| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
Re: [Xen-devel] about: XENMEM_machphys_mfn_list
Lin.Yu wrote:
XENMEM_machphys_mfn_list command is used to acquire the mapping between
the pseudo-physical to machine. And the hypercall will fill in the
struct xen_machphys_mfn_list.
I do not understand "This table is an array of pseudo-physical frame
numbers of the start of 2MB extents, corresponding to 2MB rangs in the
pseudo-physical address space".
"This table" means the array pointed by xen_machphys_mfn_list.extent_start.
I am reading the code about this struct, still in confusion.
:-)
Who can help me?
AFAIU, here "table" is nothing more than an array of xen_pfn_ts.
Only complication is, mfns returned are `base-mfns' for 2MB memory regions.
For example, if mfn 100 is returned, it means mfns 100-612 hold the 2MB
region (612 = 100 + 512; 512 pages make 2MB)
--
bvk-chaitanya
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
|
|
| |
|
Home