Re: [Qemu-devel] [PATCH 0/3] Object-based physical memory management

[Anthony Liguori <aliguori@us.ibm.com>]

Avi Kivity wrote:
> Currently, qemu manages physical memory at a page granularity (and with
> subpage, at a byte granularity).  This is expensive in memory and runtime
> (requiring 8 bytes per page, and likely a cache miss on access), and is
> difficult to manage: devices must remember their ranges so they can free
> them, and the memory system has no insight into how memory is laid out.
>
> This patchset introduces object-based memory management.  The first patch
> adds objects and functions for memory regions; the second patch wraps this
> for PCI; and the third converts RTL8139 as an example.
>   

I like the basic notion here.  Instead of introducing the API and 
converting one user, I'd rather do a flag day and convert everything.

Once we agree on the API of course.

Regards,

Anthony Liguori