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GET /api/patches/2202630/?format=api
{ "id": 2202630, "url": "http://patchwork.ozlabs.org/api/patches/2202630/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260227221632.827046-7-vivek.kasireddy@intel.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260227221632.827046-7-vivek.kasireddy@intel.com>", "list_archive_url": null, "date": "2026-02-27T22:13:52", "name": "[v8,06/10] vfio/region: Add a helper to get region index from memory region", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "42e8e6eee5de310c2e9379596b51bdb8ff9aff69", "submitter": { "id": 81116, "url": "http://patchwork.ozlabs.org/api/people/81116/?format=api", "name": "Vivek Kasireddy", "email": "vivek.kasireddy@intel.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260227221632.827046-7-vivek.kasireddy@intel.com/mbox/", "series": [ { "id": 493824, "url": "http://patchwork.ozlabs.org/api/series/493824/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=493824", "date": "2026-02-27T22:13:46", "name": "vfio: Create dmabuf from multiple VFIO ranges and use it in virtio-gpu", "version": 8, "mbox": "http://patchwork.ozlabs.org/series/493824/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2202630/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2202630/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256\n header.s=Intel header.b=jWX+YxZF;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fN2qN6YdYz1xxx\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 28 Feb 2026 09:21:36 +1100 (AEDT)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1vw6Bg-00066Q-Kq; Fri, 27 Feb 2026 17:19:56 -0500", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <vivek.kasireddy@intel.com>)\n id 1vw6Be-00065d-Rn\n for qemu-devel@nongnu.org; Fri, 27 Feb 2026 17:19:54 -0500", "from mgamail.intel.com ([198.175.65.16])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <vivek.kasireddy@intel.com>)\n id 1vw6Bc-0007m5-Rs\n for qemu-devel@nongnu.org; Fri, 27 Feb 2026 17:19:54 -0500", "from fmviesa003.fm.intel.com ([10.60.135.143])\n by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 27 Feb 2026 14:19:40 -0800", "from vkasired-desk2.fm.intel.com ([10.105.128.132])\n by fmviesa003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 27 Feb 2026 14:19:40 -0800" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple;\n d=intel.com; i=@intel.com; q=dns/txt; s=Intel;\n t=1772230793; x=1803766793;\n h=from:to:cc:subject:date:message-id:in-reply-to:\n references:mime-version:content-transfer-encoding;\n bh=1TEvr2QnTOUFzPzfTMXk5IYYw/2XkOgNrkkXD+yNNs8=;\n b=jWX+YxZF9oZ0sHJU/ZZtQG3NrNVP45QQZgM4ujiZdEbUAQHohm+feQaj\n i5CEwgzjQ9kS3arVd157iJZKfOcBa8KhNGRoHedfPmdv5Dm77KPGEFceE\n pzRCieVPqSOfAUxanPQ7ier9Tof+kaVJkMxtfl3KCQTS3e9M+xsMNyr0Z\n SJgup/lHAWCeoLUtyiZ99LOgLEQ3sIKfzGnNvoGTag2R2f/ldapHvh7tF\n n/7LT/Z+VUDvBln5R4KZTKo6mMtXP7UntY4NnHVUURlroJfcFwTj1IDZA\n 0iQWb9FrXi2xv0VdDJfTVvqn1FGA3Z89IsmvzNGY/dQMwvVg3mHo/7yUe A==;", "X-CSE-ConnectionGUID": [ "xPmSqLe+RFS5W/Lv02QaXw==", "ngiM56JrSku0IbSq7n/khA==" ], "X-CSE-MsgGUID": [ "1AZoSu+hQyqGNY5d9W8pUg==", "pIvaOOQPTnSlEQbyT42hqA==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6800,10657,11714\"; a=\"73509354\"", "E=Sophos;i=\"6.21,314,1763452800\"; d=\"scan'208\";a=\"73509354\"" ], "X-ExtLoop1": "1", "From": "Vivek Kasireddy <vivek.kasireddy@intel.com>", "To": "qemu-devel@nongnu.org", "Cc": "Vivek Kasireddy <vivek.kasireddy@intel.com>,\n Alex Williamson <alex@shazbot.org>,\n =?utf-8?q?C=C3=A9dric_Le_Goater?= <clg@redhat.com>", "Subject": "[PATCH v8 06/10] vfio/region: Add a helper to get region index from\n memory region", "Date": "Fri, 27 Feb 2026 14:13:52 -0800", "Message-ID": "<20260227221632.827046-7-vivek.kasireddy@intel.com>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260227221632.827046-1-vivek.kasireddy@intel.com>", "References": "<20260227221632.827046-1-vivek.kasireddy@intel.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=198.175.65.16;\n envelope-from=vivek.kasireddy@intel.com; helo=mgamail.intel.com", "X-Spam_score_int": "-32", "X-Spam_score": "-3.3", "X-Spam_bar": "---", "X-Spam_report": "(-3.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.706,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.401, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Having a way to figure out the region index (or bar) associated\nwith a memory region is helpful in various scenarios. For example,\nthis capability can be useful in retrieving the region info needed\nfor mapping a part of a VFIO region or creating a dmabuf.\n\nCc: Alex Williamson <alex@shazbot.org>\nCc: Cédric Le Goater <clg@redhat.com>\nSigned-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>\n---\n hw/vfio/region.c | 14 ++++++++++++++\n include/hw/vfio/vfio-device.h | 10 ++++++++++\n 2 files changed, 24 insertions(+)", "diff": "diff --git a/hw/vfio/region.c b/hw/vfio/region.c\nindex 47fdc2df34..4cb92216ef 100644\n--- a/hw/vfio/region.c\n+++ b/hw/vfio/region.c\n@@ -539,3 +539,17 @@ void vfio_region_mmaps_set_enabled(VFIORegion *region, bool enabled)\n trace_vfio_region_mmaps_set_enabled(memory_region_name(region->mem),\n enabled);\n }\n+\n+int vfio_get_region_index_from_mr(MemoryRegion *mr)\n+{\n+ VFIORegion *region;\n+\n+ while (mr->container) {\n+ if (mr->ops == &vfio_region_ops) {\n+ region = mr->opaque;\n+ return region->nr;\n+ }\n+ mr = mr->container;\n+ }\n+ return -1;\n+}\ndiff --git a/include/hw/vfio/vfio-device.h b/include/hw/vfio/vfio-device.h\nindex 828a31c006..596c7f5a10 100644\n--- a/include/hw/vfio/vfio-device.h\n+++ b/include/hw/vfio/vfio-device.h\n@@ -308,6 +308,16 @@ bool vfio_device_has_region_cap(VFIODevice *vbasedev, int region, uint16_t cap_t\n \n int vfio_device_get_irq_info(VFIODevice *vbasedev, int index,\n struct vfio_irq_info *info);\n+\n+/**\n+ * Return the region index associated with a given MemoryRegion. The index\n+ * can be useful in retrieving region info.\n+ *\n+ * @mr: MemoryRegion to use\n+ *\n+ * Returns the region index or -1 on error.\n+ */\n+int vfio_get_region_index_from_mr(MemoryRegion *mr);\n #endif\n \n /* Returns 0 on success, or a negative errno. */\n", "prefixes": [ "v8", "06/10" ] }