diff options
| author | Zachary Amsden <zach@vmware.com> | 2006-01-06 09:11:47 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 17:33:33 +0100 |
| commit | 7c4cb60e5b97677424e95baee9c29df54b26e6ba (patch) | |
| tree | a2ad6e6104e153d15bc4bfbb67f74b0e05fea03c /arch/i386/kernel/cpu/common.c | |
| parent | [PATCH] mips: remove include/asm-mips/riscos-syscall.h (diff) | |
| download | linux-7c4cb60e5b97677424e95baee9c29df54b26e6ba.tar.xz linux-7c4cb60e5b97677424e95baee9c29df54b26e6ba.zip | |
[PATCH] x86: GDT alignment fix
Make GDT page aligned and page padded to support running inside of a
hypervisor. This prevents false sharing of the GDT page with other hot
data, which is not allowed in Xen, and causes performance problems in
VMware.
Rather than go back to the old method of statically allocating the GDT
(which wastes unneded space for non-present CPUs), the GDT for APs is
allocated dynamically.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Cc: "Seth, Rohit" <rohit.seth@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/kernel/cpu/common.c')
| -rw-r--r-- | arch/i386/kernel/cpu/common.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index 31e344b26bae..cbc32069683f 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/arch/i386/kernel/cpu/common.c @@ -18,9 +18,6 @@ #include "cpu.h" -DEFINE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]); -EXPORT_PER_CPU_SYMBOL(cpu_gdt_table); - DEFINE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]); EXPORT_PER_CPU_SYMBOL(cpu_16bit_stack); |