Re: [Qemu-devel] [PATCH 0/5] Enable QEMU to handle more than 2GB with Xen.

[Stefano Stabellini]

On Fri, 15 Jul 2011, Anthony PERARD wrote:
> Hi all,
> 
> Xen is not limited by the QEMU's virtual address space for the allocation of
> the guest RAM. So even with a QEMU 32bits, a Xen guest can have more than 4 GB
> of RAM.
> 
> With this serie, we will be able to run a guest with more than 4GB. The main
> point is to change ram_addr_t from ulong to uin64 when QEMU is configure with
> Xen. The second point is better register the memory in QEMU.
> 
> Regards,
> 
> 
> Anthony PERARD (5):
>   xen: Fix xen_enabled().
>   exec.c: Use ram_addr_t in cpu_physical_memory_rw(...).
>   cpu-common: Have a ram_addr_t of uint64 with Xen.
>   xen: Fix the memory registration to reflect of what is done by Xen.
>   vl.c: Check the asked ram_size later.
> 
>  cpu-common.h |    8 ++++++++
>  exec.c       |   13 +++++++------
>  hw/xen.h     |    2 +-
>  vl.c         |   14 ++++++++------
>  xen-all.c    |   23 +++++++++++++++--------
>  5 files changed, 39 insertions(+), 21 deletions(-)
 
All the patches look good to me, just a comment on the 4th patch.