Re: [kvm-unit-tests PATCH v2 05/10] arm/arm64: irq enable/disable

Alex Bennée
2016-06-07T16:22:20Z

Andrew Jones <drjones@redhat.com> writes:

> Signed-off-by: Andrew Jones <drjones@redhat.com>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

> ---
> lib/arm/asm/processor.h | 10 ++++++++++
> lib/arm64/asm/processor.h | 10 ++++++++++
> 2 files changed, 20 insertions(+)
>
> diff --git a/lib/arm/asm/processor.h b/lib/arm/asm/processor.h
> index afc903ca7d4ab..75a8d08b89330 100644
> --- a/lib/arm/asm/processor.h
> +++ b/lib/arm/asm/processor.h
> @@ -35,6 +35,16 @@ static inline unsigned long current_cpsr(void)
>
> #define current_mode() (current_cpsr() & MODE_MASK)
>
> +static inline void local_irq_enable(void)
> +{
> + asm volatile("cpsie i" : : : "memory", "cc");
> +}
> +
> +static inline void local_irq_disable(void)
> +{
> + asm volatile("cpsid i" : : : "memory", "cc");
> +}
> +
> static inline unsigned int get_mpidr(void)
> {
> unsigned int mpidr;
> diff --git a/lib/arm64/asm/processor.h b/lib/arm64/asm/processor.h
> index 94f7ce35b65c1..d54a4ed1c1876 100644
> --- a/lib/arm64/asm/processor.h
> +++ b/lib/arm64/asm/processor.h
> @@ -68,6 +68,16 @@ static inline unsigned long current_level(void)
> return el & 0xc;
> }
>
> +static inline void local_irq_enable(void)
> +{
> + asm volatile("msr daifclr, #2" : : : "memory");
> +}
> +
> +static inline void local_irq_disable(void)
> +{
> + asm volatile("msr daifset, #2" : : : "memory");
> +}
> +
> #define DEFINE_GET_SYSREG(reg, type) \
> static inline type get_##reg(void) \
> { \

--
Alex Bennée