Re: [Qemu-devel] [RFC][PATCH 10/15] memory: Rework sub-page handling

[Paolo Bonzini]

Il 06/05/2013 16:26, Jan Kiszka ha scritto:
> Simplify the sub-page handling by implementing it directly in the
> dispatcher instead of using a redirection memory region. We extend the
> phys_sections entries to optionally hold a pointer to the sub-section
> table that used to reside in the subpage_t structure. IOW, we add one
> optional dispatch level below the existing radix tree.
> 
> address_space_lookup_region is extended to take this additional level
> into account. This direct dispatching to that target memory region will
> also be helpful when we want to add per-region locking control.
> 
> Signed-off-by: Jan Kiszka <address@hidden>

I wonder if subpage_ram is needed at all now.  Should be a separate
patch anyway, so

Reviewed-by: Paolo Bonzini <address@hidden>