tree 3fa4d535cff0faad53d4b08aa252a9d522cf6ef3
parent afe8a887550f7cc24eb16449670b93f6b43c32d8
author Matthieu CASTET <castet.matthieu@free.fr> 1295554305 +0100
committer H. Peter Anvin <hpa@linux.intel.com> 1296691356 -0800

x86, nx: Don't force pages RW when setting NX bits

Xen want page table pages read only.

But the initial page table (from head_*.S) live in .data or .bss.

That was broken by 64edc8ed5ffae999d8d413ba006850e9e34166cb.  There is
absolutely no reason to force these pages RW after they have already
been marked RO.

Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>