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Dominik Dingel a3a92c31bf KVM: s390: fix mismatch between user and in-kernel guest limit 
While the userspace interface requests the maximum size the gmap code
expects to get a maximum address.

This error resulted in bigger page tables than necessary for some guest
sizes, e.g. a 2GB guest used 3 levels instead of 2.

At the same time we introduce KVM_S390_NO_MEM_LIMIT, which allows in a
bright future that a guest spans the complete 64 bit address space.

We also switch to TASK_MAX_SIZE for the initial memory size, this is a
cosmetic change as the previous size also resulted in a 4 level pagetable
creation.

Reported-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2015-12-15 17:08:21 +01:00
..
ABI
SCSI misc on 20151113
2015-11-13 20:35:54 -08:00
accounting
…
acpi
mfd: core: redo ACPI matching of the children devices
2015-10-26 15:25:53 +01:00
aoe
…
arm
ARM: SoC platform updates for v4.4
2015-11-10 14:56:23 -08:00
arm64
arm64 updates for 4.4:
2015-11-04 14:47:13 -08:00
auxdisplay
…
backlight
…
blackfin
Docs: blackfin: Use new switch macro SAMPLE_IRQ_TIMER instead of IRQ_TIMER5
2015-05-07 09:35:14 -06:00
block
block: add an API for Persistent Reservations
2015-10-21 14:46:56 -06:00
blockdev
zram: update documentation
2015-09-24 15:39:42 -06:00
bus-devices
…
cdrom
…
cgroups
There is a nice new document from Neil on how pathname lookups work and
2015-11-05 15:59:24 -08:00
cma
cma: debug: document new debugfs interface
2015-04-14 16:49:00 -07:00
connector
…
console
…
cpu-freq
cpufreq: remove redundant CPUFREQ_INCOMPATIBLE notifier event
2015-09-01 15:50:38 +02:00
cpuidle
…
cris
…
crypto
KEYS: Merge the type-specific data with the payload data
2015-10-21 15:18:36 +01:00
development-process
…
device-mapper
- Revert a dm-multipath change that caused a regression for unprivledged
2015-11-04 21:19:53 -08:00
devicetree
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2015-11-15 09:10:53 -08:00
dmaengine
Documentation: dmaengine: Add DMA_CTRL_REUSE documentation
2015-08-17 13:46:22 +05:30
DocBook
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
2015-11-10 09:33:06 -08:00
driver-model
driver-core: platform: Provide helpers for multi-driver modules
2015-10-05 05:02:40 +01:00
dvb
…
early-userspace
…
EDID
…
extcon
…
fault-injection
futex: Fault/error injection capabilities
2015-07-20 11:45:45 +02:00
fb
Documentation/fb: add documentation for sm712fb
2015-08-07 15:05:01 -07:00
features
arm64 updates for 4.4:
2015-11-04 14:47:13 -08:00
filesystems
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2015-11-13 20:04:17 -08:00
firmware_class
…
fmc
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fpga
usage documentation for FPGA manager core
2015-10-07 18:07:20 +01:00
frv
…
gpio
There is a nice new document from Neil on how pathname lookups work and
2015-11-05 15:59:24 -08:00
hid
HID: sensor: Update document for custom sensor
2015-04-10 22:22:56 +02:00
hwmon
ARM: SoC driver updates for v4.4
2015-11-10 15:00:03 -08:00
i2c
i2c: i801: add Intel Lewisburg device IDs
2015-11-20 16:22:21 +01:00
ia64
virtual: Documentation: simplify and generalize paravirt_ops.txt
2015-02-13 17:15:44 +10:30
ide
…
infiniband
IB/hfi1: add driver files
2015-08-28 22:59:36 -04:00
input
Input: add userio module
2015-10-27 18:55:31 -07:00
ioctl
char/misc drivers for 4.4-rc1
2015-11-04 22:15:15 -08:00
isdn
…
ja_JP
Doc: ja_JP: Fix typo in HOWTO
2015-06-08 16:43:09 -06:00
kbuild
kbuild: document recursive dependency limitation / resolution
2015-10-08 15:36:16 +02:00
kdump
…
ko_KR
…
laptops
Move freefall program from Documentation/ to tools/
2015-06-08 16:42:07 -06:00
leds
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
2015-07-01 19:09:11 -07:00
locking
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-11-03 16:10:43 -08:00
m68k
…
memory-devices
…
metag
…
mic
misc: mic: Update MIC host daemon with COSM changes
2015-10-04 12:54:54 +01:00
mips
…
misc-devices
Doc:misc-devices: Fix typo in Documentation/misc-devices
2015-09-18 10:04:24 -06:00
mmc
mmc: core: Remove MMC_CLKGATE
2015-10-26 16:00:09 +01:00
mn10300
…
mtd
…
namespaces
…
netlabel
…
networking
A few more documentation patches that wandered in and have no reason to
2015-11-13 09:19:05 -08:00
nfc
NFC: Fix typo in nfc-hci.txt
2015-06-08 23:15:45 +02:00
nios2
…
nvdimm
libnvdimm: documentation clarifications
2015-11-12 09:55:23 -08:00
nvmem
Documentation: nvmem: add nvmem api level and how-to doc
2015-08-05 13:43:45 -07:00
parisc
…
PCI
The documentation tree update for 4.1. Numerous fixes, the overdue removal
2015-04-18 11:10:49 -04:00
pcmcia
pcmcia: Fix typo in locking documentation
2015-08-07 14:34:58 +02:00
phy
…
platform
…
power
PCI / PM: Update runtime PM documentation for PCI devices
2015-09-25 02:48:44 +02:00
powerpc
SCSI misc on 20150901
2015-09-02 12:22:54 -07:00
pps
Doc: pps: Fix file name in pps.txt
2015-07-14 12:35:42 -06:00
prctl
Documentation/prctl: don't build tsc tests when cross compiling
2015-06-22 16:05:04 -06:00
pti
…
ptp
testptp: Silence compiler warnings on ppc64
2015-09-29 21:16:56 -07:00
rapidio
…
RCU
Merge branches 'doc.2015.10.06a', 'percpu-rwsem.2015.10.06a' and 'torture.2015.10.06a' into HEAD
2015-10-07 16:06:25 -07:00
s390
KVM: s390: remove outdated documentation
2015-07-29 11:02:35 +02:00
scheduler
sched/dl/Documentation: Split Section 3
2015-05-19 08:39:21 +02:00
scsi
st: allow debug output to be enabled or disabled via sysfs
2015-11-09 17:17:27 -08:00
security
KEYS: Merge the type-specific data with the payload data
2015-10-21 15:18:36 +01:00
serial
Documentation: improve line discipline method descriptions
2015-10-05 04:53:26 +01:00
sh
…
sound
ALSA: hda - Remove obsoleted documentation
2015-10-17 18:34:24 +02:00
spi
ARM: pxa: Remove unused clock_enable field from struct pxa2xx_spi_master
2015-09-20 19:37:20 +02:00
sysctl
Documentation/sysctl/vm.txt: fix misleading code reference of overcommit_memory
2015-11-09 15:11:24 -08:00
target
target: use per-attribute show and store methods
2015-10-13 22:17:49 -07:00
thermal
thermal: power_allocator: relax the requirement of two passive trip points
2015-09-14 07:41:45 -07:00
timers
documentation: Update NO_HZ_FULL interaction with POSIX timers
2015-02-26 11:57:29 -08:00
tpm
…
trace
Most of the changes are clean ups and small fixes. Some of them have
2015-11-06 13:30:20 -08:00
usb
usb: interface authorization: Documentation part
2015-09-22 12:08:40 -07:00
vDSO
Documentation/vDSO: don't build tests when cross compiling
2015-06-22 16:04:57 -06:00
video4linux
[media] media: videobuf2: Change queue_setup argument
2015-10-20 14:48:39 -02:00
virtual
KVM: s390: fix mismatch between user and in-kernel guest limit
2015-12-15 17:08:21 +01:00
vm
mm: make compound_head() robust
2015-11-06 17:50:42 -08:00
w1
w1: masters: omap_hdq: add support for 1-wire mode
2015-10-05 04:47:09 +01:00
watchdog
Documentation/watchdog: add timeout and ping rate control to watchdog-test.c
2015-09-09 21:33:36 +02:00
wimax
…
x86
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-09-01 10:07:40 -07:00
xtensa
…
zh_CN
sysfs.txt: fix pre-kernfs sysfs_dirent reference
2015-09-13 14:38:50 -06:00
00-INDEX
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adding-syscalls.txt
Documentation: describe how to add a system call
2015-08-13 17:54:06 -06:00
applying-patches.txt
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assoc_array.txt
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atomic_ops.txt
locking/atomics, cmpxchg: Privatize the inclusion of asm/cmpxchg.h
2015-09-13 10:35:46 +02:00
bad_memory.txt
…
basic_profiling.txt
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bcache.txt
…
binfmt_misc.txt
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braille-console.txt
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bt8xxgpio.txt
…
btmrvl.txt
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BUG-HUNTING
…
bus-virt-phys-mapping.txt
…
cachetlb.txt
rmap: drop support of non-linear mappings
2015-02-10 14:30:31 -08:00
Changes
There is a nice new document from Neil on how pathname lookups work and
2015-11-05 15:59:24 -08:00
circular-buffers.txt
…
clk.txt
clk: change clk_ops' ->determine_rate() prototype
2015-07-27 18:12:01 -07:00
coccinelle.txt
…
CodeOfConflict
Code of Conflict
2015-02-27 11:44:24 -08:00
CodingStyle
Documentation: CodingStyle: remove broken links in the References section
2015-07-10 13:54:34 -06:00
cpu-hotplug.txt
cpumask: fix cpu-hotplug documentation
2015-03-05 13:37:01 +10:30
cpu-load.txt
…
cputopology.txt
Documentation: Update cputopology.txt
2015-05-27 15:22:15 +02:00
crc32.txt
…
dcdbas.txt
…
debugging-modules.txt
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debugging-via-ohci1394.txt
Doc: Change wikipedia's URL from http to https
2015-06-22 10:14:05 -06:00
dell_rbu.txt
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devices.txt
…
digsig.txt
…
DMA-API-HOWTO.txt
Documentation: DMA API: Be more explicit that nents is always the same
2015-09-24 15:50:06 -06:00
DMA-API.txt
dma: remove external references to dma_supported
2015-11-09 15:11:24 -08:00
DMA-attributes.txt
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dma-buf-sharing.txt
dma-buf: cleanup dma_buf_export() to make it easily extensible
2015-04-21 14:47:16 +05:30
DMA-ISA-LPC.txt
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dontdiff
Documentation: dontdiff: remove media from dontdiff
2015-11-11 10:08:07 -07:00
dynamic-debug-howto.txt
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edac.txt
Documentation/EDAC: Add reference documents section for amd64_edac
2015-09-29 13:42:41 +02:00
efi-stub.txt
…
eisa.txt
…
email-clients.txt
A few more documentation patches that wandered in and have no reason to
2015-11-13 09:19:05 -08:00
flexible-arrays.txt
…
futex-requeue-pi.txt
…
gcov.txt
…
gdb-kernel-debugging.txt
scripts/gdb: add basic documentation
2015-02-17 14:34:54 -08:00
highuid.txt
…
HOWTO
docs: update HOWTO for 3.x -> 4.x versioning
2015-08-24 11:28:17 -06:00
hsi.txt
…
hw_random.txt
hwrng: doc - Fix device node name reference /dev/hw_random => /dev/hwrng
2015-09-21 22:00:41 +08:00
hwspinlock.txt
hwspinlock/core: add device tree support
2015-05-02 09:54:30 +03:00
init.txt
…
initrd.txt
…
intel_txt.txt
…
Intel-IOMMU.txt
x86/vt-d: Fix documentation of DRHD
2015-08-25 10:44:49 +02:00
io_ordering.txt
…
io-mapping.txt
…
iostats.txt
…
IPMI.txt
ipmi watchdog : add panic_wdt_timeout parameter
2015-11-16 06:28:43 -06:00
IRQ-affinity.txt
…
IRQ-domain.txt
irqdomain: Documentation updates
2015-10-13 19:01:25 +02:00
IRQ.txt
…
irqflags-tracing.txt
…
isapnp.txt
…
java.txt
…
kasan.txt
mm, slub, kasan: enable user tracking by default with KASAN=y
2015-11-05 19:34:48 -08:00
kernel-doc-nano-HOWTO.txt
Documenation: Update location of docproc.c
2015-07-14 12:36:39 -06:00
kernel-docs.txt
kernel-docs.txt: update kernelnewbies reference
2015-10-11 15:36:43 -06:00
kernel-parameters.txt
Merge branches 'pm-cpufreq' and 'acpi-cppc'
2015-11-20 01:22:10 +01:00
kernel-per-CPU-kthreads.txt
documentation: Update per-CPU kthreads documentation
2015-02-26 11:57:30 -08:00
kmemcheck.txt
Documentation: update the CONFIG_DEBUG_PAGEALLOC description
2015-03-20 07:41:55 -06:00
kmemleak.txt
Doc: Change wikipedia's URL from http to https
2015-06-22 10:14:05 -06:00
kobject.txt
…
kprobes.txt
kprobes: Update Documentation/kprobes.txt
2015-03-20 07:41:55 -06:00
kref.txt
…
kselftest.txt
Documentation: Update kselftest.txt
2015-09-24 15:51:53 -06:00
ldm.txt
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local_ops.txt
…
lockup-watchdogs.txt
kernel/watchdog.c: add sysctl knob hardlockup_panic
2015-11-05 19:34:48 -08:00
logo.gif
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logo.txt
…
lzo.txt
…
magic-number.txt
Documentation/magic-number: Remove SCC_MAGIC
2015-05-13 15:39:04 -04:00
mailbox.txt
Documentation: minor typo fix in mailbox.txt
2015-08-13 18:03:18 -06:00
Makefile
Documentation: Remove ZBOOT MMC/SDHI utility and docs
2015-02-24 06:45:25 +09:00
ManagementStyle
…
md-cluster.txt
md-cluster: fix deadlock issue on message lock
2015-08-31 19:41:41 +02:00
md.txt
doc:md: fix typo in md.txt.
2015-06-23 06:49:44 -06:00
media-framework.txt
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memory-barriers.txt
atomic: remove all traces of READ_ONCE_CTRL() and atomic*_read_ctrl()
2015-11-03 17:22:17 -08:00
memory-hotplug.txt
mem-hotplug: fix typo in Documentation/memory-hotplug.txt
2015-03-20 07:41:55 -06:00
men-chameleon-bus.txt
Documentation: Minor changes to men-chameleon-bus.txt
2015-07-24 15:15:17 +02:00
module-signing.txt
Move certificate handling to its own directory
2015-08-14 16:06:13 +01:00
mono.txt
…
nommu-mmap.txt
…
ntb.txt
NTB: Rename Intel code names to platform names
2015-07-04 14:09:25 -04:00
numastat.txt
…
oops-tracing.txt
…
padata.txt
…
parport-lowlevel.txt
…
parport.txt
…
percpu-rw-semaphore.txt
…
phy.txt
phy: core: Add devm_of_phy_get_by_index to phy-core
2015-05-11 21:42:23 +05:30
pi-futex.txt
…
pinctrl.txt
pinctrl: move strict option to pinmux_ops
2015-05-06 14:45:19 +02:00
pnp.txt
…
preempt-locking.txt
x86/fpu: Rename math_state_restore() to fpu__restore()
2015-05-19 15:47:18 +02:00
printk-formats.txt
lib/vsprintf.c: update documentation
2015-11-06 17:50:42 -08:00
pwm.txt
…
ramoops.txt
…
rbtree.txt
documentation: fix small typo in rbtree.txt
2015-09-13 14:38:50 -06:00
remoteproc.txt
remoteproc: introduce rproc_get_by_phandle API
2015-06-16 21:12:52 +03:00
rfkill.txt
…
robust-futex-ABI.txt
…
robust-futexes.txt
…
rpmsg.txt
…
rtc.txt
Documentation, split up rtc.txt into documentation and test file
2015-03-24 22:01:58 -06:00
SAK.txt
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SecurityBugs
…
serial-console.txt
…
sgi-ioc4.txt
…
SM501.txt
…
smsc_ece1099.txt
…
sparse.txt
…
stable_api_nonsense.txt
…
stable_kernel_rules.txt
stable: Update documentation to clarify preferred procedure
2015-05-22 09:38:56 -06:00
static-keys.txt
locking/static_keys: Fix up the static keys documentation
2015-09-15 07:12:06 +02:00
SubmitChecklist
…
SubmittingDrivers
…
SubmittingPatches
A few more documentation patches that wandered in and have no reason to
2015-11-13 09:19:05 -08:00
svga.txt
…
sysfs-rules.txt
…
sysrq.txt
mm, oom: do not panic for oom kills triggered from sysrq
2015-09-08 15:35:28 -07:00
this_cpu_ops.txt
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unaligned-memory-access.txt
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unicode.txt
…
unshare.txt
…
vfio.txt
vfio: powerpc/spapr: Support Dynamic DMA windows
2015-06-11 15:16:55 +10:00
VGA-softcursor.txt
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vgaarbiter.txt
…
video-output.txt
…
vme_api.txt
Documentation: mention vme_master_mmap() in VME API
2015-06-12 17:26:56 -07:00
volatile-considered-harmful.txt
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workqueue.txt
workqueue: fix trivial typo in Documentation/workqueue.txt
2015-05-05 09:50:38 -04:00
xillybus.txt
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xz.txt
…
zorro.txt
…