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Re: [Qemu-devel] Re: Question about KVM and PC speaker

From: Avi Kivity
Subject: Re: [Qemu-devel] Re: Question about KVM and PC speaker
Date: Thu, 23 Apr 2009 14:09:52 +0300
User-agent: Thunderbird (X11/20090320)

Jan Kiszka wrote:
Avi Kivity wrote:
Jan Kiszka wrote:
Huh, it is! Then the problem is a KVM-only thing: The kernel part hooks
onto those resources but doesn't communicate changes to this user space
In this case, the -no-kvm-pit option should help.

Probably fine in many cases (where the PIT is no longer used anyway),
just a bit unintuitive for users.

Yes, it's only a workaround.

I wonder why KVM moved port 0x61 handling into kernel space at all. By
leaving it in pcspk hands and extending the latter to sync with the
in-kernel PIT on sample generation, this speaker regression (of
kvm-userspace) should have been avoidable.

I'd rather not have partial components in the kernel. This case is particularly icky though.

error compiling committee.c: too many arguments to function

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