From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Wed, 30 Apr 2008 16:23:54 +0000 (-0300)
Subject: KVM: PIT: support mode 4
X-Git-Tag: v2.6.26-rc2~80^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ece15babfa514e06118f62f4df2c757d6209f4f0;p=pandora-kernel.git

KVM: PIT: support mode 4

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 sourceforge bug 1952988.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Acked-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

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