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-rw-r--r--arch/powerpc/kernel/irq.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 248ee7e5beb..4c5891de162 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -189,6 +189,11 @@ notrace unsigned int __check_irq_replay(void)
}
#endif /* CONFIG_PPC_BOOK3E */
+ /* Check if an hypervisor Maintenance interrupt happened */
+ local_paca->irq_happened &= ~PACA_IRQ_HMI;
+ if (happened & PACA_IRQ_HMI)
+ return 0xe60;
+
/* There should be nothing left ! */
BUG_ON(local_paca->irq_happened != 0);
@@ -377,6 +382,14 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_printf(p, "%10u ", per_cpu(irq_stat, j).mce_exceptions);
seq_printf(p, " Machine check exceptions\n");
+ if (cpu_has_feature(CPU_FTR_HVMODE)) {
+ seq_printf(p, "%*s: ", prec, "HMI");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ",
+ per_cpu(irq_stat, j).hmi_exceptions);
+ seq_printf(p, " Hypervisor Maintenance Interrupts\n");
+ }
+
#ifdef CONFIG_PPC_DOORBELL
if (cpu_has_feature(CPU_FTR_DBELL)) {
seq_printf(p, "%*s: ", prec, "DBL");
@@ -400,6 +413,7 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
sum += per_cpu(irq_stat, cpu).mce_exceptions;
sum += per_cpu(irq_stat, cpu).spurious_irqs;
sum += per_cpu(irq_stat, cpu).timer_irqs_others;
+ sum += per_cpu(irq_stat, cpu).hmi_exceptions;
#ifdef CONFIG_PPC_DOORBELL
sum += per_cpu(irq_stat, cpu).doorbell_irqs;
#endif