diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2008-01-30 13:30:13 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:30:13 +0100 |
| commit | fc2d625c4fac18e672a3b7c61af5de22d7ab7d87 (patch) | |
| tree | a6d450d94181bca5d058f73e9a4a6163058664b6 /include/asm-x86/desc_64.h | |
| parent | 4edc8f5454814201d2fb222354284365b4f0537c (diff) | |
x86: introduce ldt_write accessor
Create a ldt write accessor like the 32 bit one.
Preparatory patch for merging ldt.c and anyway necessary for
64bit paravirt ops.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/desc_64.h')
| -rw-r--r-- | include/asm-x86/desc_64.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h index bb2009ecbbc..7d48df72aef 100644 --- a/include/asm-x86/desc_64.h +++ b/include/asm-x86/desc_64.h @@ -38,6 +38,15 @@ extern struct desc_struct default_ldt[]; extern struct gate_struct idt_table[]; extern struct desc_ptr cpu_gdt_descr[]; +static inline void write_ldt_entry(struct desc_struct *ldt, + int entry, u32 entry_low, u32 entry_high) +{ + __u32 *lp = (__u32 *)((entry << 3) + (char *)ldt); + + lp[0] = entry_low; + lp[1] = entry_high; +} + /* the cpu gdt accessor */ #define cpu_gdt(_cpu) ((struct desc_struct *)cpu_gdt_descr[_cpu].address) |