Re: [Qemu-devel] [PATCH 2/2] find_ram_offset: Align ram_addr_t allocation on long boundaries

[Juan Quintela]

"Dr. David Alan Gilbert (git)" <address@hidden> wrote:
> From: "Dr. David Alan Gilbert" <address@hidden>
>
> The dirty bitmaps are built from 'long'sand there is fast-path code
> for synchronising the case where the RAMBlock is aligned to the start
> of a long boundary.  Align the allocation to this boundary
> to cause the fast path to be used.
>
> Offsets before change:
> address@hidden:find_ram_offset size: 0x1e0000 @ 0x8000000
> address@hidden:find_ram_offset size: 0x20000 @ 0x81e0000
> address@hidden:find_ram_offset size: 0x20000 @ 0x8200000
> address@hidden:find_ram_offset size: 0x1000000 @ 0x8220000
> address@hidden:find_ram_offset size: 0x10000 @ 0x9220000
> address@hidden:find_ram_offset size: 0x40000 @ 0x9230000
> address@hidden:find_ram_offset size: 0x200000 @ 0x9270000
> address@hidden:find_ram_offset size: 0x1000 @ 0x9470000
> address@hidden:find_ram_offset size: 0x1000 @ 0x9471000
>
> after change:
> address@hidden:find_ram_offset size: 0x1e0000 @ 0x8000000
> address@hidden:find_ram_offset size: 0x20000 @ 0x8200000
> address@hidden:find_ram_offset size: 0x20000 @ 0x8240000
> address@hidden:find_ram_offset size: 0x1000000 @ 0x8280000
> address@hidden:find_ram_offset size: 0x10000 @ 0x9280000
> address@hidden:find_ram_offset size: 0x40000 @ 0x92c0000
> address@hidden:find_ram_offset size: 0x200000 @ 0x9300000
> address@hidden:find_ram_offset size: 0x1000 @ 0x9500000
> address@hidden:find_ram_offset size: 0x1000 @ 0x9540000
>
> Suggested-by: Paolo Bonzini <address@hidden>
> Signed-off-by: Dr. David Alan Gilbert <address@hidden>

Reviewed-by: Juan Quintela <address@hidden>