diff options
| author | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2015-11-20 11:25:04 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-09 14:31:26 -0500 |
| commit | e8d097151d309eb71f750bbf34e6a7ef6256da7e (patch) | |
| tree | 1fde559875f606908f40e94815c6abb492623018 /arch/arm/include/asm/irq.h | |
| parent | 06992dcaf2476456a66a0ab907b36c507161dedf (diff) | |
xen/events: Always allocate legacy interrupts on PV guests
commit b4ff8389ed14b849354b59ce9b360bdefcdbf99c upstream.
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>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 53c15dec7af6..6a9851ea6a60 100644 --- a/arch/arm/include/asm/irq.h +++ b/arch/arm/include/asm/irq.h @@ -35,6 +35,11 @@ extern void (*handle_arch_irq)(struct pt_regs *); extern void set_handle_irq(void (*handle_irq)(struct pt_regs *)); #endif +static inline int nr_legacy_irqs(void) +{ + return NR_IRQS_LEGACY; +} + #endif #endif |