Thomas Gleixner 1ca1b4e2c0 xen/events: Use immediate affinity setting ... There is absolutely no reason to mimic the x86 deferred affinity setting. This mechanism is required to handle the hardware induced issues of IO/APIC and MSI and is not in use when the interrupts are remapped. XEN does not need this and can simply change the affinity from the calling context. The core code invokes this with the interrupt descriptor lock held so it is fully serialized against any other operation. Mark the interrupts with IRQ_MOVE_PCNTXT to disable the deferred affinity setting. The conditional mask/unmask operation is already handled in xen_rebind_evtchn_to_cpu(). This makes XEN on x86 use the same mechanics as on e.g. ARM64 where deferred affinity setting is not required and not implemented and the code path in the ack functions is compiled out. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Juergen Gross <jgross@suse.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Link: https://lore.kernel.org/r/20201210194045.157601122@linutronix.de		2020-12-15 16:19:35 +01:00
..
events_2l.c	xen/events: make struct irq_info private to events_base.c	2020-10-23 05:41:25 -05:00
events_base.c	xen/events: Use immediate affinity setting	2020-12-15 16:19:35 +01:00
events_fifo.c	xen/events: unmask a fifo event channel only if it was masked	2020-10-23 05:41:25 -05:00
events_internal.h	xen/events: make struct irq_info private to events_base.c	2020-10-23 05:41:25 -05:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00