Signed-off-by: Andreas Färber <andreas.faer...@web.de>
---
hw/isa-bus.c | 15 +++++++++++++++
hw/isa.h | 1 +
2 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/hw/isa-bus.c b/hw/isa-bus.c
index bbafb75..6e33d80 100644
--- a/hw/isa-bus.c
+++ b/hw/isa-bus.c
@@ -105,6 +105,21 @@ void isa_init_ioport(ISADevice *dev, uint16_t ioport)
isa_init_ioport_range(dev, ioport, 1);
}
+void isa_discard_ioport_range(ISADevice *dev, uint16_t start, uint16_t length)
+{
+ int i, j;
+ for (i = 0; i < dev->nioports; i++) {
+ if (dev->ioports[i] == start) {
+ for (j = 0; j < dev->nioports - i; j++) {
+ dev->ioports[i + j] = dev->ioports[i + length + j];
+ }
+ dev->nioports -= length;
+ break;
+ }
+ }
+ assert(dev->nioports >= 0);
+}
+
static int isa_qdev_init(DeviceState *qdev, DeviceInfo *base)
{
ISADevice *dev = DO_UPCAST(ISADevice, qdev, qdev);
diff --git a/hw/isa.h b/hw/isa.h
index 1eefd17..fe1a20c 100644
--- a/hw/isa.h
+++ b/hw/isa.h
@@ -34,6 +34,7 @@ qemu_irq isa_get_irq(int isairq);
void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq);
void isa_init_ioport(ISADevice *dev, uint16_t ioport);
void isa_init_ioport_range(ISADevice *dev, uint16_t start, uint16_t length);
+void isa_discard_ioport_range(ISADevice *dev, uint16_t start, uint16_t length);
void isa_qdev_register(ISADeviceInfo *info);
ISADevice *isa_create(const char *name);
ISADevice *isa_try_create(const char *name);
--
1.7.5.3
