On Mon, Jun 25, 2012 at 1:00 PM, Mulyadi Santosa <mulyadi.santosa@xxxxxxxxx> wrote:
Hi.... :)
vmalloc reserved address range, you meant?
On Sun, Jun 24, 2012 at 1:32 AM, Subramaniam Appadodharana
<c.a.subramaniam@xxxxxxxxx> wrote:
> Hi All,
> I am trying to understand how vmalloc memory is reserved in kernel. In 3.4+
> latest kernel, the default vmalloc size is 240MB.
Yup....
>Is this a carveout from
> the 1GiB memory that kernel has?
uhm....not sure....vmalloc-ed is not physically contigous. Also, it is
> In other words can I do a __pa(VMALLOC_START) or __pa(VMALLOC_END)
> or __pa(highmemory) irrespective of the vmalloc size that I request, say
> doing vmalloc=1G?
set up far after identity mapping setup. So, the value you get from
__pa() IMHO would be likely invalid or has no meaning.
I thought that, as log as we know that the address is within the 1GiB, we could get the
pa of the virtual address using __pa(). Is this not the case?
--
regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
_______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
