{"id":818543,"url":"http://patchwork.ozlabs.org/api/patches/818543/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/150642391353.3900.18119086556871785903.stgit@Misha-PC.lan02.inno/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/projects/14/?format=json","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":"<150642391353.3900.18119086556871785903.stgit@Misha-PC.lan02.inno>","list_archive_url":null,"date":"2017-09-26T11:05:13","name":"[12/43] windbg: send data and control packets","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"df2369e00a5f914d3b8fc49a929cdfe8a99017bf","submitter":{"id":71645,"url":"http://patchwork.ozlabs.org/api/people/71645/?format=json","name":"Mikhail Abakumov","email":"mikhail.abakumov@ispras.ru"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/150642391353.3900.18119086556871785903.stgit@Misha-PC.lan02.inno/mbox/","series":[{"id":5104,"url":"http://patchwork.ozlabs.org/api/series/5104/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=5104","date":"2017-09-26T11:04:06","name":"Windbg supporting","version":1,"mbox":"http://patchwork.ozlabs.org/series/5104/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/818543/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/818543/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=)","Received":["from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3y1dbP0VNRz9t3Z\n\tfor ;\n\tTue, 26 Sep 2017 21:12:49 +1000 (AEST)","from localhost ([::1]:46729 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t)\n\tid 1dwnnD-0001Nt-0I\n\tfor incoming@patchwork.ozlabs.org; Tue, 26 Sep 2017 07:12:47 -0400","from eggs.gnu.org ([2001:4830:134:3::10]:59232)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from ) id 1dwnfz-0003l5-9s\n\tfor qemu-devel@nongnu.org; Tue, 26 Sep 2017 07:05:20 -0400","from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from ) id 1dwnfv-0000dT-V3\n\tfor qemu-devel@nongnu.org; Tue, 26 Sep 2017 07:05:19 -0400","from mail.ispras.ru ([83.149.199.45]:51840)\n\tby eggs.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from ) id 1dwnfv-0000cI-OC\n\tfor qemu-devel@nongnu.org; Tue, 26 Sep 2017 07:05:15 -0400","from Misha-PC.lan02.inno (unknown [85.142.117.226])\n\tby mail.ispras.ru (Postfix) with ESMTPSA id 0CC595400A0;\n\tTue, 26 Sep 2017 14:05:15 +0300 (MSK)"],"From":"Mihail Abakumov ","To":"qemu-devel@nongnu.org","Date":"Tue, 26 Sep 2017 14:05:13 +0300","Message-ID":"<150642391353.3900.18119086556871785903.stgit@Misha-PC.lan02.inno>","In-Reply-To":"<150642384156.3900.3326424823772221077.stgit@Misha-PC.lan02.inno>","References":"<150642384156.3900.3326424823772221077.stgit@Misha-PC.lan02.inno>","User-Agent":"StGit/0.17.1-dirty","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","X-detected-operating-system":"by eggs.gnu.org: GNU/Linux 3.x [fuzzy]","X-Received-From":"83.149.199.45","Subject":"[Qemu-devel] [PATCH 12/43] windbg: send data and control packets","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"sw@weilnetz.de, lprosek@redhat.com, dovgaluk@ispras.ru,\n\trkagan@virtuozzo.com, pbonzini@redhat.com, den@openvz.org","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t"},"content":"Added functions for send data and control packets to windbg.\n\nSigned-off-by: Mihail Abakumov \nSigned-off-by: Pavel Dovgalyuk \nSigned-off-by: Dmitriy Koltunov \n---\n windbgstub.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 56 insertions(+)","diff":"diff --git a/windbgstub.c b/windbgstub.c\nindex 7bc3585e53..2ebc161e33 100755\n--- a/windbgstub.c\n+++ b/windbgstub.c\n@@ -57,6 +57,62 @@ typedef struct WindbgState {\n \n static WindbgState *windbg_state;\n \n+static uint32_t compute_checksum(uint8_t *data, uint16_t len)\n+{\n+ uint32_t checksum = 0;\n+ while (len) {\n+ --len;\n+ checksum += *data++;\n+ }\n+ return checksum;\n+}\n+\n+__attribute__ ((unused)) /* unused yet */\n+static void windbg_send_data_packet(uint8_t *data, uint16_t byte_count,\n+ uint16_t type)\n+{\n+ uint8_t trailing_byte = PACKET_TRAILING_BYTE;\n+\n+ KD_PACKET packet = {\n+ .PacketLeader = PACKET_LEADER,\n+ .PacketType = type,\n+ .ByteCount = byte_count,\n+ .PacketId = windbg_state->data_packet_id,\n+ .Checksum = compute_checksum(data, byte_count)\n+ };\n+\n+ packet.PacketType = lduw_p(&packet.PacketType);\n+ packet.ByteCount = lduw_p(&packet.ByteCount);\n+ packet.PacketId = ldl_p(&packet.PacketId);\n+ packet.Checksum = ldl_p(&packet.Checksum);\n+\n+ qemu_chr_fe_write(&windbg_state->chr, PTR(packet), sizeof(packet));\n+ qemu_chr_fe_write(&windbg_state->chr, data, byte_count);\n+ qemu_chr_fe_write(&windbg_state->chr, &trailing_byte,\n+ sizeof(trailing_byte));\n+\n+ windbg_state->data_packet_id ^= 1;\n+}\n+\n+__attribute__ ((unused)) /* unused yet */\n+static void windbg_send_control_packet(uint16_t type)\n+{\n+ KD_PACKET packet = {\n+ .PacketLeader = CONTROL_PACKET_LEADER,\n+ .PacketType = type,\n+ .ByteCount = 0,\n+ .PacketId = windbg_state->ctrl_packet_id,\n+ .Checksum = 0\n+ };\n+\n+ packet.PacketType = lduw_p(&packet.PacketType);\n+ packet.PacketId = ldl_p(&packet.PacketId);\n+\n+ qemu_chr_fe_write(&windbg_state->chr, PTR(packet), sizeof(packet));\n+\n+ windbg_state->ctrl_packet_id ^= 1;\n+}\n+\n static void windbg_ctx_handler(ParsingContext *ctx)\n {}\n \n","prefixes":["12/43"]}