[okl4-developer] Request virt to phys mapping in Iguana application

Nelson Tam nelson at ok-labs.com
Tue Jan 29 17:47:22 EST 2008


Hi Kashin,

I'm taking a look at this problem and will get back to you shortly.

Nelson.

On 28/01/2008, at 5:18 PM, kashin Lin wrote:

> i have tried "memsection_virt_to_phys" as following:
>
> uintptr_t  virt, mem_sect;
> uintptr_t  scm_phys;
> size_t      size;
>
> mem_sect = memsection_create_user(0x1000, &virt);
> result = hardware_back_memsection(mem_sect,0x01c40000, L4_IOMemory);
>
> scm_phys = memsection_virt_to_phys(virt, &size);
>
>
> but i always got "scm:0xfffffffe, size:0x0"  not "scm:0x01c40000,  
> size:0x1000".
> is the way i used wrong or there are something i should take care?

--
(nt)

Nelson Tam
nelson at ok-labs.com



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