From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9F664C43331 for ; Sat, 9 Nov 2019 03:59:06 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (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 4E262207FF for ; Sat, 9 Nov 2019 03:59:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=lca.pw header.i=@lca.pw header.b="MzM8LadG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4E262207FF Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lca.pw Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 06BACCC3; Sat, 9 Nov 2019 03:59:06 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 84733CBC for ; Sat, 9 Nov 2019 03:59:05 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-qk1-f195.google.com (mail-qk1-f195.google.com [209.85.222.195]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 1B42DEC for ; Sat, 9 Nov 2019 03:59:04 +0000 (UTC) Received: by mail-qk1-f195.google.com with SMTP id 71so6962994qkl.0 for ; Fri, 08 Nov 2019 19:59:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=aROgLuqmyQMn6bQ3dkRZULLKhNypYtMoFctyPNExrr8=; b=MzM8LadGws9kVWYfucgsQOARwUxQ0v14BoSsETtO0VfLCIibmC6dR1dP87tTDPKUlk eFNhdrVFtqdad+YCvvDGiAsYzWVzJJMTyxPB0AKHXvN9sOY31st+DBlz8wjty9Xlp2jH wOPof/LWVH3M5TRHLjS+87Dj7v/tEvyjOcTesEAWFG/UKvVCZ1/WcHgPO8LHBTv1D78c Sr+8omFbTtQ6peGcGzTjT8JTlgBT/X6PtdNUC9uJw9QGuAU22ygXn2BQ8peVT1OWcOP0 r419pcS9pTK7zB9DkuWTSQ9I+6gpnGesLFFEWKxTg7jekKuxHy/ca1BNweLNWjPBNXN2 fXRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=aROgLuqmyQMn6bQ3dkRZULLKhNypYtMoFctyPNExrr8=; b=d1RKkIynkjE4wDAYbM5zHhM0b3liSwIvzpSaPnXxDUr8eBS0/GLL5rp2pN1jMvOC9+ POecXnfnP7IxiZ97ZPEYXZYeNSVmDBLA6z/GTQ4UnGoT2qvl68VIA4yY0kA/SdBXQouv DvK4pGv+FG5cyHLCUPzcH8XIr36U7H2e7UGgL79BQewzxzdiG3kX56FGvi00dzWNv0WV x4exxeix4bvxJSzZHOdLcBuA7nbLQZxo+OKFhUQYGxcWIBC+e+jcKZiRSPn1gQkSAgxP 9YHLiZ88Xe4uB+nvrvy7HJhSBXMHlwE8UkXuEZ///UxGxfigyq9wpTy1R+KLwkfG4jIA OZjQ== X-Gm-Message-State: APjAAAU6d82Wj+Eo+TB6ppXAJhScdPpaGM4rwlg5zWQiXxfahcdQlYYA aZmFi85+/vUc3rbSPyYiW3RZcA== X-Google-Smtp-Source: APXvYqyJm/ueJQ86ESZKiEi2O0iWVfky5nDFQUUmL2RhwXagjqCuRNkA+VM2ExLU3ZBV76dbCqvABg== X-Received: by 2002:a05:620a:a0e:: with SMTP id i14mr355330qka.3.1573271943010; Fri, 08 Nov 2019 19:59:03 -0800 (PST) Received: from [192.168.1.153] (pool-71-184-117-43.bstnma.fios.verizon.net. [71.184.117.43]) by smtp.gmail.com with ESMTPSA id x65sm4183104qkd.15.2019.11.08.19.59.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 08 Nov 2019 19:59:02 -0800 (PST) Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3601.0.10\)) Subject: Re: [PATCH v2 1/1] iommu/vt-d: Add Kconfig option to enable/disable scalable mode From: Qian Cai In-Reply-To: <20191109034039.27964-1-baolu.lu@linux.intel.com> Date: Fri, 8 Nov 2019 22:59:01 -0500 Message-Id: References: <20191109034039.27964-1-baolu.lu@linux.intel.com> To: Lu Baolu X-Mailer: Apple Mail (2.3601.0.10) Cc: kevin.tian@intel.com, ashok.raj@intel.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, jacob.jun.pan@intel.com, David Woodhouse X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org Cgo+IE9uIE5vdiA4LCAyMDE5LCBhdCAxMDo0MCBQTSwgTHUgQmFvbHUgPGJhb2x1Lmx1QGxpbnV4 LmludGVsLmNvbT4gd3JvdGU6Cj4gCj4gVGhpcyBhZGRzIEtjb25maWcgb3B0aW9uIElOVEVMX0lP TU1VX1NDQUxBQkxFX01PREVfREVGQVVMVF9PTgo+IHRvIG1ha2UgaXQgZWFzaWVyIGZvciBkaXN0 cmlidXRpb25zIHRvIGVuYWJsZSBvciBkaXNhYmxlIHRoZQo+IEludGVsIElPTU1VIHNjYWxhYmxl IG1vZGUgYnkgZGVmYXVsdCBkdXJpbmcga2VybmVsIGJ1aWxkLgo+IAo+IFNpZ25lZC1vZmYtYnk6 IEx1IEJhb2x1IDxiYW9sdS5sdUBsaW51eC5pbnRlbC5jb20+Cj4gLS0tCj4gZHJpdmVycy9pb21t dS9LY29uZmlnICAgICAgIHwgOSArKysrKysrKysKPiBkcml2ZXJzL2lvbW11L2ludGVsLWlvbW11 LmMgfCA3ICsrKysrKy0KPiAyIGZpbGVzIGNoYW5nZWQsIDE1IGluc2VydGlvbnMoKyksIDEgZGVs ZXRpb24oLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9pb21tdS9LY29uZmlnIGIvZHJpdmVy cy9pb21tdS9LY29uZmlnCj4gaW5kZXggZTM4NDJlYWJjZmRkLi5mYmRmM2ZkMjkxZDkgMTAwNjQ0 Cj4gLS0tIGEvZHJpdmVycy9pb21tdS9LY29uZmlnCj4gKysrIGIvZHJpdmVycy9pb21tdS9LY29u ZmlnCj4gQEAgLTI0Miw2ICsyNDIsMTUgQEAgY29uZmlnIElOVEVMX0lPTU1VX0ZMT1BQWV9XQQo+ IAkgIHdvcmthcm91bmQgd2lsbCBzZXR1cCBhIDE6MSBtYXBwaW5nIGZvciB0aGUgZmlyc3QKPiAJ ICAxNk1pQiB0byBtYWtlIGZsb3BweSAoYW4gSVNBIGRldmljZSkgd29yay4KPiAKPiArY29uZmln IElOVEVMX0lPTU1VX1NDQUxBQkxFX01PREVfREVGQVVMVF9PTgo+ICsJcHJvbXB0ICJFbmFibGUg SW50ZWwgSU9NTVUgc2NhbGFibGUgbW9kZSBieSBkZWZhdWx0Igo+ICsJZGVwZW5kcyBvbiBJTlRF TF9JT01NVQo+ICsJaGVscAo+ICsJICBTZWxlY3RpbmcgdGhpcyBvcHRpb24gd2lsbCBlbmFibGUg dGhlIHNjYWxhYmxlIG1vZGUgaWYKPiArCSAgaGFyZHdhcmUgcHJlc2VudHMgdGhlIGNhcGFiaWxp dHkuIElmIHRoaXMgb3B0aW9uIGlzIG5vdAo+ICsJICBzZWxlY3RlZCwgc2NhbGFibGUgbW9kZSBz dXBwb3J0IGNvdWxkIGFsc28gYmUgZW5hYmxlZAo+ICsJICBieSBwYXNzaW5nIGludGVsX2lvbW11 PXNtX29uIHRvIHRoZSBrZXJuZWwuCgoKTWF5YmUgYSBzZW50ZW5jZSBvciB0d28gdG8gZGVzY3Jp YmUgd2hhdCB0aGUgc2NhbGFibGUgbW9kZSBpcyBpbiBsYXltYW4ncwp0ZXJtcyBjb3VsZCBiZSB1 c2VmdWwsIHNvIGRldmVsb3BlcnMgZG9u4oCZdCBuZWVkIHRvIHNlYXJjaCBhcm91bmQgZm9yIHRo ZQpLY29uZmlnIHNlbGVjdGlvbj8KCj4gKwo+IGNvbmZpZyBJUlFfUkVNQVAKPiAJYm9vbCAiU3Vw cG9ydCBmb3IgSW50ZXJydXB0IFJlbWFwcGluZyIKPiAJZGVwZW5kcyBvbiBYODZfNjQgJiYgWDg2 X0lPX0FQSUMgJiYgUENJX01TSSAmJiBBQ1BJCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvaW9tbXUv aW50ZWwtaW9tbXUuYyBiL2RyaXZlcnMvaW9tbXUvaW50ZWwtaW9tbXUuYwo+IGluZGV4IDZkYjZk OTY5ZTMxYy4uNjA1MWZlNzkwYzYxIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvaW9tbXUvaW50ZWwt aW9tbXUuYwo+ICsrKyBiL2RyaXZlcnMvaW9tbXUvaW50ZWwtaW9tbXUuYwo+IEBAIC0zNTUsOSAr MzU1LDE0IEBAIHN0YXRpYyBwaHlzX2FkZHJfdCBpbnRlbF9pb21tdV9pb3ZhX3RvX3BoeXMoc3Ry dWN0IGlvbW11X2RvbWFpbiAqZG9tYWluLAo+IGludCBkbWFyX2Rpc2FibGVkID0gMDsKPiAjZWxz ZQo+IGludCBkbWFyX2Rpc2FibGVkID0gMTsKPiAtI2VuZGlmIC8qQ09ORklHX0lOVEVMX0lPTU1V X0RFRkFVTFRfT04qLwo+ICsjZW5kaWYgLyogQ09ORklHX0lOVEVMX0lPTU1VX0RFRkFVTFRfT04g Ki8KPiAKPiArI2lmZGVmIElOVEVMX0lPTU1VX1NDQUxBQkxFX01PREVfREVGQVVMVF9PTgo+ICtp bnQgaW50ZWxfaW9tbXVfc20gPSAxOwo+ICsjZWxzZQo+IGludCBpbnRlbF9pb21tdV9zbTsKPiAr I2VuZGlmIC8qIElOVEVMX0lPTU1VX1NDQUxBQkxFX01PREVfREVGQVVMVF9PTiAqLwo+ICsKPiBp bnQgaW50ZWxfaW9tbXVfZW5hYmxlZCA9IDA7Cj4gRVhQT1JUX1NZTUJPTF9HUEwoaW50ZWxfaW9t bXVfZW5hYmxlZCk7Cj4gCj4gLS0gCj4gMi4xNy4xCj4gCj4gX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX18KPiBpb21tdSBtYWlsaW5nIGxpc3QKPiBpb21tdUBs aXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwo+IGh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9u Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2lvbW11CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwppb21tdSBtYWlsaW5nIGxpc3QKaW9tbXVAbGlzdHMubGludXgt Zm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4v bGlzdGluZm8vaW9tbXU=