Add documentation for the new exit code.
Signed-off-by: Pavel Fedin <p.fe...@samsung.com>
---
Documentation/virtual/kvm/api.txt | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/Documentation/virtual/kvm/api.txt
b/Documentation/virtual/kvm/api.txt
index 092ee9f..d8aae4c 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -3331,6 +3331,20 @@ the userspace IOAPIC should process the EOI and
retrigger the interrupt if
it is still asserted. Vector is the LAPIC interrupt vector for which the
EOI was received.
+ /* KVM_EXIT_IRQ */
+ struct kvm_irq_level irq;
+
+Indicates that an interrupt happens, to be processed by irqchip implemented in
+userspace. irq.irq specifies the raw IRQ number, and irq.status is to be
+interpreted according to interrupt type:
+ For level-triggered interrupts irq.status is set to new level of the line, and
+ the exit happens upon level change.
+ For edge-triggered interrupts irq.status is set to active level of the line
+ (low or high), and the exit happens when the line is pulsed.
+
+CPU-private interrupts (like per-CPU timers) belong to the vCPU where the exit
+happened.
+
/* Fix the size of the union. */
char padding[256];
};
--
2.4.4
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