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[Xen-devel] Balloon down memory failed in x86 PAE mode when memory size>

To: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Balloon down memory failed in x86 PAE mode when memory size>4G
From: ANNIE LI <annie.li@xxxxxxxxxx>
Date: Mon, 21 Sep 2009 14:42:55 +0800
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Hi

I implemented balloon in windows pv driver, it works normally on x86 and x64 OS. However, i hit problem to balloon down memory on x86 PAE mode VM when it's memory
size is larger than 4G.

Furthermore, i tested linux PVHVM too. Balloon driver also failed to take effect
at the same situation.

So, is there anything missed in windows or linux PV driver when ballooning down memory on x86 PAE VM(memory>4G)? or is there a limitation in Xen for PAE mode?

Thanks
Annie.

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