44 lines
1.5 KiB
Diff
44 lines
1.5 KiB
Diff
From patchwork Tue Nov 21 12:24:32 2017
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Content-Type: text/plain; charset="utf-8"
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MIME-Version: 1.0
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Content-Transfer-Encoding: 7bit
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Subject: [U-Boot] efi_loader: initialise partition_signature memory
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X-Patchwork-Submitter: Jonathan Gray <jsg@jsg.id.au>
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X-Patchwork-Id: 839994
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Message-Id: <20171121122432.88805-1-jsg@jsg.id.au>
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To: u-boot@lists.denx.de
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Cc: agraf@suse.de, kettenis@openbsd.org
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Date: Tue, 21 Nov 2017 23:24:32 +1100
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From: Jonathan Gray <jsg@jsg.id.au>
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List-Id: U-Boot discussion <u-boot.lists.denx.de>
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Zero partition_signature in the efi_device_path_hard_drive_path
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structure when signature_type is zero.
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This is required so that efi_dp_match() will work as expected
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when doing memcmp() comparisons.
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Corrects a problem where the loaded image protocol would not return a
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device path with MEDIA_DEVICE causing the OpenBSD bootloader to fail
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on rpi_3 and other targets.
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Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
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---
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lib/efi_loader/efi_device_path.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c
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index f6e368e029..8045532a29 100644
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--- a/lib/efi_loader/efi_device_path.c
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+++ b/lib/efi_loader/efi_device_path.c
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@@ -431,6 +431,9 @@ static void *dp_part_fill(void *buf, struct blk_desc *desc, int part)
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if (hddp->signature_type != 0)
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memcpy(hddp->partition_signature, &desc->guid_sig,
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sizeof(hddp->partition_signature));
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+ else
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+ memset(hddp->partition_signature, 0,
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+ sizeof(hddp->partition_signature));
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buf = &hddp[1];
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}
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