From: Markus Armbruster <armbru@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Philippe Mathieu-Daudé" <philmd@redhat.com>,
"Thomas Huth" <thuth@redhat.com>,
qemu-devel@nongnu.org, "Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] hw/input/pckbd: The i8042 device should not be user_creatable
Date: Mon, 08 Apr 2019 08:01:13 +0200 [thread overview]
Message-ID: <87ef6djas6.fsf@dusky.pond.sub.org> (raw)
In-Reply-To: <02729d68-9714-141b-b221-74ff31dca977@redhat.com> (Paolo Bonzini's message of "Fri, 5 Apr 2019 09:58:21 +0200")
Paolo Bonzini <pbonzini@redhat.com> writes:
> On 04/04/19 22:49, Philippe Mathieu-Daudé wrote:
>> While I wonder if someone still use the r4k machine, I have more doubts
>> about users running with more the 2 -serial options...
>
> I sort of remember ISA extension cards that had jumpers or dip switches
> to choose between COM1/COM2/COM3/COM4...
They still exist, with I/O ports and IRQ lines selectable via jumpers &
DIP switches. Traditionally:
COM1: I/O port 0x3F8, IRQ 4
COM2: I/O port 0x2F8, IRQ 3
COM3: I/O port 0x3E8, IRQ 4
COM4: I/O port 0x2E8, IRQ 3
WARNING: multiple messages have this Message-ID (diff)
From: Markus Armbruster <armbru@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Thomas Huth" <thuth@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>,
qemu-devel@nongnu.org, "Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] hw/input/pckbd: The i8042 device should not be user_creatable
Date: Mon, 08 Apr 2019 08:01:13 +0200 [thread overview]
Message-ID: <87ef6djas6.fsf@dusky.pond.sub.org> (raw)
Message-ID: <20190408060113.mQNCEwpJlKgyLbUjf7stHfmkBbb2Z7UUPiCgkuUP5Ds@z> (raw)
In-Reply-To: <02729d68-9714-141b-b221-74ff31dca977@redhat.com> (Paolo Bonzini's message of "Fri, 5 Apr 2019 09:58:21 +0200")
Paolo Bonzini <pbonzini@redhat.com> writes:
> On 04/04/19 22:49, Philippe Mathieu-Daudé wrote:
>> While I wonder if someone still use the r4k machine, I have more doubts
>> about users running with more the 2 -serial options...
>
> I sort of remember ISA extension cards that had jumpers or dip switches
> to choose between COM1/COM2/COM3/COM4...
They still exist, with I/O ports and IRQ lines selectable via jumpers &
DIP switches. Traditionally:
COM1: I/O port 0x3F8, IRQ 4
COM2: I/O port 0x2F8, IRQ 3
COM3: I/O port 0x3E8, IRQ 4
COM4: I/O port 0x2E8, IRQ 3
next prev parent reply other threads:[~2019-04-08 6:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-04 7:14 [Qemu-devel] [PATCH] hw/input/pckbd: The i8042 device should not be user_creatable Thomas Huth
2019-04-04 10:07 ` Paolo Bonzini
2019-04-04 13:29 ` Philippe Mathieu-Daudé
2019-04-04 14:19 ` Thomas Huth
2019-04-04 16:30 ` Markus Armbruster
2019-04-05 10:57 ` Thomas Huth
2019-04-05 10:57 ` Thomas Huth
2019-04-08 6:29 ` Markus Armbruster
2019-04-04 16:40 ` Philippe Mathieu-Daudé
2019-04-04 20:49 ` Philippe Mathieu-Daudé
2019-04-05 7:58 ` Paolo Bonzini
2019-04-08 6:01 ` Markus Armbruster [this message]
2019-04-08 6:01 ` Markus Armbruster
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