From patchwork Thu Oct 8 17:15:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Philippe Brucker X-Patchwork-Id: 11824267 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4D1056CA for ; Thu, 8 Oct 2020 17:22:51 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id EF273221FF for ; Thu, 8 Oct 2020 17:22:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="cQhGCYAk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EF273221FF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:37656 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kQZcv-0004bc-QG for patchwork-qemu-devel@patchwork.kernel.org; Thu, 08 Oct 2020 13:22:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50570) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kQZXD-0004jh-JJ for qemu-devel@nongnu.org; Thu, 08 Oct 2020 13:16:55 -0400 Received: from mail-wm1-x343.google.com ([2a00:1450:4864:20::343]:34342) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kQZXC-0006eV-14 for qemu-devel@nongnu.org; Thu, 08 Oct 2020 13:16:55 -0400 Received: by mail-wm1-x343.google.com with SMTP id l15so7216271wmh.1 for ; Thu, 08 Oct 2020 10:16:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=MBcMMP4Ua2k2Hsawb+KgncwLSiAkybM0QPyQamrDzng=; b=cQhGCYAksbtlKV5fVTngQBBHJnM5wvHFTUnjin/wrRSyu3dp/V4Ru57dsLeZS8ntIm 8W68x4aLKaDH+zJstPU/eSxmZkiOu2TI99X2+ppDEUFFtdxo0QHu7D/cN8OvpLANd1tj TS1pIn0zokptu7dCp3mYJkVLkFEjh7g/IfgczAqw9l1TeVHJh+3HmO4/NiyobhiDqiyH xGqpHrFjOPYXQ60WznRuJdfFSS12VY7ljTEYqbuaMUhUbyIluFVlrG8Vp3QpqCy1nWdS I1fdgg1Hg7GX+XBNFe66WA9oQXqwdX+RrdwOnhmwkCJw7Lmy9FkHErH0EyED5tLEoput p1Fg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=MBcMMP4Ua2k2Hsawb+KgncwLSiAkybM0QPyQamrDzng=; b=P6Qi6YyCSrDM6YrYBDKizS7IhFfPhpwvuHhtQCMKyu3oP0vCZgsTfSQIchVOH2MMbl QoXNbBEBXA7xRUpyp+7yfJZMGcyfMLbtxUrKNMfA/LQrAJECcK8+zf7y6vBuAfcYeOsM 4u93RXmKJg2iTTo0Ngk/oJNbWgfwKdlXp4KF/r06p9Qhg211Rp/lC5t0zB/r04Ly1+V0 gmcD0lEkZODgoXrlhebJs33bda+x7pQs6M9IbavrHhzLtXc1vvrx0hsJaNuKR45+c1t5 GPT7qAaawBitGtTU9u5GFC3Y26Xu/fXU26lgk21AfMXzGm+jABhjb1z+7Gn7jVFZ4Qsw fBTw== X-Gm-Message-State: AOAM532XK+iuG7Jk8Ol9Y5HhCiKS2u/QZybE8nxY8wvR8bldvprMNEPT N4UY3vWlLsix3re1u8pOuxVlMQ== X-Google-Smtp-Source: ABdhPJwZyBPp/LT5cmBkbGm2v3+sMkXAaevxR/o2y+UkDgTmn3IJiSXmrkWUggS6ci2wWNB4Qrxg3A== X-Received: by 2002:a7b:c92c:: with SMTP id h12mr9138951wml.134.1602177412717; Thu, 08 Oct 2020 10:16:52 -0700 (PDT) Received: from localhost.localdomain ([2001:1715:4e26:a7e0:116c:c27a:3e7f:5eaf]) by smtp.gmail.com with ESMTPSA id x1sm719413wrl.41.2020.10.08.10.16.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Oct 2020 10:16:52 -0700 (PDT) From: Jean-Philippe Brucker To: eric.auger@redhat.com, alex.williamson@redhat.com Subject: [PATCH v10 04/10] virtio-iommu: Call memory notifiers in attach/detach Date: Thu, 8 Oct 2020 19:15:52 +0200 Message-Id: <20201008171558.410886-5-jean-philippe@linaro.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201008171558.410886-1-jean-philippe@linaro.org> References: <20201008171558.410886-1-jean-philippe@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::343; envelope-from=jean-philippe@linaro.org; helo=mail-wm1-x343.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: Jean-Philippe Brucker , mst@redhat.com, qemu-devel@nongnu.org, peterx@redhat.com, pbonzini@redhat.com, bbhushan2@marvell.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: Bharat Bhushan Call the memory notifiers when attaching an endpoint to a domain, to replay existing mappings, and when detaching the endpoint, to remove all mappings. Signed-off-by: Bharat Bhushan Signed-off-by: Jean-Philippe Brucker --- v10: Remove notifiers_list, rename callbacks --- hw/virtio/virtio-iommu.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c index fcdf3a819f8..7e6e3cf5200 100644 --- a/hw/virtio/virtio-iommu.c +++ b/hw/virtio/virtio-iommu.c @@ -168,11 +168,39 @@ static void virtio_iommu_notify_unmap(IOMMUMemoryRegion *mr, hwaddr virt_start, memory_region_notify_iommu(mr, 0, entry); } +static gboolean virtio_iommu_notify_unmap_cb(gpointer key, gpointer value, + gpointer data) +{ + VirtIOIOMMUInterval *interval = (VirtIOIOMMUInterval *) key; + IOMMUMemoryRegion *mr = (IOMMUMemoryRegion *) data; + + virtio_iommu_notify_unmap(mr, interval->low, interval->high); + + return false; +} + +static gboolean virtio_iommu_notify_map_cb(gpointer key, gpointer value, + gpointer data) +{ + VirtIOIOMMUMapping *mapping = (VirtIOIOMMUMapping *) value; + VirtIOIOMMUInterval *interval = (VirtIOIOMMUInterval *) key; + IOMMUMemoryRegion *mr = (IOMMUMemoryRegion *) data; + + virtio_iommu_notify_map(mr, interval->low, interval->high, + mapping->phys_addr); + + return false; +} + static void virtio_iommu_detach_endpoint_from_domain(VirtIOIOMMUEndpoint *ep) { + VirtIOIOMMUDomain *domain = ep->domain; + if (!ep->domain) { return; } + g_tree_foreach(domain->mappings, virtio_iommu_notify_unmap_cb, + ep->iommu_mr); QLIST_REMOVE(ep, next); ep->domain = NULL; } @@ -315,6 +343,10 @@ static int virtio_iommu_attach(VirtIOIOMMU *s, ep->domain = domain; + /* Replay domain mappings on the associated memory region */ + g_tree_foreach(domain->mappings, virtio_iommu_notify_map_cb, + ep->iommu_mr); + return VIRTIO_IOMMU_S_OK; }