From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 1257DC2D0C6 for ; Wed, 11 Dec 2019 15:34:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D23AB2173E for ; Wed, 11 Dec 2019 15:34:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576078464; bh=smeqQ1N1Re85MA8n4JgqPj9T/O9LZV5Frj28DfmvbDA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=b+zLD/UkgBGGvlgUxEXG6NbiYu+bTY3StJk65ofV3swv3gxFs8F4AzjJKQBH2li4y EZXoi1SFiDmZkF71nAkJgo8y32lp63FsNbEJiBGJkDJahclf8f2HEbDXQbkVkdeEb9 FQNHWJPdTEAY7E5pUxcQonRr1CA9GAs+IGY0yPU8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387617AbfLKP21 (ORCPT ); Wed, 11 Dec 2019 10:28:27 -0500 Received: from mail.kernel.org ([198.145.29.99]:34010 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387535AbfLKP2D (ORCPT ); Wed, 11 Dec 2019 10:28:03 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 35FAC24671; Wed, 11 Dec 2019 15:28:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576078082; bh=smeqQ1N1Re85MA8n4JgqPj9T/O9LZV5Frj28DfmvbDA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xGPPvErrW4wI//I2HQZN51xRJDcsUidGnb+ZfoQk278XRaFZ2bolgMqugeaM/hAqh TvlNguan/ILoQvsSujWJLyRlSfdkxhs8Epgz3wYu1pt8gRzSkOYz3npvfKRIGdyu2K Qljkq8fRrC7QicoG9VbqEUVOm9ge9IKc2KRgSlFI= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Harald Freudenberger , Vasily Gorbik , Sasha Levin , linux-s390@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 73/79] s390/zcrypt: handle new reply code FILTERED_BY_HYPERVISOR Date: Wed, 11 Dec 2019 10:26:37 -0500 Message-Id: <20191211152643.23056-73-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191211152643.23056-1-sashal@kernel.org> References: <20191211152643.23056-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 2e1a27bd97d12..2126f4cc6d374 100644 --- a/drivers/s390/crypto/zcrypt_error.h +++ b/drivers/s390/crypto/zcrypt_error.h @@ -62,6 +62,7 @@ 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 @@ -92,6 +93,7 @@ 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 -- 2.20.1