Messages in this thread | | | Date | Sun, 23 Oct 2011 12:15:02 +0200 | From | "H. Peter Anvin" <> | Subject | Re: copy_*_user |
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On 10/23/2011 11:23 AM, Xin Tong wrote: > I found that __copy_from_user_ll(void *to, const void __user *from, > unsigned long n) eventually calls some asm which use mov and rep on > the passed-in to & from pointers. This is in kernel mode and to & from > are virtual addresses ? are not the kernel accessing physical RAM > directly ( without pagetable ) ?
No. What gave you that idea?
-hpa
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