On 10/12/2017 02:54 PM, Andrew Cooper wrote:
> There are currently three functions which write L4 pagetables for Xen, but
> they all behave subtly differently. sh_install_xen_entries_in_l4() in
> particular is catering for two different usecases, which makes the safety of
> the linear mappings hard to follow.
>
> By consolidating the L4 pagetable writing in a single function, the resulting
> setup of Xen's virtual layout is easier to understand.
>
> No practical changes to the resulting L4, although the logic has been
> rearranged to avoid rewriting some slots. This changes the zap_ro_mpt
> parameter to simply ro_mpt.
>
> Both {hap,sh}_install_xen_entries_in_l4() get folded into their callers. The
> hap side only a single caller, while the shadow side has two. The shadow
> split helps highlight the correctness of the linear slots.
>
> Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
Acked-by: George Dunlap <george.dun...@citrix.com>
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