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From: Vishal Chourasia <vishalc@linux.ibm.com>
To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org
Cc: npiggin@gmail.com, rathc@linux.ibm.com, harshpb@linux.ibm.com,
	amachhiw@linux.ibm.com, sbhat@linux.ibm.com,
	gautam@linux.ibm.com, Vishal Chourasia <vishalc@linux.ibm.com>
Subject: [PATCH 0/2] ppc/spapr: refactor cpu hotplug related code
Date: Sat,  4 Jul 2026 16:06:12 +0530	[thread overview]
Message-ID: <20260704103617.632929-2-vishalc@linux.ibm.com> (raw)

In the past we have seen issues related to cpu hotplug which are
observed in certain rare case scenarios and not always easy to
investigate and debug [1]. Recently we merged a fix for specific cpu
hotplug scenario which observed along with kdump operations [2].

Additionally, spapr.c has grown to over 5000 lines which also contains
CPU hotplug related code which accounts for nearly 1000 of those lines
yet is conceptually self-contained and independent of the rest of the
machine model.

Extract the cpu hotplug related code into a new compilation unit,
spapr_cpu_hotplug.c, with a matching header.

Also, adding myself as reviewer for PPC KVM CPUs to help share the
review work.

[1] https://lore.kernel.org/all/0732de44-964c-4e0f-b4fd-dcc631ba70fa@linux.ibm.com/
[2] https://gitlab.com/qemu-project/qemu/-/commit/a1c2dfee4f0229bc59bd3ca20af8de1b5543973d

Vishal Chourasia (2):
  ppc/spapr: refactor cpu hotplug code to separate file
  MAINTAINERS: add self as reviewer for PPC KVM CPUs

 MAINTAINERS                        |   4 +
 hw/ppc/meson.build                 |   1 +
 hw/ppc/spapr.c                     | 903 +-------------------------
 hw/ppc/spapr_cpu_hotplug.c         | 984 +++++++++++++++++++++++++++++
 include/hw/ppc/spapr_cpu_hotplug.h |  74 +++
 5 files changed, 1064 insertions(+), 902 deletions(-)
 create mode 100644 hw/ppc/spapr_cpu_hotplug.c
 create mode 100644 include/hw/ppc/spapr_cpu_hotplug.h

-- 
2.54.0



             reply	other threads:[~2026-07-04 10:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-04 10:36 Vishal Chourasia [this message]
2026-07-04 10:36 ` [PATCH 1/2] ppc/spapr: refactor cpu hotplug code to separate file Vishal Chourasia
2026-07-07 13:49   ` Amit Machhiwal
2026-07-08  5:41     ` Harsh Prateek Bora
2026-07-04 10:36 ` [PATCH 2/2] MAINTAINERS: add self as reviewer for PPC KVM CPUs Vishal Chourasia

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