Re: [Xen-devel] [PATCH] Assorted VMX patches

[Leendert van Doorn <leendert@xxxxxxxxxxxxxx>]

# Have you tried the modified xc_ptrace on a paravirtualized VM? I don't
# think that the machine address read out of the page tables would index
# correctly into the array of pages which, presumably, are in physical
# order. I think the changes in map_guest_va should probably be
# conditional on the guest being vmx.

You are right, I didn't try the gdbserver patches on a paravirtualized VM,
but I would expect xc_get_pfn_list to return an identity map in that case
so that the dereferences still work.

If it doesn't, then you need to test the flags for ECF_VMX_GUEST and do
the dereferences conditionally.

        Leendert


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