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| author | Ravikiran G Thirumalai | 2006-01-11 22:43:57 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2006-01-12 04:04:53 +0100 |
| commit | c11efdf94d3152443c11334720824bb6c7f6c655 (patch) | |
| tree | d4185d8de8b855aca51b6bec730aeab3342e2a0f /arch/x86_64/kernel/setup64.c | |
| parent | [PATCH] x86_64: Allow compilation on a 32bit biarch toolchain (diff) | |
| download | kernel-qcow2-linux-c11efdf94d3152443c11334720824bb6c7f6c655.tar.gz kernel-qcow2-linux-c11efdf94d3152443c11334720824bb6c7f6c655.tar.xz kernel-qcow2-linux-c11efdf94d3152443c11334720824bb6c7f6c655.zip | |
[PATCH] x86_64: Align and pad x86_64 GDT on page boundary
This patch is on the same lines as Zachary Amsden's i386 GDT page alignemnt
patch in -mm, but for x86_64.
Patch to align and pad x86_64 GDT on page boundries.
[AK: some minor cleanups and fixed incorrect TLS initialization
in CPU init.]
Signed-off-by: Nippun Goel <nippung@calsoftinc.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/setup64.c')
| -rw-r--r-- | arch/x86_64/kernel/setup64.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index 39e728cfe6a0..972f5d4ce823 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -213,16 +213,14 @@ void __cpuinit cpu_init (void) * Initialize the per-CPU GDT with the boot GDT, * and set up the GDT descriptor: */ - if (cpu) { - memcpy(cpu_gdt_table[cpu], cpu_gdt_table[0], GDT_SIZE); - } + if (cpu) + memcpy(cpu_gdt(cpu), cpu_gdt_table, GDT_SIZE); cpu_gdt_descr[cpu].size = GDT_SIZE; - cpu_gdt_descr[cpu].address = (unsigned long)cpu_gdt_table[cpu]; asm volatile("lgdt %0" :: "m" (cpu_gdt_descr[cpu])); asm volatile("lidt %0" :: "m" (idt_descr)); - memcpy(me->thread.tls_array, cpu_gdt_table[cpu], GDT_ENTRY_TLS_ENTRIES * 8); + memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8); syscall_init(); wrmsrl(MSR_FS_BASE, 0); |