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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-17 01:34:00 +08:00
linux-next/drivers/xen
Stefano Stabellini 7e186bdd00 xen: do not clear and mask evtchns in __xen_evtchn_do_upcall
Change the irq handler of evtchns and pirqs that don't need EOI (pirqs
that correspond to physical edge interrupts) to handle_edge_irq.

Use handle_fasteoi_irq for pirqs that need eoi (they generally
correspond to level triggered irqs), no risk in loosing interrupts
because we have to EOI the irq anyway.

This change has the following benefits:

- it uses the very same handlers that Linux would use on native for the
same irqs (handle_edge_irq for edge irqs and msis, and
handle_fasteoi_irq for everything else);

- it uses these handlers in the same way native code would use them: it
let Linux mask\unmask and ack the irq when Linux want to mask\unmask
and ack the irq;

- it fixes a problem occurring when a driver calls disable_irq() in its
handler: the old code was unconditionally unmasking the evtchn even if
the irq is disabled when irq_eoi was called.

See Documentation/DocBook/genericirq.tmpl for more informations.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
[v1: Fixed space/tab issues]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-05-10 12:47:40 -04:00
..
xenbus xen: use freeze/restore/thaw PM events for suspend/resume/chkpt 2011-03-16 13:42:56 -04:00
xenfs Merge branch 'xen/xenbus' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2011-01-20 16:37:28 -08:00
balloon.c Merge branches 'stable/hvc-console', 'stable/gntalloc.v6' and 'stable/balloon' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2011-03-17 18:16:36 -07:00
biomerge.c xen: define BIOVEC_PHYS_MERGEABLE() 2010-10-18 10:40:28 -04:00
cpu_hotplug.c Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-12-11 12:18:16 -08:00
events.c xen: do not clear and mask evtchns in __xen_evtchn_do_upcall 2011-05-10 12:47:40 -04:00
evtchn.c Merge branch 'xen/dev-evtchn' into upstream/evtchn 2010-11-18 22:43:38 -08:00
features.c xen: clean up asm/xen/hypervisor.h 2008-12-16 21:50:31 +01:00
gntalloc.c xen/gntalloc,gntdev: Add unmap notify ioctl 2011-02-14 14:16:17 -05:00
gntdev.c xen-gntdev: unlock on error path in gntdev_mmap() 2011-03-24 10:32:45 -04:00
grant-table.c xen/p2m/m2p/gnttab: do not add failed grant maps to m2p override 2011-03-09 19:59:10 -05:00
Kconfig xen: change xen/[gntdev/gntalloc] to default m 2011-02-16 09:30:02 -05:00
Makefile xen-balloon: Move core balloon functionality out of module 2011-03-16 10:05:34 -04:00
manage.c PM: Add missing syscore_suspend() and syscore_resume() calls 2011-04-20 00:36:11 +02:00
pci.c xen: register xen pci notifier 2010-10-27 18:56:07 +01:00
platform-pci.c xen: no need to delay xen_setup_shutdown_event for hvm guests anymore 2011-02-25 16:43:03 +00:00
swiotlb-xen.c swiotlb-xen: SWIOTLB library for Xen PV guest with PCI passthrough. 2010-07-27 11:51:00 -04:00
sys-hypervisor.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
xen-balloon.c xen-balloon: Move core balloon functionality out of module 2011-03-16 10:05:34 -04:00
xencomm.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00