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From: Sourabh Jain <sourabhjain@linux.ibm.com>
To: linuxppc-dev@ozlabs.org, mpe@ellerman.id.au
Cc: eric.devolder@oracle.com, bhe@redhat.com,
	mahesh@linux.vnet.ibm.com, kexec@lists.infradead.org,
	ldufour@linux.ibm.com, hbathini@linux.ibm.com
Subject: [RFC v4 PATCH 3/5] powrepc/crash hp: update kimage_arch struct
Date: Mon, 11 Apr 2022 14:13:55 +0530	[thread overview]
Message-ID: <20220411084357.157308-4-sourabhjain@linux.ibm.com> (raw)
In-Reply-To: <20220411084357.157308-1-sourabhjain@linux.ibm.com>

Two new members fdt_index and fdt_index_valid are added in kimage_arch
struct to track the FDT kexec segment. These new members of kimage_arch
struct will help the crash hotplug handler to easily access the FDT
segment from the kexec segment array. Otherwise, we have to loop through
all kexec segments to find the FDT segments.

Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
---
 arch/powerpc/include/asm/kexec.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index e1288826e22e..19c2cab6a880 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -104,6 +104,8 @@ extern const struct kexec_file_ops kexec_elf64_ops;
 struct kimage_arch {
 	struct crash_mem *exclude_ranges;
 
+	int fdt_index;
+	bool fdt_index_valid;
 	unsigned long backup_start;
 	void *backup_buf;
 	void *fdt;
-- 
2.35.1


WARNING: multiple messages have this Message-ID (diff)
From: Sourabh Jain <sourabhjain@linux.ibm.com>
To: kexec@lists.infradead.org
Subject: [RFC v4 PATCH 3/5] powrepc/crash hp: update kimage_arch struct
Date: Mon, 11 Apr 2022 14:13:55 +0530	[thread overview]
Message-ID: <20220411084357.157308-4-sourabhjain@linux.ibm.com> (raw)
In-Reply-To: <20220411084357.157308-1-sourabhjain@linux.ibm.com>

Two new members fdt_index and fdt_index_valid are added in kimage_arch
struct to track the FDT kexec segment. These new members of kimage_arch
struct will help the crash hotplug handler to easily access the FDT
segment from the kexec segment array. Otherwise, we have to loop through
all kexec segments to find the FDT segments.

Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
---
 arch/powerpc/include/asm/kexec.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index e1288826e22e..19c2cab6a880 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -104,6 +104,8 @@ extern const struct kexec_file_ops kexec_elf64_ops;
 struct kimage_arch {
 	struct crash_mem *exclude_ranges;
 
+	int fdt_index;
+	bool fdt_index_valid;
 	unsigned long backup_start;
 	void *backup_buf;
 	void *fdt;
-- 
2.35.1



  parent reply	other threads:[~2022-04-11  8:45 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-11  8:43 [RFC v4 PATCH 0/5] In kernel handling of CPU hotplug events for crash kernel Sourabh Jain
2022-04-11  8:43 ` Sourabh Jain
2022-04-11  8:43 ` [RFC v4 PATCH 1/5] powerpc/kexec: make update_cpus_node non-static Sourabh Jain
2022-04-11  8:43   ` Sourabh Jain
2022-04-11  8:43 ` [RFC v4 PATCH 2/5] powerpc/crash hp: introduce a new config option CRASH_HOTPLUG Sourabh Jain
2022-04-11  8:43   ` Sourabh Jain
2022-04-14 16:40   ` Laurent Dufour
2022-04-14 16:40     ` Laurent Dufour
2022-04-19  8:20     ` Sourabh Jain
2022-04-19  8:20       ` Sourabh Jain
2022-04-21 11:34   ` Michael Ellerman
2022-04-21 11:34     ` Michael Ellerman
2022-04-21 15:29     ` Eric DeVolder
2022-04-21 15:29       ` Eric DeVolder
2022-04-22  4:22       ` Michael Ellerman
2022-04-22  4:22         ` Michael Ellerman
2022-04-26  4:10       ` Sourabh Jain
2022-04-26  4:10         ` Sourabh Jain
2022-04-26  3:47     ` Sourabh Jain
2022-04-26  3:47       ` Sourabh Jain
2022-04-11  8:43 ` Sourabh Jain [this message]
2022-04-11  8:43   ` [RFC v4 PATCH 3/5] powrepc/crash hp: update kimage_arch struct Sourabh Jain
2022-04-14 16:35   ` Laurent Dufour
2022-04-14 16:35     ` Laurent Dufour
2022-04-19  8:21     ` Sourabh Jain
2022-04-19  8:21       ` Sourabh Jain
2022-04-11  8:43 ` [RFC v4 PATCH 4/5] powerpc/crash hp: add crash hotplug support for kexec_file_load Sourabh Jain
2022-04-11  8:43   ` Sourabh Jain
2022-04-14 16:32   ` Laurent Dufour
2022-04-14 16:32     ` Laurent Dufour
2022-04-19  8:31     ` Sourabh Jain
2022-04-19  8:31       ` Sourabh Jain
2022-04-21 15:33       ` Eric DeVolder
2022-04-21 15:33         ` Eric DeVolder
2022-04-11  8:43 ` [RFC v4 PATCH 5/5] powerpc/crash hp: add crash hotplug support for kexec_load Sourabh Jain
2022-04-11  8:43   ` Sourabh Jain
2022-04-14 16:39   ` Laurent Dufour
2022-04-14 16:39     ` Laurent Dufour

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