Ross Lagerwall cd65988121 xen/gntdev: Fix partial gntdev_mmap() cleanup ...

[ Upstream commit cf2acf66ad ]

When cleaning up after a partially successful gntdev_mmap(), unmap the
successfully mapped grant pages otherwise Xen will kill the domain if
in debug mode (Attempt to implicitly unmap a granted PTE) or Linux will
kill the process and emit "BUG: Bad page map in process" if Xen is in
release mode.

This is only needed when use_ptemod is true because gntdev_put_map()
will unmap grant pages itself when use_ptemod is false.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-03-03 10:24:37 +01:00

..

events

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

xen-pciback

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

xenbus

xenbus: track caller request id

2018-02-22 15:42:28 +01:00

xenfs

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

acpi.c

xen: rename dom0_op to platform_op

2015-12-21 14:40:55 +00:00

arm-device.c

Xen: ARM: Zero reserved fields of xatp before making hypervisor call

2017-01-03 10:06:13 -08:00

balloon.c

xen/balloon: Mark unallocated host memory as UNUSABLE

2018-03-03 10:24:28 +01:00

biomerge.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

cpu_hotplug.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

dbgp.c

…

efi.c

xen: Implement EFI reset_system callback

2017-05-02 12:06:50 +02:00

evtchn.c

xen-evtchn: Bind dyn evtchn:qemu-dm interrupt to next online VCPU

2017-06-13 15:30:27 +02:00

fallback.c

…

features.c

xen: audit usages of module.h ; remove unnecessary instances

2016-03-21 15:13:32 +00:00

gntalloc.c

mm: treewide: remove GFP_TEMPORARY allocation flag

2017-09-13 18:53:16 -07:00

gntdev.c

xen/gntdev: Fix partial gntdev_mmap() cleanup

2018-03-03 10:24:37 +01:00

grant-table.c

xen/grant-table: log the lack of grants

2017-07-23 08:09:43 +02:00

Kconfig

xen: XEN_ACPI_PROCESSOR is Dom0-only

2018-02-25 11:08:03 +01:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

manage.c

Merge tag 'for-linus-4.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

2017-07-06 19:11:24 -07:00

mcelog.c

x86/MCE, xen/mcelog: Make /dev/mcelog registration messages more precise

2017-06-20 23:25:19 +02:00

pci.c

xen/pci: Try harder to get PXM information for Xen

2015-04-15 10:57:28 +01:00

pcpu.c

xen: rename dom0_op to platform_op

2015-12-21 14:40:55 +00:00

platform-pci.c

xen-platform: constify pci_device_id.

2017-08-31 09:45:55 -04:00

preempt.c

xen/preempt: use need_resched() instead of should_resched()

2015-08-20 12:24:14 +01:00

privcmd.c

xen/privcmd: Support correctly 64KB page granularity when mapping memory

2017-06-07 11:23:14 +02:00

privcmd.h

…

pvcalls-back.c

xen/pvcalls: use WARN_ON(1) instead of __WARN()

2017-08-31 09:45:55 -04:00

swiotlb-xen.c

xen-swiotlb: remove xen_swiotlb_set_dma_mask

2017-06-28 06:54:50 -07:00

sys-hypervisor.c

xen: add sysfs node for hypervisor build id

2017-06-15 08:50:37 +02:00

time.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

tmem.c

mm, swap, frontswap: fix THP swap if frontswap enabled

2018-02-28 10:19:41 +01:00

xen-acpi-cpuhotplug.c

xen: rename dom0_op to platform_op

2015-12-21 14:40:55 +00:00

xen-acpi-memhotplug.c

ACPICA: Resources: Provide common part for struct acpi_resource_address structures.

2015-01-26 16:09:56 +01:00

xen-acpi-pad.c

xen: rename dom0_op to platform_op

2015-12-21 14:40:55 +00:00

xen-acpi-processor.c

xen/acpi: upload PM state from init-domain to Xen

2017-03-23 12:00:02 -04:00

xen-balloon.c

xen: fix booting ballooned down hvm guest

2017-10-26 08:11:44 -04:00

xen-scsiback.c

xen/scsiback: Make TMF processing slightly faster

2017-07-06 22:58:03 -07:00

xen-selfballoon.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

xen-stub.c

…

xlate_mmu.c

Xen: xlate: Use page_to_xen_pfn instead of page_to_pfn

2016-07-06 10:34:42 +01:00