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Re: [Xen-devel] xen and reboots
| To: | "James Harper" <james.harper@xxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] xen and reboots |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Fri, 30 Dec 2005 10:12:09 +0000 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 30 Dec 2005 10:10:45 +0000 |
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On 29 Dec 2005, at 23:56, James Harper wrote: Following up to my own post... it looks like in xen/arch/x86/domain.c there is a variable called 'reboot_mode', which is written to physical address 0x472 on reboot to tell the BIOS what to do. This would contain 0x1234 to do a 'warm' boot, and 0 (or anything else???) otherwise. But nowhere in the xen directory can I see this variable get initialised... Any ideas? Xen's reboot code is a dumb rip-off from Linux. Some of the parameters for choosing type of reboot are not 'wired up'. What's there now seems to work on the vast majority of systems. I don't understand how different reboot triggers in domain0 can have an effect on whether the system actually reboots or not. I believe the Xen reboot code is unaffected by guests. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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