| commit | f12d3d04e8f6223276abb068c5d72852174b8c31 | |
| author | Matthieu CASTET <castet.matthieu@free.fr> | |
| Thu, 20 Jan 2011 20:11:45 +0000 (20 21:11 +0100) | ||
| committer | H. Peter Anvin <hpa@linux.intel.com> | |
| Thu, 3 Feb 2011 00:02:36 +0000 (2 16:02 -0800) | ||
| tree | 3fa4d535cff0faad53d4b08aa252a9d522cf6ef3 | treesnapshot (tar.gz zip) |
| parent | afe8a887550f7cc24eb16449670b93f6b43c32d8 | commitdiff |
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>
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>
| arch/x86/mm/pageattr.c | diffblobblamehistory |