Stefano Stabellini 68c2c39a76 xen: do not map the same GSI twice in PVHVM guests. ...

PV on HVM guests map GSIs into event channels. At restore time the
event channels are resumed by restore_pirqs.

Device drivers might try to register the same GSI again through ACPI at
restore time, but the GSI has already been mapped and bound by
restore_pirqs. This patch detects these situations and avoids
 mapping the same GSI multiple times.

Without this patch we get:
(XEN) irq.c:2235: dom4: pirq 23 or emuirq 28 already mapped
and waste a pirq.

CC: stable@kernel.org
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

2012-05-21 14:11:36 -04:00

..

interface

One tiny feature that accidentally got lost in the initial git pull:

2012-03-24 12:20:25 -07:00

acpi.h

xen/acpi/sleep: Enable ACPI sleep via the __acpi_os_prepare_sleep

2012-05-07 15:33:18 -04:00

balloon.h

xen-balloon: convert sysdev_class to a regular subsystem

2011-12-14 15:32:50 -08:00

events.h

xen: do not map the same GSI twice in PVHVM guests.

2012-05-21 14:11:36 -04:00

evtchn.h

xen: add /dev/xen/evtchn driver

2009-03-30 09:26:49 -07:00

features.h

xen: Core Xen implementation

2007-07-18 08:47:42 -07:00

gntalloc.h

xen/gntalloc,gntdev: Add unmap notify ioctl

2011-02-14 14:16:17 -05:00

gntdev.h

xen/gntalloc,gntdev: Add unmap notify ioctl

2011-02-14 14:16:17 -05:00

grant_table.h

xenbus: Add support for xenbus backend in stub domain

2012-05-21 09:53:18 -04:00

hvc-console.h

treewide: use __printf not __attribute__((format(printf,...)))

2011-10-31 17:30:54 -07:00

hvm.h

x86/xen: event channels delivery on HVM.

2010-07-22 16:45:59 -07:00

Kbuild

xen: add privcmd driver

2010-10-20 16:22:29 -07:00

page.h

xen: allow balloon driver to use more than one memory region

2011-09-29 11:12:10 -04:00

platform_pci.h

xen: Remove hanging references to CONFIG_XEN_PLATFORM_PCI

2011-11-16 12:13:42 -05:00

privcmd.h

xen: fix header export to userspace

2010-11-16 10:57:05 -08:00

swiotlb-xen.h

X86 & IA64: adapt for dma_map_ops changes

2012-03-28 16:36:31 +02:00

tmem.h

xen/tmem: cleanup

2012-03-20 15:34:18 -04:00

xen-ops.h

Disintegrate asm/system.h for IA64

2012-03-28 18:30:02 +01:00

xen.h

xen: move Xen-testing predicates to common header

2009-11-04 08:47:24 -08:00

xenbus_dev.h

xenbus: Add support for xenbus backend in stub domain

2012-05-21 09:53:18 -04:00

xenbus.h

include/ and checkpatch: prefer __scanf to __attribute__((format(scanf,...)

2012-03-23 16:58:36 -07:00

xencomm.h

xen: import arch generic part of xencomm

2008-04-24 23:57:32 +02:00