[Xen-users] Memory mapping query on Xen

["Girish Shirasat" <girish.shirasat@xxxxxxxxxxxxxx>]

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. I then used the mfn_to_virt func, which gave me

the virtual address of the reserved high memory. Can you please help me understand how do we have a VA already assigned

to the reserved high memory region and the reason for ioremap failure.

 

Girish

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