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| author | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2015-11-20 19:25:04 +0300 |
|---|---|---|
| committer | David Vrabel <david.vrabel@citrix.com> | 2015-11-26 21:05:01 +0300 |
| commit | b4ff8389ed14b849354b59ce9b360bdefcdbf99c (patch) | |
| tree | 8681308ba00216a51ec518fe6966d1a789ba9d44 /arch/arm/include/asm/irq.h | |
| parent | 9c17d96500f78d7ecdb71ca6942830158bc75a2b (diff) | |
| download | linux-b4ff8389ed14b849354b59ce9b360bdefcdbf99c.tar.xz | |
xen/events: Always allocate legacy interrupts on PV guests
After commit 8c058b0b9c34 ("x86/irq: Probe for PIC presence before
allocating descs for legacy IRQs") early_irq_init() will no longer
preallocate descriptors for legacy interrupts if PIC does not
exist, which is the case for Xen PV guests.
Therefore we may need to allocate those descriptors ourselves.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'arch/arm/include/asm/irq.h')
| -rw-r--r-- | arch/arm/include/asm/irq.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h index be1d07d59ee9..1bd9510de1b9 100644 --- a/arch/arm/include/asm/irq.h +++ b/arch/arm/include/asm/irq.h @@ -40,6 +40,11 @@ extern void arch_trigger_all_cpu_backtrace(bool); #define arch_trigger_all_cpu_backtrace(x) arch_trigger_all_cpu_backtrace(x) #endif +static inline int nr_legacy_irqs(void) +{ + return NR_IRQS_LEGACY; +} + #endif #endif |