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-rw-r--r--arch/powerpc/include/asm/xive.h3
-rw-r--r--arch/powerpc/sysdev/xive/common.c3
2 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/xive.h b/arch/powerpc/include/asm/xive.h
index 0e77005cf021..b619a5585cd6 100644
--- a/arch/powerpc/include/asm/xive.h
+++ b/arch/powerpc/include/asm/xive.h
@@ -58,6 +58,9 @@ struct xive_irq_data {
#define XIVE_IRQ_FLAG_EOI_FW 0x10
#define XIVE_IRQ_FLAG_H_INT_ESB 0x20
+/* Special flag set by KVM for excalation interrupts */
+#define XIVE_IRQ_NO_EOI 0x80
+
#define XIVE_INVALID_CHIP_ID -1
/* A queue tracking structure in a CPU */
diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
index a3b8d7d1316e..2547b6021e6a 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -367,7 +367,8 @@ static void xive_irq_eoi(struct irq_data *d)
* EOI the source if it hasn't been disabled and hasn't
* been passed-through to a KVM guest
*/
- if (!irqd_irq_disabled(d) && !irqd_is_forwarded_to_vcpu(d))
+ if (!irqd_irq_disabled(d) && !irqd_is_forwarded_to_vcpu(d) &&
+ !(xd->flags & XIVE_IRQ_NO_EOI))
xive_do_source_eoi(irqd_to_hwirq(d), xd);
/*