From: Anthony Liguori <anthony@codemonkey.ws>
To: Gleb Natapov <gleb@redhat.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] fix rtc-td-hack on host without high-res timers
Date: Tue, 08 Dec 2009 16:12:28 -0600 [thread overview]
Message-ID: <4B1ECF4C.2080204@codemonkey.ws> (raw)
In-Reply-To: <20091208135054.GE7645@redhat.com>
Gleb Natapov wrote:
> On hosts without high-res timers it is impossible to inject rtc interrupt
> faster then 1kHz. Windows sometimes configures RTC to generate 1kHz
> interrupts, so we can't inject missed interrupts when running on such
> hosts. Always injecting an interrupt on REG_C read is also not an option
> since Windows wait for REG_C to become zero with interrupt disabled
> during boot. This patch uses mixed approach: accelerate timer + inject
> up to 1000 interrupts on REG_C read.
>
> Signed-off-by: Gleb Natapov <gleb@redhat.com>
>
Looks good. I'll commit this for -rc2.
Regards,
Anthony Liguori
prev parent reply other threads:[~2009-12-08 22:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-08 13:50 [Qemu-devel] [PATCH] fix rtc-td-hack on host without high-res timers Gleb Natapov
2009-12-08 22:12 ` Anthony Liguori [this message]
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