All, In the process of experimenting with Xen, and particularly NetBSD on Xen, I noticed that the Xen-patched NetBSD kernel, when invoking ''halt'' or ''reboot'' within NetBSD, it didn''t exactly work like these do within Linux - the NetBSD domain would continue to spin (apparently invoking ''hlt'' over and over?), but the domain would not terminate by itself, after running ''halt'', and ''reboot'' would try to reboot, but wouldn''t succeed - it would claim it was trying to reboot, and stop. I went in and added calls to HYPERVISOR_shutdown() and HYPERVISOR_reboot() in what appeared to be appropriate places, and now ''halt'' and ''reboot'' do work as expected. However, I''d also like to be able to use the ''xm shutdown'' command from domain 0. Is there any interest in a patch to the netbsd-2.0-xen-sparse tree, that includes these changes? I''ll have to research how one would execute a userspace command from within the kernel, as Linux does, to handle that operation. -- Derrik Pates demon@devrandom.net ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
> I went in and added calls to HYPERVISOR_shutdown() and > HYPERVISOR_reboot() in what appeared to be appropriate > places, and now > ''halt'' and ''reboot'' do work as expected. However, I''d also like to be > able to use the ''xm shutdown'' command from domain 0. Is there any > interest in a patch to the netbsd-2.0-xen-sparse tree, that includes > these changes? I''ll have to research how one would execute a > userspace > command from within the kernel, as Linux does, to handle that > operation.Sounds like useful functionality to me! Ian ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_ide95&alloc_id396&op=click _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
On Thu, 17 Feb 2005 12:19:12 -0500, Derrik Pates <demon@devrandom.net> wrote:> In the process of experimenting with Xen, and particularly NetBSD on > Xen, I noticed that the Xen-patched NetBSD kernel, when invoking ''halt'' > or ''reboot'' within NetBSD, it didn''t exactly work like these do within > Linux - the NetBSD domain would continue to spin (apparently invoking > ''hlt'' over and over?), but the domain would not terminate by itself, > after running ''halt'', and ''reboot'' would try to reboot, but wouldn''t > succeed - it would claim it was trying to reboot, and stop.I thought this was working because I remember that I fixed it at some point. reboot and shutdown should call the corresponding functions and halt will not shutdown or reboot the machine but leave it in a tight loop doing nothing. I guess it would make sense to use HYPERVISOR_block instead of the loop so that the domain won''t take a lot of cpu, but other than that I don''t see what''s wrong with the current behaviour...> I went in and added calls to HYPERVISOR_shutdown() and > HYPERVISOR_reboot() in what appeared to be appropriate places, and now > ''halt'' and ''reboot'' do work as expected. However, I''d also like to be > able to use the ''xm shutdown'' command from domain 0. Is there any > interest in a patch to the netbsd-2.0-xen-sparse tree, that includes > these changes? I''ll have to research how one would execute a userspace > command from within the kernel, as Linux does, to handle that operation.Sure, if you can figure out how to do this cleanly, that would be a good thing to have. Thanks! christian ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel