Attribute Macro panda_macros::unassigned_io_read

#[unassigned_io_read]

(Callback) Called when the guest attempts to read from an unmapped peripheral via MMIO

Callback ID:     PANDA_CB_UNASSIGNED_IO_WRITE

   Arguments:
     pc: Guest program counter at time of write
     addr: Physical address written to
     size: Size of write
     val: Pointer to a buffer that will be passed to the guest as the result of the read

   Return value:
     True if value read was changed by a PANDA plugin and should be returned
     False if error-logic (invalid write) should be run

Callback arguments: (&mut CPUState, target_ptr_t, hwaddr, usize, u64, )

Example

use panda::prelude::*;

#[panda::unassigned_io_read]
fn callback(_: &mut CPUState, _: target_ptr_t, _: hwaddr, _: usize, _: u64, ) -> bool {
    // do stuff
}