Hi Peter,

On 06/10/2014 10:42 AM, Peter Maydell wrote:

On 28 March 2014 18:45, Christoffer Dall [off-list ref] wrote:

quoted

ARM VM System Specification
===========================

quoted

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?

Thanks,
Christopher

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