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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0CC64C4332F for ; Wed, 8 Nov 2023 17:27:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232020AbjKHR1y (ORCPT ); Wed, 8 Nov 2023 12:27:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229558AbjKHR1x (ORCPT ); Wed, 8 Nov 2023 12:27:53 -0500 Received: from smtp-fw-80008.amazon.com (smtp-fw-80008.amazon.com [99.78.197.219]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15C7610D9; Wed, 8 Nov 2023 09:27:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1699464471; x=1731000471; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=hBzmNII0I3GifFKe/JRW/XiwCLaYSx9NjN5qNg4RJqU=; b=OUC5VGJVVKj0M8aIcUJUnKeSGSFRbmu1t3xOj2kZjIo7+A55lauE3qPb w7K6hAFpg7Wq3XSQnrKuwtnNpL/blB1x4m91l4+fxwzHQCUN88czUYKF0 v4FSZe23qXBSQjh/oKdcZEX/85veYnMNDV3Wf9qVqMWQI5WtsAlqYyvjo k=; X-IronPort-AV: E=Sophos;i="6.03,286,1694736000"; d="scan'208";a="42137507" Received: from pdx4-co-svc-p1-lb2-vlan3.amazon.com (HELO email-inbound-relay-iad-1a-m6i4x-366646a6.us-east-1.amazon.com) ([10.25.36.214]) by smtp-border-fw-80008.pdx80.corp.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Nov 2023 17:27:47 +0000 Received: from smtpout.prod.us-west-2.prod.farcaster.email.amazon.dev (iad7-ws-svc-p70-lb3-vlan2.iad.amazon.com [10.32.235.34]) by email-inbound-relay-iad-1a-m6i4x-366646a6.us-east-1.amazon.com (Postfix) with ESMTPS id 83739A0CD9; Wed, 8 Nov 2023 17:27:43 +0000 (UTC) Received: from EX19MTAUWB002.ant.amazon.com [10.0.21.151:49948] by smtpin.naws.us-west-2.prod.farcaster.email.amazon.dev [10.0.3.26:2525] with esmtp (Farcaster) id fda2a43b-2f90-4542-9a2c-16f8fb6acca0; Wed, 8 Nov 2023 17:27:42 +0000 (UTC) X-Farcaster-Flow-ID: fda2a43b-2f90-4542-9a2c-16f8fb6acca0 Received: from EX19D020UWC004.ant.amazon.com (10.13.138.149) by EX19MTAUWB002.ant.amazon.com (10.250.64.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.39; Wed, 8 Nov 2023 17:27:40 +0000 Received: from [0.0.0.0] (10.253.83.51) by EX19D020UWC004.ant.amazon.com (10.13.138.149) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.39; Wed, 8 Nov 2023 17:27:36 +0000 Message-ID: Date: Wed, 8 Nov 2023 18:27:34 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC 29/33] KVM: VMX: Save instruction length on EPT violation Content-Language: en-US To: Sean Christopherson , Nicolas Saenz Julienne CC: , , , , , , , , , , , , , References: <20231108111806.92604-1-nsaenz@amazon.com> <20231108111806.92604-30-nsaenz@amazon.com> From: Alexander Graf In-Reply-To: X-Originating-IP: [10.253.83.51] X-ClientProxiedBy: EX19D040UWA004.ant.amazon.com (10.13.139.93) To EX19D020UWC004.ant.amazon.com (10.13.138.149) Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ck9uIDA4LjExLjIzIDE4OjIwLCBTZWFuIENocmlzdG9waGVyc29uIHdyb3RlOgo+IE9uIFdlZCwg Tm92IDA4LCAyMDIzLCBOaWNvbGFzIFNhZW56IEp1bGllbm5lIHdyb3RlOgo+PiBTYXZlIHRoZSBs ZW5ndGggb2YgdGhlIGluc3RydWN0aW9uIHRoYXQgdHJpZ2dlcmVkIGFuIEVQVCB2aW9sYXRpb24g aW4KPj4gc3RydWN0IGt2bV92Y3B1X2FyY2guIFRoaXMgd2lsbCBiZSB1c2VkIHRvIHBvcHVsYXRl IEh5cGVyLVYgVlNNIG1lbW9yeQo+PiBpbnRlcmNlcHQgbWVzc2FnZXMuCj4gVGhpcyBpcyBzaWxs eSBhbmQgdW5uZWNlc3NhcmlseSBvYmZ1c2NhdGVzICp3aHkqIChhcyBteSByZXNwb25zZSByZWdh cmRpbmcgU1ZNCj4gc2hvd3MpLCBpLmUuIHRoYXQgdGhpcyBpcyAibmVlZGVkIiBiZWN1YXNlIHRo ZSB2YWx1ZSBpcyBjb25zdW1lZCBieSBhICpkaWZmZXJlbnQqCj4gdkNQVSwgbm90IGJlY2F1c2Ug b2YgcGVyZm9ybWFuY2UgY29uY2VybnMuCj4KPiBJdCdzIGFsc28gYnJva2VuLCBBRkFJQ1Qgbm90 aGluZyBwcmV2ZW50cyB0aGUgaW50ZXJjZXB0ZWQgdkNQVSBmcm9tIGhpdHRpbmcgYQo+IGRpZmZl cmVudCBFUFQgdmlvbGF0aW9uIGJlZm9yZSB0aGUgdGFyZ2V0IHZDUFUgY29uc3VtZXMgZXhpdF9p bnN0cnVjdGlvbl9sZW4uCj4KPiBIb2x5IGNvdy4gIEFsbCBvZiBkZWxpdmVyX2dwYV9pbnRlcmNl cHQoKSBpcyB3aWxkbHkgdW5zYWZlLiAgQXNpZGUgZnJvbSByYWNlCj4gY29uZGl0aW9ucywgd2hp Y2ggaW4gYW5kIG9mIHRoZW1zZWx2ZXMgYXJlIGEgbm9uLXN0YXJ0ZXIsIG5vdGhpbmcgZ3VhcmFu dGVlcyB0aGF0Cj4gdGhlIGludGVyY2VwdGVkIHZDUFUgYWN0dWFsbHkgY2FjaGVkIGFsbCBvZiB0 aGUgaW5mb3JtYXRpb24gdGhhdCBpcyBoZWxkIGluIGl0cyBWTUNTLgo+Cj4gVGhlIHNhbmUgd2F5 IHRvIGRvIHRoaXMgaXMgdG8gc25hcHNob3QgKmFsbCogaW5mb3JtYXRpb24gb24gdGhlIGludGVy Y2VwdGVkIHZDUFUsCj4gYW5kIHRoZW4gaGFuZCB0aGF0IG9mZiBhcyBhIHBheWxvYWQgdG8gdGhl IHRhcmdldCB2Q1BVLiAgVGhhdCBpcywgYXNzdW1pbmcgdGhlCj4gY3Jvc3MtdkNQVSBzdHVmZiBp cyBhY3R1YWxseSBuZWNlc3NhcnkuICBBdCBhIGdsYW5jZSwgSSBkb24ndCBzZWUgYW55dGhpbmcg dGhhdAo+IGV4cGxhaW5zICp3aHkqLgoKCll1cCwgSSBiZWxpZXZlIHlvdSByZXBlYXRlZCB0aGUg Y29tbWVudCBJIGhhZCBvbiB0aGUgZnVuY3Rpb24gLSBhbmQgCk5pY29sYXMgYWxyZWFkeSBhZ3Jl ZWQgOikuIFRoaXMgc2hvdWxkIGdvIHRocm91Z2ggdXNlciBzcGFjZSB3aGljaCAKYXV0b21hdGlj YWxseSBtZWFucyB5b3UgbmVlZCB0byBidWJibGUgdXAgYWxsIG5lY2Vzc2FyeSB0cmFwIGRhdGEg dG8gCnVzZXIgc3BhY2Ugb24gdGhlIGZhdWx0aW5nIHZDUFUgYW5kIHRoZW4gaW5qZWN0IHRoZSBm dWxsIHNldCBvZiBkYXRhIAppbnRvIHRoZSByZWNlaXZpbmcgb25lLgoKTXkgcG9pbnQgd2l0aCB0 aGUgY29tbWVudCBvbiB0aGlzIHBhdGNoIHdhcyAiRG9uJ3QgYnJlYWsgQU1EIChvciBhbmNpZW50 IApWTVggd2l0aG91dCBpbnN0cnVjdGlvbiBsZW5ndGggZGVjb2RpbmcgW0RvZXMgdGhhdCBleGlz dD8gSSBrbm93IFNWTSBoYXMgCm9sZCBDUFVzIHRoYXQgZG9uJ3QgZG8gaXRdKSBwbGVhc2UiLgoK CkFsZXgKCgoKCkFtYXpvbiBEZXZlbG9wbWVudCBDZW50ZXIgR2VybWFueSBHbWJICktyYXVzZW5z dHIuIDM4CjEwMTE3IEJlcmxpbgpHZXNjaGFlZnRzZnVlaHJ1bmc6IENocmlzdGlhbiBTY2hsYWVn ZXIsIEpvbmF0aGFuIFdlaXNzCkVpbmdldHJhZ2VuIGFtIEFtdHNnZXJpY2h0IENoYXJsb3R0ZW5i dXJnIHVudGVyIEhSQiAxNDkxNzMgQgpTaXR6OiBCZXJsaW4KVXN0LUlEOiBERSAyODkgMjM3IDg3 OQoKCg==