Hi Thomas,
On 25/08/15 16:46, Thomas Gleixner wrote:
> On Tue, 25 Aug 2015, Marc Zyngier wrote:
>> +static struct static_key supports_deactivate = STATIC_KEY_INIT_TRUE;
>> +
>> #ifndef MAX_GIC_NR
>> #define MAX_GIC_NR 1
>> #endif
>> @@ -137,6 +140,14 @@ static inline unsigned int gic_irq(struc
On Tue, 25 Aug 2015, Marc Zyngier wrote:
> +static struct static_key supports_deactivate = STATIC_KEY_INIT_TRUE;
> +
> #ifndef MAX_GIC_NR
> #define MAX_GIC_NR 1
> #endif
> @@ -137,6 +140,14 @@ static inline unsigned int gic_irq(struct irq_data *d)
> return d->hwirq;
> }
>
> +static in
So far, GICv2 has been used with EOImode == 0. The effect of this
mode is to perform the priority drop and the deactivation of the
interrupt at the same time.
While this works perfectly for Linux (we only have a single priority),
it causes issues when an interrupt is forwarded to a guest, and when
