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android_kernel_google_msm/include/xen
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Stefano Stabellini 474d1f4678 xen: do not map the same GSI twice in PVHVM guests. 
commit 68c2c39a76 upstream.

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.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-01 15:18:25 +08:00
..
interface One tiny feature that accidentally got lost in the initial git pull: 2012-03-24 12:20:25 -07:00
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. 2012-06-01 15:18:25 +08:00
evtchn.h
features.h
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 xen/grant-table: Support mappings required by blkback 2011-12-20 17:07:27 -05:00
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
xenbus.h include/ and checkpatch: prefer __scanf to __attribute__((format(scanf,...) 2012-03-23 16:58:36 -07:00
xenbus_dev.h xen: Add xenbus_backend device 2011-12-16 13:29:41 -05:00
xencomm.h