diff options
Diffstat (limited to 'arch/x86/kernel/irq.c')
| -rw-r--r-- | arch/x86/kernel/irq.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index e3c35668c7c5..22349f5c301b 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -22,6 +22,7 @@ #include <asm/desc.h> #include <asm/traps.h> #include <asm/thermal.h> +#include <asm/uintr.h> #define CREATE_TRACE_POINTS #include <asm/trace/irq_vectors.h> @@ -187,6 +188,11 @@ int arch_show_interrupts(struct seq_file *p, int prec) for_each_online_cpu(j) seq_printf(p, "%10u ", irq_stats(j)->uintr_spurious_count); seq_puts(p, " User-interrupt spurious event\n"); + + seq_printf(p, "%*s: ", prec, "UKN"); + for_each_online_cpu(j) + seq_printf(p, "%10u ", irq_stats(j)->uintr_kernel_notifications); + seq_puts(p, " User-interrupt kernel notification event\n"); #endif return 0; } @@ -356,6 +362,18 @@ DEFINE_IDTENTRY_SYSVEC_SIMPLE(sysvec_uintr_spurious_interrupt) ack_APIC_irq(); inc_irq_stat(uintr_spurious_count); } + +/* + * Handler for UINTR_KERNEL_VECTOR. + */ +DEFINE_IDTENTRY_SYSVEC(sysvec_uintr_kernel_notification) +{ + /* TODO: Add entry-exit tracepoints */ + ack_APIC_irq(); + inc_irq_stat(uintr_kernel_notifications); + + uintr_wake_up_process(); +} #endif |