Return-path: Envelope-to: publicinbox@libre-riscv.org Delivery-date: Mon, 18 May 2020 14:26:53 +0100 Received: from localhost ([::1] helo=libre-riscv.org) by libre-soc.org with esmtp (Exim 4.89) (envelope-from ) id 1jafnA-0005Wg-BJ; Mon, 18 May 2020 14:26:52 +0100 Received: from lkcl.net ([217.147.94.29]) by libre-soc.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1jafn9-0005WZ-B0 for libre-riscv-dev@lists.libre-riscv.org; Mon, 18 May 2020 14:26:51 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lkcl.net; s=201607131; h=Content-Type:To:Subject:Message-ID:Date:From:References:In-Reply-To:MIME-Version; bh=lvgRCmyEk7DGZyW/utnZpXZcNpv7LOFk0Mads477qfo=; b=IH9PzDAzK6lAptDWOVa/BYHm2PdVuYL9Co91LWfat257dCfODP5bD56utjjEcA8YHz1/eRTfnTtm2BMMVhA2A4rpSW+Wcz9MSvfYFNVbiGlJ59yPFJiE5qijtbmALP/j5StWVXaGq94JFZHtKksWgG+7kQ0XOnDgGXE4YveB5v4=; Received: from mail-lf1-f52.google.com ([209.85.167.52]) by lkcl.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from ) id 1jafn9-0004m2-0r for libre-riscv-dev@lists.libre-riscv.org; Mon, 18 May 2020 13:26:51 +0000 Received: by mail-lf1-f52.google.com with SMTP id 202so8021496lfe.5 for ; Mon, 18 May 2020 06:26:35 -0700 (PDT) X-Gm-Message-State: AOAM533PGFvqJm374CEa6LH/6qzGRFoFjUKuEL1dF64QwRN0MjdgGLkX RTNUO9h8L5s76m1J3+RzCuAOMrSD/qdPpC69Y40= X-Google-Smtp-Source: ABdhPJwgHU8P5FJqOCtAl9T/Bf+/DBBdT4mG2K5ivSMh56RWJOY7WbSIerFHknZ/boPeN8LjrSWFzNu7rWSg6n3m5KU= X-Received: by 2002:a19:c1c3:: with SMTP id r186mr7352643lff.49.1589808389986; Mon, 18 May 2020 06:26:29 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a05:6504:31aa:0:0:0:0 with HTTP; Mon, 18 May 2020 06:26:29 -0700 (PDT) In-Reply-To: <33B8ACFA-9A9F-482F-985B-D5E5C44B56B9@gatech.edu> References: <33B8ACFA-9A9F-482F-985B-D5E5C44B56B9@gatech.edu> From: Luke Kenneth Casson Leighton Date: Mon, 18 May 2020 14:26:29 +0100 X-Gmail-Original-Message-ID: Message-ID: To: Libre-RISCV General Development X-Content-Filtered-By: Mailman/MimeDel 2.1.23 Subject: Re: [libre-riscv-dev] Avoiding Spectre or Meltdown X-BeenThere: libre-riscv-dev@lists.libre-riscv.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Libre-RISCV General Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Libre-RISCV General Development Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: libre-riscv-dev-bounces@lists.libre-riscv.org Sender: "libre-riscv-dev" T24gTW9uZGF5LCBNYXkgMTgsIDIwMjAsIFllaG93c2h1YSA8eWltbWFudWVsM0BnYXRlY2guZWR1 PiB3cm90ZToKCj4gSSBrbm93IEphY29iIG1lbnRpb25lZCBzb21lIHNjaGVtZSBlYXJsaWVyLgo+ Cj4gSWYgeW91IHNoYWRvdyBjb21taXRzIHRvIG1lbW9yeShyZWFsbHkgY2FjaGUpIGR1cmluZyBz cGVjdWxhdGlvbiBieSBoYXZpbmcKPiBjb21taXRzIHBsYWNlZCBpbiBhIGJ1ZmZlciwgd2hpY2gg eW91IGNhbiBpZ25vcmUgb25jZSBicmFuY2ggaXMgcmVzb2x2ZWQsCj4gd291bGRu4oCZdCB0aGF0 IGF2b2lkIHNvbWUgcHJvYmxlbXMgd2l0aCBTcGVjdHJlIGFuZCBNZWx0ZG93bj8KCgpobW0gaG1t IGkgaG9uZXN0bHkgZG8gbm90IGtub3cuICBteSB1bmRlcnN0YW5kaW5nIG9mIHRoZXNlIE9vTyBp c3N1ZXMgaXMKbGltaXRlZC4KCiogd2UgY2FuIGNhbGN1bGF0ZSB0aGUgRWZmZWN0aXZlIEFkZHJl c3MgKGltbWVkaWF0ZSBvciBpbmRleGVkKSBhbmQgaQpkZWxpYmVyYXRlbHkgcHV0IGluIGEgImhv bGQiIHN5c3RlbSAoYWRkci5yZXF1ZXN0IGFuZCBhZGRyLmdvKSwgc28gZXZlbgpzdGFydGluZyB0 aGUgYWN0dWFsIExEU1QgY2FuIGJlIHNoYWRvd2VkIChkZWZpbmVkIGFzIGEgcHJvaGliaXRpb24g YWdhaW5zdApjb21taXR0aW5nKS4KCiogd2hlbiBhZGRyLmdvIGlzIHNlbnQsIHRoZXJlIHdpbGwg YmUgZWl0aGVyIGEgImFkZHJlc3MgaXMgb2siIG9yIGFuCmV4Y2VwdGlvbiBzaWduYWwgY29tZXMg YmFjay4KCiogYSBTVCB3aWxsIHN1YnNlcXVlbnRseSB3YWl0IGZvciBhbiBleHBsaWNpdCAic3Qu Z28iIGhvd2V2ZXIgTEQgYXQgcHJlc2VudAphc3N1bWVzIGl0IG1heSBwcm9jZWVkIGF0IGFueSB0 aW1lCgp0aGVyZWZvcmUgYXQgdGhlIG1vbWVudCwgaXQgaXMgdGhlIGFkZHJlc3MgY29tcHV0YXRp b24gd2hpY2ggY2FuIHByb2NlZWQKc3BlY3VsYXRpdmVseSB3aXRob3V0IGNhdXNpbmcgInNwZWMv bWVsdCIgaGFybS4KCmhvd2V2ZXIgYmV5b25kIHRoZSAiYWRkci5nbyIgcG9pbnQsIHRoZSBhc3N1 bXB0aW9uIGlzIHRoYXQgaWYgbm8gZXhjZXB0aW9uCmNvbWVzIGJhY2ssIGFsbCByZXNvdXJjZXMg cmVxdWlyZWQgdG8gY29tcGxldGUgdGhlIExEIG9yIFNUIGhhdmUgYmVlbgpyZXNlcnZlZCAoVExC cyBlc3RhYmxpc2hlZCwgTDEgY2FjaGUgbGluZSB2YWxpZCBhbmQgaGVsZCkgYW5kIHRoZXJlIGlz IGEKMTAwJSBndWFyYW50ZWUgdGhhdCB0aGUgb3BlcmF0aW9uIHdpbGwgc3VjY2VlZC4KCmhvdyB0 aG9zZSBBUEkgcnVsZXMgaW50ZXJhY3Qgd2l0aCBzcGVjL21lbHQgaSBkbyBub3QgcmVhbGx5IGtu b3cuCgppICpiZWxpZXZlKiBpdCBpcyB0aGF0IHlvdSBhcmUgbm90IGFsbG93ZWQgdG8gYXR0ZW1w dCAic3BlY3VsYXRpdmUKYW55dGhpbmciIHdoaWNoIGNvdWxkIGNhdXNlIGFuIGV4Y2VwdGlvbiwg aXMgdGhhdCByaWdodD8KCmlmIHRoYXQgaXMgdGhlIGNhc2Ugd2Ugd2lsbCBuZWVkIHRvIGhvbGQg YWxsIGFkZHIuZ28gZmlyaW5nIHVudGlsIGFueSBmb3JtCm9mIHNoYWRvd2luZyAoYnJhbmNoZXMg ZXRjKSBhcmUgMTAwJSBjbGVhci4KCnRoaXMgd291bGQgcmVzdWx0IGluIHBlcmZvcm1hbmNlIHRo YXQgY29tcGxldGVseSBzdWNrcywgZXNwZWNpYWxseSBpbiB0aWdodAppbm5lciBsb29wcy4KCmkg d291bGQgYWR2b2NhdGUgbWFraW5nIGl0IHBvc3NpYmxlIHRvIHNldCBhIGJpdCB0aGF0IGNoYW5n ZXMgdGhhdApiZWhhdmlvdXIgYXQgdGhlIGhhcmR3YXJlIGxldmVsIChzdXBlcnZpc29yIGJpdCku CgpsLgoKCgotLSAKLS0tCmNyb3dkLWZ1bmRlZCBlY28tY29uc2Npb3VzIGhhcmR3YXJlOiBodHRw czovL3d3dy5jcm93ZHN1cHBseS5jb20vZW9tYTY4Cl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fCmxpYnJlLXJpc2N2LWRldiBtYWlsaW5nIGxpc3QKbGlicmUt cmlzY3YtZGV2QGxpc3RzLmxpYnJlLXJpc2N2Lm9yZwpodHRwOi8vbGlzdHMubGlicmUtcmlzY3Yu b3JnL21haWxtYW4vbGlzdGluZm8vbGlicmUtcmlzY3YtZGV2Cg==