[v3] x86/boot: provide better diagnostics in AP boot failure

[PATCH v3 0/3] x86/boot: provide better diagnostics in AP boot failure

Roger Pau Monne posted 3 patches 8 months, 3 weeks ago

Diff against v1 v2
Download series mbox

Patches applied successfully (tree, apply log)
git fetch https://gitlab.com/xen-project/patchew/xen tags/patchew/20250523082135.18088-1-roger.pau@citrix.com

xen/arch/x86/include/asm/processor.h |  1 +
xen/arch/x86/smpboot.c               | 15 ++++++-
xen/arch/x86/traps.c                 | 63 ++++++++++++++++++----------
3 files changed, 54 insertions(+), 25 deletions(-)

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[PATCH v3 0/3] x86/boot: provide better diagnostics in AP boot failure

Posted by Roger Pau Monne 8 months, 3 weeks ago

Hello,

This series attempts to improve AP boot failure diagnosis by improving
the printed failure messages (patch 1) and detecting AP getting stuck
during bringup (patch 3).  Patch 2 is preparatory changes for the work
done in patch 3.

They should be non-functional changes for systems working correctly.

Thanks, Roger.

Roger Pau Monne (3):
  x86/boot: print CPU and APIC ID in bring up failure
  x86/traps: split code to dump execution state to a separate helper
  x86/boot: attempt to print trace and panic on AP bring up stall

 xen/arch/x86/include/asm/processor.h |  1 +
 xen/arch/x86/smpboot.c               | 15 ++++++-
 xen/arch/x86/traps.c                 | 63 ++++++++++++++++++----------
 3 files changed, 54 insertions(+), 25 deletions(-)

-- 
2.49.0