From mboxrd@z Thu Jan 1 00:00:00 1970 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 E0C4AC433E0 for ; Tue, 16 Mar 2021 18:45:42 +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 87A9B6511A for ; Tue, 16 Mar 2021 18:45:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 87A9B6511A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:45984 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lMEhJ-0001wl-I6 for qemu-devel@archiver.kernel.org; Tue, 16 Mar 2021 14:45:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35730) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lMET4-0004jA-AI for qemu-devel@nongnu.org; Tue, 16 Mar 2021 14:30:59 -0400 Received: from mx2.suse.de ([195.135.220.15]:32936) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lMESo-0004oM-Gu for qemu-devel@nongnu.org; Tue, 16 Mar 2021 14:30:54 -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 575B5AE89; Tue, 16 Mar 2021 18:30:38 +0000 (UTC) From: Claudio Fontana To: Paolo Bonzini , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Eduardo Habkost , Peter Maydell , =?UTF-8?q?Alex=20Benn=C3=A9e?= Subject: [PATCH v27 02/20] target/i386: Split out do_fsave, do_frstor, do_fxsave, do_fxrstor Date: Tue, 16 Mar 2021 19:30:17 +0100 Message-Id: <20210316183035.9424-3-cfontana@suse.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210316183035.9424-1-cfontana@suse.de> References: <20210316183035.9424-1-cfontana@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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=unavailable 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=20Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org, Roman Bolshakov , Claudio Fontana Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.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(-) 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 -- 2.26.2