From nobody Sun Sep 28 17:06:21 2025 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=1758567732; cv=none; d=zohomail.com; s=zohoarc; b=OqbFxyDQ3ZuFXi79nw8inmqLcW8Oc42GCeRFR2RUok6hGA9JQjA3rgL/VIz6rtdvGRJcGiv0Wf5Y8glNKACbuVKpRdmH/G8pD8Riu4s0JUoxmUrGcBl5vjW3kmvmqqilHlgPwHqfV7kRJLo1oXBv0LU1YhlsJDNKPUaul+1SgKg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1758567732; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=55ummCXHlN27uJsHHRoko5hx4ehNW7kEFeS5FsKkEGI=; b=XzuUzMYtfl7PFhV3yigK/PRdGOypDrNeiHg68lsULx+y8b6LyjefO2tt1uI6GC766Vc66ZDYWuADW30q4zaIU1KBqRvpit6KaErQBz2nJggEaOXLhgOZxIhKh7xfSbBWIZwoX8REMpXTtztDNP7dVrGxxVuEm5ITOx6Hwk+C3/0= 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 1758567732297625.7407272961417; Mon, 22 Sep 2025 12:02:12 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1v0ljQ-0003Yi-U4; Mon, 22 Sep 2025 14:57:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1v0lga-0006EL-6T for qemu-devel@nongnu.org; Mon, 22 Sep 2025 14:54:54 -0400 Received: from mail-pl1-x631.google.com ([2607:f8b0:4864:20::631]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1v0lfX-00053n-6H for qemu-devel@nongnu.org; Mon, 22 Sep 2025 14:54:51 -0400 Received: by mail-pl1-x631.google.com with SMTP id d9443c01a7336-2698d47e776so34672585ad.1 for ; Mon, 22 Sep 2025 11:53:46 -0700 (PDT) Received: from stoup.. ([71.212.157.132]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2698018a472sm138554795ad.58.2025.09.22.11.53.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Sep 2025 11:53:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1758567225; x=1759172025; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=55ummCXHlN27uJsHHRoko5hx4ehNW7kEFeS5FsKkEGI=; b=RvYxoAzsqAhTckbtnVrKiUZLsj8zYgK+zo0PzKA0H2M6dvo9B/P7jEBW1eCNzdrxra AQp8/8O5DzrIPuPqP9vcUjnx2yh8XhWJWhOBPQl/tz1sbKBlMUTxnzuA3JizBxpq8QQW 5836M0rkFl80JlyFqcBpXHbKsCSMvYINPGREApodlUfZH3tT5dOGxtOxJ8126SqIv9LD pdwm72qCookOULa7d/6a7mFwlPQdqlZS2iutxCzL/Yt8HM4DNdRdkwko26jfYInFG/ZT 06IXpAvGpYdO1AGbXoMkuNHlQbm0OzEolT+n9xqmOy/uyh7dgYtOnVVWY15AJVhL1qVC PWiw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758567225; x=1759172025; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=55ummCXHlN27uJsHHRoko5hx4ehNW7kEFeS5FsKkEGI=; b=vbJaubJ/GsLQxnYuq/gR5jsk55Zb4xjszJMsgp0xnY9QUwC5zMoNcB/jjEB/82O0ug iwJ9g4aHS1S9WvlLNnGvfDYCw0q79Ld2NK6wPb6pLf7M40TdqIUvAc4epnxLbHYtOLnr Y/W8QucVsFvDg1HzcPw3AT3E6JOPKD5bZByVo2ZYAyS+aw5Zg5GUW785dki6zI+zgmSJ CYQWzMRM1HjreBuDmbkIswMV3Grf3PgW8UNgaUy7shgKXgufGKYLshtQ7GgegonsNJQ2 gw18C66vzMRzdx8CExogSn/Pj71beirOxFuHWBNpRYsQlq5stDXCdN+OuMyGSLAgVvSa dTGQ== X-Gm-Message-State: AOJu0Yzo4G9gELfxEC8ZR5ZrUJibRo/hBzdCoe92HbGmCvmnPljuClLi ywm30hagltq6HpFMSKv8LO7IPv1/xAYeUZWkLctEcOE7yiqbkA60pbwr5pjm9TbUy7lep+ZImOs lQO8H X-Gm-Gg: ASbGncsf/RSiyw+6+Czg2Fzxe+SAu1vhiZd/ZpVYWeYti8gDuUY6T/QrLYa63QdLWg5 q+FMmUfRwhmtZOVxoin226Tx5bnDu3/U07IQERsboisRKPdlo8UedzBXFh4/ihYmgo0rZVRAaeq GDF38KNEkeWb8C6XiXRxL2V0Ps96fAEI08HoAM0J1zp4alRzj46jrhxK94Y+GnMBgdEPeRW/F45 amIPSmhQ3LjUSGdmqZgQUjdQ0Y9hzxt4f11WgMpG0NV9e4eRFE9XNpnY6YHiO7M3maA4orOTbPw EpkkD7AQWxcS+jrqv6Js45+k/APARlC9OCFFAHHaLmUGwIaQKpvtyPLCjiK2M1KLSMMPMXbPKuA h+aeZVcf5Tqn5LvxTZytp7MQ2g6mO X-Google-Smtp-Source: AGHT+IF1VSV3z7bnoj3CcGivDv+iMFSlhJf4md7j3nUnfgDksHmXJDrRAkw8tL0W7ey9x7GN/nbNRA== X-Received: by 2002:a17:902:d512:b0:278:9051:8ea5 with SMTP id d9443c01a7336-278905190dfmr56385015ad.21.1758567225099; Mon, 22 Sep 2025 11:53:45 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Pierrick Bouvier Subject: [PATCH v5 75/76] tests/tcg/aarch64: Add gcspushm Date: Mon, 22 Sep 2025 11:49:23 -0700 Message-ID: <20250922184924.2754205-76-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250922184924.2754205-1-richard.henderson@linaro.org> References: <20250922184924.2754205-1-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::631; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x631.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: 2.1.29 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-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1758567734243116600 Content-Type: text/plain; charset="utf-8" Validate successful and trapped executions of GCSPUSHM, GCSPOPM. Reviewed-by: Pierrick Bouvier Signed-off-by: Richard Henderson --- tests/tcg/aarch64/gcspushm.c | 71 +++++++++++++++++++++++++++++++ tests/tcg/aarch64/Makefile.target | 2 +- 2 files changed, 72 insertions(+), 1 deletion(-) create mode 100644 tests/tcg/aarch64/gcspushm.c diff --git a/tests/tcg/aarch64/gcspushm.c b/tests/tcg/aarch64/gcspushm.c new file mode 100644 index 0000000000..c330417a2f --- /dev/null +++ b/tests/tcg/aarch64/gcspushm.c @@ -0,0 +1,71 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gcs.h" + + +#define GCSPUSHM "sys #3, c7, c7, #0, %[push]" +#define GCSPOPM "sysl %[pop], #3, c7, c7, #1" + +static void test_sigsegv(int sig, siginfo_t *info, void *vuc) +{ + ucontext_t *uc =3D vuc; + uint64_t inst_sigsegv; + + __asm__("adr %0, inst_sigsegv" : "=3Dr"(inst_sigsegv)); + assert(uc->uc_mcontext.pc =3D=3D inst_sigsegv); + assert(info->si_code =3D=3D SEGV_CPERR); + /* TODO: Dig for ESR and verify syndrome. */ + uc->uc_mcontext.pc +=3D 4; +} + +static void test_sigill(int sig, siginfo_t *info, void *vuc) +{ + ucontext_t *uc =3D vuc; + uint64_t inst_sigill; + + __asm__("adr %0, inst_sigill" : "=3Dr"(inst_sigill)); + assert(uc->uc_mcontext.pc =3D=3D inst_sigill); + assert(info->si_code =3D=3D ILL_ILLOPC); + uc->uc_mcontext.pc +=3D 4; +} + +int main() +{ + struct sigaction sa =3D { .sa_flags =3D SA_SIGINFO }; + uint64_t old, new; + + sa.sa_sigaction =3D test_sigsegv; + if (sigaction(SIGSEGV, &sa, NULL) < 0) { + perror("sigaction"); + exit(1); + } + + sa.sa_sigaction =3D test_sigill; + if (sigaction(SIGILL, &sa, NULL) < 0) { + perror("sigaction"); + exit(1); + } + + /* Pushm is disabled -- SIGILL via EC_SYSTEMREGISTERTRAP */ + asm volatile("inst_sigill:\t" GCSPUSHM + : : [push] "r" (1)); + + enable_gcs(PR_SHADOW_STACK_PUSH); + + /* Valid value -- low 2 bits clear */ + old =3D 0xdeadbeeffeedcaec; + asm volatile(GCSPUSHM "\n\t" GCSPOPM + : [pop] "=3Dr" (new) + : [push] "r" (old) + : "memory"); + assert(old =3D=3D new); + + /* Invalid value -- SIGSEGV via EC_GCS */ + asm volatile(GCSPUSHM "\n" + "inst_sigsegv:\t" GCSPOPM + : [pop] "=3Dr" (new) + : [push] "r" (1) + : "memory"); + + exit(0); +} diff --git a/tests/tcg/aarch64/Makefile.target b/tests/tcg/aarch64/Makefile= .target index 5e1b3a3385..fddb7bc9cd 100644 --- a/tests/tcg/aarch64/Makefile.target +++ b/tests/tcg/aarch64/Makefile.target @@ -76,7 +76,7 @@ $(SME_TESTS): CFLAGS +=3D $(CROSS_AS_HAS_ARMV9_SME) endif =20 # GCS Tests -GCS_TESTS +=3D gcsstr +GCS_TESTS +=3D gcsstr gcspushm AARCH64_TESTS +=3D $(GCS_TESTS) $(GCS_TESTS): gcs.h =20 --=20 2.43.0