From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A778026F450 for ; Thu, 27 Feb 2025 18:45:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740681918; cv=none; b=RlJKkTmn2j1AxKnhMV4uNSHtNKfYYU8bND2umLPipRIcC7qmTpnpDR/jQvubFJqYGgEMspQImzcAJpKn9L9oCIk3S9MYy1QURHQjIEyKUXqTAGPZHDOjS5C39VvmKAkYoJleIH/wlFFB6zFFuGl4hjqnEfrZXi2+CHsPaYihVME= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740681918; c=relaxed/simple; bh=gxC4YpulTjL4LyXhFMns9rIvzhJlui2aMfofQzc2VGA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=V9alKDl/WWxGMejvsw70lBe3Gu2HWA9RLwM9TxR2BG1AqUahSc/0p0B0XhY2+3zMrIFwpzEQSwFdeR/dBTjdMcqJeYibaxast3uyHC8hA7B7JNlffk8G952Pk2SuTeGO3B1sWCyaF+p9G87GG9wjE/wzM6JDutldfBQrNAOSrZc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=RKvFxEzq; arc=none smtp.client-ip=198.175.65.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="RKvFxEzq" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1740681917; x=1772217917; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=gxC4YpulTjL4LyXhFMns9rIvzhJlui2aMfofQzc2VGA=; b=RKvFxEzqZ1oKzq13b/wo2MSSHxGkAQso1gbfVAFzHYIYTLIqY+ESE+J9 lo8N2tsoKpwh/emqETfFoncdvvfIQCR7I6DDuTxtzumv7l/1PcRS96TnY 9Z6ok8UE4AUKc6i93nKZB6WQazDI4XvBZpOTPojGsKgFy0Phvs3DQy6jn IHQubkLj/NAbOtT6HxN2zmacqO4yYsrfRsv4JLXf5b9mxImPigkDxUcM9 7r2db+H/fj0/z9cMi4rQ7UY9jq/PkGb81i5L7JeENH0IkFtJmqgVI0zcX eZM+YP3nfMTkv02dODljUnq9r0aJT3RekjA+YeNK/kXxz6WCzZTjubSdf w==; X-CSE-ConnectionGUID: Xf3AT+PnT2GyIPo0/VdN4A== X-CSE-MsgGUID: mdBPoQZHR3GJpksg+LCBlQ== X-IronPort-AV: E=McAfee;i="6700,10204,11358"; a="41720925" X-IronPort-AV: E=Sophos;i="6.13,320,1732608000"; d="scan'208";a="41720925" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2025 10:45:16 -0800 X-CSE-ConnectionGUID: wfJMc+3LS82MOF+1S9p++A== X-CSE-MsgGUID: OfFZEz4oT+Whyw4Bl0hvkQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.13,320,1732608000"; d="scan'208";a="117767455" Received: from cbae1-mobl.amr.corp.intel.com (HELO cbae1-mobl.intel.com) ([10.246.154.132]) by fmviesa009.fm.intel.com with ESMTP; 27 Feb 2025 10:45:15 -0800 From: "Chang S. Bae" To: linux-kernel@vger.kernel.org Cc: x86@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, chang.seok.bae@intel.com Subject: [PATCH RFC v1 11/11] selftests/x86/apx: Add APX test Date: Thu, 27 Feb 2025 10:44:56 -0800 Message-ID: <20250227184502.10288-12-chang.seok.bae@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250227184502.10288-1-chang.seok.bae@intel.com> References: <20250227184502.10288-1-chang.seok.bae@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The extended general-purpose registers for APX may contain random data, which is currently assumed by the xstate testing framework. This allows the testing of the new userspace feature using the common test code. Invoke the test entry function from apx.c after enumerating the state component and adding it to the support list Signed-off-by: Chang S. Bae --- The patch depends on the selftest xstate series, which was just merged into the x86/fpu branch: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=x86/fpu Here is the original series posting: https://lore.kernel.org/lkml/20250226010731.2456-1-chang.seok.bae@intel.com/ --- tools/testing/selftests/x86/Makefile | 3 ++- tools/testing/selftests/x86/apx.c | 10 ++++++++++ tools/testing/selftests/x86/xstate.c | 3 ++- tools/testing/selftests/x86/xstate.h | 1 + 4 files changed, 15 insertions(+), 2 deletions(-) create mode 100644 tools/testing/selftests/x86/apx.c diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile index 28422c32cc8f..f703fcfe9f7c 100644 --- a/tools/testing/selftests/x86/Makefile +++ b/tools/testing/selftests/x86/Makefile @@ -19,7 +19,7 @@ TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \ test_FCMOV test_FCOMI test_FISTTP \ vdso_restorer TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering \ - corrupt_xstate_header amx lam test_shadow_stack avx + corrupt_xstate_header amx lam test_shadow_stack avx apx # Some selftests require 32bit support enabled also on 64bit systems TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall @@ -136,3 +136,4 @@ $(OUTPUT)/nx_stack_64: CFLAGS += -Wl,-z,noexecstack $(OUTPUT)/avx_64: CFLAGS += -mno-avx -mno-avx512f $(OUTPUT)/amx_64: EXTRA_FILES += xstate.c $(OUTPUT)/avx_64: EXTRA_FILES += xstate.c +$(OUTPUT)/apx_64: EXTRA_FILES += xstate.c diff --git a/tools/testing/selftests/x86/apx.c b/tools/testing/selftests/x86/apx.c new file mode 100644 index 000000000000..d9c8d41b8c5a --- /dev/null +++ b/tools/testing/selftests/x86/apx.c @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 + +#define _GNU_SOURCE + +#include "xstate.h" + +int main(void) +{ + test_xstate(XFEATURE_APX); +} diff --git a/tools/testing/selftests/x86/xstate.c b/tools/testing/selftests/x86/xstate.c index 23c1d6c964ea..97fe4bd8bc77 100644 --- a/tools/testing/selftests/x86/xstate.c +++ b/tools/testing/selftests/x86/xstate.c @@ -31,7 +31,8 @@ (1 << XFEATURE_OPMASK) | \ (1 << XFEATURE_ZMM_Hi256) | \ (1 << XFEATURE_Hi16_ZMM) | \ - (1 << XFEATURE_XTILEDATA)) + (1 << XFEATURE_XTILEDATA) | \ + (1 << XFEATURE_APX)) static inline uint64_t xgetbv(uint32_t index) { diff --git a/tools/testing/selftests/x86/xstate.h b/tools/testing/selftests/x86/xstate.h index 42af36ec852f..f3c25193a3be 100644 --- a/tools/testing/selftests/x86/xstate.h +++ b/tools/testing/selftests/x86/xstate.h @@ -33,6 +33,7 @@ enum xfeature { XFEATURE_RSRVD_COMP_16, XFEATURE_XTILECFG, XFEATURE_XTILEDATA, + XFEATURE_APX, XFEATURE_MAX, }; -- 2.45.2