From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,ee887b7593f7961b X-Google-Attributes: gid103376,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news4.google.com!news.germany.com!newsfeed-0.progon.net!progon.net!news-zh.switch.ch!switch.ch!news.ip-plus.net!newsfeed.ip-plus.net!news.post.ch!not-for-mail From: Martin Krischik Newsgroups: comp.lang.ada Subject: Re: Ada OS based on Minix3 Date: Thu, 13 Nov 2008 08:10:38 +0100 Organization: Swisscom IP+ (post doesn't reflect views of Swisscom) Message-ID: <491bd2ee$1@news.post.ch> References: <4919431e$1@news.post.ch> <491967de$0$32371$4d3efbfe@news.sover.net> <491973b6$0$32664$9b4e6d93@newsspool2.arcor-online.net> <5420dcaf-b3b6-4fff-9134-de1855280f9b@b31g2000prb.googlegroups.com> NNTP-Posting-Host: 194.41.146.1 Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: atlas.ip-plus.net 1226560241 4913 194.41.146.1 (13 Nov 2008 07:10:41 GMT) X-Complaints-To: abuse@ip-plus.net NNTP-Posting-Date: Thu, 13 Nov 2008 07:10:41 +0000 (UTC) User-Agent: Thunderbird 2.0.0.17 (Windows/20080914) In-Reply-To: <5420dcaf-b3b6-4fff-9134-de1855280f9b@b31g2000prb.googlegroups.com> X-Original-NNTP-Posting-Host: w03duo.pnet.ch X-Original-Trace: 13 Nov 2008 08:10:38 +0100, w03duo.pnet.ch Xref: g2news1.google.com comp.lang.ada:2665 Date: 2008-11-13T08:10:38+01:00 List-Id: Hi Ludovic, Ludovic Brenta schrieb: > Georg Bauhaus wrote: >> Peter C. Chapin schrieb: >>> Martin Krischik wrote: >>>> Now, if I wanted to create an OS I would not target real hardware at >>>> all. At least not in the beginning. I would probably implement the OS >>>> inside a VMware virtual machine. >>> What about targeting a hypervisor like Xen? If I understand correctly >>> (and I may not) that would separate the OS somewhat from the real >>> hardware and may help its portability in the long run. >> How could separation from the hardware do better than a >> Microkernel such as Minix 3? >> >> Full virtualization also deprives you of access to >> a larger set of hardware. Which, I'd speculate, is not >> too helpful when targetting mostly embedded system? > > Georg, how do you know the OP wants to target embedded systems? > > I personally think targetting Xen is a nice long-term goal because it > is unrealistic to think people will run an Ada operating system on a > dedicated machine. However, requiring that developers use and develop > on Xen might hinder adoption. It is better to do the initial > development targetting qemu or equivalent because, as Georg mentioned, > it lowers the barrier for contributors. Actually that was me who suggested it. qemu sound good, supports the 3 important OS and ready made disk images for "quick install and try out". Regards Martin -- mailto://krischik@users.sourceforge.net Ada programming at: http://ada.krischik.com