Displaying 2 results from an estimated 2 matches for "direct_kernel_remap_pfn_range".
2006 Sep 15
2
Question: how to unmap memory mapped with direct_kernel_remap_pfn_range() ?
Hi,
Xenoprof buffers are mapped into the kernel using
direct_kernel_remap_pfn_range().
I need to unmap the buffer when it is not needed anymore.
However, I could not find any function that unmaps pages previously
mapped with direct_kernel_remap_pfn_range().
Any suggestion on how to do this?
Thanks
Renato
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2008 Sep 26
6
Mapping hvm guest pages in Dom0
hello,
I would like to map (Read/Write) pages owned by a HVM guest from my Dom0
Linux kernel module. I have access to the "machine frame numbers" of these
pages.
1. What is the right interface to do this? kmap needs ''struct page'' ptrs
which I doubt exist for pages owned by a HVM guest. Is there a hypercall to
do this then?
2. Do I need to modify the HVM behavior in