From nobody Tue Feb 10 01:32:50 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 1543503535899144.2049848805243; Thu, 29 Nov 2018 06:58:55 -0800 (PST) Received: from localhost ([::1]:54617 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gSNmI-0000sH-Lp for importer@patchew.org; Thu, 29 Nov 2018 09:58:54 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53075) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gSNJN-0004u4-MB for qemu-devel@nongnu.org; Thu, 29 Nov 2018 09:29:02 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gSNJM-0006Yi-OW for qemu-devel@nongnu.org; Thu, 29 Nov 2018 09:29:01 -0500 Received: from mail.ispras.ru ([83.149.199.45]:39522) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gSNJK-0006Se-N3 for qemu-devel@nongnu.org; Thu, 29 Nov 2018 09:29:00 -0500 Received: from Misha-PC.lan02.inno (unknown [85.142.117.226]) by mail.ispras.ru (Postfix) with ESMTPSA id 509695400F5; Thu, 29 Nov 2018 17:28:57 +0300 (MSK) From: Mikhail Abakumov To: qemu-devel@nongnu.org Date: Thu, 29 Nov 2018 17:28:54 +0300 Message-ID: <154350173476.8036.14500512061400455655.stgit@Misha-PC.lan02.inno> In-Reply-To: <154350164526.8036.12623669071583857903.stgit@Misha-PC.lan02.inno> References: <154350164526.8036.12623669071583857903.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 15/39] windbg: handler of parsing context 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" Signed-off-by: Mikhail Abakumov Signed-off-by: Pavel Dovgalyuk --- windbgstub.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 53 insertions(+), 1 deletion(-) diff --git a/windbgstub.c b/windbgstub.c index c45faec43f..fe0b007a06 100644 --- a/windbgstub.c +++ b/windbgstub.c @@ -15,6 +15,7 @@ #include "chardev/char-fe.h" #include "qemu/cutils.h" #include "sysemu/reset.h" +#include "sysemu/sysemu.h" #include "sysemu/kvm.h" #include "exec/windbgstub.h" #include "exec/windbgstub-utils.h" @@ -113,7 +114,6 @@ static void windbg_send_data_packet(WindbgState *state,= uint8_t *data, state->wait_packet_type =3D PACKET_TYPE_KD_ACKNOWLEDGE; } =20 -__attribute__ ((unused)) /* unused yet */ static void windbg_send_control_packet(WindbgState *state, uint16_t type, uint32_t id) { @@ -130,8 +130,52 @@ static void windbg_send_control_packet(WindbgState *st= ate, uint16_t type, qemu_chr_fe_write(&state->chr, PTR(packet), sizeof(packet)); } =20 +static void windbg_vm_stop(void) +{ + vm_stop(RUN_STATE_PAUSED); +} + +static void windbg_process_data_packet(WindbgState *state) +{ +} + +static void windbg_process_control_packet(WindbgState *state) +{ +} + static void windbg_ctx_handler(WindbgState *state) { + if (!state->is_loaded) { + if (state->ctx.result =3D=3D RESULT_BREAKIN_BYTE) { + state->catched_breakin_byte =3D true; + } + return; + } + + switch (state->ctx.result) { + case RESULT_NONE: + break; + + case RESULT_BREAKIN_BYTE: + windbg_vm_stop(); + break; + + case RESULT_CONTROL_PACKET: + windbg_process_control_packet(state); + break; + + case RESULT_DATA_PACKET: + windbg_process_data_packet(state); + break; + + case RESULT_UNKNOWN_PACKET: + case RESULT_ERROR: + windbg_send_control_packet(state, PACKET_TYPE_KD_RESEND, 0); + break; + + default: + break; + } } =20 static void windbg_read_byte(ParsingContext *ctx, uint8_t byte) @@ -260,6 +304,14 @@ void windbg_try_load(void) if (windbg_state && !windbg_state->is_loaded) { if (windbg_on_load()) { windbg_state->is_loaded =3D true; + + /* Handle last packet. Or we can require resend last packet. */ + windbg_ctx_handler(windbg_state); + + if (windbg_state->catched_breakin_byte =3D=3D true) { + windbg_vm_stop(); + windbg_state->catched_breakin_byte =3D false; + } } } }