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| author | Alexander van Heukelum <heukelum@fastmail.fm> | 2008-10-03 22:00:32 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-13 10:33:22 +0200 |
| commit | 699d2937d45d9dabc1772d0d07501ccc43885c23 (patch) | |
| tree | 56bc2da85a2a0737d86df18a5c1e02d646df37e1 /include | |
| parent | 3d2a71a596bd9c761c8487a2178e95f8a61da083 (diff) | |
| download | blackbird-op-linux-699d2937d45d9dabc1772d0d07501ccc43885c23.tar.gz blackbird-op-linux-699d2937d45d9dabc1772d0d07501ccc43885c23.zip | |
traps: x86: converge trap_init functions
- set_system_gate on i386 is really set_system_trap_gate
- set_system_gate on x86_64 is really set_system_intr_gate
- ist=0 means no special stack switch is done:
- introduce STACKFAULT_STACK, DOUBLEFAULT_STACK, NMI_STACK,
DEBUG_STACK and MCE_STACK as on x86_64.
- use the _ist variants with XXX_STACK set to zero
- remove set_system_gate
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
traps: x86: correct copy/paste bug: a trap is a GATE_TRAP
Fix copy/paste/forgot-to-edit bug in desc.h.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86/desc.h | 14 | ||||
| -rw-r--r-- | include/asm-x86/page_32.h | 6 |
2 files changed, 11 insertions, 9 deletions
diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h index ebc307817e98..f06adac7938c 100644 --- a/include/asm-x86/desc.h +++ b/include/asm-x86/desc.h @@ -351,20 +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) @@ -379,7 +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); diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h index 5d6a68a1067a..e8d80d1de237 100644 --- a/include/asm-x86/page_32.h +++ b/include/asm-x86/page_32.h @@ -20,6 +20,12 @@ #endif #define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) +#define STACKFAULT_STACK 0 +#define DOUBLEFAULT_STACK 1 +#define NMI_STACK 0 +#define DEBUG_STACK 0 +#define MCE_STACK 0 +#define N_EXCEPTION_STACKS 1 #ifdef CONFIG_X86_PAE /* 44=32+12, the limit we can fit into an unsigned long pfn */ |
