From nobody Tue Feb 10 20:14:16 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 (208.118.235.17 [208.118.235.17]) by mx.zohomail.com with SMTPS id 1511274575036133.30564713696333; Tue, 21 Nov 2017 06:29:35 -0800 (PST) Received: from localhost ([::1]:34737 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eH9YK-0002kC-49 for importer@patchew.org; Tue, 21 Nov 2017 09:29:32 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39994) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eH9FM-0001ob-6P for qemu-devel@nongnu.org; Tue, 21 Nov 2017 09:10:01 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eH9FH-0002xZ-En for qemu-devel@nongnu.org; Tue, 21 Nov 2017 09:09:56 -0500 Received: from mail.ispras.ru ([83.149.199.45]:38322) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eH9FH-0002xM-1v for qemu-devel@nongnu.org; Tue, 21 Nov 2017 09:09:51 -0500 Received: from Misha-PC.lan02.inno (unknown [85.142.117.226]) by mail.ispras.ru (Postfix) with ESMTPSA id 4E23854006E; Tue, 21 Nov 2017 17:09:50 +0300 (MSK) From: Mihail Abakumov To: qemu-devel@nongnu.org Date: Tue, 21 Nov 2017 17:09:48 +0300 Message-ID: <151127338809.6888.8871616354338249287.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 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 v3 27/45] windbg: implemented windbg_write_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" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Signed-off-by: Mihail Abakumov Signed-off-by: Pavel Dovgalyuk Signed-off-by: Dmitriy Koltunov --- target/i386/windbgstub.c | 212 ++++++++++++++++++++++++++++++++++++++++++= ++++ 1 file changed, 212 insertions(+) diff --git a/target/i386/windbgstub.c b/target/i386/windbgstub.c index 1fccd8eee7..dc2a10f8e6 100755 --- a/target/i386/windbgstub.c +++ b/target/i386/windbgstub.c @@ -273,6 +273,12 @@ typedef struct _CPU_KPROCESSOR_STATE { CPU_KSPECIAL_REGISTERS SpecialRegisters; } CPU_KPROCESSOR_STATE, *PCPU_KPROCESSOR_STATE; =20 +static void windbg_set_dr(CPUState *cpu, int index, target_ulong value) +{} + +static void windbg_set_sr(CPUState *cpu, int sr, uint16_t selector) +{} + static int windbg_read_context(CPUState *cpu, uint8_t *buf, int buf_size, int offset, int len) { @@ -378,6 +384,212 @@ static int windbg_read_context(CPUState *cpu, uint8_t= *buf, int buf_size, static int windbg_write_context(CPUState *cpu, uint8_t *buf, int buf_size, int offset, int len) { + CPUArchState *env =3D cpu->env_ptr; + int mem_size, i, tmp; + uint8_t *mem_ptr =3D buf; + + if (len < 0 || len > buf_size) { + WINDBG_ERROR("windbg_write_context: incorrect length %d", len); + return 1; + } + + if (offset < 0 || offset + len > sizeof(CPU_CONTEXT)) { + WINDBG_ERROR("windbg_write_context: incorrect offset %d", offset); + return 2; + } + + while (len > 0 && offset < sizeof(CPU_CONTEXT)) { + mem_size =3D 1; + switch (offset) { + + case offsetof(CPU_CONTEXT, ContextFlags): + mem_size =3D sizeof_field(CPU_CONTEXT, ContextFlags); + break; + + case offsetof(CPU_CONTEXT, Dr0): + mem_size =3D sizeof_field(CPU_CONTEXT, Dr0); + windbg_set_dr(cpu, 0, ldtul_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, Dr1): + mem_size =3D sizeof_field(CPU_CONTEXT, Dr1); + windbg_set_dr(cpu, 1, ldtul_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, Dr2): + mem_size =3D sizeof_field(CPU_CONTEXT, Dr2); + windbg_set_dr(cpu, 2, ldtul_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, Dr3): + mem_size =3D sizeof_field(CPU_CONTEXT, Dr3); + windbg_set_dr(cpu, 3, ldtul_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, Dr6): + mem_size =3D sizeof_field(CPU_CONTEXT, Dr6); + windbg_set_dr(cpu, 6, ldtul_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, Dr7): + mem_size =3D sizeof_field(CPU_CONTEXT, Dr7); + windbg_set_dr(cpu, 7, ldtul_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, FloatSave.ControlWord): + mem_size =3D sizeof_field(CPU_CONTEXT, FloatSave.ControlWord); + cpu_set_fpuc(env, ldl_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, FloatSave.StatusWord): + mem_size =3D sizeof_field(CPU_CONTEXT, FloatSave.StatusWord); + tmp =3D ldl_p(buf + offset); + env->fpstt =3D (tmp >> 11) & 7; + env->fpus =3D tmp & ~0x3800; + break; + + case offsetof(CPU_CONTEXT, FloatSave.TagWord): + mem_size =3D sizeof_field(CPU_CONTEXT, FloatSave.TagWord); + tmp =3D ldl_p(buf + offset); + for (i =3D 0; i < 8; ++i) { + env->fptags[i] =3D !((tmp >> i) & 1); + } + break; + + case offsetof(CPU_CONTEXT, FloatSave.ErrorOffset): + mem_size =3D sizeof_field(CPU_CONTEXT, FloatSave.ErrorOffset); + UINT32_P(&env->fpip)[0] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, FloatSave.ErrorSelector): + mem_size =3D sizeof_field(CPU_CONTEXT, FloatSave.ErrorSelector= ); + UINT32_P(&env->fpip)[1] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, FloatSave.DataOffset): + mem_size =3D sizeof_field(CPU_CONTEXT, FloatSave.DataOffset); + UINT32_P(&env->fpdp)[0] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, FloatSave.DataSelector): + mem_size =3D sizeof_field(CPU_CONTEXT, FloatSave.DataSelector); + UINT32_P(&env->fpdp)[1] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, FloatSave.RegisterArea): + mem_size =3D sizeof_field(CPU_CONTEXT, FloatSave.RegisterArea); + for (i =3D 0; i < 8; ++i) { + memcpy(PTR(env->fpregs[i]), mem_ptr + i * 10, 10); + } + break; + + case offsetof(CPU_CONTEXT, FloatSave.Cr0NpxState): + mem_size =3D sizeof_field(CPU_CONTEXT, FloatSave.Cr0NpxState); + env->xcr0 =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, SegGs): + mem_size =3D sizeof_field(CPU_CONTEXT, SegGs); + windbg_set_sr(cpu, R_GS, lduw_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, SegFs): + mem_size =3D sizeof_field(CPU_CONTEXT, SegFs); + windbg_set_sr(cpu, R_FS, lduw_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, SegEs): + mem_size =3D sizeof_field(CPU_CONTEXT, SegEs); + windbg_set_sr(cpu, R_ES, lduw_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, SegDs): + mem_size =3D sizeof_field(CPU_CONTEXT, SegDs); + windbg_set_sr(cpu, R_DS, lduw_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, Edi): + mem_size =3D sizeof_field(CPU_CONTEXT, Edi); + env->regs[R_EDI] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, Esi): + mem_size =3D sizeof_field(CPU_CONTEXT, Esi); + env->regs[R_ESI] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, Ebx): + mem_size =3D sizeof_field(CPU_CONTEXT, Ebx); + env->regs[R_EBX] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, Edx): + mem_size =3D sizeof_field(CPU_CONTEXT, Edx); + env->regs[R_EDX] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, Ecx): + mem_size =3D sizeof_field(CPU_CONTEXT, Ecx); + env->regs[R_ECX] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, Eax): + mem_size =3D sizeof_field(CPU_CONTEXT, Eax); + env->regs[R_EAX] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, Ebp): + mem_size =3D sizeof_field(CPU_CONTEXT, Ebp); + env->regs[R_EBP] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, Eip): + mem_size =3D sizeof_field(CPU_CONTEXT, Eip); + env->eip =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, SegCs): + mem_size =3D sizeof_field(CPU_CONTEXT, SegCs); + windbg_set_sr(cpu, R_CS, lduw_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, EFlags): + mem_size =3D sizeof_field(CPU_CONTEXT, EFlags); + env->eflags =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, Esp): + mem_size =3D sizeof_field(CPU_CONTEXT, Esp); + env->regs[R_ESP] =3D ldl_p(buf + offset); + break; + + case offsetof(CPU_CONTEXT, SegSs): + mem_size =3D sizeof_field(CPU_CONTEXT, SegSs); + windbg_set_sr(cpu, R_SS, lduw_p(buf + offset)); + break; + + case offsetof(CPU_CONTEXT, ExtendedRegisters): + mem_size =3D sizeof_field(CPU_CONTEXT, ExtendedRegisters); + + uint8_t *ptr =3D mem_ptr + 160; + for (i =3D 0; i < 8; ++i, ptr +=3D 16) { + env->xmm_regs[i].ZMM_Q(0) =3D ldl_p(ptr); + env->xmm_regs[i].ZMM_Q(1) =3D ldl_p(ptr + 8); + } + + cpu_set_mxcsr(env, ldl_p(mem_ptr + 24)); + break; + + default: + WINDBG_ERROR("write_context: Unknown offset %d", offset); + return -1; + } + + mem_ptr +=3D mem_size; + offset +=3D mem_size; + len -=3D mem_size; + } + return 0; } =20