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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80426C433FE for ; Thu, 14 Apr 2022 19:20:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345617AbiDNTWg (ORCPT ); Thu, 14 Apr 2022 15:22:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345204AbiDNTWO (ORCPT ); Thu, 14 Apr 2022 15:22:14 -0400 Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04426ABF76 for ; Thu, 14 Apr 2022 12:19:47 -0700 (PDT) Received: by mail-lf1-x12d.google.com with SMTP id w19so10734749lfu.11 for ; Thu, 14 Apr 2022 12:19:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=JLvcL2fLROn3t3atjcd/ETf/m7mMDU63S8SDHDmllis=; b=PHixjVnS4M4CDbB1CHxDVeo28b/aVzSp0mJdrnkLOhqhj+Q/2wwhqo/TFVejF1D2cn M+V0zaS78dJd9lsRuBeMiEdLy1jV96PMJyIQ6tdjGX+3REplXlVqvCJvz8NPjkgZDOPf 0khIrkBNwrWYo3QJ78y6BdHbLNpK0mHknzDWftCsqrE3xGyfA0HJKlIH7azM+WvVfhCo FHFrJ5hJRJK3Z7+BjHY/QTvixVEHiQzKm5aCRqRcCN/lRd8u9CYEkm4z/L9bHAfjRB0R fxISXS4qdfBlfdENdbDSL4T/6mCEkKAVOD6Rznx/DdO6NACB2S+j7tbT1uhlqWI/zvSd XiZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=JLvcL2fLROn3t3atjcd/ETf/m7mMDU63S8SDHDmllis=; b=hONjbKwSm/Iz5n+ww9SpAehhaHiVnNbbDpbJ9XSKkB6dPAwPfhC3D3coCol73mTmFR F6JvQqAE+fK9gMPKp5MN6vWO4Pokx1jFCU6Xu2uth8cSjF6cs4FOHunWwyDjofzFW4nT r8v/2oEVh9LgpyvJlbbbACW5MXsu4BdaRdy9+6QGJw5E24LSrHBRUImNtpr5UKLABmO3 QPLtBrLhqlURlbb4Bj03qxjpIPjzREQpAQ+XtMtZ1xFrwjz4ni+kBhwzm5nM886cR9tI i7DN4BfI1WdSYn93ozbxb70OGnd2e394PC7ZVWYz3cdrGgNajBTHxppUJMWCLOOtzriu N/4A== X-Gm-Message-State: AOAM533vDodM9E31KmMmhsZb3SuGIZgc4Ma8cFesRnfqso3T7fTteEAB Yjvr53Q0vEniJqsdNi/kFeqxaNh1yBw= X-Google-Smtp-Source: ABdhPJwMUxbIWiWwpSwBanMHzTQNTMGbJ4JbV9MkuLqT17euk/S+BBLtlBgciKyx0qEt1KTBdH2vcw== X-Received: by 2002:a05:6512:1082:b0:44a:a6be:90b with SMTP id j2-20020a056512108200b0044aa6be090bmr2827259lfg.45.1649963985288; Thu, 14 Apr 2022 12:19:45 -0700 (PDT) Received: from otyshchenko.router ([212.22.223.21]) by smtp.gmail.com with ESMTPSA id l3-20020a194943000000b0046b928d2795sm85001lfj.67.2022.04.14.12.19.44 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 14 Apr 2022 12:19:44 -0700 (PDT) From: Oleksandr Tyshchenko To: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Oleksandr Tyshchenko , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , Julien Grall Subject: [RFC PATCH 6/6] arm/xen: Assign xen-virtio DMA ops for virtio devices in Xen guests Date: Thu, 14 Apr 2022 22:19:33 +0300 Message-Id: <1649963973-22879-7-git-send-email-olekstysh@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1649963973-22879-1-git-send-email-olekstysh@gmail.com> References: <1649963973-22879-1-git-send-email-olekstysh@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Oleksandr Tyshchenko Call xen_virtio_setup_dma_ops() only for Xen-aware virtio devices in Xen guests if restricted access to the guest memory is enabled. Signed-off-by: Oleksandr Tyshchenko --- include/xen/arm/xen-ops.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/xen/arm/xen-ops.h b/include/xen/arm/xen-ops.h index 621da05..28b2ad3 100644 --- a/include/xen/arm/xen-ops.h +++ b/include/xen/arm/xen-ops.h @@ -2,12 +2,19 @@ #ifndef _ASM_ARM_XEN_OPS_H #define _ASM_ARM_XEN_OPS_H +#include #include +#include static inline void xen_setup_dma_ops(struct device *dev) { if (xen_swiotlb_detect()) dev->dma_ops = &xen_swiotlb_dma_ops; + +#ifdef CONFIG_XEN_VIRTIO + if (arch_has_restricted_virtio_memory_access() && xen_is_virtio_device(dev)) + xen_virtio_setup_dma_ops(dev); +#endif } #endif /* _ASM_ARM_XEN_OPS_H */ -- 2.7.4