From nobody Sun May 5 08:05:41 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1585642680; cv=none; d=zohomail.com; s=zohoarc; b=G/HLlkqaZZvDPS/zSra9N01ZJY3wOF1d9vMGUsCZOhsayo5ivq1isfutdmPNJLgI9KxZgcfygZYN7fZWe6cKJ/w1KJ2qLaLfVPu4LOMnDxZHEmsRMR20CasOI6AG+vOKJWidugQpk3DAQbZO0vfdnWlHJeA2xAFoSqAqaJEO5Kc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1585642680; h=Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To; bh=aP2ZVmEO3kXvlvyFu6l1+T/e6AxAvLk0xKLKArgmpbk=; b=Hu6sOd+aFLSV8u58+rboNgWhLnnGCMDHod49ZRUplMuz2u4VxU57gjIRSPIteT25ix5tZjp2on4aaaqFVpVtg41UW5Er4+agpHOu1mtIzly3yH236iEtvI1ub/5Rqenni7a2/QSnEsFCkLCBHtW7PezmsyZfGZ0q2QYfCy86aJg= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1585642679712117.12923816693683; Tue, 31 Mar 2020 01:17:59 -0700 (PDT) Received: from localhost ([::1]:33780 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jJC5u-0002Mb-H5 for importer@patchew.org; Tue, 31 Mar 2020 04:17:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55801) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jJC3Y-0007UA-UU for qemu-devel@nongnu.org; Tue, 31 Mar 2020 04:15:33 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jJC3X-0003Os-27 for qemu-devel@nongnu.org; Tue, 31 Mar 2020 04:15:32 -0400 Received: from lucky1.263xmail.com ([211.157.147.133]:45638) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jJC3W-0003EO-NE for qemu-devel@nongnu.org; Tue, 31 Mar 2020 04:15:31 -0400 Received: from localhost (unknown [192.168.167.172]) by lucky1.263xmail.com (Postfix) with ESMTP id 977CDAB4BD; Tue, 31 Mar 2020 16:15:14 +0800 (CST) Received: from localhost.localdomain (unknown [223.72.79.229]) by smtp.263.net (postfix) whith ESMTP id P18336T140718232278784S1585642507954077_; Tue, 31 Mar 2020 16:15:14 +0800 (CST) X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ADDR-CHECKED4: 1 X-ANTISPAM-LEVEL: 2 X-ABS-CHECKED: 0 X-UNIQUE-TAG: <0aa00fb0e1ca73e2d1a6cbcec3b9f006> X-RL-SENDER: chengang@emindsoft.com.cn X-SENDER: chengang@emindsoft.com.cn X-LOGIN-NAME: chengang@emindsoft.com.cn X-FST-TO: riku.voipio@iki.fi X-SENDER-IP: 223.72.79.229 X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 X-System-Flag: 0 From: chengang@emindsoft.com.cn To: riku.voipio@iki.fi, laurent@vivier.eu Subject: [PATCH] linux-user: main: Let each env have its own gdt table Date: Tue, 31 Mar 2020 16:15:06 +0800 Message-Id: <20200331081506.29037-1-chengang@emindsoft.com.cn> X-Mailer: git-send-email 2.24.0.308.g228f53135a MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 211.157.147.133 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: chengang@emindsoft.com.cn, qemu-devel@nongnu.org, gang.chen.5i5j@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Chen Gang It is a temporary fix for thread LTS which need switch the ldt related index in gdt table for stable-4.1 branch. Welcome anyone providing the complete fix. Signed-off-by: Chen Gang --- linux-user/main.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/linux-user/main.c b/linux-user/main.c index 8ffc525195..cad261fc7b 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -194,12 +194,17 @@ CPUArchState *cpu_copy(CPUArchState *env) CPUArchState *new_env =3D new_cpu->env_ptr; CPUBreakpoint *bp; CPUWatchpoint *wp; + int size =3D sizeof(uint64_t) * TARGET_GDT_ENTRIES; =20 /* Reset non arch specific state */ cpu_reset(new_cpu); =20 memcpy(new_env, env, sizeof(CPUArchState)); =20 + new_env->gdt.base =3D target_mmap(0, size, PROT_READ | PROT_WRITE, + MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); + memcpy(g2h(new_env->gdt.base), g2h(env->gdt.base), size); + /* Clone all break/watchpoints. Note: Once we support ptrace with hw-debug register access, make su= re BP_CPU break/watchpoints are handled correctly on clone. */ --=20 2.24.0.308.g228f53135a