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Re: [Xen-devel] hypercall_xlat_continuation()





Ian Campbell wrote:
On Thu, 2009-05-28 at 23:01 -0400, Mukesh Rathor wrote:
yeah, looks like privcmd_ioctl_32() only fixes the wrapper struct. The
PFN array still is 32bit pfn's, and privcmd_ioctl() expects 64bits. So,
in a dilemma now, not sure if I should fix it up in privcmd_ioctl_32()
or change privcmd_ioctl() which will take some time to reverse engineer.
Not sure how many things I'll discover, if it's too many, it may
not be worth it in the end.

FWIW here are my very skanky patches from ages ago (patch names are the
originals if that gives a clue to my opinion of them even then ;-)).

I don't even recall if they worked properly (or at all), I think I
remember starting guests so long as they didn't use blktap (which has
issues with the user<->kernel ring protocol in this scenario).

There's an outside change there might be something in them which isn't
complete rubbish.

Ian.


Hi Ian,

Looks like you also put in quite a bit of effort into it. I'm
realizing that it is more work than it appeared in the beginning,
and probably not worth the gains in the end. So I should also give up.
learnt few new things along the way tho :).

Thanks,
Mukesh

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