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: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Jerone Young <jyoung5@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

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

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

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

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

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

Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi 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: Ulrich Drepper <drepper@redhat.com>
Signed-off-by: Linus 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: Ulrich Drepper <drepper@redhat.com>
Signed-off-by: Linus 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: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus 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: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Thomas 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: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas 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: Oliver Hartkopp <oliver@hartkopp.net>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Thomas 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: Bernard Pidoux <f6bvp@amsat.org>
Signed-off-by: David 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: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David 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: Daniel Lezcano <dlezcano@fr.ibm.com>
Acked-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David 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: Michael Chan <mchan@broadcom.com>
Signed-off-by: David 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: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The register BNX2_CTX_STATUS (0x1004) should be skipped on 5709 as it
contains reserved bits.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

On some remote PHY blade systems, the driver receives no initial link
interrupt.  As a result, the GMII/MII MAC mode does not get setup properly.
To fix this problem, we add an initial poll of the link state after chip
reset.

With this change, the setting of the initial carrier state in the init
code can be eliminated.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2_set_remote_link() should be called under bp->phy_lock to protect
against concurrent polling and interrupt calls.  This change is needed
by the next patch which will add one initial poll of the remote PHY
link status.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The forwarding table binary interface (my bad choice), only exposes
the port number of the first 8 bits. The bridge code was limited to
256 ports at the time, but now the kernel supports up 1024 ports, so
the upper bits are lost when doing:

   brctl showmacs

The fix is to squeeze the extra bits into small hole left in data
structure, to maintain binary compatiablity.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch updates the version number to 3.92.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

All variants of the 5714, 5715, and 5780 offer a feature called the
"Universal Management Port".  This feature is implemented in firmware
and is largely transparent to the driver, except...

It turns out that the UMP firmware needs to know the current status
of the link.  Because the firmware cannot touch the PHY registers while
the driver is in control of the device, it needs the driver to report
link status changes through an additional handshaking mechanism.
Without this handshake, it has been observed in the field that the UMP
firmware will not operate correctly.

This patch implements the new handshake with the UMP firmware.  Since
the handshake uses the same mechanism ASF heartbeats use, code was
added to detect and wait for completion of a pending previous event.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

A CPMU related loopback test bug existed for AX revisions of the 5761.
While that errata has been fixed, the CPMU still slows down the core
clock too far to run the loopback test successfully.  This patch
disables the CPMU LINK_SPEED mode just like we do with the AX
revisions of the 5761 and all revisions of the 5784.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The 5761 NVRAM sizes assigned to the nvram_size member are half as big
as they should be.  This patch corrects the NVRAM sizes and replaces
the hardcoded constants with preprocessor constants for readability.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The MI clock is not configured correctly on adapters with the CPMU
present.  The tg3 driver has code which statically sets the MI clock to
be a fraction of the speed at which the core clock is running.
However, the CPMU can change the adapter's core clock frequency based
on operating conditions.  Consequently, the MI will run slow when the
core's clock has been slowed down.

There is a new 500KHz constant frequency clock available on adapters
with a CPMU.  This patch removes the static core clock scaling and
configures the MI clock to use this new 500KHz clock instead.

Running the MI clock at slower speeds will not directly result in data
corruption, but it does challenge the PHY read and write routine timeouts.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

If someone tries to _urb_unlink while _urb_queue_head is running, he'll see
_urb->queue == NULL and fail to do any locking.  Prevent that from happening
by strategically placed barriers.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>