From patchwork Thu Oct 8 17:15:51 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: 11824263 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 0F2E713B2 for ; Thu, 8 Oct 2020 17:20:27 +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 99D18221FD for ; Thu, 8 Oct 2020 17:20:26 +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="eoIzj+ky" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 99D18221FD 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]:58350 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kQZab-0001PT-ED for patchwork-qemu-devel@patchwork.kernel.org; Thu, 08 Oct 2020 13:20:25 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50558) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kQZXC-0004iV-Mi for qemu-devel@nongnu.org; Thu, 08 Oct 2020 13:16:54 -0400 Received: from mail-wr1-x443.google.com ([2a00:1450:4864:20::443]:33632) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kQZXA-0006eK-S2 for qemu-devel@nongnu.org; Thu, 08 Oct 2020 13:16:54 -0400 Received: by mail-wr1-x443.google.com with SMTP id m6so7473227wrn.0 for ; Thu, 08 Oct 2020 10:16:52 -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=sY2gqdsWkBuC1sxr+Mc5QVPkGv0Pgw0vmK023u1HBuc=; b=eoIzj+ky+pMBGTHy3Jp4GnEMiUPXXAeYrO6omxTuH5UjMdyduCUAuQbD+isZgYVypO +WEKD2IqKrLJccgkCcmntOfU/jUJx0bK1+cojk9oEhF1IAzhsKAS3Bm65xzscAi1cyYX lCJdiSrZy+ZEA01rQonPassj9SO0rCD7bT52JYHkK8lNp3kVNEUsL67rOI5si4f/e7l4 yiSimzyxXZzSQF7ShWaMdIy0pZ5yDGgJzuBOwWQPqUvn3/9PuXKqV6eVMScnzljD5ehD A02yZ7QbiY11YDDU096GAnbsK60Hzf1jphWCArjSxyGf5y9b1lhD6lpDOpXB8Ijt4ATk Z6ag== 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=sY2gqdsWkBuC1sxr+Mc5QVPkGv0Pgw0vmK023u1HBuc=; b=qCwHnHaPL/Q4isWzuGWDixs6Tb8nL36SabvZMkdEzl3Pep8Oi929h18ZP3bzPCGJXT B4Ku/WKKDWUpfJGXtkvki7FpJPn7MsTN1Aeyb03RtdiNnfamIkBY1bZG1Nq9cwQLECuT PS3gFKWiWBdZ5aqLtqPfhYnoNh33RLgZ5YRU7JvrHwK7OxMg3kWU2Yn9fsG4WSbLNxYF snQ/ATTBKMA6vxzFkwmeZPXst88wfOLDOSiAQq21n64fk6mf/3PVxr5drvDGGBMY6Wf+ L9ZQzJVZ4zc8JOf+Xu/Fx0gN3z5Gx+YMMe3eMq+O8ej0CQE36/Jyi68Q0KOLnQo/e+2o uBUA== X-Gm-Message-State: AOAM533aEcQRqSXWsKHXaYhmPWQuhk3VWVDxr+Pz7BWgej+U3Q+AEmyV Fod4ckeoNWI3h25OJo6mB8xpkw== X-Google-Smtp-Source: ABdhPJzHEesWpc8s+O1FhavdOedGl7qTR5WFSSwbEw7s3JLpgll1m4MYOpAsADYrTPV9qP7ZMG+wzQ== X-Received: by 2002:adf:ec92:: with SMTP id z18mr11265072wrn.53.1602177411646; Thu, 08 Oct 2020 10:16:51 -0700 (PDT) Received: from localhost.localdomain ([2001:1715:4e26:a7e0:116c:c27a:3e7f:5eaf]) by smtp.gmail.com with ESMTPSA id x1sm719413wrl.41.2020.10.08.10.16.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Oct 2020 10:16:51 -0700 (PDT) From: Jean-Philippe Brucker To: eric.auger@redhat.com, alex.williamson@redhat.com Subject: [PATCH v10 03/10] virtio-iommu: Add memory notifiers for map/unmap Date: Thu, 8 Oct 2020 19:15:51 +0200 Message-Id: <20201008171558.410886-4-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::443; envelope-from=jean-philippe@linaro.org; helo=mail-wr1-x443.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 Extend VIRTIO_IOMMU_T_MAP/UNMAP request to notify memory listeners. It will call VFIO notifier to map/unmap regions in the physical IOMMU. Signed-off-by: Bharat Bhushan Signed-off-by: Eric Auger Signed-off-by: Jean-Philippe Brucker --- v10: * Use the flags from IOMMUMemoryRegion * Pass virt_start/virt_end rather than size, to avoid dealing with overflow and for consistency. --- hw/virtio/virtio-iommu.c | 53 ++++++++++++++++++++++++++++++++++++++++ hw/virtio/trace-events | 2 ++ 2 files changed, 55 insertions(+) diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c index 33115e82186..fcdf3a819f8 100644 --- a/hw/virtio/virtio-iommu.c +++ b/hw/virtio/virtio-iommu.c @@ -125,6 +125,49 @@ static gint interval_cmp(gconstpointer a, gconstpointer b, gpointer user_data) } } +static void virtio_iommu_notify_map(IOMMUMemoryRegion *mr, hwaddr virt_start, + hwaddr virt_end, hwaddr paddr) +{ + IOMMUTLBEntry entry; + IOMMUNotifierFlag flags = mr->iommu_notify_flags; + + if (!(flags & IOMMU_NOTIFIER_MAP)) { + return; + } + + trace_virtio_iommu_notify_map(mr->parent_obj.name, virt_start, virt_end, + paddr); + + entry.target_as = &address_space_memory; + entry.addr_mask = virt_end - virt_start; + entry.iova = virt_start; + entry.perm = IOMMU_RW; + entry.translated_addr = paddr; + + memory_region_notify_iommu(mr, 0, entry); +} + +static void virtio_iommu_notify_unmap(IOMMUMemoryRegion *mr, hwaddr virt_start, + hwaddr virt_end) +{ + IOMMUTLBEntry entry; + IOMMUNotifierFlag flags = mr->iommu_notify_flags; + + if (!(flags & IOMMU_NOTIFIER_UNMAP)) { + return; + } + + trace_virtio_iommu_notify_unmap(mr->parent_obj.name, virt_start, virt_end); + + entry.target_as = &address_space_memory; + entry.addr_mask = virt_end - virt_start; + entry.iova = virt_start; + entry.perm = IOMMU_NONE; + entry.translated_addr = 0; + + memory_region_notify_iommu(mr, 0, entry); +} + static void virtio_iommu_detach_endpoint_from_domain(VirtIOIOMMUEndpoint *ep) { if (!ep->domain) { @@ -315,6 +358,7 @@ static int virtio_iommu_map(VirtIOIOMMU *s, VirtIOIOMMUDomain *domain; VirtIOIOMMUInterval *interval; VirtIOIOMMUMapping *mapping; + VirtIOIOMMUEndpoint *ep; if (flags & ~VIRTIO_IOMMU_MAP_F_MASK) { return VIRTIO_IOMMU_S_INVAL; @@ -344,6 +388,10 @@ static int virtio_iommu_map(VirtIOIOMMU *s, g_tree_insert(domain->mappings, interval, mapping); + QLIST_FOREACH(ep, &domain->endpoint_list, next) { + virtio_iommu_notify_map(ep->iommu_mr, virt_start, virt_end, phys_start); + } + return VIRTIO_IOMMU_S_OK; } @@ -356,6 +404,7 @@ static int virtio_iommu_unmap(VirtIOIOMMU *s, VirtIOIOMMUMapping *iter_val; VirtIOIOMMUInterval interval, *iter_key; VirtIOIOMMUDomain *domain; + VirtIOIOMMUEndpoint *ep; int ret = VIRTIO_IOMMU_S_OK; trace_virtio_iommu_unmap(domain_id, virt_start, virt_end); @@ -373,6 +422,10 @@ static int virtio_iommu_unmap(VirtIOIOMMU *s, uint64_t current_high = iter_key->high; if (interval.low <= current_low && interval.high >= current_high) { + QLIST_FOREACH(ep, &domain->endpoint_list, next) { + virtio_iommu_notify_unmap(ep->iommu_mr, current_low, + current_high); + } g_tree_remove(domain->mappings, iter_key); trace_virtio_iommu_unmap_done(domain_id, current_low, current_high); } else { diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events index cf1e59de302..65a48555c78 100644 --- a/hw/virtio/trace-events +++ b/hw/virtio/trace-events @@ -106,6 +106,8 @@ virtio_iommu_put_domain(uint32_t domain_id) "Free domain=%d" virtio_iommu_translate_out(uint64_t virt_addr, uint64_t phys_addr, uint32_t sid) "0x%"PRIx64" -> 0x%"PRIx64 " for sid=%d" virtio_iommu_report_fault(uint8_t reason, uint32_t flags, uint32_t endpoint, uint64_t addr) "FAULT reason=%d flags=%d endpoint=%d address =0x%"PRIx64 virtio_iommu_fill_resv_property(uint32_t devid, uint8_t subtype, uint64_t start, uint64_t end) "dev= %d, type=%d start=0x%"PRIx64" end=0x%"PRIx64 +virtio_iommu_notify_map(const char *name, uint64_t virt_start, uint64_t virt_end, uint64_t phys_start) "mr=%s virt_start=0x%"PRIx64" virt_end=0x%"PRIx64" phys_start=0x%"PRIx64 +virtio_iommu_notify_unmap(const char *name, uint64_t virt_start, uint64_t virt_end) "mr=%s virt_start=0x%"PRIx64" virt_end=0x%"PRIx64 # virtio-mem.c virtio_mem_send_response(uint16_t type) "type=%" PRIu16