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

To: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Subject: [Xen-devel] Re: [PATCH 0/5] Enable QEMU to handle more than 2GB with Xen.
From: Alexander Graf <agraf@xxxxxxx>
Date: Mon, 18 Jul 2011 14:32:42 +0200
Cc: Anthony PERARD <anthony.perard@xxxxxxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, QEMU-devel <qemu-devel@xxxxxxxxxx>
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On 15.07.2011, at 19:05, Stefano Stabellini wrote:

> 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.

I included patches 1 and 2 in xen-next. 3 and 4 are in discussion and 5 should 
only be applied when the others are in :)


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