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45 lines
1.5 KiB
45 lines
1.5 KiB
2 months ago
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From 9d9cf8de8b2ad8273861a30476a46f34cd34871a Mon Sep 17 00:00:00 2001
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From: Baoquan He <bhe@redhat.com>
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Date: Tue, 14 Nov 2023 23:20:30 +0800
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Subject: [PATCH] kexec_file: add kexec_file flag to support debug printing
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Content-type: text/plain
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This add KEXEC_FILE_DEBUG to kexec_file_flags so that it can be passed
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to kernel when '-d' is added with kexec_file_load interface. With that
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flag enabled, kernel can enable the debugging message printing.
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Signed-off-by: Baoquan He <bhe@redhat.com>
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Signed-off-by: Simon Horman <horms@kernel.org>
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---
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kexec/kexec-syscall.h | 1 +
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kexec/kexec.c | 1 +
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2 files changed, 2 insertions(+)
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diff --git a/kexec/kexec-syscall.h b/kexec/kexec-syscall.h
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index 2559bffb93da..73e52543e1b0 100644
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--- a/kexec/kexec-syscall.h
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+++ b/kexec/kexec-syscall.h
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@@ -119,6 +119,7 @@ static inline long kexec_file_load(int kernel_fd, int initrd_fd,
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#define KEXEC_FILE_UNLOAD 0x00000001
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#define KEXEC_FILE_ON_CRASH 0x00000002
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#define KEXEC_FILE_NO_INITRAMFS 0x00000004
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+#define KEXEC_FILE_DEBUG 0x00000008
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/* These values match the ELF architecture values.
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* Unless there is a good reason that should continue to be the case.
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diff --git a/kexec/kexec.c b/kexec/kexec.c
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index 9d0ec46e5657..222f79e3112e 100644
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--- a/kexec/kexec.c
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+++ b/kexec/kexec.c
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@@ -1477,6 +1477,7 @@ int main(int argc, char *argv[])
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return 0;
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case OPT_DEBUG:
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kexec_debug = 1;
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+ kexec_file_flags |= KEXEC_FILE_DEBUG;
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break;
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case OPT_NOIFDOWN:
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skip_ifdown = 1;
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--
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2.41.0
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