From patchwork Thu Jan 2 22:06:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 234500 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 772C0C3276D for ; Thu, 2 Jan 2020 22:57:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4C667222C3 for ; Thu, 2 Jan 2020 22:57:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578005862; bh=Xm07mB2Dsc0ytOIQKa0Wk2NIXYvBxnC+hk5c6Mj++e8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=njSDMFkkQwFtacHi30b8MVzH8QAVYLw4RrZvnixHzgOXimjnVUlismBbWQ8P5p19p iYWMUO0U304rSogbs3zmFP/+eTZIhf3R2y8MZh5kUNEfnmGlqpHLNp3dyhof9MdC/S fFaq+ukqzBUNeG4o4uL5Pg8QHO91Tdj4OdwONEEA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727377AbgABWQi (ORCPT ); Thu, 2 Jan 2020 17:16:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:58662 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728273AbgABWQh (ORCPT ); Thu, 2 Jan 2020 17:16:37 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6FD17227BF; Thu, 2 Jan 2020 22:16:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578003396; bh=Xm07mB2Dsc0ytOIQKa0Wk2NIXYvBxnC+hk5c6Mj++e8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wTAy3ugb7mZ5js8ONWbIa2Bgj9DW0Ei6fC7MAFMnMqke666fLJ9xAuvPA/GQyPans t5vjc3qkB/4atUzyIJzlP495VFmn/4AGv1CiFSQEexYJJ05sSDHpRjuuUgh/g+UBXi 8H8lB+2e5JN8EkKn9om4wgQD95SXMd3kX4/7jv9A= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Harald Freudenberger , Vasily Gorbik , Sasha Levin Subject: [PATCH 5.4 118/191] s390/zcrypt: handle new reply code FILTERED_BY_HYPERVISOR Date: Thu, 2 Jan 2020 23:06:40 +0100 Message-Id: <20200102215842.483749743@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200102215829.911231638@linuxfoundation.org> References: <20200102215829.911231638@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Harald Freudenberger [ Upstream commit 6733775a92eacd612ac88afa0fd922e4ffeb2bc7 ] This patch introduces support for a new architectured reply code 0x8B indicating that a hypervisor layer (if any) has rejected an ap message. Linux may run as a guest on top of a hypervisor like zVM or KVM. So the crypto hardware seen by the ap bus may be restricted by the hypervisor for example only a subset like only clear key crypto requests may be supported. Other requests will be filtered out - rejected by the hypervisor. The new reply code 0x8B will appear in such cases and needs to get recognized by the ap bus and zcrypt device driver zoo. Signed-off-by: Harald Freudenberger Signed-off-by: Vasily Gorbik Signed-off-by: Sasha Levin --- drivers/s390/crypto/zcrypt_error.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/s390/crypto/zcrypt_error.h b/drivers/s390/crypto/zcrypt_error.h index f34ee41cbed8..4f4dd9d727c9 100644 --- a/drivers/s390/crypto/zcrypt_error.h +++ b/drivers/s390/crypto/zcrypt_error.h @@ -61,6 +61,7 @@ struct error_hdr { #define REP82_ERROR_EVEN_MOD_IN_OPND 0x85 #define REP82_ERROR_RESERVED_FIELD 0x88 #define REP82_ERROR_INVALID_DOMAIN_PENDING 0x8A +#define REP82_ERROR_FILTERED_BY_HYPERVISOR 0x8B #define REP82_ERROR_TRANSPORT_FAIL 0x90 #define REP82_ERROR_PACKET_TRUNCATED 0xA0 #define REP82_ERROR_ZERO_BUFFER_LEN 0xB0 @@ -91,6 +92,7 @@ static inline int convert_error(struct zcrypt_queue *zq, case REP82_ERROR_INVALID_DOMAIN_PRECHECK: case REP82_ERROR_INVALID_DOMAIN_PENDING: case REP82_ERROR_INVALID_SPECIAL_CMD: + case REP82_ERROR_FILTERED_BY_HYPERVISOR: // REP88_ERROR_INVALID_KEY // '82' CEX2A // REP88_ERROR_OPERAND // '84' CEX2A // REP88_ERROR_OPERAND_EVEN_MOD // '85' CEX2A