[PATCH 0/1] sbsa-ref: add non-secure EL2 virtual timer

[Marcin Juszkiewicz]

Armv8.1+ cpus have Virtual Host Extension (VHE) which added non-secure
EL2 virtual timer.

This change adds it to fullfil Arm BSA (Base System Architecture)
requirements.

>From firmware side information about timer needs to be present in GTDT
acpi table. If it is there with suggested interrupt 28 then BSA ACS test
266 passes:

--------------------------------------------------------------
 226 : Check NS EL2-Virt timer PPI Assignment         START

       Received vir el2 interrupt
       B_PPI_02
                                       : Result:  PASS
         END
--------------------------------------------------------------

On Armv8.0 cpus this timer should not exist as there is no VHE.

I hope this code is correct. Tried to compare with other emulation
targets but only "virt" and "sbsa-ref" use cpu cores newer than v8.0
ones.

Marcin Juszkiewicz (1):
  sbsa-ref: add non-secure EL2 virtual timer

 hw/arm/sbsa-ref.c | 2 ++
 1 file changed, 2 insertions(+)

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2.41.0