From patchwork Wed Mar 3 11:40:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudio Fontana X-Patchwork-Id: 1446591 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4DrC751xlwz9sWK for ; Wed, 3 Mar 2021 22:53:05 +1100 (AEDT) Received: from localhost ([::1]:44614 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lHQ3r-00009U-7Z for incoming@patchwork.ozlabs.org; Wed, 03 Mar 2021 06:53:03 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:55424) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lHPsZ-0001cC-5p for qemu-devel@nongnu.org; Wed, 03 Mar 2021 06:41:24 -0500 Received: from mx2.suse.de ([195.135.220.15]:42450) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lHPsQ-0003Sf-7S for qemu-devel@nongnu.org; Wed, 03 Mar 2021 06:41:22 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 9BAA7AF44; Wed, 3 Mar 2021 11:40:58 +0000 (UTC) From: Claudio Fontana To: Peter Maydell , =?utf-8?q?Philippe_Mathieu-Dau?= =?utf-8?q?d=C3=A9?= , Richard Henderson , =?utf-8?q?Alex_Benn=C3=A9?= =?utf-8?q?e?= Subject: [RFC v3 11/23] target/arm: kvm: add stubs for some helpers Date: Wed, 3 Mar 2021 12:40:41 +0100 Message-Id: <20210303114053.20305-12-cfontana@suse.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210303114053.20305-1-cfontana@suse.de> References: <20210303114053.20305-1-cfontana@suse.de> MIME-Version: 1.0 Received-SPF: pass client-ip=195.135.220.15; envelope-from=cfontana@suse.de; helo=mx2.suse.de X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Roman Bolshakov , Claudio Fontana , Eduardo Habkost , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" at least the armv7m one should go away with proper configuration changes (only enabling possible boards for KVM). Signed-off-by: Claudio Fontana --- target/arm/kvm/helper-stubs.c | 27 +++++++++++++++++++++++++++ target/arm/kvm/meson.build | 3 +++ target/arm/meson.build | 1 + 3 files changed, 31 insertions(+) create mode 100644 target/arm/kvm/helper-stubs.c create mode 100644 target/arm/kvm/meson.build diff --git a/target/arm/kvm/helper-stubs.c b/target/arm/kvm/helper-stubs.c new file mode 100644 index 0000000000..8e952c91fa --- /dev/null +++ b/target/arm/kvm/helper-stubs.c @@ -0,0 +1,27 @@ +/* + * QEMU ARM KVM stubs for some helper functions + * + * Copyright 2021 SUSE LLC + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "cpu.h" + +/* return the effective value of HCR_EL2. For KVM, always 0. */ +uint64_t arm_hcr_el2_eff(CPUARMState *env) +{ + return 0; +} + +int fp_exception_el(CPUARMState *env, int cur_el) +{ + return 0; +} + +void write_v7m_exception(CPUARMState *env, uint32_t new_exc) +{ + g_assert_not_reached(); +} diff --git a/target/arm/kvm/meson.build b/target/arm/kvm/meson.build new file mode 100644 index 0000000000..1015fc0afb --- /dev/null +++ b/target/arm/kvm/meson.build @@ -0,0 +1,3 @@ +arm_ss.add(when: 'CONFIG_TCG', if_false: files( + 'helper-stubs.c', +)) diff --git a/target/arm/meson.build b/target/arm/meson.build index 7a6d0d6ba4..cd2ae221a6 100644 --- a/target/arm/meson.build +++ b/target/arm/meson.build @@ -34,6 +34,7 @@ arm_softmmu_ss.add(when: 'CONFIG_TCG', if_true: files( arm_user_ss = ss.source_set() subdir('tcg') +subdir('kvm') target_arch += {'arm': arm_ss} target_softmmu_arch += {'arm': arm_softmmu_ss}