From patchwork Mon Mar 18 09:35:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13595148 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 10562C54E58 for ; Mon, 18 Mar 2024 09:41:11 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rm9R3-000415-8d; Mon, 18 Mar 2024 05:37:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rm9Qp-0003uh-7u; Mon, 18 Mar 2024 05:37:24 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rm9Qi-0000v5-0d; Mon, 18 Mar 2024 05:37:22 -0400 Received: from mail.maildlp.com (unknown [172.19.88.214]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4TyqW14DNkz1FMmj; Mon, 18 Mar 2024 17:36:45 +0800 (CST) Received: from kwepemi500008.china.huawei.com (unknown [7.221.188.139]) by mail.maildlp.com (Postfix) with ESMTPS id 9E4FF1A016F; Mon, 18 Mar 2024 17:37:06 +0800 (CST) Received: from huawei.com (10.67.174.55) by kwepemi500008.china.huawei.com (7.221.188.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Mon, 18 Mar 2024 17:37:05 +0800 To: , , , , , , , CC: Subject: [RFC PATCH v8 09/23] target/arm: Handle PSTATE.ALLINT on taking an exception Date: Mon, 18 Mar 2024 09:35:31 +0000 Message-ID: <20240318093546.2786144-10-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240318093546.2786144-1-ruanjinjie@huawei.com> References: <20240318093546.2786144-1-ruanjinjie@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.174.55] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemi500008.china.huawei.com (7.221.188.139) Received-SPF: pass client-ip=45.249.212.191; envelope-from=ruanjinjie@huawei.com; helo=szxga05-in.huawei.com 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_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jinjie Ruan X-Patchwork-Original-From: Jinjie Ruan via From: Jinjie Ruan Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Set or clear PSTATE.ALLINT on taking an exception to ELx according to the SCTLR_ELx.SPINTMASK bit. Signed-off-by: Jinjie Ruan Reviewed-by: Richard Henderson --- v3: - Add Reviewed-by. --- target/arm/helper.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/target/arm/helper.c b/target/arm/helper.c index 4bc63bf7ca..81f4a8f194 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -11705,6 +11705,15 @@ static void arm_cpu_do_interrupt_aarch64(CPUState *cs) } } + if (cpu_isar_feature(aa64_nmi, cpu) && + (env->cp15.sctlr_el[new_el] & SCTLR_NMI)) { + if (!(env->cp15.sctlr_el[new_el] & SCTLR_SPINTMASK)) { + new_mode |= PSTATE_ALLINT; + } else { + new_mode &= ~PSTATE_ALLINT; + } + } + pstate_write(env, PSTATE_DAIF | new_mode); env->aarch64 = true; aarch64_restore_sp(env, new_el);