From nobody Tue Feb 10 20:28:09 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1506424451767665.5114931395854; Tue, 26 Sep 2017 04:14:11 -0700 (PDT) Received: from localhost ([::1]:46736 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dwnoH-0002d9-8k for importer@patchew.org; Tue, 26 Sep 2017 07:13:53 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59232) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dwnfz-0003l5-9s for qemu-devel@nongnu.org; Tue, 26 Sep 2017 07:05:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dwnfv-0000dT-V3 for qemu-devel@nongnu.org; Tue, 26 Sep 2017 07:05:19 -0400 Received: from mail.ispras.ru ([83.149.199.45]:51840) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dwnfv-0000cI-OC for qemu-devel@nongnu.org; Tue, 26 Sep 2017 07:05:15 -0400 Received: from Misha-PC.lan02.inno (unknown [85.142.117.226]) by mail.ispras.ru (Postfix) with ESMTPSA id 0CC595400A0; Tue, 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: quoted-printable 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: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sw@weilnetz.de, lprosek@redhat.com, dovgaluk@ispras.ru, rkagan@virtuozzo.com, pbonzini@redhat.com, den@openvz.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Added functions for send data and control packets to windbg. Signed-off-by: Mihail Abakumov Signed-off-by: Pavel Dovgalyuk Signed-off-by: Dmitriy Koltunov --- windbgstub.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++= ++ 1 file changed, 56 insertions(+) diff --git a/windbgstub.c b/windbgstub.c index 7bc3585e53..2ebc161e33 100755 --- a/windbgstub.c +++ b/windbgstub.c @@ -57,6 +57,62 @@ typedef struct WindbgState { =20 static WindbgState *windbg_state; =20 +static uint32_t compute_checksum(uint8_t *data, uint16_t len) +{ + uint32_t checksum =3D 0; + while (len) { + --len; + checksum +=3D *data++; + } + return checksum; +} + +__attribute__ ((unused)) /* unused yet */ +static void windbg_send_data_packet(uint8_t *data, uint16_t byte_count, + uint16_t type) +{ + uint8_t trailing_byte =3D PACKET_TRAILING_BYTE; + + KD_PACKET packet =3D { + .PacketLeader =3D PACKET_LEADER, + .PacketType =3D type, + .ByteCount =3D byte_count, + .PacketId =3D windbg_state->data_packet_id, + .Checksum =3D compute_checksum(data, byte_count) + }; + + packet.PacketType =3D lduw_p(&packet.PacketType); + packet.ByteCount =3D lduw_p(&packet.ByteCount); + packet.PacketId =3D ldl_p(&packet.PacketId); + packet.Checksum =3D ldl_p(&packet.Checksum); + + qemu_chr_fe_write(&windbg_state->chr, PTR(packet), sizeof(packet)); + qemu_chr_fe_write(&windbg_state->chr, data, byte_count); + qemu_chr_fe_write(&windbg_state->chr, &trailing_byte, + sizeof(trailing_byte)); + + windbg_state->data_packet_id ^=3D 1; +} + +__attribute__ ((unused)) /* unused yet */ +static void windbg_send_control_packet(uint16_t type) +{ + KD_PACKET packet =3D { + .PacketLeader =3D CONTROL_PACKET_LEADER, + .PacketType =3D type, + .ByteCount =3D 0, + .PacketId =3D windbg_state->ctrl_packet_id, + .Checksum =3D 0 + }; + + packet.PacketType =3D lduw_p(&packet.PacketType); + packet.PacketId =3D ldl_p(&packet.PacketId); + + qemu_chr_fe_write(&windbg_state->chr, PTR(packet), sizeof(packet)); + + windbg_state->ctrl_packet_id ^=3D 1; +} + static void windbg_ctx_handler(ParsingContext *ctx) {} =20