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[Xen-devel] Memory mapping query on Xen
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] Memory mapping query on Xen |
| From: | "Girish Shirasat" <girish.shirasat@xxxxxxxxxxxxxx> |
| Date: | Fri, 4 May 2007 07:30:57 +0100 |
| Delivery-date: | Wed, 09 May 2007 10:17:33 -0700 |
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Hello Folks,
I am very new to Xen hence forgive me if this is a naive qn. On my board I have 1 GB of Ram. When Xen
launches Domain0 ie Linux , I reserved some high mem region for my driver usage. When I tried to access the
reseved high memory region for my driver using ioremap it failed. Can anybody please help me understand what
could me the problem out here. When i used the mfn_to_virt for the first address of the reserved memory , i did get
a virtual address and was able to write for 2 pages only. Also the high mem start which was histrocially set to 896MB
has been moved to 728MB. I would appreciate for any pointers on this.
Girish
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