Am 09.06.2011 um 17:12 schrieb Markus Armbruster:
Markus Armbruster <arm...@redhat.com> writes:
Andreas Färber <andreas.faer...@web.de> writes:
Signed-off-by: Andreas Färber <andreas.faer...@web.de>
---
hw/isa-bus.c | 14 ++++++++++++++
hw/isa.h | 1 +
2 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/hw/isa-bus.c b/hw/isa-bus.c
index 1f64673..6ac3e61 100644
--- a/hw/isa-bus.c
+++ b/hw/isa-bus.c
@@ -80,6 +80,20 @@ void isa_init_irq(ISADevice *dev, qemu_irq *p,
int isairq)
dev->nirqs++;
}
+void isa_discard_irq(ISADevice *dev, int isairq)
+{
+ int i, j;
+ for (i = 0; i < dev->nirqs; i++) {
+ if (dev->isairq[i] == isairq) {
+ for (j = i + 1; j < dev->nirqs; j++) {
+ dev->isairq[j - 1] = dev->isairq[j];
+ }
+ dev->nirqs--;
+ break;
+ }
+ }
+}
Your isa_discard_irq() keeps the qemu_irq that was set by
isa_init_irq()
around, which is perhaps not perfectly clean, but should work.
We could NULL it and hope that no one uses it unchecked from some
bottom-half or I/O thread.
Or do we have some global no-op qemu_irq?
Andreas
