From patchwork Thu May 28 19:37:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Bolshakov X-Patchwork-Id: 281737 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42466C433DF for ; Thu, 28 May 2020 19:40:38 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 152FC207BC for ; Thu, 28 May 2020 19:40:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=yadro.com header.i=@yadro.com header.b="UFPQSevX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 152FC207BC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=yadro.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:39240 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jeOOL-000538-8p for qemu-devel@archiver.kernel.org; Thu, 28 May 2020 15:40:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49290) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jeOLx-00007h-7e for qemu-devel@nongnu.org; Thu, 28 May 2020 15:38:09 -0400 Received: from mta-02.yadro.com ([89.207.88.252]:35528 helo=mta-01.yadro.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jeOLw-00074Y-2z for qemu-devel@nongnu.org; Thu, 28 May 2020 15:38:08 -0400 Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id C61EF4C86C; Thu, 28 May 2020 19:38:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yadro.com; h= content-type:content-type:content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:date:subject :subject:from:from:received:received:received; s=mta-01; t= 1590694683; x=1592509084; bh=HVRzyDynPbZtCFOM0hgLRkscuGEiqCkA6G3 QSR37gYE=; b=UFPQSevXGV85jaio4QQ1+pMkgI1JQRN4XV0gJNti7Za8FlmJVPw 1804bG4Xl1ZKBILds5C2q76XP9hLAtXd2AS40LT1y/ea9oeIP+bIVilS3H69mV9C sN1WzHRDxfsqnXnQlPSNzROxXFmMvyCekRo0vip+t58uKk1L1ADBlCOg= X-Virus-Scanned: amavisd-new at yadro.com Received: from mta-01.yadro.com ([127.0.0.1]) by localhost (mta-01.yadro.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id oZEwOPLAEQQm; Thu, 28 May 2020 22:38:03 +0300 (MSK) Received: from T-EXCH-02.corp.yadro.com (t-exch-02.corp.yadro.com [172.17.10.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mta-01.yadro.com (Postfix) with ESMTPS id 04C454C862; Thu, 28 May 2020 22:38:03 +0300 (MSK) Received: from localhost (172.17.204.212) by T-EXCH-02.corp.yadro.com (172.17.10.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.669.32; Thu, 28 May 2020 22:38:04 +0300 From: Roman Bolshakov To: Subject: [PATCH 07/13] i386: hvf: Drop fetch_rip from HVFX86EmulatorState Date: Thu, 28 May 2020 22:37:52 +0300 Message-ID: <20200528193758.51454-8-r.bolshakov@yadro.com> X-Mailer: git-send-email 2.26.1 In-Reply-To: <20200528193758.51454-1-r.bolshakov@yadro.com> References: <20200528193758.51454-1-r.bolshakov@yadro.com> MIME-Version: 1.0 X-Originating-IP: [172.17.204.212] X-ClientProxiedBy: T-EXCH-01.corp.yadro.com (172.17.10.101) To T-EXCH-02.corp.yadro.com (172.17.10.102) Received-SPF: pass client-ip=89.207.88.252; envelope-from=r.bolshakov@yadro.com; helo=mta-01.yadro.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/28 15:38:02 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Roman Bolshakov , Eduardo Habkost , Cameron Esfahani , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The field is used to print address of instructions that have no parser in decode_invalid(). RIP from VMCS is saved into fetch_rip before decoding starts but it's also saved into env->eip in load_regs(). Therefore env->eip can be used instead of fetch_rip. While at it, correct address printed in decode_invalid(). It prints an address before the unknown instruction. Signed-off-by: Roman Bolshakov --- target/i386/hvf/hvf.c | 6 ------ target/i386/hvf/x86.h | 1 - target/i386/hvf/x86_decode.c | 3 +-- 3 files changed, 1 insertion(+), 9 deletions(-) diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c index 45ae55dd27..416a6fae7c 100644 --- a/target/i386/hvf/hvf.c +++ b/target/i386/hvf/hvf.c @@ -767,8 +767,6 @@ int hvf_vcpu_exec(CPUState *cpu) struct x86_decode decode; load_regs(cpu); - env->hvf_emul->fetch_rip = rip; - decode_instruction(env, &decode); exec_instruction(env, &decode); store_regs(cpu); @@ -809,8 +807,6 @@ int hvf_vcpu_exec(CPUState *cpu) struct x86_decode decode; load_regs(cpu); - env->hvf_emul->fetch_rip = rip; - decode_instruction(env, &decode); assert(ins_len == decode.len); exec_instruction(env, &decode); @@ -915,8 +911,6 @@ int hvf_vcpu_exec(CPUState *cpu) struct x86_decode decode; load_regs(cpu); - env->hvf_emul->fetch_rip = rip; - decode_instruction(env, &decode); exec_instruction(env, &decode); store_regs(cpu); diff --git a/target/i386/hvf/x86.h b/target/i386/hvf/x86.h index e3ab7c5137..411e4b6599 100644 --- a/target/i386/hvf/x86.h +++ b/target/i386/hvf/x86.h @@ -293,7 +293,6 @@ typedef struct lazy_flags { /* Definition of hvf_x86_state is here */ struct HVFX86EmulatorState { - uint64_t fetch_rip; struct x86_register regs[16]; struct x86_reg_flags rflags; struct lazy_flags lflags; diff --git a/target/i386/hvf/x86_decode.c b/target/i386/hvf/x86_decode.c index a590088f54..d881542181 100644 --- a/target/i386/hvf/x86_decode.c +++ b/target/i386/hvf/x86_decode.c @@ -29,8 +29,7 @@ static void decode_invalid(CPUX86State *env, struct x86_decode *decode) { - printf("%llx: failed to decode instruction ", env->hvf_emul->fetch_rip - - decode->len); + printf("%llx: failed to decode instruction ", env->eip); for (int i = 0; i < decode->opcode_len; i++) { printf("%x ", decode->opcode[i]); }