From owner-svn-src-head@freebsd.org Thu Sep 8 19:17:52 2016 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id CAF1FBD2EFE for ; Thu, 8 Sep 2016 19:17:52 +0000 (UTC) (envelope-from ed@nuxi.nl) Received: from mail-yb0-x234.google.com (mail-yb0-x234.google.com [IPv6:2607:f8b0:4002:c09::234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8A778A81 for ; Thu, 8 Sep 2016 19:17:52 +0000 (UTC) (envelope-from ed@nuxi.nl) Received: by mail-yb0-x234.google.com with SMTP id g5so20630482yba.2 for ; Thu, 08 Sep 2016 12:17:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nuxi-nl.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=bxUS5zIgq0DVHTvPkjkMtHh9LE5ZysyvhiGRF8gpFU0=; b=iBE/ZG+RkSXHTscoPd+URLOI7bbVx7yuW+Mg7gMSrtICbADVkvZEZWcwCmNA84+/Yr ve2U2KjZarku9IEJCA2BTWzs5VUTOJnMnpCAxOB7UzbgX2Y2qUlnu1NY71ByBczwr73Y bOZsnXYynSOwUN6hjYX+h4R8fufctSbY4tZJAlVbCkzyzGjJBZaTIx+mNki5t7tdF+7k zdj3x51RNaH9Saj3SaCDMvIQhIkDRf8DziZF1eGemPfbITl528m5HGkzRUdk4hKeEUYO MrI9RIBhDaa/jZbiwQPqThxRDieBLrUk7P8RoIg/ie9smwAAS9v89AyJzMIX1aSh86OU PReQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=bxUS5zIgq0DVHTvPkjkMtHh9LE5ZysyvhiGRF8gpFU0=; b=c54aKsTVz+Eaj2MmDYjtlYeG4vDLiKUXtnSYrip/oXRaoEdMxG4fzGq3uq1ekJJKt3 BxUVA06JMj8NgLi6qxuQIkk1FaPJWBjzNA5D8qpsXcyevoVSjbOR59LE4dwVkFXtUk5g JwdDA+6Xv+/rtOPInO3DN7Jo1A5SWRMjTwYADT/Lom3w6EBJp9ky8xMUn6n5ObpDQyNZ Jzl4MdDfvo8r35IMatiKg76iH7Zj5ORZ9BFDWP8mYvYVnS0tGhwfDPD4n5BZzxtpxOh2 FYYDyVZLkTEn5SoicHhxyoN6ozkgGDjahFfdE3F95ersu3ZgTnh0DryAIu2lBF450wBP /ySA== X-Gm-Message-State: AE9vXwO22lsFxqKauapaU+DMJvUEDaiEmXYgjc4KbvkcxSUTS1reQfUMF/EdfPlWY4LecoSPpNzSoWP1OhDHUQ== X-Received: by 10.37.6.198 with SMTP id 189mr1484959ybg.119.1473362271617; Thu, 08 Sep 2016 12:17:51 -0700 (PDT) MIME-Version: 1.0 Received: by 10.13.201.71 with HTTP; Thu, 8 Sep 2016 12:17:51 -0700 (PDT) In-Reply-To: <20160908160516.4bfe3045@zapp> References: <201609081253.u88Cr18b036987@repo.freebsd.org> <20160908160516.4bfe3045@zapp> From: Ed Schouten Date: Thu, 8 Sep 2016 21:17:51 +0200 Message-ID: Subject: Re: svn commit: r305607 - head/sys/arm64/arm64 To: Andrew Turner Cc: src-committers , svn-src-all@freebsd.org, svn-src-head@freebsd.org Content-Type: text/plain; charset=UTF-8 X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Sep 2016 19:17:52 -0000 2016-09-08 17:05 GMT+02:00 Andrew Turner : > On Thu, 8 Sep 2016 16:48:45 +0200 > Ed Schouten wrote: >> It depends on which system register is being used, right? System >> registers like TPIDR_EL0 are accessed by userspace all the time. > > Correct, the trap is only hit when userspace doesn't have permission to > access the register. Got it. Thanks for clarifying! -- Ed Schouten Nuxi, 's-Hertogenbosch, the Netherlands KvK-nr.: 62051717