Re: [Xen-devel] Physical address mapping to user space in dom0 problem

[Keir Fraser <keir@xxxxxxxxxxxxx>]

On 18/3/07 20:11, "Haw-Yuan Yang" <hawyuan@xxxxxxxxx> wrote:

> Here is what I have in the mmap handler:
>  
> if  the physical address is MMIO
>     io_remap_pfn_range(MMIO_address)
> else
>    remap_pfn_range(virt_to_phys(cpu-ptr-returned-by-pci-alloc-consistent)   

Well, perhaps you can simplify your own mmap() handler since you perhaps know that it will only be used to mmap() your pci_alloc_consistent() memory block. Hence you may only need to handle the remap_pfn_range() case. But anyway, you have the idea now.

 -- Keir




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