From: Bernhard Beschow <[email protected]>
Co-developed-by: Paolo Bonzini <[email protected]>
Signed-off-by: Bernhard Beschow <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Paolo Bonzini <[email protected]>
---
rust/hw/char/pl011/src/device.rs | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/rust/hw/char/pl011/src/device.rs b/rust/hw/char/pl011/src/device.rs
index 92dc295540e..5b53f2649f1 100644
--- a/rust/hw/char/pl011/src/device.rs
+++ b/rust/hw/char/pl011/src/device.rs
@@ -305,6 +305,12 @@ fn read_data_register(&mut self, update: &mut bool) -> u32
{
}
fn write_data_register(&mut self, value: u32) -> bool {
+ if !self.control.enable_uart() {
+ log_mask_ln!(Log::GuestError, "PL011 data written to disabled
UART");
+ }
+ if !self.control.enable_transmit() {
+ log_mask_ln!(Log::GuestError, "PL011 data written to disabled TX
UART");
+ }
// interrupts always checked
let _ = self.loopback_tx(value.into());
self.int_level |= Interrupt::TX;
--
2.49.0
