From nobody Wed Dec 17 11:01:22 2025 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 DAD7EEE4993 for ; Tue, 22 Aug 2023 10:58:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234167AbjHVK6r (ORCPT ); Tue, 22 Aug 2023 06:58:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35964 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234234AbjHVK6n (ORCPT ); Tue, 22 Aug 2023 06:58:43 -0400 Received: from mail-yw1-x114a.google.com (mail-yw1-x114a.google.com [IPv6:2607:f8b0:4864:20::114a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C37DCD8 for ; Tue, 22 Aug 2023 03:58:22 -0700 (PDT) Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-589cc9f7506so62624567b3.2 for ; Tue, 22 Aug 2023 03:58:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1692701901; x=1693306701; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=1xwW+v61rdPoCKQce2vPFjbmpLjAsPrfEpwPotlFF+U=; b=ih84672TYQ0uR36sTapzunrkuaUbWHstif3b6iKv7mV3HpIc9cWZ/oYc7uNRCSLHII 2pHZd83QwfjJv/p3f29R0trlm8vijxENfi7yMuVBaY2+T5CCUyaUJS2KkqT9Jorm3XyA F4CKy9vVBhIcyEG+ZlJR3RgTozztbPtNsvxGcUzwgmX8MvrZ72+oxt2V2nNn9EAFgnZd eMI7hjX/T68tgwFc11i6TnaPMU0k2YP/zpC4v7zSsVJ90z2wWeWwpZtxjLTYUJzRvz1S uJ/x16oIz4Tkeb54hZV8Q6cD5KoMVbD2Mj8OWAieMWxQdl+7RGvaPgogdL6XCaL/ypW3 BHkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692701901; x=1693306701; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=1xwW+v61rdPoCKQce2vPFjbmpLjAsPrfEpwPotlFF+U=; b=LVu3JxnGbW7xDv0sl1fbbsRAXob0C5+cg2XdgZI9bEt1ZOs8qfiG02ftV7jsyclmxD swWFxpzgc2EAaWgfaNeEl4X52AmuQxduYeuOeiKCRZFvYGLwrheNl1wZfehlKbc+gJY5 l2gkUHQVNMYeRs+0mo+kftrOeYgabNcyTpVDiaOBOXdGHuDP9UOSFEHlxQ93ivUWWxbZ Pv+Kn81eVhgHJjA27rVXI6AH/TU43PEChVHHkxBdNOFIMuC4EXfjs8eYR9VQOIdHMYwZ 5/9lI6Bqdbc6Zu9tC5c80ePY3NrwAgdRvsRL8rb2k01qLJ3d/qqcvHGa/mTIJFrax1mK J54A== X-Gm-Message-State: AOJu0YzkABWZttCapqpWidsBvlj4Y+n8m4nN3z/JSVHmBY4mTh4AVAOH XvXSwoX8KmUWOTWngPAXHCzrnq/BLSjC X-Google-Smtp-Source: AGHT+IGuW/3tPdCQ3blX7ef1nckHZq80wU2cX1yfJoUAETquSTLyTg4Dg7WC4rSmY3PWOYxMSvKC8jV1/Uko X-Received: from mshavit.ntc.corp.google.com ([2401:fa00:95:20c:44ad:3968:8aaa:c4fe]) (user=mshavit job=sendgmr) by 2002:a81:af23:0:b0:562:837:122f with SMTP id n35-20020a81af23000000b005620837122fmr87489ywh.9.1692701901552; Tue, 22 Aug 2023 03:58:21 -0700 (PDT) Date: Tue, 22 Aug 2023 18:57:04 +0800 In-Reply-To: <20230822105738.1607365-1-mshavit@google.com> Mime-Version: 1.0 References: <20230822105738.1607365-1-mshavit@google.com> X-Mailer: git-send-email 2.42.0.rc1.204.g551eb34607-goog Message-ID: <20230822185632.RFC.v2.8.I65dd382de382428dcb33333342b35405903ac768@changeid> Subject: [RFC PATCH v2 8/9] iommu/arm-smmu-v3: check for domain initialization using pgtbl_ops From: Michael Shavit To: iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: nicolinc@nvidia.com, tina.zhang@intel.com, jean-philippe@linaro.org, will@kernel.org, robin.murphy@arm.com, jgg@nvidia.com, Michael Shavit , Dawei Li , Jason Gunthorpe , Joerg Roedel , "Kirill A. Shutemov" , Lu Baolu , Mark Brown Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" In order to remove smmu_domain->smmu in the next commit Signed-off-by: Michael Shavit --- (no changes since v1) drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/ar= m/arm-smmu-v3/arm-smmu-v3.c index 7c9897702bcde..9f8b701771fc3 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2894,7 +2894,7 @@ static int arm_smmu_enable_nesting(struct iommu_domai= n *domain) int ret =3D 0; =20 mutex_lock(&smmu_domain->init_mutex); - if (smmu_domain->smmu) + if (smmu_domain->pgtbl_ops) ret =3D -EPERM; else smmu_domain->stage =3D ARM_SMMU_DOMAIN_NESTED; --=20 2.42.0.rc1.204.g551eb34607-goog