From patchwork Tue Nov 21 14:09:31 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mikhail Abakumov X-Patchwork-Id: 840058 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3yh7L01DYDz9s71 for ; Wed, 22 Nov 2017 01:30:46 +1100 (AEDT) Received: from localhost ([::1]:34742 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eH9ZS-0003Xl-Kn for incoming@patchwork.ozlabs.org; Tue, 21 Nov 2017 09:30:42 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39833) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eH9F6-0001Zw-3o for qemu-devel@nongnu.org; Tue, 21 Nov 2017 09:09:42 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eH9F0-0002td-Aa for qemu-devel@nongnu.org; Tue, 21 Nov 2017 09:09:40 -0500 Received: from mail.ispras.ru ([83.149.199.45]:38210) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eH9F0-0002tS-2A for qemu-devel@nongnu.org; Tue, 21 Nov 2017 09:09:34 -0500 Received: from Misha-PC.lan02.inno (unknown [85.142.117.226]) by mail.ispras.ru (Postfix) with ESMTPSA id 5797754006E; Tue, 21 Nov 2017 17:09:33 +0300 (MSK) From: Mihail Abakumov To: qemu-devel@nongnu.org Date: Tue, 21 Nov 2017 17:09:31 +0300 Message-ID: <151127337115.6888.3770911670468199202.stgit@Misha-PC.lan02.inno> In-Reply-To: <151127322955.6888.16198535123422076171.stgit@Misha-PC.lan02.inno> References: <151127322955.6888.16198535123422076171.stgit@Misha-PC.lan02.inno> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 83.149.199.45 Subject: [Qemu-devel] [PATCH v3 24/45] windbg: implemented kd_api_get_context and kd_api_set_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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Mihail Abakumov Signed-off-by: Pavel Dovgalyuk Signed-off-by: Dmitriy Koltunov --- include/exec/windbgstub-utils.h | 2 ++ target/i386/windbgstub.c | 39 +++++++++++++++++++++++++++++++++++++++ windbgstub.c | 8 ++++++++ 3 files changed, 49 insertions(+) diff --git a/include/exec/windbgstub-utils.h b/include/exec/windbgstub-utils.h index 827aabb6d3..65be4793d3 100755 --- a/include/exec/windbgstub-utils.h +++ b/include/exec/windbgstub-utils.h @@ -88,6 +88,8 @@ InitedAddr *windbg_get_version(void); void kd_api_read_virtual_memory(CPUState *cpu, PacketData *pd); void kd_api_write_virtual_memory(CPUState *cpu, PacketData *pd); +void kd_api_get_context(CPUState *cpu, PacketData *pd); +void kd_api_set_context(CPUState *cpu, PacketData *pd); void kd_api_unsupported(CPUState *cpu, PacketData *pd); SizedBuf kd_gen_exception_sc(CPUState *cpu); diff --git a/target/i386/windbgstub.c b/target/i386/windbgstub.c index 43efb47471..be8fc21374 100755 --- a/target/i386/windbgstub.c +++ b/target/i386/windbgstub.c @@ -273,6 +273,45 @@ typedef struct _CPU_KPROCESSOR_STATE { CPU_KSPECIAL_REGISTERS SpecialRegisters; } CPU_KPROCESSOR_STATE, *PCPU_KPROCESSOR_STATE; +static int windbg_read_context(CPUState *cpu, uint8_t *buf, int buf_size, + int offset, int len) +{ + return 0; +} + +static int windbg_write_context(CPUState *cpu, uint8_t *buf, int buf_size, + int offset, int len) +{ + return 0; +} + +void kd_api_get_context(CPUState *cpu, PacketData *pd) +{ + int err; + + pd->extra_size = sizeof(CPU_CONTEXT); + err = windbg_read_context(cpu, pd->extra, pd->extra_size, 0, + pd->extra_size); + + if (err) { + pd->extra_size = 0; + pd->m64.ReturnStatus = STATUS_UNSUCCESSFUL; + } +} + +void kd_api_set_context(CPUState *cpu, PacketData *pd) +{ + int err; + + err = windbg_write_context(cpu, pd->extra, pd->extra_size, 0, + sizeof(CPU_CONTEXT)); + pd->extra_size = 0; + + if (err) { + pd->m64.ReturnStatus = STATUS_UNSUCCESSFUL; + } +} + bool windbg_on_load(void) { CPUState *cpu = qemu_get_cpu(0); diff --git a/windbgstub.c b/windbgstub.c index 1725107722..ad8638b793 100755 --- a/windbgstub.c +++ b/windbgstub.c @@ -148,6 +148,14 @@ static void windbg_process_manipulate_packet(ParsingContext *ctx) kd_api_write_virtual_memory(cpu, &ctx->data); break; + case DbgKdGetContextApi: + kd_api_get_context(cpu, &ctx->data); + break; + + case DbgKdSetContextApi: + kd_api_set_context(cpu, &ctx->data); + break; + default: kd_api_unsupported(cpu, &ctx->data); break;