[SeaBIOS] [PATCH] tsc: use kvmclock for calibration
Fred .
eldmannen at gmail.com
Mon Aug 13 14:55:49 CEST 2012
Add a comment about it in the source code.
-#define PM_TIMER_FREQUENCY 3579545
+#define PM_TIMER_FREQUENCY 3579545 // 3.579545 MHz clock required by
ACPI spec.
On Mon, Aug 13, 2012 at 12:46 PM, Gleb Natapov <gleb at redhat.com> wrote:
> On Mon, Aug 13, 2012 at 12:37:11PM +0200, Gerd Hoffmann wrote:
>> Hi,
>>
>> > Isnt pmtimer ioport usable? 14MHz.
>>
>> Can give it a try. 14 MHz looks wrong though, apci.h says:
>>
>> /* PM Timer ticks per second (HZ) */
>> #define PM_TIMER_FREQUENCY 3579545
>>
>> Is this fixed? Or hardware specific?
>>
> 3.579545 MHz clock required by ACPI spec.
>
> --
> Gleb.
>
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