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authorChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:07 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:17 +0200
commit9260319e7411ff8281700a532caa436f40120ec4 (patch)
tree2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues_text/target_missing/host_missing/accel_missing/1106
parent225caa38269323af1bfc2daadff5ec8bd930747f (diff)
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+undefined address access cause failure
+Description of problem:
+Hi,
+I used serial device as below:
+qemu/hw/char/serial.c
+It defines only support 8 registers address space(offset 0x00-0x32). And in guest os, the hardware is synopsys dw_apb_uart which is compatible with 16550.
+when it access low 8 registers, it works ok. but it may access high address(0x8c) which serial.c not defined, then fail occur.
+
+Is there anyway to handle this, access address which device not defined, expect it no handle, but not cause system crash. like read is zero and write ignore.