From patchwork Mon Mar 22 13:27:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Claudio Fontana X-Patchwork-Id: 406151 Delivered-To: patch@linaro.org Received: by 2002:a02:8562:0:0:0:0:0 with SMTP id g89csp3572922jai; Mon, 22 Mar 2021 06:32:35 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzkBehD19QhJIQQiORiR4fND+A0OCmSshaSIAZE8eyTmOCoqCdUxnrZkiBOLe1Es6lsnEts X-Received: by 2002:a92:cd4a:: with SMTP id v10mr11463756ilq.273.1616419955729; Mon, 22 Mar 2021 06:32:35 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1616419955; cv=none; d=google.com; s=arc-20160816; b=vzKZAT1C9PyyZaThPb7AraKOCIQGxhSKSQTE9xXIsHNXfSOAGc37Ucq3Ge1W3FGybW kLC60eMxJIkav5R8oa45GpH8vtARggbNXTn3OBjh/u/MXnRfG/fqhMouzb0+i258oxnu 94IG27AIpom+R9IXEsnLIXjtP8EAzETROizNj99k8OOYRs6LPUWQg4UH6Na0TZ8is2WF +z5NaAhOZ0KKahTQoXFzR/YugW9w1OdloGfleHPK5BVx+pyKmKKe5Rgi7aXOKBtO7Qo9 lsvjUcjwQjGoDTQd51zHIlmlNNtzmopJP1cKE4888Kr5pF80d9i6jHUDAaaEBjgSbnsz zw1Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:cc:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:to:from; bh=Cp5RCTIsznWoWsNmzfAchzNJIUbX9vX8jH5Qk2Qy0zE=; b=QxCYa1S4QfeYnk0kFpXgNxqMdh2shXVhsAqgw8/jojzKQ9FBEcUwL75dj0zp7RmQwu bbsnJsbIQOpIW+C9M85vsfQBk/alBwVsq8VVUgP+63hbeQUYWfTpDx6qf+8yL83tCjE3 1yKju6YSpyFUhEHAZNY6idwE0ClwumfPxA5L/9YnL/cfTbd4VjyuEi4OOZQ4RwxB9qRa shVD6zgWLYJlQc9Gm0VxJlvbv6V3CyNhFqPecY8bJQw96eCuWBNsMNwemEep/xs/khKV lSFR0FrtYGJfj0FAD4NUylGwKesoMkzIlJumqJy8ZbRRlfOyXRoiNbRKtKKFlUNcf5No w7mw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org" Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id h18si8737217iob.80.2021.03.22.06.32.35 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 22 Mar 2021 06:32:35 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org" Received: from localhost ([::1]:35986 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lOKfb-0004Rc-3o for patch@linaro.org; Mon, 22 Mar 2021 09:32:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53308) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lOKbI-0000jw-O6 for qemu-devel@nongnu.org; Mon, 22 Mar 2021 09:28:08 -0400 Received: from mx2.suse.de ([195.135.220.15]:45040) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lOKbE-0001gG-Pa for qemu-devel@nongnu.org; Mon, 22 Mar 2021 09:28:08 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 98C9CAD79; Mon, 22 Mar 2021 13:28:03 +0000 (UTC) From: Claudio Fontana To: Paolo Bonzini , Richard Henderson , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Eduardo Habkost , Peter Maydell , =?utf-8?q?Alex_Benn=C3=A9e?= Subject: [PATCH v28 02/23] target/i386: Split out do_fsave, do_frstor, do_fxsave, do_fxrstor Date: Mon, 22 Mar 2021 14:27:39 +0100 Message-Id: <20210322132800.7470-4-cfontana@suse.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210322132800.7470-1-cfontana@suse.de> References: <20210322132800.7470-1-cfontana@suse.de> MIME-Version: 1.0 Received-SPF: pass client-ip=195.135.220.15; envelope-from=cfontana@suse.de; helo=mx2.suse.de X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no 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: Laurent Vivier , Thomas Huth , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org, Roman Bolshakov , Claudio Fontana Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson The helper_* functions must use GETPC() to unwind from TCG. The cpu_x86_* functions cannot, and directly calling the helper_* functions is a bug. Split out new functions that perform the work and can be used by both. Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Claudio Fontana Tested-by: Claudio Fontana --- target/i386/tcg/fpu_helper.c | 66 +++++++++++++++++++++++------------- 1 file changed, 42 insertions(+), 24 deletions(-) -- 2.26.2 Reviewed-by: Alex Bennée diff --git a/target/i386/tcg/fpu_helper.c b/target/i386/tcg/fpu_helper.c index 3d9b192901..20e4d2e715 100644 --- a/target/i386/tcg/fpu_helper.c +++ b/target/i386/tcg/fpu_helper.c @@ -2457,17 +2457,18 @@ void helper_fldenv(CPUX86State *env, target_ulong ptr, int data32) do_fldenv(env, ptr, data32, GETPC()); } -void helper_fsave(CPUX86State *env, target_ulong ptr, int data32) +static void do_fsave(CPUX86State *env, target_ulong ptr, int data32, + uintptr_t retaddr) { floatx80 tmp; int i; - do_fstenv(env, ptr, data32, GETPC()); + do_fstenv(env, ptr, data32, retaddr); ptr += (14 << data32); for (i = 0; i < 8; i++) { tmp = ST(i); - do_fstt(env, tmp, ptr, GETPC()); + do_fstt(env, tmp, ptr, retaddr); ptr += 10; } @@ -2485,30 +2486,41 @@ void helper_fsave(CPUX86State *env, target_ulong ptr, int data32) env->fptags[7] = 1; } +void helper_fsave(CPUX86State *env, target_ulong ptr, int data32) +{ + do_fsave(env, ptr, data32, GETPC()); +} + +static void do_frstor(CPUX86State *env, target_ulong ptr, int data32, + uintptr_t retaddr) +{ + floatx80 tmp; + int i; + + do_fldenv(env, ptr, data32, retaddr); + ptr += (14 << data32); + + for (i = 0; i < 8; i++) { + tmp = do_fldt(env, ptr, retaddr); + ST(i) = tmp; + ptr += 10; + } +} + void helper_frstor(CPUX86State *env, target_ulong ptr, int data32) { - floatx80 tmp; - int i; - - do_fldenv(env, ptr, data32, GETPC()); - ptr += (14 << data32); - - for (i = 0; i < 8; i++) { - tmp = do_fldt(env, ptr, GETPC()); - ST(i) = tmp; - ptr += 10; - } + do_frstor(env, ptr, data32, GETPC()); } #if defined(CONFIG_USER_ONLY) void cpu_x86_fsave(CPUX86State *env, target_ulong ptr, int data32) { - helper_fsave(env, ptr, data32); + do_fsave(env, ptr, data32, 0); } void cpu_x86_frstor(CPUX86State *env, target_ulong ptr, int data32) { - helper_frstor(env, ptr, data32); + do_frstor(env, ptr, data32, 0); } #endif @@ -2593,10 +2605,8 @@ static void do_xsave_pkru(CPUX86State *env, target_ulong ptr, uintptr_t ra) cpu_stq_data_ra(env, ptr, env->pkru, ra); } -void helper_fxsave(CPUX86State *env, target_ulong ptr) +static void do_fxsave(CPUX86State *env, target_ulong ptr, uintptr_t ra) { - uintptr_t ra = GETPC(); - /* The operand must be 16 byte aligned */ if (ptr & 0xf) { raise_exception_ra(env, EXCP0D_GPF, ra); @@ -2615,6 +2625,11 @@ void helper_fxsave(CPUX86State *env, target_ulong ptr) } } +void helper_fxsave(CPUX86State *env, target_ulong ptr) +{ + do_fxsave(env, ptr, GETPC()); +} + static uint64_t get_xinuse(CPUX86State *env) { uint64_t inuse = -1; @@ -2757,10 +2772,8 @@ static void do_xrstor_pkru(CPUX86State *env, target_ulong ptr, uintptr_t ra) env->pkru = cpu_ldq_data_ra(env, ptr, ra); } -void helper_fxrstor(CPUX86State *env, target_ulong ptr) +static void do_fxrstor(CPUX86State *env, target_ulong ptr, uintptr_t ra) { - uintptr_t ra = GETPC(); - /* The operand must be 16 byte aligned */ if (ptr & 0xf) { raise_exception_ra(env, EXCP0D_GPF, ra); @@ -2779,15 +2792,20 @@ void helper_fxrstor(CPUX86State *env, target_ulong ptr) } } +void helper_fxrstor(CPUX86State *env, target_ulong ptr) +{ + do_fxrstor(env, ptr, GETPC()); +} + #if defined(CONFIG_USER_ONLY) void cpu_x86_fxsave(CPUX86State *env, target_ulong ptr) { - helper_fxsave(env, ptr); + do_fxsave(env, ptr, 0); } void cpu_x86_fxrstor(CPUX86State *env, target_ulong ptr) { - helper_fxrstor(env, ptr); + do_fxrstor(env, ptr, 0); } #endif