[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] tools: hvmloader: attempt to SHUTDOWN_crash on BUG
On 20/04/2011 19:35, "Ian Jackson" <Ian.Jackson@xxxxxxxxxxxxx> wrote: > Ian Campbell writes ("Re: [Xen-devel] [PATCH] tools: hvmloader: attempt to > SHUTDOWN_crash on BUG"): >> The toolstack can't tell the difference between hvmloader and the >> subsequent bootloader then OS doing stuff and they may not be PV'd up. > > Indeed. But hvmloader can put the reason code back just before it > launches the guest bootloader (or perhaps just before it enters the > BIOS). Currently the reason code cannot be changed after it has been latched by the hypervisor. Secondly, even if it could be changed, we wouldn't want to change it to a new value after hvmloader has run; we'd want to reset it to no-code. That would be cleanest with a new sched_op. However it is arguable whether this is worthwhile, since I've never heard of hvmloader crashing except on an explicit bug/assert statement (and even those are rare, and during development work). So it's kind of a non problem. Also I already applied Ian's patch. :-) (I still maintain tools/firmware/, at least until seabios goes in). -- Keir > Ian. > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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