search for: direct_kernel_remap_pfn_range

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 _______________________________________________ Xen-devel mailing list Xe...
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