From: Avi Kivity <avi@qumranet.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: kvm-devel <kvm-devel@lists.sourceforge.net>
Subject: Re: KVM: PIT: support mode 4
Date: Wed, 30 Apr 2008 20:07:02 +0300 [thread overview]
Message-ID: <4818A736.40400@qumranet.com> (raw)
In-Reply-To: <20080430162354.GA25309@dmt>
Marcelo Tosatti wrote:
> The in-kernel PIT emulation ignores pending timers if operating under
> mode 4, which for example DragonFlyBSD uses (and Plan9 too, apparently).
>
> Mode 4 seems to be similar to one-shot mode, other than the fact that it
> starts counting after the next CLK pulse once programmed, while mode 1
> starts counting immediately, so add a FIXME to enhance precision.
>
> Fixes https://sourceforge.net/tracker/?func=detail&atid=893831&aid=1952988&group_id=180599
>
Applied, thanks.
--
Any sufficiently difficult bug is indistinguishable from a feature.
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prev parent reply other threads:[~2008-04-30 17:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-30 16:23 KVM: PIT: support mode 4 Marcelo Tosatti
2008-04-30 17:07 ` Avi Kivity [this message]
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