From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (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 4FC713081A2; Wed, 26 Nov 2025 02:13:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764123196; cv=none; b=ad45G3dMywH9bX5BvM0uvxwM2lhID8ttsTbTJVWhgZ1JWNig3R+AkZc4JuKhSntw+8/IOOJl3mNDC0pg31SPL0CeGGvdRfRb2KwKQbHFtyrEfFLCMpsCbCiUGdHv0JS0+FDmnBxxt9mCh/p0apTrr0SvGhCXR9ERCK2/mZe8DP4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764123196; c=relaxed/simple; bh=l33CIgyhKLpLw98GU9xdxzTlqqZv4JzOJGO4WqkP2vM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=kmk2cIL6D0U3QuyV7aMAxZTe4FM5kRhj1n7YYW2MFtFkhE4HwqcT8S2cjLKVgsxEqw/DYbxuwQ+5HHQviOeA4S09KfLLs04llVOeDQVFheSetFbcxAsqbAXd59+vaCjof7EG2rTnffYv7+qQ0rcJupfnd7aQIxm/XaLKM3qMiKQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=WuwSWtCg; arc=none smtp.client-ip=192.198.163.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="WuwSWtCg" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1764123194; x=1795659194; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=l33CIgyhKLpLw98GU9xdxzTlqqZv4JzOJGO4WqkP2vM=; b=WuwSWtCgDY4S6LS1DeETc2In1PEyqtIzUB1S4HlbYGjTS6cqkcY/aLty kIS7ugCKX1LhpyA1e52RNYC37/seFHWynOzLvsYPZRUkPcwaTJxaounzY SlsPUtVLw9YVecfz7fw7I+JZ6P6lk7ylUBpt1YS+87BgdqjG6kKYu8vlP /7S//gofj9N/L55Xmi4PanuzpHn0vksb1du8G0IfFoVznH+NTy9shx+bl 713BdYUGsnbSJGe65iHzJ6wPh8m6Tovt6gEGEIDE00D8A6xeqmcKSiktV e3KruyD1P6c2AFTW96D4jNCr8XEpPmD8RFzlZngN7IN0f8CNUaB47ALaC w==; X-CSE-ConnectionGUID: GTcJl0stTR6Sa5d0yNlsNg== X-CSE-MsgGUID: xFhHPKt8TQmnhyhpUe/hMg== X-IronPort-AV: E=McAfee;i="6800,10657,11624"; a="66040343" X-IronPort-AV: E=Sophos;i="6.20,227,1758610800"; d="scan'208";a="66040343" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Nov 2025 18:13:13 -0800 X-CSE-ConnectionGUID: 3F08XkzjQ22fv3h6BukwKg== X-CSE-MsgGUID: 9txGjdGPR22BjCj9if3Etw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.20,227,1758610800"; d="scan'208";a="192696992" Received: from ranerica-svr.sc.intel.com ([172.25.110.23]) by fmviesa006.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Nov 2025 18:13:13 -0800 Date: Tue, 25 Nov 2025 18:20:10 -0800 From: Ricardo Neri To: "Rafael J. Wysocki" Cc: x86@kernel.org, Krzysztof Kozlowski , Conor Dooley , Rob Herring , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Michael Kelley , Saurabh Sengar , Chris Oo , "Kirill A. Shutemov" , linux-hyperv@vger.kernel.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Ricardo Neri Subject: Re: [PATCH v7 1/9] x86/acpi: Add functions to setup and access the wakeup mailbox Message-ID: <20251126022010.GA27627@ranerica-svr.sc.intel.com> References: <20251117-rneri-wakeup-mailbox-v7-0-4a8b82ab7c2c@linux.intel.com> <20251117-rneri-wakeup-mailbox-v7-1-4a8b82ab7c2c@linux.intel.com> Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) On Mon, Nov 24, 2025 at 05:01:11PM +0100, Rafael J. Wysocki wrote: > On Mon, Nov 17, 2025 at 6:04 PM Ricardo Neri > wrote: > > > > Systems that describe hardware using DeviceTree graphs may enumerate and > > implement the wakeup mailbox as defined in the ACPI specification but do > > not otherwise depend on ACPI. Expose functions to setup and access the > > location of the wakeup mailbox from outside ACPI code. > > > > The function acpi_setup_mp_wakeup_mailbox() stores the physical address of > > the mailbox and updates the wakeup_secondary_cpu_64() APIC callback. > > > > The function acpi_madt_multiproc_wakeup_mailbox() returns a pointer to the > > mailbox. > > > > Signed-off-by: Ricardo Neri > > Acked-by: Rafael J. Wysocki (Intel) Thanks Rafael!