[Qemu-devel] BIOS regression since v2.3.0 (misaligned longword i/o to address 0xffff)

[Stefan Weil]

Hi,

since commit 21f5826a04d38e19488f917e1eef22751490c769
"seabios: update to 1.8.0 release" there is a misaligned i/o access
caused by the PC BIOS.

QEMU's PC emulation (qemu-system-i386, qemu-system-x86_64)
with enabled trace backend reports the misaligned i/o access
when running the BIOS code:

Misaligned i/o to address 0x0000ffff with size 4 for memory region io

("to address 0x0000ffff" was added by my debug code)

This issue was reported by users of QEMU for Windows,
but it is not Windows specific.

Regards
Stefan