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

[Peter Maydell]

On Wed, 13 Sept 2023 at 15:06, Marcin Juszkiewicz
<marcin.juszkiewicz@linaro.org> wrote:
>
> 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.
>
> Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
>
> ---
>  hw/arm/sbsa-ref.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
> index bc89eb4806..3c7dfcd6dc 100644
> --- a/hw/arm/sbsa-ref.c
> +++ b/hw/arm/sbsa-ref.c
> @@ -61,6 +61,7 @@
>  #define ARCH_TIMER_S_EL1_IRQ   13
>  #define ARCH_TIMER_NS_EL1_IRQ  14
>  #define ARCH_TIMER_NS_EL2_IRQ  10
> +#define ARCH_TIMER_NS_EL2_VIRT_IRQ  12
>
>  enum {
>      SBSA_FLASH,
> @@ -489,6 +490,7 @@ static void create_gic(SBSAMachineState *sms, 
> MemoryRegion *mem)
>              [GTIMER_VIRT] = ARCH_TIMER_VIRT_IRQ,
>              [GTIMER_HYP]  = ARCH_TIMER_NS_EL2_IRQ,
>              [GTIMER_SEC]  = ARCH_TIMER_S_EL1_IRQ,
> +            [GTIMER_HYPVIRT] = ARCH_TIMER_NS_EL2_VIRT_IRQ,
>          };
>
>          for (irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) {
> --

This is correct, so I've applied it to target-arm.next. We also
need something similar for the virt board (where there is an
additional complication that we need to also report it in the dtb
and the ACPI tables, ideally only if the CPU has the feature).

thanks
-- PMM