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=-16.7 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 581B1C433B4 for ; Fri, 16 Apr 2021 16:58:38 +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 CE83061008 for ; Fri, 16 Apr 2021 16:58:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CE83061008 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]:55426 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lXRng-0000Vo-VN for qemu-devel@archiver.kernel.org; Fri, 16 Apr 2021 12:58:36 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46538) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lXRLB-0004IE-G6 for qemu-devel@nongnu.org; Fri, 16 Apr 2021 12:29:09 -0400 Received: from mx2.suse.de ([195.135.220.15]:44418) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lXRL2-0001Tk-V4 for qemu-devel@nongnu.org; Fri, 16 Apr 2021 12:29:09 -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 AFC18B1F3; Fri, 16 Apr 2021 16:28:40 +0000 (UTC) From: Claudio Fontana To: Peter Maydell , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Richard Henderson , =?UTF-8?q?Alex=20Benn=C3=A9e?= Subject: [RFC v14 31/80] target/arm: move sve_exception_el out of TCG helpers Date: Fri, 16 Apr 2021 18:27:35 +0200 Message-Id: <20210416162824.25131-32-cfontana@suse.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210416162824.25131-1-cfontana@suse.de> References: <20210416162824.25131-1-cfontana@suse.de> MIME-Version: 1.0 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=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: Paolo Bonzini , Roman Bolshakov , Claudio Fontana , Eduardo Habkost , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" we need this for KVM too. Signed-off-by: Claudio Fontana Reviewed-by: Richard Henderson --- target/arm/cpu-sysemu.c | 62 +++++++++++++++++++++++++++++++++++++++ target/arm/cpu-user.c | 5 ++++ target/arm/tcg/helper.c | 64 ----------------------------------------- 3 files changed, 67 insertions(+), 64 deletions(-) diff --git a/target/arm/cpu-sysemu.c b/target/arm/cpu-sysemu.c index 7a314bf805..7cc721fe68 100644 --- a/target/arm/cpu-sysemu.c +++ b/target/arm/cpu-sysemu.c @@ -348,3 +348,65 @@ void aarch64_sync_64_to_32(CPUARMState *env) env->regs[15] = env->pc; } + +/* + * Return the exception level to which exceptions should be taken + * via SVEAccessTrap. If an exception should be routed through + * AArch64.AdvSIMDFPAccessTrap, return 0; fp_exception_el should + * take care of raising that exception. + * C.f. the ARM pseudocode function CheckSVEEnabled. + */ +int sve_exception_el(CPUARMState *env, int el) +{ + uint64_t hcr_el2 = arm_hcr_el2_eff(env); + + if (el <= 1 && (hcr_el2 & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { + bool disabled = false; + + /* + * The CPACR.ZEN controls traps to EL1: + * 0, 2 : trap EL0 and EL1 accesses + * 1 : trap only EL0 accesses + * 3 : trap no accesses + */ + if (!extract32(env->cp15.cpacr_el1, 16, 1)) { + disabled = true; + } else if (!extract32(env->cp15.cpacr_el1, 17, 1)) { + disabled = el == 0; + } + if (disabled) { + /* route_to_el2 */ + return hcr_el2 & HCR_TGE ? 2 : 1; + } + + /* Check CPACR.FPEN. */ + if (!extract32(env->cp15.cpacr_el1, 20, 1)) { + disabled = true; + } else if (!extract32(env->cp15.cpacr_el1, 21, 1)) { + disabled = el == 0; + } + if (disabled) { + return 0; + } + } + + /* + * CPTR_EL2. Since TZ and TFP are positive, + * they will be zero when EL2 is not present. + */ + if (el <= 2 && arm_is_el2_enabled(env)) { + if (env->cp15.cptr_el[2] & CPTR_TZ) { + return 2; + } + if (env->cp15.cptr_el[2] & CPTR_TFP) { + return 0; + } + } + + /* CPTR_EL3. Since EZ is negative we must check for EL3. */ + if (arm_feature(env, ARM_FEATURE_EL3) + && !(env->cp15.cptr_el[3] & CPTR_EZ)) { + return 3; + } + return 0; +} diff --git a/target/arm/cpu-user.c b/target/arm/cpu-user.c index 0225089e46..39093ade76 100644 --- a/target/arm/cpu-user.c +++ b/target/arm/cpu-user.c @@ -33,3 +33,8 @@ uint32_t arm_phys_excp_target_el(CPUState *cs, uint32_t excp_idx, { return 1; } + +int sve_exception_el(CPUARMState *env, int el) +{ + return 0; +} diff --git a/target/arm/tcg/helper.c b/target/arm/tcg/helper.c index e4f18bcaa7..aaa307daca 100644 --- a/target/arm/tcg/helper.c +++ b/target/arm/tcg/helper.c @@ -261,70 +261,6 @@ static int arm_gdb_set_svereg(CPUARMState *env, uint8_t *buf, int reg) } #endif /* TARGET_AARCH64 */ -/* - * Return the exception level to which exceptions should be taken - * via SVEAccessTrap. If an exception should be routed through - * AArch64.AdvSIMDFPAccessTrap, return 0; fp_exception_el should - * take care of raising that exception. - * C.f. the ARM pseudocode function CheckSVEEnabled. - */ -int sve_exception_el(CPUARMState *env, int el) -{ -#ifndef CONFIG_USER_ONLY - uint64_t hcr_el2 = arm_hcr_el2_eff(env); - - if (el <= 1 && (hcr_el2 & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { - bool disabled = false; - - /* - * The CPACR.ZEN controls traps to EL1: - * 0, 2 : trap EL0 and EL1 accesses - * 1 : trap only EL0 accesses - * 3 : trap no accesses - */ - if (!extract32(env->cp15.cpacr_el1, 16, 1)) { - disabled = true; - } else if (!extract32(env->cp15.cpacr_el1, 17, 1)) { - disabled = el == 0; - } - if (disabled) { - /* route_to_el2 */ - return hcr_el2 & HCR_TGE ? 2 : 1; - } - - /* Check CPACR.FPEN. */ - if (!extract32(env->cp15.cpacr_el1, 20, 1)) { - disabled = true; - } else if (!extract32(env->cp15.cpacr_el1, 21, 1)) { - disabled = el == 0; - } - if (disabled) { - return 0; - } - } - - /* - * CPTR_EL2. Since TZ and TFP are positive, - * they will be zero when EL2 is not present. - */ - if (el <= 2 && arm_is_el2_enabled(env)) { - if (env->cp15.cptr_el[2] & CPTR_TZ) { - return 2; - } - if (env->cp15.cptr_el[2] & CPTR_TFP) { - return 0; - } - } - - /* CPTR_EL3. Since EZ is negative we must check for EL3. */ - if (arm_feature(env, ARM_FEATURE_EL3) - && !(env->cp15.cptr_el[3] & CPTR_EZ)) { - return 3; - } -#endif - return 0; -} - void hw_watchpoint_update(ARMCPU *cpu, int n) { CPUARMState *env = &cpu->env; -- 2.26.2