From nobody Fri Apr 19 13:14:24 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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; dmarc=fail(p=none dis=none) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1634094021329497.9026459421092; Tue, 12 Oct 2021 20:00:21 -0700 (PDT) Received: from localhost ([::1]:60264 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1maUVA-0002t6-6z for importer@patchew.org; Tue, 12 Oct 2021 23:00:20 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57058) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1maUHy-0004wo-D8 for qemu-devel@nongnu.org; Tue, 12 Oct 2021 22:46:42 -0400 Received: from mail-pf1-x431.google.com ([2607:f8b0:4864:20::431]:46723) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1maUHw-00056N-Qw for qemu-devel@nongnu.org; Tue, 12 Oct 2021 22:46:42 -0400 Received: by mail-pf1-x431.google.com with SMTP id t15so1120425pfl.13 for ; Tue, 12 Oct 2021 19:46:39 -0700 (PDT) Received: from localhost.localdomain ([71.212.134.125]) by smtp.gmail.com with ESMTPSA id qe17sm4855014pjb.39.2021.10.12.19.46.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Oct 2021 19:46:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=jfz53S3QlKXNPBsRIkUXBiTrLPBdQUAc4SLrCyr0OTo=; b=TyH11BbEZlhZZ9CwLFfuKqI5Slkl3q8NgO2ONI2unalRU205XAqYLYiggtzAHObMah Yh2m2uiMIaOTnLzcAY1dkt+VN+AtrwVRE2EIHmMWIQfkqVD+GmgnEWdDN7v0+hYS2Obm vwjQvMgdanDVN93HsVSLX3ZnsKcqsWVuLnRObWWs1N2D3nYm4etBfJMvM0lV2pWUURoB 3zifmzISTh5CxScwTJXj4vyBCCq9PBuYhds1LdAdZjAKWOeYtwRa8/BkHfB9kr2yIHhi icW3lnlsaL9cF2W2Aai5aK+uk1/vvPOSHiV9PrL1G4skbHlG8Lm/Weuj34duCD7jmonF aECg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=jfz53S3QlKXNPBsRIkUXBiTrLPBdQUAc4SLrCyr0OTo=; b=Baj7+qWkr/pbMRJkPOqxcjftlXkwiMeE6OFdkJ3nC21BzVMjCNzb2rJBOVnoRkBwDv Ar/vpCiPn4DLOWZcUUrCxiwENZy2Tw1Bgb/dIPr35NCpl54Ttq+JXB6bbXi+bXo+75re plsfQbRKDeEwt77hzQOdUwYMY4aBSXoRxOd9x6BePKxcwz3wDSe+EBI85/o3Y1QLPcjh Uqew9mRmVRi6V3F8x+lo1J6AWtrm+ImOZURYHbsYty2tazti05+4n9OL9Gma4hhG7xmg Zi65YIAsc+kjd48287V7yj7dW+DdVGn2c/Of6PzPjutrww0qgwNJd1TT4WZaGxJKFRRc P/3g== X-Gm-Message-State: AOAM530TA9QOFkyDcwPRpwDrFnxRbch60FkB61VBWENT5BS1ehwMp7aj rJ8pxqHTT/W+tmUUnht/OGE9oxKOBfM= X-Google-Smtp-Source: ABdhPJx6rqXrPQr6y4yzMuTZm2Ro76uZBz/D8zl582smojHHwRxpGSMsqC5HkFvVxnOxKvdZnQy5Hg== X-Received: by 2002:a63:b214:: with SMTP id x20mr25777738pge.460.1634093198930; Tue, 12 Oct 2021 19:46:38 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v4 30/48] tcg: Add helper_unaligned_{ld, st} for user-only sigbus Date: Tue, 12 Oct 2021 19:45:49 -0700 Message-Id: <20211013024607.731881-31-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211013024607.731881-1-richard.henderson@linaro.org> References: <20211013024607.731881-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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; Received-SPF: pass client-ip=2607:f8b0:4864:20::431; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x431.google.com 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, RCVD_IN_DNSWL_NONE=-0.0001, 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: Peter Maydell Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1634094021715100001 Content-Type: text/plain; charset="utf-8" To be called from tcg generated code on hosts that support unaligned accesses natively, in response to an access that is supposed to be aligned. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- include/tcg/tcg-ldst.h | 5 +++++ accel/tcg/user-exec.c | 11 +++++++++++ 2 files changed, 16 insertions(+) diff --git a/include/tcg/tcg-ldst.h b/include/tcg/tcg-ldst.h index 8c86365611..bf40942de4 100644 --- a/include/tcg/tcg-ldst.h +++ b/include/tcg/tcg-ldst.h @@ -70,5 +70,10 @@ void helper_be_stl_mmu(CPUArchState *env, target_ulong a= ddr, uint32_t val, void helper_be_stq_mmu(CPUArchState *env, target_ulong addr, uint64_t val, MemOpIdx oi, uintptr_t retaddr); =20 +#else + +void QEMU_NORETURN helper_unaligned_ld(CPUArchState *env, target_ulong add= r); +void QEMU_NORETURN helper_unaligned_st(CPUArchState *env, target_ulong add= r); + #endif /* CONFIG_SOFTMMU */ #endif /* TCG_LDST_H */ diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index 7d50dd54f6..0473ead5ab 100644 --- a/accel/tcg/user-exec.c +++ b/accel/tcg/user-exec.c @@ -27,6 +27,7 @@ #include "exec/helper-proto.h" #include "qemu/atomic128.h" #include "trace/trace-root.h" +#include "tcg/tcg-ldst.h" #include "internal.h" =20 __thread uintptr_t helper_retaddr; @@ -217,6 +218,16 @@ static void validate_memop(MemOpIdx oi, MemOp expected) #endif } =20 +void helper_unaligned_ld(CPUArchState *env, target_ulong addr) +{ + cpu_loop_exit_sigbus(env_cpu(env), addr, MMU_DATA_LOAD, GETPC()); +} + +void helper_unaligned_st(CPUArchState *env, target_ulong addr) +{ + cpu_loop_exit_sigbus(env_cpu(env), addr, MMU_DATA_STORE, GETPC()); +} + static void *cpu_mmu_lookup(CPUArchState *env, target_ulong addr, MemOpIdx oi, uintptr_t ra, MMUAccessType type) { --=20 2.25.1