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[87.9.100.184]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48722c6b105sm332432465e9.1.2026.03.28.10.16.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Mar 2026 10:16:57 -0700 (PDT) From: Dario Binacchi To: u-boot@lists.denx.de Cc: linux-amarula@amarulasolutions.com, Dario Binacchi , Heinrich Schuchardt , Ilias Apalodimas , Javier Martinez Canillas , Patrick Delaunay , Simon Glass , Tom Rini , =?utf-8?q?Vi?= =?utf-8?q?ncent_Stehl=C3=A9?= Subject: [PATCH 1/4] lib: uuid: add partition type GUID for extended bootloader Date: Sat, 28 Mar 2026 18:15:14 +0100 Message-ID: <20260328171624.2377527-2-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260328171624.2377527-1-dario.binacchi@amarulasolutions.com> References: <20260328171624.2377527-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Original-Sender: dario.binacchi@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b="ZaB/0shF"; spf=pass (google.com: domain of dario.binacchi@amarulasolutions.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=dario.binacchi@amarulasolutions.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com; dara=neutral header.i=@amarulasolutions.com Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , The Extended Boot Loader Partition (XBOOTLDR) is a standard defined by the Discoverable Partitions Specification (DPS) to host boot loader resources outside of the EFI System Partition. Defining this GUID (bc13c2ff-59e6-4262-a352-b275fd6f7172) allows U-Boot to correctly identify and label these partitions using the "xbootldr" shorthand. Signed-off-by: Dario Binacchi --- doc/README.gpt | 2 ++ include/part_efi.h | 3 +++ lib/uuid.c | 1 + 3 files changed, 6 insertions(+) diff --git a/doc/README.gpt b/doc/README.gpt index 386ac2e0fc8f..a6e1fd7ce8d4 100644 --- a/doc/README.gpt +++ b/doc/README.gpt @@ -286,6 +286,8 @@ Some strings can be also used at the place of known GUID : (E6D6D379-F507-44C2-A23C-238F2A3DF928) "u-boot-env" = PARTITION_U_BOOT_ENVIRONMENT (3DE21764-95BD-54BD-A5C3-4ABE786F38A8) + "xbootldr" = PARTITION_XBOOTLDR + (BC13C2FF-59E6-4262-A352-B275FD6F7172) "uuid_disk=...;name=u-boot,size=60MiB,uuid=...; name=kernel,size=60MiB,uuid=...,type=linux;" diff --git a/include/part_efi.h b/include/part_efi.h index fb402df6f13e..afb21569c932 100644 --- a/include/part_efi.h +++ b/include/part_efi.h @@ -59,6 +59,9 @@ #define PARTITION_U_BOOT_ENVIRONMENT \ EFI_GUID( 0x3de21764, 0x95bd, 0x54bd, \ 0xa5, 0xc3, 0x4a, 0xbe, 0x78, 0x6f, 0x38, 0xa8) +#define PARTITION_XBOOTLDR \ + EFI_GUID( 0xbc13c2ff, 0x59e6, 0x4262, \ + 0xa3, 0x52, 0xb2, 0x75, 0xfd, 0x6f, 0x71, 0x72) /* Special ChromiumOS things */ #define PARTITION_CROS_KERNEL \ diff --git a/lib/uuid.c b/lib/uuid.c index 0a166320e077..cf5f8be48a32 100644 --- a/lib/uuid.c +++ b/lib/uuid.c @@ -86,6 +86,7 @@ static const struct { {"swap", NULL, PARTITION_LINUX_SWAP_GUID}, {"lvm", NULL, PARTITION_LINUX_LVM_GUID}, {"u-boot-env", NULL, PARTITION_U_BOOT_ENVIRONMENT}, + {"xbootldr", NULL, PARTITION_XBOOTLDR}, {"cros-kern", NULL, PARTITION_CROS_KERNEL}, {"cros-root", NULL, PARTITION_CROS_ROOT}, {"cros-fw", NULL, PARTITION_CROS_FIRMWARE},