Jan Kiszka a écrit :
On 2011-09-18 16:56, Hervé Poussineau wrote:
Following patches aim to change ISA bus to a first-citizen class in Qemu.
They add ISA bus ops, like for scsi and usb buses.
Current ISA bridges (PIIX3, PIIX4, EBUS and VT82C686) are converted
to this new API, and a simple 'isabus-bridge' device is added.
isa_address_space() operation can probably be used to remove the
infamous isa_mem_base variable. However, some work is already done
in this direction on the ML, so I didn't change anything.
Finally, add bus argument to isa_create() functions, so architectures
with multiple ISA buses (like some Alpha systems) can be emulated.
As RFC didn't receive much comments, I put this serie as patches.
Nice work. I had something similar unfinished here, but this one looks
better on first glace.
Thanks.
Still, I would go one step further and kill the global default isa_bus:
all ISA API user should pass in the bus they created and obtained from
some creator.
That's indeed the next step I have in mind.
It shouldn't be hard to do; that's mostly adding an isa_bus parameter in
all functions from ISA bridge creation to all ISA devices. However, lots
of prototypes will probably have to be changed, so I wanted to do it in
a second patchset.
Hervé
