[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [RFC v2] ARM VM System Specification

Hi Peter,

On 06/10/2014 10:42 AM, Peter Maydell wrote:
> On 28 March 2014 18:45, Christoffer Dall <christoffer.dall@xxxxxxxxxx> wrote:
>> ARM VM System Specification
>> ===========================
>> The virtual hardware platform must provide a number of mandatory
>> peripherals:
>>   Serial console:  The platform should provide a console,
>>   based on an emulated pl011, a virtio-console, or a Xen PV console.
>>   An ARM Generic Interrupt Controller v2 (GICv2) [3] or newer.  GICv2
>>   limits the the number of virtual CPUs to 8 cores, newer GIC versions
>>   removes this limitation.
>>   The ARM virtual timer and counter should be available to the VM as
>>   per the ARM Generic Timers specification in the ARM ARM [1].
> I just noticed that this doesn't mandate that the platform
> provides an RTC. As I understand it, the UEFI spec mandates
> that there's an RTC (could somebody more familiar with UEFI
> than me confirm/deny that?) so we should probably put one here.

Pardon my ignorance, but what exactly disqualifies Generic Timer
implementations from being used as Real Time Clocks?


Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by the Linux Foundation.

Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.