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SubjectRe: [Xen-devel] HPET enabled in BIOS, not presented as available_clocksource -- config, kernel code, &/or BIOS?
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On 13/05/2017 20:28, Randy Dunlap wrote:
> On 05/13/17 11:26, PGNet Dev wrote:
>> On 5/13/17 10:41 AM, Randy Dunlap wrote:
>>> [adding HPET driver maintainer]
>> Thanks
>>
>>> A couple of comments below...
>>>> In BIOS, HPET's enabled.
>>> How about if you just boot Linux without Xen? Does HPET show up then?
>> yes, it appears so:
>>
>> cat devices/system/clocksource/clocksource0/available
>> tsc hpet acpi_pm
> Adding xen mailing list:
>
> Is HPET support a known issue in Xen?

What is the issue here?

Xen owns (and may use) any HPETs in the system. They are purposefully
unavailable to even dom0.

~Andrew

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