From patchwork Thu Oct 22 13:39:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Beulich X-Patchwork-Id: 11851449 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 81DF516C0 for ; Thu, 22 Oct 2020 13:40:20 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 422DB20790 for ; Thu, 22 Oct 2020 13:40:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="SY7znojB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 422DB20790 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.10448.27763 (Exim 4.92) (envelope-from ) id 1kVao9-0003h5-2Q; Thu, 22 Oct 2020 13:39:09 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 10448.27763; Thu, 22 Oct 2020 13:39:09 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kVao8-0003gy-Va; Thu, 22 Oct 2020 13:39:08 +0000 Received: by outflank-mailman (input) for mailman id 10448; Thu, 22 Oct 2020 13:39:07 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kVao7-0003gm-Kp for xen-devel@lists.xenproject.org; Thu, 22 Oct 2020 13:39:07 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 0f973e6e-8983-43d6-8fe1-87ad82c7804e; Thu, 22 Oct 2020 13:39:07 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 4280FB03F; Thu, 22 Oct 2020 13:39:06 +0000 (UTC) Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kVao7-0003gm-Kp for xen-devel@lists.xenproject.org; Thu, 22 Oct 2020 13:39:07 +0000 X-Inumbo-ID: 0f973e6e-8983-43d6-8fe1-87ad82c7804e Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 0f973e6e-8983-43d6-8fe1-87ad82c7804e; Thu, 22 Oct 2020 13:39:07 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1603373946; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=3rDg9DSkuthC0rT6ckEwlAGdxHgxfASCErG7/P8qjFw=; b=SY7znojBY9fgniVHDfLv79vUMhdPibcCvRv22SzYo0p+hvE3RxBOzEvVkbkCTyRRCB0MuQ CNnCXaqrUPnM8KpbDXhKRL/knUTIE26VqaH6TpZmrjmEj+dk6pyYKPsOh3gU7+QVNX2Q3+ GLKiqojGUHzHjepj+t3LfYEvgCy4gQ0= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 4280FB03F; Thu, 22 Oct 2020 13:39:06 +0000 (UTC) To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , Wei Liu , =?utf-8?q?Roger_Pau_Monn=C3=A9?= From: Jan Beulich Subject: [PATCH] x86emul: increase FPU save area in test harness/fuzzer Message-ID: Date: Thu, 22 Oct 2020 15:39:07 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.12.1 MIME-Version: 1.0 Content-Language: en-US Running them on a system (or emulator) with AMX support requires this to be quite a bit larger than 8k, to avoid triggering the assert() in emul_test_init(). Bump all the way up to 16k right away. Signed-off-by: Jan Beulich Acked-by: Andrew Cooper --- Intel's Software Development Emulator properly reports XSAVE-related AMX CPUID data for Sapphire Rapids emulation as of 8.59.0. --- a/tools/tests/x86_emulator/x86-emulate.c +++ b/tools/tests/x86_emulator/x86-emulate.c @@ -33,7 +33,7 @@ uint32_t mxcsr_mask = 0x0000ffbf; struct cpuid_policy cp; -static char fpu_save_area[4096] __attribute__((__aligned__((64)))); +static char fpu_save_area[0x4000] __attribute__((__aligned__((64)))); static bool use_xsave; /*