From patchwork Sat Feb 26 22:06:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jason A. Donenfeld" X-Patchwork-Id: 12761487 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DDA10C433FE for ; Sat, 26 Feb 2022 22:07:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229778AbiBZWHi (ORCPT ); Sat, 26 Feb 2022 17:07:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50714 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229759AbiBZWHh (ORCPT ); Sat, 26 Feb 2022 17:07:37 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F2C32BA9C3; Sat, 26 Feb 2022 14:07:00 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 6B8AB6102D; Sat, 26 Feb 2022 22:06:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D6EF7C340E8; Sat, 26 Feb 2022 22:06:57 +0000 (UTC) Authentication-Results: smtp.kernel.org; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="LzsRMBNg" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zx2c4.com; s=20210105; t=1645913215; 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; bh=01UTf7O373LIbwYDGLgA49GLqG6GmaXy+U95oNhQ3+0=; b=LzsRMBNg6OFO5ODbemd2Twz9Q4lUpxgd3FtxsZbsMVnon4+5vRpPBE7d5D5+C7pfX+gRkN FXisqHN6Jsa0bevElU/eGrkOZgPdPEky0q8n04HaKD8QrtuMiEb0mqGDD3E2El6PR5z1ka llHnwCaG5A6hoj7ldhOzOiJk8mSWdTU= Received: by mail.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id ada8a9c2 (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO); Sat, 26 Feb 2022 22:06:55 +0000 (UTC) From: "Jason A. Donenfeld" To: Len Brown , "Rafael J. Wysocki" Cc: "Jason A. Donenfeld" , linux-crypto@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Alexander Graf , Ard Biesheuvel , Greg Kroah-Hartman Subject: [PATCH v5 0/3] ACPI: VM fork detection for RNG Date: Sat, 26 Feb 2022 23:06:36 +0100 Message-Id: <20220226220639.1173594-1-Jason@zx2c4.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Hi Rafael & Len, This patchset is directed toward you two specifically. Patches 1/3 and 3/3 have been through the ringer of review a bit already and do not specifically require your attention, but in v4 we wound up getting hung up on an ACPI API limitation. This v5 fixes that limitation with its 2/3 patch, with a trivial one line fix, which does require your attention. Patches 1/3 and 3/3 will go through my random.git tree. However, 3/3 actually depends on 2/3 in order to compile without warnings (and be functional at all). Therefore, it would be nice if you would provide an "Acked-by" on it and permit me to /also/ take it through my random.git tree (if it looks like a correct patch to you, of course). This would make the merge logistics a lot easier. Plus it's a small +1/-1 line change. Please have a look and let me know what you think. Thanks, Jason Cc: linux-crypto@vger.kernel.org Cc: linux-acpi@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Alexander Graf Cc: Ard Biesheuvel Cc: Greg Kroah-Hartman Alexander Graf (1): ACPI: allow longer device IDs Jason A. Donenfeld (2): random: add mechanism for VM forks to reinitialize crng virt: vmgenid: introduce driver for reinitializing RNG on VM fork MAINTAINERS | 1 + drivers/char/random.c | 50 +++++++++++----- drivers/virt/Kconfig | 11 ++++ drivers/virt/Makefile | 1 + drivers/virt/vmgenid.c | 100 ++++++++++++++++++++++++++++++++ include/linux/mod_devicetable.h | 2 +- include/linux/random.h | 1 + 7 files changed, 150 insertions(+), 16 deletions(-) create mode 100644 drivers/virt/vmgenid.c