From: Bin Meng <bin.meng@processmission.com>
To: QEMU <qemu-devel@nongnu.org>
Cc: "Alistair Francis" <alistair@alistair23.me>,
"Andrew Jeffery" <andrew@codeconstruct.com.au>,
"Cédric Le Goater" <clg@kaod.org>,
"Edgar E. Iglesias" <edgar.iglesias@gmail.com>,
"Gaurav Sharma" <gaurav.sharma_7@nxp.com>,
"Hao Wu" <wuhaotsh@google.com>,
"Jamin Lin" <jamin_lin@aspeedtech.com>,
"Jan Kiszka" <jan.kiszka@web.de>,
"Jean-Christophe Dubois" <jcd@tribudubois.net>,
"Joel Stanley" <joel@jms.id.au>,
"Kane Chen" <kane_chen@aspeedtech.com>,
"Niek Linnenbank" <nieklinnenbank@gmail.com>,
"Peter Maydell" <peter.maydell@linaro.org>,
"Steven Lee" <steven_lee@aspeedtech.com>,
"Strahinja Jankovic" <strahinja.p.jankovic@gmail.com>,
"Troy Lee" <leetroy@gmail.com>,
"Tyrone Ting" <kfting@nuvoton.com>,
qemu-arm@nongnu.org
Subject: [PATCH v2 00/20] hw/arm: Store the ARM boot info in the machine state
Date: Sun, 16 Aug 2026 21:12:30 +0800 [thread overview]
Message-ID: <20260816131300.51799-1-bin.meng@processmission.com> (raw)
Most ARM board files declare their struct arm_boot_info as a static
object at file scope (or, occasionally, as a function-local static
inside the machine init function). arm_load_kernel() stashes a pointer
to that struct in every CPU and dereferences it from do_cpu_reset() on
each reset, so the boot info conceptually belongs to the machine for the
lifetime of the VM, not to a static object whose ownership is left
implicit.
This is a longstanding leftover pattern: modern machines such as virt,
raspi and xlnx-zcu102 already keep the boot info in their MachineState
subclass. This series converts the remaining machines that still use
a static object, moving the struct into their machine state so that its
lifetime and ownership match how arm_load_kernel() actually uses it.
Changes in v2:
Addressed 2 review comments from Peter:
- All assignments now use individual field writes (e.g.:
bpms->bootinfo.loader_start = ...). This applies to: collie, cubieboard,
exynos4, imx8mm-evk, integratorcp, kzm, mcimx7d-sabre, musicpal, npcm7xx,
npcm8xx, omap_sx1, realview, sabrelite
- The following boards that previously used DEFINE_MACHINE_ARM/AARCH64 now
use the macro DEFINE_MACHINE_EXTENDED() instead: bananapi_m2u,
cubieboard, imx8mm-evk, integratorcp, mcimx7d-sabre, musicpal,
orangepi-pc
Bin Meng (20):
hw/arm: aspeed: Store boot info in the machine state
hw/arm: aspeed_ast27x0-fc: Store boot info in the machine state
hw/arm: bananapi_m2u: Store boot info in the machine state
hw/arm: collie: Store boot info in the machine state
hw/arm: cubieboard: Store boot info in the machine state
hw/arm: exynos4_boards: Store boot info in the board state
hw/arm: imx25_pdk: Store boot info in the board state
hw/arm: imx8mm-evk: Store boot info in the machine state
hw/arm: integratorcp: Store boot info in the machine state
hw/arm: kzm: Store boot info in the board state
hw/arm: mcimx7d-sabre: Store boot info in the machine state
hw/arm: musicpal: Store boot info in the machine state
hw/arm: npcm7xx: Store boot info in the machine state
hw/arm: npcm8xx: Store boot info in the machine state
hw/arm: omap_sx1: Store boot info in the machine state
hw/arm: orangepi: Store boot info in the machine state
hw/arm: realview: Store boot info in the machine state
hw/arm: sabrelite: Store boot info in the machine state
hw/arm: versatilepb: Store boot info in the machine state
hw/arm: xilinx_zynq: Store boot info in the machine state
hw/arm/aspeed.c | 17 +++++++----------
hw/arm/aspeed_ast27x0-fc.c | 13 ++++++-------
hw/arm/bananapi_m2u.c | 21 +++++++++++++++------
hw/arm/collie.c | 12 +++++-------
hw/arm/cubieboard.c | 21 +++++++++++++++------
hw/arm/exynos4_boards.c | 26 +++++++++++---------------
hw/arm/imx25_pdk.c | 11 +++++------
hw/arm/imx8mm-evk.c | 29 +++++++++++++++++++----------
hw/arm/integratorcp.c | 22 ++++++++++++++++------
hw/arm/kzm.c | 12 +++++-------
hw/arm/mcimx7d-sabre.c | 28 +++++++++++++++++++---------
hw/arm/musicpal.c | 21 +++++++++++++++------
hw/arm/npcm7xx.c | 28 +++++++++++++---------------
hw/arm/npcm7xx_boards.c | 10 +++++-----
hw/arm/npcm8xx.c | 28 +++++++++++++---------------
hw/arm/npcm8xx_boards.c | 2 +-
hw/arm/omap_sx1.c | 19 +++++++++++++------
hw/arm/orangepi.c | 22 ++++++++++++++++------
hw/arm/realview.c | 27 ++++++++++++++++++---------
hw/arm/sabrelite.c | 22 ++++++++++------------
hw/arm/versatilepb.c | 16 ++++++++++++----
hw/arm/xilinx_zynq.c | 17 ++++++++---------
include/hw/arm/aspeed.h | 2 ++
include/hw/arm/npcm7xx.h | 10 ++++++++--
include/hw/arm/npcm8xx.h | 10 ++++++++--
include/hw/arm/xilinx_zynq.h | 2 ++
26 files changed, 267 insertions(+), 181 deletions(-)
---
base-commit: af06b5df2610fe5de6c02d17c17bced9e9f0d47d
branch: cleanup-arm-static-boot-info
--
2.53.0
next reply other threads:[~2026-08-16 13:16 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-16 13:12 Bin Meng [this message]
2026-08-16 13:12 ` [PATCH v2 01/20] hw/arm: aspeed: Store boot info in the machine state Bin Meng
2026-08-16 14:54 ` Philippe Mathieu-Daudé
2026-08-16 13:12 ` [PATCH v2 02/20] hw/arm: aspeed_ast27x0-fc: " Bin Meng
2026-08-16 14:55 ` Philippe Mathieu-Daudé
2026-08-16 13:12 ` [PATCH v2 03/20] hw/arm: bananapi_m2u: " Bin Meng
2026-08-16 13:12 ` [PATCH v2 04/20] hw/arm: collie: " Bin Meng
2026-08-16 13:12 ` [PATCH v2 05/20] hw/arm: cubieboard: " Bin Meng
2026-08-16 13:12 ` [PATCH v2 06/20] hw/arm: exynos4_boards: Store boot info in the board state Bin Meng
2026-08-16 14:56 ` Philippe Mathieu-Daudé
2026-08-16 13:12 ` [PATCH v2 07/20] hw/arm: imx25_pdk: " Bin Meng
2026-08-16 13:12 ` [PATCH v2 08/20] hw/arm: imx8mm-evk: Store boot info in the machine state Bin Meng
2026-08-16 13:12 ` [PATCH v2 09/20] hw/arm: integratorcp: " Bin Meng
2026-08-16 13:12 ` [PATCH v2 10/20] hw/arm: kzm: Store boot info in the board state Bin Meng
2026-08-16 13:12 ` [PATCH v2 11/20] hw/arm: mcimx7d-sabre: Store boot info in the machine state Bin Meng
2026-08-16 13:12 ` [PATCH v2 12/20] hw/arm: musicpal: " Bin Meng
2026-08-16 13:12 ` [PATCH v2 13/20] hw/arm: npcm7xx: " Bin Meng
2026-08-16 13:12 ` [PATCH v2 14/20] hw/arm: npcm8xx: " Bin Meng
2026-08-16 13:12 ` [PATCH v2 15/20] hw/arm: omap_sx1: " Bin Meng
2026-08-16 14:57 ` Philippe Mathieu-Daudé
2026-08-16 13:12 ` [PATCH v2 16/20] hw/arm: orangepi: " Bin Meng
2026-08-16 13:12 ` [PATCH v2 17/20] hw/arm: realview: " Bin Meng
2026-08-16 13:12 ` [PATCH v2 18/20] hw/arm: sabrelite: " Bin Meng
2026-08-16 15:07 ` Philippe Mathieu-Daudé
2026-08-16 13:12 ` [PATCH v2 19/20] hw/arm: versatilepb: " Bin Meng
2026-08-16 15:06 ` Philippe Mathieu-Daudé
2026-08-16 13:12 ` [PATCH v2 20/20] hw/arm: xilinx_zynq: " Bin Meng
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