Just put RAM regions in the unimplemented spaces in the MMIO region. These
regions have undefined behaviour, but this at least stops QEMU from segfaulting
when the guest bangs on these registers (and sucessfully fakes reading and
writing the registers with no side effects).
Signed-off-by: Peter Crosthwaite <peter.crosthwa...@xilinx.com>
---
changed from v1:
greatly simplified implementation.
hw/usb/hcd-ehci.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index 26086b2..77874ae 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -2797,7 +2797,7 @@ static void usb_ehci_initfn(EHCIState *s, DeviceState
*dev)
qemu_register_reset(ehci_reset, s);
qemu_add_vm_change_state_handler(usb_ehci_vm_state_change, s);
- memory_region_init(&s->mem, "ehci", MMIO_SIZE);
+ memory_region_init_ram(&s->mem, "ehci", MMIO_SIZE);
memory_region_init_io(&s->mem_caps, &ehci_mmio_caps_ops, s,
"capabilities", CAPA_SIZE);
memory_region_init_io(&s->mem_opreg, &ehci_mmio_opreg_ops, s,
--
1.7.0.4
