From: Thomas Gleixner <[email protected]> Convert #OLD_MF to IDTENTRY: - Implement the C entry point with DEFINE_IDTENTRY - Emit the ASM stub with DECLARE_IDTENTRY - Remove the ASM idtentry in 64bit - Remove the open coded ASM entry code in 32bit - Fixup the XEN/PV code - Remove the old prototyoes
No functional change. Signed-off-by: Thomas Gleixner <[email protected]> --- arch/x86/entry/entry_32.S | 7 ------- arch/x86/entry/entry_64.S | 1 - arch/x86/include/asm/idtentry.h | 1 + arch/x86/include/asm/traps.h | 3 --- arch/x86/kernel/idt.c | 2 +- arch/x86/kernel/traps.c | 7 ++++++- arch/x86/xen/enlighten_pv.c | 2 +- arch/x86/xen/xen-asm_64.S | 2 +- 8 files changed, 10 insertions(+), 15 deletions(-) --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -1318,13 +1318,6 @@ SYM_CODE_START(native_iret) SYM_CODE_END(native_iret) #endif -SYM_CODE_START(coprocessor_segment_overrun) - ASM_CLAC - pushl $0 - pushl $do_coprocessor_segment_overrun - jmp common_exception -SYM_CODE_END(coprocessor_segment_overrun) - SYM_CODE_START(invalid_TSS) ASM_CLAC pushl $do_invalid_TSS --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -1074,7 +1074,6 @@ apicinterrupt IRQ_WORK_VECTOR irq_work */ idtentry X86_TRAP_BP int3 do_int3 has_error_code=0 -idtentry X86_TRAP_OLD_MF coprocessor_segment_overrun do_coprocessor_segment_overrun has_error_code=0 idtentry X86_TRAP_TS invalid_TSS do_invalid_TSS has_error_code=1 idtentry X86_TRAP_NP segment_not_present do_segment_not_present has_error_code=1 idtentry X86_TRAP_SS stack_segment do_stack_segment has_error_code=1 --- a/arch/x86/include/asm/idtentry.h +++ b/arch/x86/include/asm/idtentry.h @@ -82,5 +82,6 @@ DECLARE_IDTENTRY(X86_TRAP_OF, exc_overf DECLARE_IDTENTRY(X86_TRAP_BR, exc_bounds); DECLARE_IDTENTRY(X86_TRAP_UD, exc_invalid_op); DECLARE_IDTENTRY(X86_TRAP_NM, exc_device_not_available); +DECLARE_IDTENTRY(X86_TRAP_OLD_MF, exc_coproc_segment_overrun); #endif --- a/arch/x86/include/asm/traps.h +++ b/arch/x86/include/asm/traps.h @@ -17,7 +17,6 @@ asmlinkage void int3(void); #ifdef CONFIG_X86_64 asmlinkage void double_fault(void); #endif -asmlinkage void coprocessor_segment_overrun(void); asmlinkage void invalid_TSS(void); asmlinkage void segment_not_present(void); asmlinkage void stack_segment(void); @@ -37,7 +36,6 @@ asmlinkage void xen_xennmi(void); asmlinkage void xen_xendebug(void); asmlinkage void xen_int3(void); asmlinkage void xen_double_fault(void); -asmlinkage void xen_coprocessor_segment_overrun(void); asmlinkage void xen_invalid_TSS(void); asmlinkage void xen_segment_not_present(void); asmlinkage void xen_stack_segment(void); @@ -58,7 +56,6 @@ dotraplinkage void do_int3(struct pt_reg #if defined(CONFIG_X86_64) || defined(CONFIG_DOUBLEFAULT) dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code, unsigned long cr2); #endif -dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *regs, long error_code); dotraplinkage void do_invalid_TSS(struct pt_regs *regs, long error_code); dotraplinkage void do_segment_not_present(struct pt_regs *regs, long error_code); dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code); --- a/arch/x86/kernel/idt.c +++ b/arch/x86/kernel/idt.c @@ -75,7 +75,7 @@ static const __initconst struct idt_data INTG(X86_TRAP_BR, asm_exc_bounds), INTG(X86_TRAP_UD, asm_exc_invalid_op), INTG(X86_TRAP_NM, asm_exc_device_not_available), - INTG(X86_TRAP_OLD_MF, coprocessor_segment_overrun), + INTG(X86_TRAP_OLD_MF, asm_exc_coproc_segment_overrun), INTG(X86_TRAP_TS, invalid_TSS), INTG(X86_TRAP_NP, segment_not_present), INTG(X86_TRAP_SS, stack_segment), --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -236,6 +236,12 @@ DEFINE_IDTENTRY(exc_invalid_op) handle_invalid_op(regs); } +DEFINE_IDTENTRY(exc_coproc_segment_overrun) +{ + do_error_trap(regs, 0, "coprocessor segment overrun", + X86_TRAP_OLD_MF, SIGFPE, 0, NULL); +} + #define IP ((void __user *)uprobe_get_trap_addr(regs)) #define DO_ERROR(trapnr, signr, sicode, addr, str, name) \ dotraplinkage void do_##name(struct pt_regs *regs, long error_code) \ @@ -243,7 +249,6 @@ dotraplinkage void do_##name(struct pt_r do_error_trap(regs, error_code, str, trapnr, signr, sicode, addr); \ } -DO_ERROR(X86_TRAP_OLD_MF, SIGFPE, 0, NULL, "coprocessor segment overrun", coprocessor_segment_overrun) DO_ERROR(X86_TRAP_TS, SIGSEGV, 0, NULL, "invalid TSS", invalid_TSS) DO_ERROR(X86_TRAP_NP, SIGBUS, 0, NULL, "segment not present", segment_not_present) DO_ERROR(X86_TRAP_SS, SIGBUS, 0, NULL, "stack segment", stack_segment) --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -627,7 +627,7 @@ static struct trap_array_entry trap_arra TRAP_ENTRY(exc_bounds, false ), TRAP_ENTRY(exc_invalid_op, false ), TRAP_ENTRY(exc_device_not_available, false ), - { coprocessor_segment_overrun, xen_coprocessor_segment_overrun, false }, + TRAP_ENTRY(exc_coproc_segment_overrun, false ), { invalid_TSS, xen_invalid_TSS, false }, { segment_not_present, xen_segment_not_present, false }, { stack_segment, xen_stack_segment, false }, --- a/arch/x86/xen/xen-asm_64.S +++ b/arch/x86/xen/xen-asm_64.S @@ -38,7 +38,7 @@ xen_pv_trap asm_exc_bounds xen_pv_trap asm_exc_invalid_op xen_pv_trap asm_exc_device_not_available xen_pv_trap double_fault -xen_pv_trap coprocessor_segment_overrun +xen_pv_trap asm_exc_coproc_segment_overrun xen_pv_trap invalid_TSS xen_pv_trap segment_not_present xen_pv_trap stack_segment
