* [Qemu-devel] Why is qdev vga-isa no_user?
@ 2011-05-13 13:36 Markus Armbruster
2011-05-13 20:28 ` Blue Swirl
0 siblings, 1 reply; 3+ messages in thread
From: Markus Armbruster @ 2011-05-13 13:36 UTC (permalink / raw)
To: qemu-devel; +Cc: Blue Swirl
Blue, you did the conversion (commit 7435b791), care to explain?
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] Why is qdev vga-isa no_user?
2011-05-13 13:36 [Qemu-devel] Why is qdev vga-isa no_user? Markus Armbruster
@ 2011-05-13 20:28 ` Blue Swirl
2011-05-16 8:03 ` Markus Armbruster
0 siblings, 1 reply; 3+ messages in thread
From: Blue Swirl @ 2011-05-13 20:28 UTC (permalink / raw)
To: Markus Armbruster; +Cc: qemu-devel
On Fri, May 13, 2011 at 4:36 PM, Markus Armbruster <armbru@redhat.com> wrote:
> Blue, you did the conversion (commit 7435b791), care to explain?
Because I/O ports of VGA are fixed, so there can be only zero (which
is handled by -vga none) or one devices.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] Why is qdev vga-isa no_user?
2011-05-13 20:28 ` Blue Swirl
@ 2011-05-16 8:03 ` Markus Armbruster
0 siblings, 0 replies; 3+ messages in thread
From: Markus Armbruster @ 2011-05-16 8:03 UTC (permalink / raw)
To: Blue Swirl; +Cc: qemu-devel
Blue Swirl <blauwirbel@gmail.com> writes:
> On Fri, May 13, 2011 at 4:36 PM, Markus Armbruster <armbru@redhat.com> wrote:
>> Blue, you did the conversion (commit 7435b791), care to explain?
>
> Because I/O ports of VGA are fixed, so there can be only zero (which
> is handled by -vga none) or one devices.
Reason I'm asking: the other VGA devices can be configured with "-device
NAME", like any other user-configurable device. I want that for
isa-vga, too.
Of any device with fixed resources, there can be at most one. If you
configure more than one, you get an error. Same as for inter-device
resource clashes. Our reporting of resource clashes isn't exactly user
friendly, and should be improved.
no_user is strictly for devices that aren't user-configurable at all.
I'll post a patch to bring isa-vga in line with the other VGA devices.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2011-05-13 13:36 [Qemu-devel] Why is qdev vga-isa no_user? Markus Armbruster
2011-05-13 20:28 ` Blue Swirl
2011-05-16 8:03 ` Markus Armbruster
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