diff options
| author | Leendert van Doorn <leendert@watson.ibm.com> | 2005-01-10 17:11:48 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-01-10 17:11:48 -0800 |
| commit | bff12f371c164b6530c3d911454102c655909fe2 (patch) | |
| tree | 17522ad6660f68e485d9b89dfab7aba9a44a23a6 /arch | |
| parent | a664543754c04971285340031c8872ad4702b395 (diff) | |
| download | history-bff12f371c164b6530c3d911454102c655909fe2.tar.gz | |
[PATCH] arch/i386/kernel/cpu/mtrr: too many bits are masked off from CR4
The old code cuts off the higher bits in CR4 (such as X86_CR4_OSFXSR,
X86_CR4_OSXMMEXCPT).
Signed-off-by: leendert@watson.ibm.com
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/kernel/cpu/mtrr/generic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/i386/kernel/cpu/mtrr/generic.c b/arch/i386/kernel/cpu/mtrr/generic.c index 60a04638e39798..cf7fd685b34570 100644 --- a/arch/i386/kernel/cpu/mtrr/generic.c +++ b/arch/i386/kernel/cpu/mtrr/generic.c @@ -258,7 +258,7 @@ static void prepare_set(void) /* Save value of CR4 and clear Page Global Enable (bit 7) */ if ( cpu_has_pge ) { cr4 = read_cr4(); - write_cr4(cr4 & (unsigned char) ~(1 << 7)); + write_cr4(cr4 & ~X86_CR4_PGE); } /* Flush all TLBs via a mov %cr3, %reg; mov %reg, %cr3 */ |