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Re: [Xen-devel] access shared_info?

To: Gerd Hoffmann <kraxel@xxxxxxx>
Subject: Re: [Xen-devel] access shared_info?
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Wed, 7 Jun 2006 14:48:08 +0100
Cc: Xen devel list <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: 2006年6月07日 06:48:25 -0700
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On 7 Jun 2006, at 14:28, Gerd Hoffmann wrote:
How can I access the shared_info page for my own domain from domU
userspace? Seems dom0 ops are completely disabled for domUs, even for
domid == DOMID_SELF. I need shared_info->arch.max_pfn ...
Even if you could get address of shared_info, you can't map it into user space without some kernel hacking to make that possible (/dev/mem can only map I/O memory when running on Xen).
 -- Keir
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