Re: [Xen-devel] When does Xen build 1:1 direct mapping of all physical memory ?

[Xinxin Jin <xinxinjin89@xxxxxxxxx>]

Hi Jan, I think init_frametable() is to initialize frame table, whose virtual address starts at FRAMETABLE_VIRT_START ? How about the direct 1:1 mapping of all of machine memroy whose virtual address start at DIRECTMAP_VIRT_START?

Thanks,

On Tue, Feb 26, 2013 at 12:31 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote:

>>> On 25.02.13 at 20:51, Xinxin Jin <xinxinjin89@xxxxxxxxx> wrote:
> I assumed that Xen fills up the page table entires for 1:1 direct mapping
> of all physical memory at start time, but I cannot find the code. Could
> anyone tell me when Xen builds up pte for this mapping ?

xen/arch/x86/mm.c:init_frametable()

Jan

--
Xinxin

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