[PATCH v4 0/2] kexec: Fix kexec_file_load for llvm16

[Ricardo Ribalda <ribalda@chromium.org>]

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

To: Eric Biederman <ebiederm@xmission.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Philipp Rudo <prudo@redhat.com>
Cc: kexec@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: Ross Zwisler <zwisler@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.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@chromium.org>