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{ "id": 2195669, "url": "http://patchwork.ozlabs.org/api/covers/2195669/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/cover/cover.1770825377.git.michal.simek@amd.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": "<cover.1770825377.git.michal.simek@amd.com>", "list_archive_url": null, "date": "2026-02-11T15:56:19", "name": "[v8,0/4] efi_vars: Implement SPI Flash storage for EFI", "submitter": { "id": 84271, "url": "http://patchwork.ozlabs.org/api/people/84271/?format=api", "name": "Michal Simek", "email": "michal.simek@amd.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/cover/cover.1770825377.git.michal.simek@amd.com/mbox/", "series": [ { "id": 491869, "url": "http://patchwork.ozlabs.org/api/series/491869/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=491869", "date": "2026-02-11T15:56:20", "name": "efi_vars: Implement SPI Flash storage for EFI", "version": 8, "mbox": "http://patchwork.ozlabs.org/series/491869/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2195669/comments/", "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=amd.com header.i=@amd.com header.a=rsa-sha256\n header.s=selector1 header.b=yhE3IsqX;\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=satlexmb08.amd.com; pr=C", "From": "Michal Simek <michal.simek@amd.com>", "To": "<u-boot@lists.denx.de>, <git@amd.com>", "CC": "Heinrich Schuchardt <xypron.glpk@gmx.de>, Ilias Apalodimas\n <ilias.apalodimas@linaro.org>, Jan Kiszka <jan.kiszka@siemens.com>, \"Jonathan\n Humphreys\" <j-humphreys@ti.com>, Neil Armstrong <neil.armstrong@linaro.org>,\n Pranav Tilak <pranav.vinaytilak@amd.com>, Shantur Rathore <i@shantur.com>,\n Simon Glass <sjg@chromium.org>, Sughosh Ganu <sughosh.ganu@arm.com>, Tom Rini\n <trini@konsulko.com>, \"Ying-Chun Liu (PaulLiu)\" <paul.liu@linaro.org>", "Subject": "[PATCH v8 0/4] efi_vars: Implement SPI Flash storage for EFI", "Date": "Wed, 11 Feb 2026 16:56:19 +0100", "Message-ID": "<cover.1770825377.git.michal.simek@amd.com>", "X-Mailer": "git-send-email 2.43.0", "MIME-Version": "1.0", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=3006; i=michal.simek@amd.com;\n h=from:subject:message-id; bh=t/wTbpljg1saJkNWfd9gEJqqr+iEKPL5FRkZuPI15rU=;\n b=owGbwMvMwCG2mv3fB7+vgl8ZT6slMWT2LFsZuLVasXuubf+GdLfubdmzJebOvR3O7PkjpOPyv\n gtC0y5Ud5SyMIhxMMiKKbJMZ9JxWPPt2lKx5ZH5MHNYmUCGMHBxCsBElIMYGf6WVfcWmPZ1X3jP\n +PchjyHja+VoQe7K6FqeryorU1VszRn+ittWVdVF7+N8rfX+1qOpjMrXLsYXJS2Jbs5o3rhmksA\n 7ZgA=", "X-Developer-Key": "i=michal.simek@amd.com; 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Ip=[165.204.84.17];\n Helo=[satlexmb08.amd.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n BL02EPF0002992E.namprd02.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "SA1PR12MB6894", "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": "This is updated series based on v3 version sent here\nhttps://lore.kernel.org/all/20231126220836.374956-1-i@shantur.com/\n\nthat's why I am continuing on v4 instead of starting from scratch.\n\nTested on kv260 with saving variables to location where User MTD partition\nis.\nCONFIG_EFI_VARIABLE_SF_STORE=y\nCONFIG_EFI_RT_VOLATILE_STORE=y\nCONFIG_EFI_VARIABLE_SF_OFFSET=0x22a0000\n\nIn Linux:\nroot@som:~# mount | grep efivars\nnone on /sys/firmware/efi/efivars type efivarfs (rw,relatime)\nroot@som:~# printf '\\x07\\x00\\x00\\x00Hello' \\\n | sudo tee /sys/firmware/efi/efivars/TestVar-12345678-1234-1234-1234-123456789abc\nHelloroot@som:~#\nroot@som:~# dd if=/sys/firmware/efi/efivars/VarToFile-b2ac5fc9-92b7-4acd-aeac-11e818c3130c \\\n of=/tmp/vars skip=4 bs=1\n1352+0 records in\n1352+0 records out\n1352 bytes (1.4 kB, 1.3 KiB) copied, 0.380992 s, 3.5 kB/s\nroot@som:~# flashcp /tmp/vars /dev/mtd16\nroot@som:~# reboot\n\nReboot and then in U-Boot:\n\nZynqMP> pri -e\n...\nTestVar:\n 12345678-1234-1234-1234-123456789abc (12345678-1234-1234-1234-123456789abc)\n NV|BS|RT, DataSize = 0x5\n 00000000: 48 65 6c 6c 6f Hello\n...\n\nThanks,\nMichal\n\nChanges in v8:\n- new patch\n- Add missing EFI_VARIABLE_SF_STORE dependency to EFI_VARIABLE_SF_DEVICE_INDEX\n\nChanges in v7:\n- sed -i 's/efi_var_from/efi_var_from_storage/g'\n- sed -i 's/efi_var_from/efi_var_from_storage/g'\n\nChanges in v6:\n- Return EFI_SUCCESS in efi_set_variable_int() when\n CONFIG_EFI_VARIABLE_NO_STORE is enabled\n- sed -i 's/efi_var_read/efi_var_from/g'\n- sed -i 's/efi_var_write/efi_var_to_storage/g'\n- sed -i 's/efi_var_read/efi_var_from/g'\n- sed -i 's/efi_var_write/efi_var_to_storage/g'\n\nChanges in v5:\n- Invert logic in efi_variable.c and avoid #if\n\nChanges in v4:\n- New patch based on review comments from v3\n- Extend Kconfig description\n- Extend commit message and describe efivar missing part\n- use unify methods for reading/writing variable\n\nChanges in v3:\n- Fixed compiler warnings.\n\nChanges in v2:\n- Refactored efi_var_file to move common parts out as requested\n- Changed ifdefs to use CONFIG_IS_DEFINED\n- Fixed typos\n\nMichal Simek (2):\n efi_var: Unify read/write access helper function\n efi_loader: Setup default location for UEFI Variables storing\n\nShantur Rathore (2):\n efi_var_file: refactor to move buffer functions\n efi_vars: Implement SPI Flash store\n\n include/efi_variable.h | 18 +++----\n lib/efi_loader/Kconfig | 38 +++++++++++++-\n lib/efi_loader/Makefile | 3 +-\n lib/efi_loader/efi_var_common.c | 42 +++++++++++++++\n lib/efi_loader/efi_var_file.c | 65 ++---------------------\n lib/efi_loader/efi_var_sf.c | 92 +++++++++++++++++++++++++++++++++\n lib/efi_loader/efi_variable.c | 19 ++++---\n 7 files changed, 198 insertions(+), 79 deletions(-)\n create mode 100644 lib/efi_loader/efi_var_sf.c" }