From patchwork Mon Apr 24 11:21:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Viktor Prutyanov X-Patchwork-Id: 13222041 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 A12E8C77B61 for ; Mon, 24 Apr 2023 11:23:02 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pquGw-0000rE-KU; Mon, 24 Apr 2023 07:22:18 -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 1pquGr-0000p1-7V for qemu-devel@nongnu.org; Mon, 24 Apr 2023 07:22:15 -0400 Received: from mail-lf1-x12d.google.com ([2a00:1450:4864:20::12d]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pquGl-00056f-Mx for qemu-devel@nongnu.org; Mon, 24 Apr 2023 07:22:13 -0400 Received: by mail-lf1-x12d.google.com with SMTP id 2adb3069b0e04-4edc63c82d1so4378389e87.0 for ; Mon, 24 Apr 2023 04:22:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=daynix-com.20221208.gappssmtp.com; s=20221208; t=1682335319; x=1684927319; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=CwD/L5o2/pRtObZ6GaVbf9uZzAG747kqUQpZ52beJ+0=; b=YbPswaCEfTvIyRqScUWXa3VJwc0ZVesbG/XWWU24qY5AL2guxiWI7ZcPEQZhnO3wLa /lUi8CyxJMa2TdGeHvMow/dJxGY6RCTUK3gAZSgs7hKCEyPI73MgHrzC5P63hbgSzEM8 8AX7ssrM4BVsqtCBAQ+R9+L7VFvsj6NrK9sPTLYAxqkaT4fDHIMbVz3cSi1XeMck2JD7 SvIYaQF43fuY+wfO3qxWgWxYqvjlPJqTbUuSRtI9HKm8Mqx4o8vVqsfW7p6WQ92xqWRG wwY4w1ge7Ey1jMEGFLXsOSKi90Zi/OXMZgFvd7GahsqrrGU86aQeTrSW0XLlRCnt0daq qkeA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682335319; x=1684927319; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=CwD/L5o2/pRtObZ6GaVbf9uZzAG747kqUQpZ52beJ+0=; b=Vz0lVKec3PzxmwJgcWM20PvJayC6vr6mDhta6aHbkHZYcJJyqiR7A/ycXmYfS3XdtA HqbCxwB3DFw4/0GDOWaGucOJmAkdgAHIrcpaEwRwElloSoARgkfJn9YgZvPw9es4RLrv FZ8NoLAPUTf1xWJXeKpTSrd5nTcUE83eSsTjX7KO9qcXx+DkPI3HovIIi6L95lpmFaGv tqvMXI6woutMXH94JSFb83f0or7UQYBGknBtB5bkgvNPWWnoXxOb1wKdMO4KBIaY6VjM mtmm9ji6M5QL0DRJ05MfkhC2WE/PrG1YQX6AdpE7O1xdpFtOPq3L0JOSYCwYK+3D3dWp +yLA== X-Gm-Message-State: AAQBX9dd6cplTIs20fMJ1breqdi3Rb9iks9L/Awhi1Ql/ecxlQS8Zn8/ yWRgtF9vrnCQUzqWnJWPII8wwA== X-Google-Smtp-Source: AKy350awPhHPM3dijDynX5CBhrdIcVS7YvxvZwmZ4BtQR1BcfHKRceZHhwCaxDuEluyb5aDJJyJA/Q== X-Received: by 2002:ac2:5ecf:0:b0:4ec:a786:1f23 with SMTP id d15-20020ac25ecf000000b004eca7861f23mr3419143lfq.59.1682335319416; Mon, 24 Apr 2023 04:21:59 -0700 (PDT) Received: from localhost.localdomain ([80.250.80.22]) by smtp.gmail.com with ESMTPSA id j1-20020a19f501000000b004eff0bcb276sm415542lfb.7.2023.04.24.04.21.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Apr 2023 04:21:58 -0700 (PDT) From: Viktor Prutyanov To: mst@redhat.com, jasowang@redhat.com, marcel.apfelbaum@gmail.com, pbonzini@redhat.com, peterx@redhat.com, david@redhat.com Cc: philmd@linaro.org, qemu-devel@nongnu.org, yan@daynix.com, yuri.benditovich@daynix.com, Viktor Prutyanov Subject: [RFC PATCH 3/4] memory: add interface for triggering IOMMU notify_flag_changed handler Date: Mon, 24 Apr 2023 14:21:46 +0300 Message-Id: <20230424112147.17083-4-viktor@daynix.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20230424112147.17083-1-viktor@daynix.com> References: <20230424112147.17083-1-viktor@daynix.com> MIME-Version: 1.0 Received-SPF: none client-ip=2a00:1450:4864:20::12d; envelope-from=viktor@daynix.com; helo=mail-lf1-x12d.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This interface helps if IOMMU notify_flag_changed should be triggered after changing IOMMU notifier flags in the runtime. Signed-off-by: Viktor Prutyanov --- include/exec/memory.h | 2 ++ softmmu/memory.c | 12 ++++++++++++ 2 files changed, 14 insertions(+) diff --git a/include/exec/memory.h b/include/exec/memory.h index 2e602a2fad..c8d5f69add 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -1772,6 +1772,8 @@ void memory_region_iommu_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n); void memory_region_unregister_iommu_notifier(MemoryRegion *mr, IOMMUNotifier *n); +void memory_region_iommu_notify_flags_changed(MemoryRegion *mr); + /** * memory_region_iommu_get_attr: return an IOMMU attr if get_attr() is * defined on the IOMMU. diff --git a/softmmu/memory.c b/softmmu/memory.c index 9d64efca26..e4a53cde6c 100644 --- a/softmmu/memory.c +++ b/softmmu/memory.c @@ -1950,6 +1950,18 @@ void memory_region_iommu_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n) } } +void memory_region_iommu_notify_flags_changed(MemoryRegion *mr) +{ + IOMMUMemoryRegion *iommu_mr; + + if (mr->alias) { + memory_region_iommu_notify_flags_changed(mr->alias); + return; + } + iommu_mr = IOMMU_MEMORY_REGION(mr); + memory_region_update_iommu_notify_flags(iommu_mr, NULL); +} + void memory_region_unregister_iommu_notifier(MemoryRegion *mr, IOMMUNotifier *n) {