linux-kernel - Re: [PATCH -fixes v4 3/3] riscv: Save/restore envcfg CSR during CPU suspend

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

Message-ID: <20240228-persuader-dehydrate-549097aafac1@spud>
Date: Wed, 28 Feb 2024 10:14:30 +0000
From: Conor Dooley <conor@...nel.org>
To: Samuel Holland <samuel.holland@...ive.com>
Cc: Palmer Dabbelt <palmer@...belt.com>,
	Andrew Jones <ajones@...tanamicro.com>,
	linux-kernel@...r.kernel.org, Alexandre Ghiti <alex@...ti.fr>,
	linux-riscv@...ts.infradead.org,
	Stefan O'Rear <sorear@...tmail.com>, stable@...r.kernel.org
Subject: Re: [PATCH -fixes v4 3/3] riscv: Save/restore envcfg CSR during CPU
 suspend

On Tue, Feb 27, 2024 at 10:55:35PM -0800, Samuel Holland wrote:
> The value of the [ms]envcfg CSR is lost when entering a nonretentive
> idle state, so the CSR must be rewritten when resuming the CPU.
> 
> Cc: <stable@...r.kernel.org> # v6.7+
> Fixes: 43c16d51a19b ("RISC-V: Enable cbo.zero in usermode")
> Signed-off-by: Samuel Holland <samuel.holland@...ive.com>

Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

Cheers,
Conor.

Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)