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GET /api/patches/1151/?format=api
{ "id": 1151, "url": "https://patches.dpdk.org/api/patches/1151/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/1415272471-3299-2-git-send-email-mukawa@igel.co.jp/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<1415272471-3299-2-git-send-email-mukawa@igel.co.jp>", "list_archive_url": "https://inbox.dpdk.org/dev/1415272471-3299-2-git-send-email-mukawa@igel.co.jp", "date": "2014-11-06T11:14:25", "name": "[dpdk-dev,RFC,1/7] lib/librte_vhost: Fix host_memory_map() to handle various memory regions", "commit_ref": null, "pull_url": null, "state": "rfc", "archived": true, "hash": "4216ac1499a7b4fc505df5cf7d6407b2cefbcc22", "submitter": { "id": 64, "url": "https://patches.dpdk.org/api/people/64/?format=api", "name": "Tetsuya Mukawa", "email": "mukawa@igel.co.jp" }, "delegate": null, "mbox": "https://patches.dpdk.org/project/dpdk/patch/1415272471-3299-2-git-send-email-mukawa@igel.co.jp/mbox/", "series": [], "comments": "https://patches.dpdk.org/api/patches/1151/comments/", "check": "pending", "checks": "https://patches.dpdk.org/api/patches/1151/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id 09A137F2C;\n\tThu, 6 Nov 2014 12:05:41 +0100 (CET)", "from mail-pd0-f180.google.com (mail-pd0-f180.google.com\n\t[209.85.192.180]) by dpdk.org (Postfix) with ESMTP id 7D3417E80\n\tfor <dev@dpdk.org>; Thu, 6 Nov 2014 12:05:30 +0100 (CET)", "by mail-pd0-f180.google.com with SMTP id ft15so968320pdb.11\n\tfor <dev@dpdk.org>; Thu, 06 Nov 2014 03:14:57 -0800 (PST)", "from localhost.localdomain (napt.igel.co.jp. [219.106.231.132])\n\tby mx.google.com with ESMTPSA id\n\tjc3sm5652315pbb.49.2014.11.06.03.14.55 for <multiple recipients>\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128);\n\tThu, 06 Nov 2014 03:14:56 -0800 (PST)" ], "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20130820;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n\t:references;\n\tbh=01y779PhVDx7SPuAyiXbzChZosjWT8AlGNRlbdDGaaw=;\n\tb=WT2lgd715OOrFjgrDk6Hz+PkLILIEpkqXCpcOVIjnLn1sIph5y4Bw+lkQUVDSImXPt\n\to50DcUgb31TbOVJKa8zNN83fBSmwbKQBwTNgfx9iamIM59fCGPSNPbyPYyp8Zwj+ltc8\n\ttm8xceNMxYlPCMOxG1rhazU0SR6x4HZqlY/rt+sIDxJX/8DQ9P45mEw7sFXpOIn69wMr\n\tEn6RsqlUlpZ4H9HSopbEltPNeW89iacau3STrTNDZaLi6R9M/2Xzyp7U00JIKwUjl+Eq\n\tpVpmfTi9gFGAgMw69C5nYB48SgPrkdVjLKSnwK3Er2mDgHpBOCSGGnvZur8VgsaplOGk\n\t29KQ==", "X-Gm-Message-State": "ALoCoQmKH07dDxCvYFam2JYvvi23BehJpJ0wZ0lSIVWM7AuFf+BdwP5fOglJkXO48Pvp0RxBXje3", "X-Received": "by 10.68.213.8 with SMTP id no8mr3749548pbc.92.1415272497152;\n\tThu, 06 Nov 2014 03:14:57 -0800 (PST)", "From": "Tetsuya Mukawa <mukawa@igel.co.jp>", "To": "dev@dpdk.org", "Date": "Thu, 6 Nov 2014 20:14:25 +0900", "Message-Id": "<1415272471-3299-2-git-send-email-mukawa@igel.co.jp>", "X-Mailer": "git-send-email 1.9.1", "In-Reply-To": "<1415272471-3299-1-git-send-email-mukawa@igel.co.jp>", "References": "<1415272471-3299-1-git-send-email-mukawa@igel.co.jp>", "Cc": "nakajima.yoshihiro@lab.ntt.co.jp, masutani.hitoshi@lab.ntt.co.jp", "Subject": "[dpdk-dev] [RFC PATCH 1/7] lib/librte_vhost: Fix host_memory_map()\n\tto handle various memory regions", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "patches and discussions about DPDK <dev.dpdk.org>", "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://dpdk.org/ml/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Without this patch, host_memory_map() can only handle a region that\nexists on head of a guest physical memory. The patch fixes the\nhost_memory_map() to handle regions exist on middle of the physical memory.\n\nSigned-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>\n---\n lib/librte_vhost/virtio-net.c | 7 ++++---\n 1 file changed, 4 insertions(+), 3 deletions(-)", "diff": "diff --git a/lib/librte_vhost/virtio-net.c b/lib/librte_vhost/virtio-net.c\nindex 8015dd8..9155a68 100644\n--- a/lib/librte_vhost/virtio-net.c\n+++ b/lib/librte_vhost/virtio-net.c\n@@ -83,6 +83,7 @@ const uint32_t BUFSIZE = PATH_MAX;\n /* Structure containing information gathered from maps file. */\n struct procmap {\n \tuint64_t\tva_start;\t/* Start virtual address in file. */\n+\tuint64_t\tva_end;\t\t/* End virtual address in file. */\n \tuint64_t\tlen;\t\t/* Size of file. */\n \tuint64_t\tpgoff;\t\t/* Not used. */\n \tuint32_t\tmaj;\t\t/* Not used. */\n@@ -176,7 +177,7 @@ host_memory_map(struct virtio_net *dev, struct virtio_memory *mem,\n \t\t\treturn -1;\n \t\t}\n \n-\t\tprocmap.len = strtoull(in[1], &end, 16);\n+\t\tprocmap.va_end = strtoull(in[1], &end, 16);\n \t\tif ((in[1] == '\\0') || (end == NULL) || (*end != '\\0') || (errno != 0)) {\n \t\t\tfclose(fmap);\n \t\t\treturn -1;\n@@ -209,8 +210,8 @@ host_memory_map(struct virtio_net *dev, struct virtio_memory *mem,\n \t\tmemcpy(&procmap.prot, in[2], PROT_SZ);\n \t\tmemcpy(&procmap.fname, in[7], PATH_MAX);\n \n-\t\tif (procmap.va_start == addr) {\n-\t\t\tprocmap.len = procmap.len - procmap.va_start;\n+\t\tif ((procmap.va_start <= addr) && (procmap.va_end >= addr)) {\n+\t\t\tprocmap.len = procmap.va_end - procmap.va_start;\n \t\t\tfound = 1;\n \t\t\tbreak;\n \t\t}\n", "prefixes": [ "dpdk-dev", "RFC", "1/7" ] }