1PEPF00017096.namprd05.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "DS0PR10MB7174", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "From: Randolph Sapp <rs@ti.com>\n\nBackfill any fragmented EFI_CONVENTIONAL_MEMORY when LMB allocations\nstart to fail. This may be a low memory environment, or maybe LMB is\nrunning up against a tricky reserved region.\n\nSigned-off-by: Randolph Sapp <rs@ti.com>\n---\n lib/efi_loader/efi_memory.c | 35 +++++++++++++++++++++++++++++++++--\n 1 file changed, 33 insertions(+), 2 deletions(-)", "diff": "diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c\nindex 882366a9f8a..f07cc39b157 100644\n--- a/lib/efi_loader/efi_memory.c\n+++ b/lib/efi_loader/efi_memory.c\n@@ -441,6 +441,27 @@ static efi_status_t efi_check_allocated(u64 addr, bool must_be_allocated)\n \treturn EFI_NOT_FOUND;\n }\n \n+/**\n+ * efi_get_conventional_start - find the highest conventional region start\n+ * address with at least the specified number of\n+ * pages\n+ *\n+ * @pages: number of pages required to be in that carveout\n+ * Return: starting address of the give carveout\n+ */\n+static u64 efi_get_conventional_start(u64 pages)\n+{\n+\tstruct efi_mem_list *item;\n+\n+\tlist_for_each_entry(item, &efi_mem, link) {\n+\t\tif (item->desc.type != EFI_CONVENTIONAL_MEMORY)\n+\t\t\tcontinue;\n+\t\tif (item->desc.num_pages >= pages)\n+\t\t\treturn item->desc.physical_start;\n+\t}\n+\treturn 0;\n+}\n+\n /**\n * efi_allocate_pages - allocate memory pages\n *\n@@ -507,10 +528,20 @@ efi_status_t efi_allocate_pages(enum efi_allocate_type type,\n \t/* Reserve that map in our memory maps */\n \tret = efi_update_memory_map(efi_addr, pages, memory_type, true, false);\n \tif (ret != EFI_SUCCESS) {\n-\t\t/* Map would overlap, bail out */\n+\t\t/* Map would overlap, try something else */\n \t\tlmb_free(addr, (u64)pages << EFI_PAGE_SHIFT, flags);\n \t\tunmap_sysmem((void *)(uintptr_t)efi_addr);\n-\t\treturn EFI_OUT_OF_RESOURCES;\n+\n+\t\t/* See if there is any EFI_CONVENTIONAL_MEMORY allocations */\n+\t\tif (type != EFI_ALLOCATE_ADDRESS) {\n+\t\t\t*memory = efi_get_conventional_start(pages);\n+\t\t\tif (*memory != 0)\n+\t\t\t\treturn efi_allocate_pages(EFI_ALLOCATE_ADDRESS,\n+\t\t\t\t\t\t\t memory_type, pages,\n+\t\t\t\t\t\t\t memory);\n+\t\t}\n+\n+\t\treturn EFI_OUT_OF_RESOURCES;\n \t}\n \n \t*memory = efi_addr;\n", "prefixes": [ "5/6" ] }