From nobody Tue Feb 10 16:44:10 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1654384359; cv=none; d=zohomail.com; s=zohoarc; b=WVpjFd3RTpGsfuzoqMC0OdIrYBhOrMwonceoZPrJUfNuhOwB6kw0m8RoU39PwIYbXJslEKAquGkhoxf+w6hi6YJ/UZOY5TvWksUoo9Nhw8aYbiKjpI5jo8cFLB/2fTtC2xY8w6PaQOEeBhYtLJn1PNTtQwUfB3H3SNIWbJkX4B0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1654384359; h=Content-Transfer-Encoding:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=WuXf3mRvUoBgdBHIfYWUJJXxwNA49V6B0JhTPyJnUA4=; b=QSVrayW6KWsRn6XU1qZhhpaZ/1QPb536nDZmokdrsXO5AZEcBGyMTUgOEtkY+gST1Kf+ZJcD8CApReod36D8eoMHoJs4qW/7B6eIqbe5UdO316AHvWP6HwwfvYTmq9tL1+TtP4NAhAnk+nSLWYn8DVG4p9CUWEKEVr7Tr1jUmdM= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1654384359495167.05357839567523; Sat, 4 Jun 2022 16:12:39 -0700 (PDT) Received: from localhost ([::1]:58722 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nxcwf-0001tv-Ue for importer@patchew.org; Sat, 04 Jun 2022 19:12:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50266) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nxcv4-0008KZ-3W for qemu-devel@nongnu.org; Sat, 04 Jun 2022 19:10:58 -0400 Received: from mail-pg1-x529.google.com ([2607:f8b0:4864:20::529]:37436) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nxcuw-0004zj-3W for qemu-devel@nongnu.org; Sat, 04 Jun 2022 19:10:56 -0400 Received: by mail-pg1-x529.google.com with SMTP id h192so3236919pgc.4 for ; Sat, 04 Jun 2022 16:10:07 -0700 (PDT) Received: from bigtime.. ([2602:ae:1547:e101:250:b6ff:fe24:58ae]) by smtp.gmail.com with ESMTPSA id 184-20020a6302c1000000b003fcf1279c84sm5562151pgc.33.2022.06.04.16.10.06 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 Jun 2022 16:10:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=WuXf3mRvUoBgdBHIfYWUJJXxwNA49V6B0JhTPyJnUA4=; b=Wa9FxM1AS4PiwwH6hzszou6dMI7pPJGKNICZXvdEbdo25BL0XugoJWHi/7rQ7Btiw6 xn0vcYvyKVc55hEjU/xSDRtObHcUi4yB4PBqQb4Vm6SBdQT0XsiKxO0OiMqt+uCEoWMN EaotEqZpcdaYI6wBlw3DqBGHIks070z5ff587XYGnUZc+BDVV0yfkKW05Pryd4dnZSdj IzgbLy9xFGgv/UKZik86bgZiKfQqTOLPr5m+IdJwgHWxEbi1LVZ6ThINq6J+NVt8hvtE UjqrVYybI7D3tHBRnPcYDrY6Ws3slCLSeo7PqAogQK5QbSq+ZNlyOC4G0irqiRLZeD0N /vzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=WuXf3mRvUoBgdBHIfYWUJJXxwNA49V6B0JhTPyJnUA4=; b=GvebBjDz7dj9gaCnO/o+2Q2RRQzU7+MQEIxTFnkmJ+zN7gIWSqAw4jakigjXv9qHaW 65a79gCAW0wrdIbJTRpAoOOPGY5kx2yDwyOPVvfJASqfzruvWpy9LIRi+1UoX+P1s7nh puaxMjwVA5JvyaPC+YfEpBGn5sW9qsz+3sPfbhzN3RpHN6xDyVpHXQ2sazdvZe6z4ksD ZmGDv1bvL4knEyhWk1vM8EBi+v+gd/zuejO+erZWpVO2TxQTfdu0BZAt+w/njEA5vqiz 3I61g1fxHqGlFTwceQJWWw8Snce2zhYEgzTRI/tx432VkbXfyTPKMsrAy4F1fX3Hvvrs 0iKw== X-Gm-Message-State: AOAM5318czprJYcCARaQd26Hk5d8fSNe2K1wg3BqSupH9ckJUYhgZpC/ F5wyLTd0y93l9yOnjel6fYXQWywztqPlAA== X-Google-Smtp-Source: ABdhPJzZjqaPRCa54zEGpVpkRzxQbSimW9DzbR7LDDEoq4aCd0jnUbfd7XXiU82EnZ4T56hSbbJQbg== X-Received: by 2002:a05:6a00:16cf:b0:51b:5f55:9bc with SMTP id l15-20020a056a0016cf00b0051b5f5509bcmr16703314pfc.7.1654384206711; Sat, 04 Jun 2022 16:10:06 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 1/3] target/riscv: Set env->bins in gen_exception_illegal Date: Sat, 4 Jun 2022 23:10:02 +0000 Message-Id: <20220604231004.49990-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220604231004.49990-1-richard.henderson@linaro.org> References: <20220604231004.49990-1-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::529; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x529.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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1654384361017100003 Content-Type: text/plain; charset="utf-8" While we set env->bins when unwinding for ILLEGAL_INST, from e.g. csrrw, we weren't setting it for immediately illegal instructions. Add a testcase for mtval via both exception paths. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1060 Signed-off-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/translate.c | 2 + tests/tcg/riscv64/Makefile.softmmu-target | 21 +++++++++ tests/tcg/riscv64/issue1060.S | 53 +++++++++++++++++++++++ tests/tcg/riscv64/semihost.ld | 21 +++++++++ 4 files changed, 97 insertions(+) create mode 100644 tests/tcg/riscv64/Makefile.softmmu-target create mode 100644 tests/tcg/riscv64/issue1060.S create mode 100644 tests/tcg/riscv64/semihost.ld diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 55a4713af2..9196aa71db 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -238,6 +238,8 @@ static void generate_exception_mtval(DisasContext *ctx,= int excp) =20 static void gen_exception_illegal(DisasContext *ctx) { + tcg_gen_st_i32(tcg_constant_i32(ctx->opcode), cpu_env, + offsetof(CPURISCVState, bins)); generate_exception(ctx, RISCV_EXCP_ILLEGAL_INST); } =20 diff --git a/tests/tcg/riscv64/Makefile.softmmu-target b/tests/tcg/riscv64/= Makefile.softmmu-target new file mode 100644 index 0000000000..d51ece7023 --- /dev/null +++ b/tests/tcg/riscv64/Makefile.softmmu-target @@ -0,0 +1,21 @@ +# +# Aarch64 system tests +# + +TEST_SRC =3D $(SRC_PATH)/tests/tcg/riscv64 +VPATH +=3D $(TEST_SRC) + +LINK_SCRIPT =3D $(TEST_SRC)/semihost.ld +LDFLAGS =3D -T $(LINK_SCRIPT) +CFLAGS +=3D -g -Og + +%.o: %.S + $(CC) $(CFLAGS) $< -c -o $@ +%: %.o $(LINK_SCRIPT) + $(LD) $(LDFLAGS) $< -o $@ + +QEMU_OPTS +=3D -M virt -display none -semihosting -device loader,file=3D + +EXTRA_RUNS +=3D run-issue1060 +run-issue1060: issue1060 + $(call run-test, $<, $(QEMU) $(QEMU_OPTS)$<) diff --git a/tests/tcg/riscv64/issue1060.S b/tests/tcg/riscv64/issue1060.S new file mode 100644 index 0000000000..17b7fe1be2 --- /dev/null +++ b/tests/tcg/riscv64/issue1060.S @@ -0,0 +1,53 @@ + .option norvc + + .text + .global _start +_start: + lla t0, trap + csrw mtvec, t0 + + # These are all illegal instructions + csrw time, x0 + .insn i CUSTOM_0, 0, x0, x0, 0x321 + csrw time, x0 + .insn i CUSTOM_0, 0, x0, x0, 0x123 + csrw cycle, x0 + + # Success! + li a0, 0 + j _exit + +trap: + # When an instruction traps, compare it to the insn in memory. + csrr t0, mepc + csrr t1, mtval + lwu t2, 0(t0) + bne t1, t2, fail + + # Skip the insn and continue. + addi t0, t0, 4 + csrw mepc, t0 + mret + +fail: + li a0, 1 + +# Exit code in a0 +_exit: + lla a1, semiargs + li t0, 0x20026 # ADP_Stopped_ApplicationExit + sd t0, 0(a1) + sd a0, 8(a1) + li a0, 0x20 # TARGET_SYS_EXIT_EXTENDED + + # Semihosting call sequence + .balign 16 + slli zero, zero, 0x1f + ebreak + srai zero, zero, 0x7 + j . + + .data + .balign 16 +semiargs: + .space 16 diff --git a/tests/tcg/riscv64/semihost.ld b/tests/tcg/riscv64/semihost.ld new file mode 100644 index 0000000000..a59cc56b28 --- /dev/null +++ b/tests/tcg/riscv64/semihost.ld @@ -0,0 +1,21 @@ +ENTRY(_start) + +SECTIONS +{ + /* virt machine, RAM starts at 2gb */ + . =3D 0x80000000; + .text : { + *(.text) + } + .rodata : { + *(.rodata) + } + /* align r/w section to next 2mb */ + . =3D ALIGN(1 << 21); + .data : { + *(.data) + } + .bss : { + *(.bss) + } +} --=20 2.34.1