From owner-svn-src-all@freebsd.org Tue Sep 3 14:07:52 2019 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 8E9C9DD28D; Tue, 3 Sep 2019 14:06:59 +0000 (UTC) (envelope-from yuripv@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2610:1c1:1:6074::16:84]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "freefall.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46N8026ptbz4Q6S; Tue, 3 Sep 2019 14:06:58 +0000 (UTC) (envelope-from yuripv@freebsd.org) Received: by freefall.freebsd.org (Postfix, from userid 1452) id 326BC1AE99; Tue, 3 Sep 2019 14:06:24 +0000 (UTC) X-Original-To: yuripv@localmail.freebsd.org Delivered-To: yuripv@localmail.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [96.47.72.80]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client CN "mx1.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by freefall.freebsd.org (Postfix) with ESMTPS id 1C7CB6F8A; Tue, 16 Apr 2019 23:48:33 +0000 (UTC) (envelope-from owner-src-committers@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2610:1c1:1:6074::16:84]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "freefall.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 3F36B85F20; Tue, 16 Apr 2019 23:48:32 +0000 (UTC) (envelope-from owner-src-committers@freebsd.org) Received: by freefall.freebsd.org (Postfix, from userid 538) id 136296F23; Tue, 16 Apr 2019 23:48:32 +0000 (UTC) Delivered-To: src-committers@localmail.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [96.47.72.80]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client CN "mx1.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by freefall.freebsd.org (Postfix) with ESMTPS id D18B06F1D; Tue, 16 Apr 2019 23:48:28 +0000 (UTC) (envelope-from cse.cem@gmail.com) Received: from mail-io1-f52.google.com (mail-io1-f52.google.com [209.85.166.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 7775F85F15; Tue, 16 Apr 2019 23:48:28 +0000 (UTC) (envelope-from cse.cem@gmail.com) Received: by mail-io1-f52.google.com with SMTP id b6so19153012iog.0; Tue, 16 Apr 2019 16:48:28 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:reply-to :from:date:message-id:subject:to:cc; bh=odsmj96NJ8JIboVrXKLUZGaYvkbPGNeAHxbHowzjxSo=; b=IIb1kBkiqMiHD73R9TruFp6SKYGLMPKipmukfk4kFfdiTQ/fsDEFO5XtqDFVjL45Cr zIPWCGUGwBtYChbxE3Ni2HqVUvIu9IkMhy1fyUdcrcbd8Vcx0qm39WhqYeDnRA7eeK/v K8OxXGlozmfXOBLCtbpATB+3UJpsxTWXgeG8Q72diHvyib1VAoNyi6VeLLGLbp6hPpdt hQ3xoXzk9BTaFOcodn9KRI7zLqpPdWxU3QLkUNdS0qn8MUxrAcELhNiJqzSo2rqz1rpf ryItnMRQDkXzK4C1p+eDXYj+XDNcZCkf+34ny/3rCT1ro1kzVhWlpXrD4F97SV4VEX/Z rlWQ== X-Gm-Message-State: APjAAAX9d9yzIRzaB1t7sZn5Up5X/JZzAqSZUy1XdGf3FKlmh5ExLiBS D0dw8puJb28Sc4JHDCRzTPo7lYC3 X-Google-Smtp-Source: APXvYqyaJUvTbMwg6wOfQgPC9ZYter30Zg52gJBMCqoLKc7V6fjsM1TkD6Z7FaSCNSUA4H6fWy4pwQ== X-Received: by 2002:a5d:97da:: with SMTP id k26mr54184971ios.46.1555458507391; Tue, 16 Apr 2019 16:48:27 -0700 (PDT) Received: from mail-it1-f170.google.com (mail-it1-f170.google.com. [209.85.166.170]) by smtp.gmail.com with ESMTPSA id c13sm19915342iod.88.2019.04.16.16.48.26 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 16 Apr 2019 16:48:26 -0700 (PDT) Received: by mail-it1-f170.google.com with SMTP id y134so1641479itc.5; Tue, 16 Apr 2019 16:48:26 -0700 (PDT) X-Received: by 2002:a05:660c:111:: with SMTP id w17mr32299105itj.62.1555458506488; Tue, 16 Apr 2019 16:48:26 -0700 (PDT) MIME-Version: 1.0 References: <201904162251.x3GMp2aF097103@gndrsh.dnsmgr.net> <4d6b8a14-b053-9ed1-14b2-bbc359ac9413@FreeBSD.org> In-Reply-To: <4d6b8a14-b053-9ed1-14b2-bbc359ac9413@FreeBSD.org> Reply-To: cem@freebsd.org From: Conrad Meyer X-Gmail-Original-Message-ID: Message-ID: Subject: Re: svn commit: r346250 - in head: share/man/man4 share/man/man9 sys/dev/random sys/kern sys/libkern sys/sys To: John Baldwin Cc: src-committers , svn-src-all , svn-src-head Content-Type: text/plain; charset="UTF-8" Precedence: bulk X-Loop: FreeBSD.org Sender: owner-src-committers@freebsd.org X-Rspamd-Queue-Id: 3F36B85F20 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-6.98 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.98)[-0.977,0]; REPLY(-4.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0] Status: O X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Date: Tue, 03 Sep 2019 14:07:52 -0000 X-Original-Date: Tue, 16 Apr 2019 16:48:15 -0700 X-List-Received-Date: Tue, 03 Sep 2019 14:07:52 -0000 On Tue, Apr 16, 2019 at 4:31 PM John Baldwin wrote: > bhyveload is effectively the loader in this case. It runs the normal loader > scripts and logic and so would load the guests's /boot/entropy and pass it > to the guest kernel as metadata just like the regular loader. Right, except it doesn't seem to do things like nuke /boot/nextboot.conf :-(. > In addition, bhyve also supports virtio-rng which is another way to provide > entropy to guest OS's. That's why in my reply I focused on qemu for mips > (or riscv) as for x86 hypervisors there are existing, somewhat-standarized > solutions for the hypervisor to provide entropy to the guest. Perhaps cryptographically random stack-protector cookies are simply inappropriate for MIPS or RISCV. Do we have any other examples of kernel random consumers blocking after that immediate hiccup is overcome? Best, Conrad