From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-174.mta1.migadu.com (out-174.mta1.migadu.com [95.215.58.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E1C1C1C4614 for ; Thu, 31 Oct 2024 17:57:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730397438; cv=none; b=Krup+Cn7tJpvDLUnkEnxebsl3wz3OuSBnjOQX0K1MJ9euoVrle37RDS4hkIDhru8R9QFBFFYwP8/BKFn+kiRpIp/MIbJczdE35XHCZVhvAtQgm1gmMziXsmxxaWsmjDervwc0nrVpbZo1rsQukEimirgacCCGXSJATZb70gEusA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730397438; c=relaxed/simple; bh=q1YYUodSmTodhE+D81aQ6XaJa+CaDzbe/lugFywi4Os=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=CAgaS4Ms5UWgoZWPXrLSL0ARl2Jl0G5YAMaKtRrFB+x9rBlOHkIcC2HcdFyxw2HwdGzVUUnNrBmf09pIT2BMfozRE7mb8mJsoUnqIGEM3QtcImmgsWn/DZpOA0BAgKnPSKQQOnkZNEb+UXdhNvU1IFVZTQk48x+chRePU1J++TE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=XvOSQQTy; arc=none smtp.client-ip=95.215.58.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="XvOSQQTy" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1730397432; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bWtV3C7i/G3T+slJBVyjKo2SBOT6MrCS/c6nAmcFKU8=; b=XvOSQQTywyn8PCw6xWHtz1OrMtjHLRWt92nbzaZvZKYHrN31c8h6b8bI7KThzcdghDdNWP YYuFi56kPBEGeWUalckQgnAzJVNB2STUmA84eliFRc3Rq7w4FovNH2mvo1MqIcxGuF6HRB hIv2QMaIVOKAYrQ9wt2bRNq0OqomD7w= From: Oliver Upton To: linux-arm-kernel@lists.infradead.org, Catalin Marinas , Pavel Machek , Paolo Bonzini , Will Deacon , Len Brown , Shuah Khan , linux-kselftest@vger.kernel.org, kvmarm@lists.linux.dev, David Woodhouse , Lorenzo Pieralisi , Mark Rutland , Francesco Lavra , linux-pm@vger.kernel.org, David Woodhouse , Jonathan Corbet , kvm@vger.kernel.org, "Rafael J. Wysocki" , Miguel Luis , linux-kernel@vger.kernel.org, James Morse , Marc Zyngier , linux-doc@vger.kernel.org, Zenghui Yu , Suzuki K Poulose Cc: Oliver Upton Subject: Re: (subset) [PATCH v6 0/6] Add PSCI v1.3 SYSTEM_OFF2 support for hibernation Date: Thu, 31 Oct 2024 17:56:58 +0000 Message-ID: <173039739006.2928363.16193131105108954688.b4-ty@linux.dev> In-Reply-To: <20241019172459.2241939-1-dwmw2@infradead.org> References: <20241019172459.2241939-1-dwmw2@infradead.org> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT On Sat, 19 Oct 2024 18:15:41 +0100, David Woodhouse wrote: > The PSCI v1.3 spec (https://developer.arm.com/documentation/den0022) > adds support for a SYSTEM_OFF2 function enabling a HIBERNATE_OFF state > which is analogous to ACPI S4. This will allow hosting environments to > determine that a guest is hibernated rather than just powered off, and > ensure that they preserve the virtual environment appropriately to > allow the guest to resume safely (or bump the hardware_signature in the > FACS to trigger a clean reboot instead). > > [...] Thanks Catalin for the ack, as promised: Applied to kvmarm/next, thanks! [6/6] arm64: Use SYSTEM_OFF2 PSCI call to power off for hibernate https://git.kernel.org/kvmarm/kvmarm/c/3e251afaec9a -- Best, Oliver