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Re: [Qemu-devel] [PATCH] fix rtc-td-hack on host without high-res timers


From: Anthony Liguori
Subject: Re: [Qemu-devel] [PATCH] fix rtc-td-hack on host without high-res timers
Date: Tue, 08 Dec 2009 16:12:28 -0600
User-agent: Thunderbird 2.0.0.23 (X11/20090825)

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 <address@hidden>

Looks good.  I'll commit this for -rc2.

Regards,

Anthony Liguori




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