linux-kernel - [PATCH 0/2] Support SSTC while PM operations

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: <20240829033904.477200-1-nick.hu@sifive.com>
Date: Thu, 29 Aug 2024 11:38:58 +0800
From: Nick Hu <nick.hu@...ive.com>
To: greentime.hu@...ive.com,
	zong.li@...ive.com,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Pavel Machek <pavel@....cz>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Jones <ajones@...tanamicro.com>,
	Samuel Holland <samuel.holland@...ive.com>,
	Conor Dooley <conor.dooley@...rochip.com>,
	Sunil V L <sunilvl@...tanamicro.com>,
	Nick Hu <nick.hu@...ive.com>,
	linux-pm@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] Support SSTC while PM operations

When the cpu is going to be hotplug, stop the stimecmp to prevent pending
interrupt.
When the cpu is going to be suspended, save the stimecmp before entering
the suspend state and restore it in the resume path.

Nick Hu (2):
  riscv: Add stimecmp save and restore
  time-riscv: Stop stimecmp when cpu hotplug

 arch/riscv/include/asm/suspend.h  |  4 ++++
 arch/riscv/kernel/suspend.c       | 13 +++++++++++++
 drivers/clocksource/timer-riscv.c | 22 +++++++++++++++-------
 3 files changed, 32 insertions(+), 7 deletions(-)

-- 
2.34.1