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[Qemu-devel] Re: >2 serial ports?

From: Gerd Hoffmann
Subject: [Qemu-devel] Re: >2 serial ports?
Date: Wed, 17 Mar 2010 10:17:53 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100301 Fedora/3.0.3-1.fc12 Thunderbird/3.0.3

On 03/17/10 09:38, Michael Tokarev wrote:
Since 0.12, it appears that kvm does not allow more than
2 serial ports for a guest:

$ kvm \
  -serial unix:s1,server,nowait \
  -serial unix:s2,server,nowait \
  -serial unix:s3,server,nowait
isa irq 4 already assigned

Is there a work-around for this?

Oh, well, yes, I remember. qemu is more strict on ISA irq sharing now. A bit too strict.

/me goes dig out a old patch which never made it upstream for some reason I forgot. Attached.


Attachment: 0001-isa-refine-irq-reservations.patch
Description: Text document

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