linux-kernel - [PATCH v4 0/2] kexec: Fix kexec_file

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Message-Id: <20230321-kexec_clang16-v4-0-1340518f98e9@chromium.org>
Date:   Mon, 27 Mar 2023 17:06:52 +0200
From:   Ricardo Ribalda <ribalda@...omium.org>
To:     Eric Biederman <ebiederm@...ssion.com>
Cc:     linux-kernel@...r.kernel.org, Baoquan He <bhe@...hat.com>,
        stable@...r.kernel.org, Ross Zwisler <zwisler@...gle.com>,
        Ricardo Ribalda <ribalda@...omium.org>,
        Philipp Rudo <prudo@...hat.com>,
        Steven Rostedt <rostedt@...dmis.org>, kexec@...ts.infradead.org
Subject: [PATCH v4 0/2] kexec: Fix kexec_file_load for llvm16

When upreving llvm I realised that kexec stopped working on my test
platform. This patch fixes it.

To: Eric Biederman <ebiederm@...ssion.com>
Cc: Baoquan He <bhe@...hat.com>
Cc: Philipp Rudo <prudo@...hat.com>
Cc: kexec@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Cc: Ross Zwisler <zwisler@...gle.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>

---
Changes in v4:
- Add Cc: stable
- Add linker script for x86
- Add a warning when the kernel image has overlapping sections.
- Link to v3: https://lore.kernel.org/r/20230321-kexec_clang16-v3-0-5f016c8d0e87@chromium.org

Changes in v3:
- Fix initial value. Thanks Ross!
- Link to v2: https://lore.kernel.org/r/20230321-kexec_clang16-v2-0-d10e5d517869@chromium.org

Changes in v2:
- Fix if condition. Thanks Steven!.
- Update Philipp email. Thanks Baoquan.
- Link to v1: https://lore.kernel.org/r/20230321-kexec_clang16-v1-0-a768fc2c7c4d@chromium.org

---
Ricardo Ribalda (2):
      kexec: Support purgatories with .text.hot sections
      x86/purgatory: Add linker script

 arch/x86/purgatory/.gitignore        |  2 ++
 arch/x86/purgatory/Makefile          | 20 +++++++++----
 arch/x86/purgatory/kexec-purgatory.S |  2 +-
 arch/x86/purgatory/purgatory.lds.S   | 57 ++++++++++++++++++++++++++++++++++++
 kernel/kexec_file.c                  | 13 +++++++-
 5 files changed, 86 insertions(+), 8 deletions(-)
---
base-commit: 17214b70a159c6547df9ae204a6275d983146f6b
change-id: 20230321-kexec_clang16-4510c23d129c

Best regards,
-- 
Ricardo Ribalda <ribalda@...omium.org>