From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (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 DEA041F606; Wed, 27 Mar 2024 04:15:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711512923; cv=none; b=uNQzGXlRxZ13T+80uYNY5sNPTlWmeY6j44Oz0E4y5m74mTicQr/Rn7Vq/Pk+4Hdwrtn/MwBadwIZGWFIJ75dKqsdVEoW+aZt+VNUtZRglSq0cNNGeVOuOvJRtTl6Tu4GUOY4yN296cXcBJOUCLgLUmQfRksplRRttDmTVAKGwT8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711512923; c=relaxed/simple; bh=qB/KEL44AGHMfXjIlk8PCDDNe1jhwM4n+f9N6et7kDk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=kkXASn+W3GdcS/ojxpF5Eotf2ctiArkQ03+hcy6Obe1IQuyFcF+RkKoxwIgnUrj3JCEFUu6LWv/lIrefyxul0G6Z/kYpMGVmNVRw4uz4UXgC/TiS2lhjX46qF+6nlV/kyoibVddf784lZanc0BzmeMoCniJ3uuJh2ujrieK4nLo= 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=Q5bA11QD; arc=none smtp.client-ip=192.198.163.19 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="Q5bA11QD" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1711512921; x=1743048921; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=qB/KEL44AGHMfXjIlk8PCDDNe1jhwM4n+f9N6et7kDk=; b=Q5bA11QDEUFWH1u5KsRUPxC9bVhhXyVjqhb5f7K66TVriSXnhRatwg1K MWgjajyeLlEJqTgu13aEBjx+QC9KyFinc6KLfo3t8oCRdL43ImTKPlF02 HwwhjdR1YS4Sspcfb0nm53e/KSQTSN8oe147x4F/D0MHaEuIdKvd7Rda7 8OdDIZcYAIR737XVC/CkaU2kiv3+giCnZKdCuvWpBLqwRU9LSiZvy0Gje xHArvJtzn5P9F8lk6wkymJ5ogNEh177J9oBKbSrsd6lydlfNhZ5WxkZQd 1xbgRXslZ1/xPjZPLgc059iHX5y/jpt5McKGmJtVnXX22+o0aN+NKniwU A==; X-CSE-ConnectionGUID: RPj1Og3HSHesU9lzgFkQ9A== X-CSE-MsgGUID: XktGjLIJSjOugUKM/MDRmg== X-IronPort-AV: E=McAfee;i="6600,9927,11025"; a="6457968" X-IronPort-AV: E=Sophos;i="6.07,157,1708416000"; d="scan'208";a="6457968" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Mar 2024 21:15:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,157,1708416000"; d="scan'208";a="20891413" Received: from ls.sc.intel.com (HELO localhost) ([172.25.112.31]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Mar 2024 21:15:19 -0700 Date: Tue, 26 Mar 2024 21:15:19 -0700 From: Isaku Yamahata To: "Yin, Fengwei" Cc: isaku.yamahata@intel.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, isaku.yamahata@gmail.com, Paolo Bonzini , erdemaktas@google.com, Sean Christopherson , Sagi Shahar , Kai Huang , chen.bo@intel.com, hang.yuan@intel.com, tina.zhang@intel.com, "Li, Xiaoyao" , isaku.yamahata@linux.intel.com Subject: Re: [PATCH v8 00/14] KVM TDX: TDP MMU: large page support Message-ID: <20240327041519.GD2444378@ls.amr.corp.intel.com> References: <8f7735aa-517f-4bb3-8e33-d58a27c2a822@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <8f7735aa-517f-4bb3-8e33-d58a27c2a822@intel.com> On Wed, Mar 27, 2024 at 08:53:50AM +0800, "Yin, Fengwei" wrote: > Hi Isaku, > > On 2/26/2024 4:29 PM, isaku.yamahata@intel.com wrote: > > From: Isaku Yamahata > > > > This patch series is based on "v19 KVM TDX: basic feature support". It > > implements large page support for TDP MMU by allowing populating of the large > > page and splitting it when necessary. > To test the hugepage for TDX guest, we need to apply Qemu patch > from Xiaoyao: > https://lore.kernel.org/qemu-devel/20231115071519.2864957-4-xiaoyao.li@intel.com/ > > According to Xiaoyao, it's still under discussion. So he didn't > send updated version patch. For folks want to try this series, > it may be better to mention above link in this cover letter? Makes sense. Let me include it from the next versions. > Test in my side showed several benchmarks got 10+% performance > gain which is really nice. So: So nice. > Tested-by: Yin Fengwei Thanks, -- Isaku Yamahata