On Wed, Sep 01, 2021 at 09:14:06PM +0000, Raghavendra Rao Ananta wrote:
> Add functions local_irq_enable() and local_irq_disable() to
> enable and disable the IRQs from the guest, respectively.
>
> Signed-off-by: Raghavendra Rao Ananta <rananta@xxxxxxxxxx>
Reviewed-by: Oliver Upton <oupton@xxxxxxxxxx>
> ---
> .../testing/selftests/kvm/include/aarch64/processor.h | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/tools/testing/selftests/kvm/include/aarch64/processor.h b/tools/testing/selftests/kvm/include/aarch64/processor.h
> index 78df059dc974..c35bb7b8e870 100644
> --- a/tools/testing/selftests/kvm/include/aarch64/processor.h
> +++ b/tools/testing/selftests/kvm/include/aarch64/processor.h
> @@ -241,4 +241,14 @@ static __always_inline u32 __raw_readl(const volatile void *addr)
> #define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c));})
> #define readl(c) ({ u32 __v = readl_relaxed(c); __iormb(__v); __v; })
>
> +static inline void local_irq_enable(void)
> +{
> + asm volatile("msr daifclr, #3" : : : "memory");
> +}
> +
> +static inline void local_irq_disable(void)
> +{
> + asm volatile("msr daifset, #3" : : : "memory");
> +}
> +
> #endif /* SELFTEST_KVM_PROCESSOR_H */
> --
> 2.33.0.153.gba50c8fa24-goog
>
