* 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
  x86: KVM geust: make setup_secondary_clock definition dependent on local apic
  KVM: MMU: Allow more than PAGES_PER_HPAGE write protections per large page
  KVM: avoid fx_init() schedule in atomic
  KVM: Avoid spurious execeptions after setting registers
  KVM: PIT: support mode 4
  KVM: x86 emulator: disable writeback on lmsw
  KVM: ppc: deliver INTERRUPT_FP_UNAVAIL to the guest
  KVM: ppc: Handle guest idle by emulating MSR[WE] writes
  KVM: x86: task switch: fix wrong bit setting for the busy flag
  KVM: VMX: Enable EPT feature for KVM
  KVM: VMX: Prepare an identity page table for EPT in real mode
  KVM: Export necessary function for EPT
  KVM: MMU: Remove #ifdef CONFIG_X86_64 to support 4 level EPT
  KVM: MMU: Add EPT support
  KVM: Add kvm_x86_ops get_tdp_level()
  KVM: MMU: Move some definitions to a header file
  KVM: VMX: EPT Feature Detection

x86.git testing found the following build failure on v2.6.26-rc1:

  In file included from include/linux/kobject.h:22,
                   from include/linux/module.h:17,
                   from include/linux/crypto.h:22,
                   from arch/x86/kernel/asm-offsets_32.c:8,
                   from arch/x86/kernel/asm-offsets.c:3:
  include/linux/sysfs.h:201: error: redefinition of 'sysfs_update_group'
  include/linux/sysfs.h:195: error: previous definition of 'sysfs_update_group' was here
  make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1
  make: *** [prepare0] Error 2

with the following config:

    http://redhat.com/~mingo/misc/config-Sun_May__4_07_09_30_CEST_2008.bad

the reason for the build failure is the duplicate definition of the
sysfs_update_group() inline function in include/linux/sysfs.h.

The duplication was a merge error: it was added via -mm by commit
v2.6.25-7262-g2850699c, "sysfs: sysfs_update_group stub for
CONFIG_SYSFS=n" a day before v2.6.26-rc1, but a day before that the same
commit was already merged upstream via the sysfs tree, with commit
v2.6.25-7211-g1cbfb7a5.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The kernel module loader used to be much too happy to allow loading of
modules for the wrong kernel version by default.  For example, if you
had MODVERSIONS enabled, but tried to load a module with no version
info, it would happily load it and taint the kernel - whether it was
likely to actually work or not!

Generally, such forced module loading should be considered a really
really bad idea, so make it conditional on a new config option
(MODULE_FORCE_LOAD), and make it default to off.

If somebody really wants to force module loads, that's their problem,
but we should not encourage it.  Especially as it happened to me by
mistake (ie regular unversioned Fedora modules getting loaded) causing
lots of strange behavior.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Since the pv_apic_ops are only present if CONFIG_X86_LOCAL_APIC is compiled
in, kvmclock failed to build without this option.  This patch fixes this.
Signed-off-by: NGlauber Costa <gcosta@redhat.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

nonpae guests can call rmap_write_protect twice per page (for page tables)
or four times per page (for page directories), triggering a bogus warning.

Remove the warning.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

This make sure not to schedule in atomic during fx_init. I also
changed the name of fpu_init to fx_finit to avoid duplicating the name
with fpu_init that is already used in the kernel, this makes grep
simpler if nothing else.
Signed-off-by: NAndrea Arcangeli <andrea@qumranet.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Clear pending exceptions when setting new register values. This avoids
spurious exceptions after restoring a vcpu state or after
reset-on-triple-fault.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

The in-kernel PIT emulation ignores pending timers if operating under
mode 4, which for example DragonFlyBSD uses (and Plan9 too, apparently).

Mode 4 seems to be similar to one-shot mode, other than the fact that it
starts counting after the next CLK pulse once programmed, while mode 1
starts counting immediately, so add a FIXME to enhance precision.

Fixes sourceforge bug 1952988.
Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
Acked-by: NSheng Yang <sheng.yang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

The recent changes allowing memory operands with lmsw and smsw left
lmsw with writeback enabled.  Since lmsw has no oridinary destination
operand, the dst pointer was not initialized, resulting in an oops.

Close the hole by disabling writeback for lmsw.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

This patch adds the delivery of INTERRUPT_FP_UNAVAIL exceptions to the guest.
It's needed if a guest uses ppc binaries using the Floating point instructions.
Signed-off-by: NChristian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Acked-by: NHollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

This reduces host CPU usage when the guest is idle. However, the guest must
set MSR[WE] in its idle loop, which Linux did not do until 2.6.26.
Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: NJerone Young <jyoung5@us.ibm.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

The busy bit is bit 1 of the type field, not bit 8.
Signed-off-by: NIzik Eidus <izike@qumranet.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Signed-off-by: NSheng Yang <sheng.yang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

[aliguory: plug leak]
Signed-off-by: NSheng Yang <sheng.yang@intel.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Signed-off-by: NSheng Yang <sheng.yang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Currently EPT level is 4 for both pae and x86_64. The patch remove the #ifdef
for alloc root_hpa and free root_hpa to support EPT.
Signed-off-by: NSheng Yang <sheng.yang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Enable kvm_set_spte() to generate EPT entries.
Signed-off-by: NSheng Yang <sheng.yang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

The function get_tdp_level() provided the number of tdp level for EPT and
NPT rather than the NPT specific macro.
Signed-off-by: NSheng Yang <sheng.yang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Move some definitions to mmu.h in order to allow building common table
entries between EPT and non-EPT.
Signed-off-by: NSheng Yang <sheng.yang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Signed-off-by: NSheng Yang <sheng.yang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

* git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt:
  clocksource: allow read access to available/current_clocksource
  clocksource: Fix permissions for available_clocksource
  hrtimer: remove duplicate helper function

A very small cleanup for mq_open.

We do not have to call set_close_on_exit if we create the file
descriptor right away with the flag set.  We have a function for this
now.  The resulting code is smaller and a tiny bit faster.
Signed-off-by: NUlrich Drepper <drepper@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This replaces the duplicated arch-specific versions of "sys_pipe()" with
one unified implementation.  This removes almost 250 lines of duplicated
code.

It's marked __weak, so that *if* an architecture wants to override the
default implementation it can do so by simply having its own replacement
version, since many architectures use alternate calling conventions for
the 'pipe()' system call for legacy reasons (ie traditional UNIX
implementations often return the two file descriptors in registers)

I still haven't changed the cris version even though Linus says the BKL
isn't needed.  The arch maintainer can easily do it if there are really
no obstacles.
Signed-off-by: NUlrich Drepper <drepper@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* git://git.infradead.org/battery-2.6:
  PMU battery: filenames in sysfs with spaces
  pda_power: add init and exit function callbacks

* git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-inttypes: (24 commits)
  Make constants in kernel/timeconst.h fixed 64 bits
  types: add C99-style constructors to <asm-generic/int-*.h>
  xtensa: types: use <asm-generic/int-*.h> for the xtensa architecture
  x86: types: use <asm-generic/int-*.h> for the x86 architecture
  v850: types: use <asm-generic/int-*.h> for the v850 architecture
  sparc64: types: use <asm-generic/int-*.h> for the sparc64 architecture
  sparc: types: use <asm-generic/int-*.h> for the sparc architecture
  sh: types: use <asm-generic/int-*.h> for the sh architecture
  s390: types: use <asm-generic/int-*.h> for the s390 architecture
  powerpc: types: use <asm-generic/int-*.h> for the powerpc architecture
  parisc: types: use <asm-generic/int-*.h> for the parisc architecture
  mn10300: types: use <asm-generic/int-*.h> for the mn10300 architecture
  mips: types: use <asm-generic/int-*.h> for the mips architecture
  m68k: types: use <asm-generic/int-*.h> for the m68k architecture
  m32r: types: use <asm-generic/int-*.h> for the m32r architecture
  ia64: types: use <asm-generic/int-*.h> for the ia64 architecture
  h8300: types: use <asm-generic/int-*.h> for the h8300 architecture
  frv: types: use <asm-generic/int-*.h> for the frv architecture
  cris: types: use <asm-generic/int-*.h> for the cris architecture
  blackfin: types: use <asm-generic/int-*.h> for the blackfin architecture
  ...

Many thanks to Martin for his years of hosting.  The pci list has moved to
vger, along with what seems like the rest of the major Linux mailing lists.
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  slub: #ifdef simplification
  slabinfo: Support printout of the number of fallbacks
  slub: Whitespace cleanup and use of strict_strtoul

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits)
  rose: Wrong list_lock argument in rose_node seqops
  netns: Fix reassembly timer to use the right namespace
  netns: Fix device renaming for sysfs
  bnx2: Update version to 1.7.5.
  bnx2: Update RV2P firmware for 5709.
  bnx2: Zero out context memory for 5709.
  bnx2: Fix register test on 5709.
  bnx2: Fix remote PHY initial link state.
  bnx2: Refine remote PHY locking.
  bridge: forwarding table information for >256 devices
  tg3: Update version to 3.92
  tg3: Add link state reporting to UMP firmware
  tg3: Fix ethtool loopback test for 5761 BX devices
  tg3: Fix 5761 NVRAM sizes
  tg3: Use constant 500KHz MI clock on adapters with a CPMU
  hci_usb.h: fix hard-to-trigger race
  dccp: ccid2.c, ccid3.c use clamp(), clamp_t()
  net: remove NR_CPUS arrays in net/core/dev.c
  net: use get/put_unaligned_* helpers
  bluetooth: use get/put_unaligned_* helpers
  ...

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc32: Delete prom_stdin and prom_stdout.
  sparc32: More memory probing consolidation.
  sparc32: Kill totally unused memory information tables.
  sparc64: Fix syscall restart, for real...
  serial: Fix sparc driver name strings.
  sparc64: Stop creating dummy root PCI host controller devices.

* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Bolt in SLB entry for kernel stack on secondary cpus
  [POWERPC] PS3: Update ps3_defconfig
  [POWERPC] PS3: Remove unsupported wakeup sources
  [POWERPC] PS3: Make ps3_virq_setup and ps3_virq_destroy static
  [POWERPC] PS3: Add time include to lpm
  [POWERPC] Fix slb.c compile warnings
  [POWERPC] Xilinx: Fix compile warnings
  [POWERPC] Squash build warning for print of resource_size_t in fsl_soc.c
  [RAPIDIO] fix current kernel-doc notation
  [POWERPC] 86xx: mpc8610_hpcd: add support for PCI Express x8 slot
  Fix a potential issue in mpc52xx uart driver
  [POWERPC] mpc5200: Allow for fixed speed MII configurations
  [POWERPC] 86xx: Fix the wrong serial1 interrupt for 8610 board

There is no harm, when users can read the info and we ask often enough
during debugging for this kind of information.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: John Stultz <johnstul@us.ibm.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

File permissions for
/sys/devices/system/clocksource/clocksource0/available_clocksource
are 600 which allows write access. But this is in fact a read only
file. So change permissions to 400.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

The helper function hrtimer_callback_running() is used in
kernel/hrtimer.c as well as in the updated net/can/bcm.c which now
supports hrtimers. Moving the helper function to hrtimer.h removes the
duplicate definition in the C-files.
Signed-off-by: NOliver Hartkopp <oliver@hartkopp.net>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

In rose_node_start() as well as in rose_node_stop() __acquires() and
spin_lock_bh() were wrongly passing rose_neigh_list_lock instead of
rose_node_list_lock arguments.
Signed-off-by: NBernard Pidoux <f6bvp@amsat.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This trivial fix retrieves the network namespace from frag queue
and use it to get the network device in the right namespace.
Signed-off-by: NDaniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When a netdev is moved across namespaces with the
'dev_change_net_namespace' function, the 'device_rename' function is
used to fixup kobject and refresh the sysfs tree. The device_rename
function will call kobject_rename and this one will check if there is
an object with the same name and this is the case because we are
renaming the object with the same name.

The use of 'device_rename' seems for me wrong because we usually don't
rename it but just move it across namespaces. As we just want to do a
mini "netdev_[un]register", IMO the functions
'netdev_[un]register_kobject' should be used instead, like an usual
network device [un]registering.

This patch replace device_rename by netdev_unregister_kobject,
followed by netdev_register_kobject.

The netdev_register_kobject will call device_initialize and will raise
a warning indicating the device was already initialized. In order to
fix that, I split the device initialization into a separate function
and use it together with 'netdev_register_kobject' into
register_netdevice. So we can safely call 'netdev_register_kobject' in
'dev_change_net_namespace'.

This fix will allow to properly use the sysfs per namespace which is
coming from -mm tree.
Signed-off-by: NDaniel Lezcano <dlezcano@fr.ibm.com>
Acked-by: NBenjamin Thery <benjamin.thery@bull.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The new RV2P firmware fixes 2 issues:

1. The jumbo rx buffer page size is now configurable and set to the
   proper PAGE_SIZE.  Before, it was assumed to be always 4K.

2. Driver sometimes would crash when receiving jumbo packets mixed
   with firmware management packets.  This was caused by the old
   firmware DMA'ing to the wrong address.
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We should zero out the context memory for 5709 before each reset.  When
we resume after suspend for example, the memory may not be zero and the
chip may not function correctly.
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NBenjamin Li <benli@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>