Re: [Xen-devel] ARM64 EFI runtime

[Brijesh Singh <brijeshkumar.singh@xxxxxxx>]

Thanks for update Stefano,

If you have some sample code on private git then please point me at it. I 
should be able to help on both development and testing on Seattle  platform. 

-Brijesh

On 10/13/2015 04:57 AM, Stefano Stabellini wrote:
> Hi Brijesh,
> 
> EFI runtime services are not currently exported to Dom0. They are still
> a work in progress.
> 
> Regards,
> 
> Stefano
> 
> On Mon, 12 Oct 2015, Brijesh Singh wrote:
>> Hi All,
>>
>> I noticed that DOM0 kernel fails to get time via RTC device on AMD ARM64 
>> (Seattle) platform. On this platform Linux uses rtc-efi driver to get the 
>> time through EFI runtime services, and I know for sure that driver works 
>> well outside the Xen environment. It seems that devicetree passed to DOM0 
>> through Xen does not contain UEFI system table information hence DOM0 fails 
>> to probe rtc-efi platform driver. I see the below message in DOM0 dmesg log
>>
>> [    0.000000] bootconsole [uart0] enabled
>> [    0.000000] efi: Getting EFI parameters from FDT:
>> [    0.000000] efi: UEFI not found.
>> [    0.000000] cma: Reserved 16 MiB at 0x00000083df000000
>>
>>
>> Looking at Xen's common/efi/runtime.c indicates that EFI runtime services 
>> are not yet supported on ARM platform, is anyone working on it? 
>>
>> Thanks
>> Brijesh
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@xxxxxxxxxxxxx
>> http://lists.xen.org/xen-devel
>>

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