[Xen-devel] hvm_copy_from_guest_virt

["Wu Bingzheng" <wubingzheng@xxxxxxx>]

Hi,

In Xen 3.3.0, hvm's shadow page fault handler: sh_page_fault():
I call 'hvm_copy_from_guest_virt' to read some guest's (Windows XP) memory.
If I read user space, it works fine.
If I read kernel space, like 0x8xxxxxxx or 0xFxxxxxxx, it retures HVMCOPY_bad_gva_to_gfn.
I am sure that the page I read is present in guest's page table.

Can I copy memory from kernel space?

Thanks,
Wu

---

网易邮箱用户购物独享现金返还

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel