diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-10-15 23:16:07 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-15 23:16:07 +0100 |
| commit | 2502991560dc8244dbe10e48473d85722c1e2ec1 (patch) | |
| tree | 63b1f3be2ed56ff06f1e8db709e4ce85d69c3add /include/asm-x86/desc.h | |
| parent | 7e69a8c4d06b7ecb874f571e82b715a9f79bc3c4 (diff) | |
| parent | a9ff8f6462635c8d9f8d64b7b10ddcea8404d77b (diff) | |
Merge branch 'fixes' into for-linus
Conflicts:
arch/arm/mach-versatile/core.c
Diffstat (limited to 'include/asm-x86/desc.h')
| -rw-r--r-- | include/asm-x86/desc.h | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h index a44c4dc7059..f06adac7938 100644 --- a/include/asm-x86/desc.h +++ b/include/asm-x86/desc.h @@ -1,5 +1,5 @@ -#ifndef _ASM_DESC_H_ -#define _ASM_DESC_H_ +#ifndef ASM_X86__DESC_H +#define ASM_X86__DESC_H #ifndef __ASSEMBLY__ #include <asm/desc_defs.h> @@ -24,6 +24,11 @@ static inline void fill_ldt(struct desc_struct *desc, desc->d = info->seg_32bit; desc->g = info->limit_in_pages; desc->base2 = (info->base_addr & 0xff000000) >> 24; + /* + * Don't allow setting of the lm bit. It is useless anyway + * because 64bit system calls require __USER_CS: + */ + desc->l = 0; } extern struct desc_ptr idt_descr; @@ -97,7 +102,15 @@ static inline int desc_empty(const void *ptr) native_write_gdt_entry(dt, entry, desc, type) #define write_idt_entry(dt, entry, g) \ native_write_idt_entry(dt, entry, g) -#endif + +static inline void paravirt_alloc_ldt(struct desc_struct *ldt, unsigned entries) +{ +} + +static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries) +{ +} +#endif /* CONFIG_PARAVIRT */ static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate) @@ -338,20 +351,16 @@ static inline void set_system_intr_gate(unsigned int n, void *addr) _set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS); } -static inline void set_trap_gate(unsigned int n, void *addr) +static inline void set_system_trap_gate(unsigned int n, void *addr) { BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS); + _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS); } -static inline void set_system_gate(unsigned int n, void *addr) +static inline void set_trap_gate(unsigned int n, void *addr) { BUG_ON((unsigned)n > 0xFF); -#ifdef CONFIG_X86_32 - _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS); -#else - _set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS); -#endif + _set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS); } static inline void set_task_gate(unsigned int n, unsigned int gdt_entry) @@ -366,7 +375,7 @@ static inline void set_intr_gate_ist(int n, void *addr, unsigned ist) _set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS); } -static inline void set_system_gate_ist(int n, void *addr, unsigned ist) +static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist) { BUG_ON((unsigned)n > 0xFF); _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS); @@ -397,4 +406,4 @@ static inline void set_system_gate_ist(int n, void *addr, unsigned ist) #endif /* __ASSEMBLY__ */ -#endif +#endif /* ASM_X86__DESC_H */ |