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Diffstat (limited to 'hw/pc.c')
-rw-r--r--hw/pc.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/hw/pc.c b/hw/pc.c
index df0c48e41b..ba1f19d7e8 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -103,6 +103,11 @@ static void ioport80_write(void *opaque, hwaddr addr, uint64_t data,
{
}
+static uint64_t ioport80_read(void *opaque, hwaddr addr, unsigned size)
+{
+ return 0xffffffffffffffffULL;
+}
+
/* MSDOS compatibility mode FPU exception support */
static qemu_irq ferr_irq;
@@ -123,6 +128,11 @@ static void ioportF0_write(void *opaque, hwaddr addr, uint64_t data,
qemu_irq_lower(ferr_irq);
}
+static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size)
+{
+ return 0xffffffffffffffffULL;
+}
+
/* TSC handling */
uint64_t cpu_get_tsc(CPUX86State *env)
{
@@ -501,7 +511,7 @@ static void port92_class_initfn(ObjectClass *klass, void *data)
dc->vmsd = &vmstate_port92_isa;
}
-static TypeInfo port92_info = {
+static const TypeInfo port92_info = {
.name = "port92",
.parent = TYPE_ISA_DEVICE,
.instance_size = sizeof(Port92State),
@@ -960,6 +970,7 @@ static void cpu_request_exit(void *opaque, int irq, int level)
static const MemoryRegionOps ioport80_io_ops = {
.write = ioport80_write,
+ .read = ioport80_read,
.endianness = DEVICE_NATIVE_ENDIAN,
.impl = {
.min_access_size = 1,
@@ -969,6 +980,7 @@ static const MemoryRegionOps ioport80_io_ops = {
static const MemoryRegionOps ioportF0_io_ops = {
.write = ioportF0_write,
+ .read = ioportF0_read,
.endianness = DEVICE_NATIVE_ENDIAN,
.impl = {
.min_access_size = 1,