diff options
Diffstat (limited to 'arch/x86/kernel/idt.c')
| -rw-r--r-- | arch/x86/kernel/idt.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c index 61b490c69250..6107ee1cb8d5 100644 --- a/arch/x86/kernel/idt.c +++ b/arch/x86/kernel/idt.c @@ -44,6 +44,10 @@ struct idt_data { #define ISTG(_vector, _addr, _ist) \ G(_vector, _addr, _ist, GATE_INTERRUPT, DPL0, __KERNEL_CS) +/* System interrupt gate with interrupt stack */ +#define SISTG(_vector, _addr, _ist) \ + G(_vector, _addr, _ist, GATE_INTERRUPT, DPL3, __KERNEL_CS) + /* Task gate */ #define TSKG(_vector, _gdt) \ G(_vector, NULL, DEFAULT_STACK, GATE_TASK, DPL0, _gdt << 3) @@ -181,7 +185,7 @@ gate_desc debug_idt_table[IDT_ENTRIES] __page_aligned_bss; static const __initdata struct idt_data ist_idts[] = { ISTG(X86_TRAP_DB, debug, DEBUG_STACK), ISTG(X86_TRAP_NMI, nmi, NMI_STACK), - ISTG(X86_TRAP_BP, int3, DEBUG_STACK), + SISTG(X86_TRAP_BP, int3, DEBUG_STACK), ISTG(X86_TRAP_DF, double_fault, DOUBLEFAULT_STACK), #ifdef CONFIG_X86_MCE ISTG(X86_TRAP_MC, &machine_check, MCE_STACK), |