linux-kernel - [PATCH 0/4] irqchip/sg2042-msi: Fix broken affinity setting

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250807112326.748740-1-inochiama@gmail.com>
Date: Thu,  7 Aug 2025 19:23:21 +0800
From: Inochi Amaoto <inochiama@...il.com>
To: Thomas Gleixner <tglx@...utronix.de>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Marc Zyngier <maz@...nel.org>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Inochi Amaoto <inochiama@...il.com>,
	Saurabh Sengar <ssengar@...ux.microsoft.com>,
	Shradha Gupta <shradhagupta@...ux.microsoft.com>,
	Jonathan Cameron <Jonathan.Cameron@...ei.com>,
	Nicolin Chen <nicolinc@...dia.com>,
	Jason Gunthorpe <jgg@...pe.ca>,
	Chen Wang <unicorn_wang@...look.com>
Cc: linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org,
	Yixun Lan <dlan@...too.org>,
	Longbin Li <looong.bin@...il.com>
Subject: [PATCH 0/4] irqchip/sg2042-msi: Fix broken affinity setting

When using NVME on SG2044, the NVME always complains "I/O tag XXX
(XXX) QID XX timeout, completion polled", which is caused by the
broken handler of the sg2042-msi driver.

As PLIC driver can only setting affinity when enabling, the sg2042-msi
does not properly handled affinity setting previously and enable irq in
an unexpected executing path.

Add irq_startup/irq_shutdown support to the PCI template domain,
then set irq_chip_[startup/shutdown]_parent for irq_startup/
irq_shutdown of the sg2042-msi driver. So the irq can be started
properly.

Inochi Amaoto (4):
  genirq: Add irq_chip_(startup/shutdown)_parent
  PCI/MSI: Add startup/shutdown support for per device MSI[X] domains
  irqchip/sg2042-msi: Fix broken affinity setting
  irqchip/sg2042-msi: Set MSI_FLAG_MULTI_PCI_MSI flags for SG2044

 drivers/irqchip/irq-sg2042-msi.c | 13 ++++++--
 drivers/pci/msi/irqdomain.c      | 52 ++++++++++++++++++++++++++++++++
 include/linux/irq.h              |  2 ++
 include/linux/msi.h              |  2 ++
 kernel/irq/chip.c                | 37 +++++++++++++++++++++++
 5 files changed, 104 insertions(+), 2 deletions(-)

--
2.50.1