From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (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 8A3E83B2FF6; Tue, 18 Aug 2026 09:04:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787043858; cv=none; b=YNpZS+1fv8kmkfW9r+hlz0Q7vX6cPKk9ClnUpOuRGs/nYkUegnA97BAyUO6ODS8uef4Oe5sODa7zDWjObakI7yDVl5SmcYRFPS+8PpJGmABbhnhwD2fpz4IrmifpemjkGGEqrZEkT4415hJcVin3dZHw8ddTKul6jxGF65ibYgM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787043858; c=relaxed/simple; bh=gn3bG2uXjTB7/Gkv4zTxm+GkrW+QAtZDzStdA9fRYB8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=dyOTHUvE03SpHUGX+PJ3q1WUQ9DdT5G6a7QMKVqvfXX0Jq7sxZKB7UqEiIqbjUyuv45bCZJ+1wYSEjxsLbIQZS9qkza0Rp/6HtVWSvzKlWeLS8HNxzLPFvZ3CiGzk+Wzdez/FjK1FD0onBgqhgcVBTdoETAWo06LJ9f2rB+cF0c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=VBSPApZF; arc=none smtp.client-ip=192.198.163.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="VBSPApZF" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1787043857; x=1818579857; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=gn3bG2uXjTB7/Gkv4zTxm+GkrW+QAtZDzStdA9fRYB8=; b=VBSPApZF3+iAw732nWSZ15H8l5Jul34esnjlnb2PvzdJUVYAsEiPfiAy 3JlAZG6OfCLnWB7Jm+7YMW3t1A849k6cV7d2HprHiLpJpjFHM7VtTejOA RMABB1i7uPku6ZQQ+owt8GX3PBcy1Q2nRsVGvAGudkbFGsoTycvyfC1ML Pm+/I7UMSeo0z71rLqVDjxpt7ZjtnssZsC12rAyaAS8xT9PTecRfodIAX 4E8Mj/DrhI9/swtZP0ft+TPINIION7g5GLq25cwdhUMX+Clidr2C00bay fObCvuFRH5Vrwhc4XKvdFmPP+3/ZYftRELCTON8yBuuaND65CLVTTen6T g==; X-CSE-ConnectionGUID: flNv7tleQv+CBpwmgmq/NQ== X-CSE-MsgGUID: h+tldZpdQE+xiJ9a1fqaDg== X-IronPort-AV: E=McAfee;i="6800,10657,11878"; a="86647895" X-IronPort-AV: E=Sophos;i="6.25,230,1779174000"; d="scan'208";a="86647895" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2026 02:04:16 -0700 X-CSE-ConnectionGUID: /AXHM77yStGvCGsM2346zQ== X-CSE-MsgGUID: jTuxdOU9T0WH7qo9mXzWyA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,230,1779174000"; d="scan'208";a="265202934" Received: from unknown (HELO [10.238.2.33]) ([10.238.2.33]) by orviesa007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2026 02:04:11 -0700 Message-ID: Date: Tue, 18 Aug 2026 17:04:08 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v14 17/22] KVM: selftests: Set entry point for TDX guest code To: Lisa Wang Cc: Andrew Jones , Ackerley Tng , Chao Gao , Chenyi Qiang , Dave Hansen , Erdem Aktas , Ira Weiny , Isaku Yamahata , Kiryl Shutsemau , linux-kselftest@vger.kernel.org, Paolo Bonzini , "Pratik R. Sampat" , Reinette Chatre , Rick Edgecombe , Roger Wang , Ryan Afranji , Sagi Shahar , Sean Christopherson , Shuah Khan , Xiaoyao Li , Oliver Upton , Jeremiah McReynolds , kvm@vger.kernel.org, linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org, x86@kernel.org References: <20260722-tdx-selftests-v14-0-15ad654a50db@google.com> <20260722-tdx-selftests-v14-17-15ad654a50db@google.com> Content-Language: en-US From: Binbin Wu In-Reply-To: <20260722-tdx-selftests-v14-17-15ad654a50db@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 7/23/2026 7:13 AM, Lisa Wang wrote: > From: Sagi Shahar > > Since the rip register is inaccessible for TDX VMs, we need a different > way to set the guest entry point for TDX VMs. This is done by writing > the guest code address to a predefined location in the guest memory and > loading it into rip as part of the TDX boot code. > > Signed-off-by: Sagi Shahar > Signed-off-by: Lisa Wang Reviewed-by: Binbin Wu