Re: [Xen-devel] [PATCH qemu-traditional] ioreq: Support 32-bit default_ioport_* accesses

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Boris Ostrovsky writes ("[PATCH qemu-traditional] ioreq: Support 32-bit 
default_ioport_* accesses"):
> Recent changes in ACPICA (specifically, Linux commit 66b1ed5aa8dd ("ACPICA:
> ACPI 2.0, Hardware: Add access_width/bit_offset support for
> acpi_hw_write()") result in guests issuing 32-bit accesses to IO space.
> 
> QEMU needs to be able to handle them.

I'm kind of missing something here.  If the specification has recently
been updated to permit this, why should old hardware support it ?

(I tried to find the Linux upstream git commit you're referring to but
my linux.git is up to date and it seems not to be fetching within a
reasonable time, so I thought I would reply now.)

Ian.

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