Some msrs (notable MSR_KERNEL_GS_BASE) are held in the processor registers
and need to be flushed to the vcpu struture before they can be read.

This fixes cygwin longjmp() failure on Windows x64.
Signed-off-by: NAvi Kivity <avi@redhat.com>

kvm->slots_lock is outer to kvm->lock, so take slots_lock
in kvm_vm_ioctl_assign_device() before taking kvm->lock,
rather than taking it in kvm_iommu_map_memslots().

Cc: stable@kernel.org
Signed-off-by: NMark McLoughlin <markmc@redhat.com>
Acked-by: NMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>

Simplify LAPIC TMCCT calculation by using hrtimer provided
function to query remaining time until expiration.

Fixes host hang with nested ESX.
Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NAvi Kivity <avi@redhat.com>

Missing buckets and wrong parameter for free_irq()
Signed-off-by: NSheng Yang <sheng@linux.intel.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>

Software are not allow to access device MMIO using cacheable memory type, the
patch limit MMIO region with UC and WC(guest can select WC using PAT and
PCD/PWT).
Signed-off-by: NSheng Yang <sheng@linux.intel.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>

This is better.

Currently, this code path is posing us big troubles,
and we won't have a decent patch in time. So, temporarily
disable it.
Signed-off-by: NGlauber Costa <glommer@redhat.com>
Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>

count_load_time assignment is bogus: its supposed to contain what it
means, not the expiration time.
Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>

In the past, kvm_get_kvm() and kvm_put_kvm() was called in assigned device irq
handler and interrupt_work, in order to prevent cancel_work_sync() in
kvm_free_assigned_irq got a illegal state when waiting for interrupt_work done.
But it's tricky and still got two problems:

1. A bug ignored two conditions that cancel_work_sync() would return true result
in a additional kvm_put_kvm().

2. If interrupt type is MSI, we would got a window between cancel_work_sync()
and free_irq(), which interrupt would be injected again...

This patch discard the reference count used for irq handler and interrupt_work,
and ensure the legal state by moving the free function at the very beginning of
kvm_destroy_vm(). And the patch fix the second bug by disable irq before
cancel_work_sync(), which may result in nested disable of irq but OK for we are
going to free it.
Signed-off-by: NSheng Yang <sheng@linux.intel.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>

kvm_arch_sync_events is introduced to quiet down all other events may happen
contemporary with VM destroy process, like IRQ handler and work struct for
assigned device.

For kvm_arch_sync_events is called at the very beginning of kvm_destroy_vm(), so
the state of KVM here is legal and can provide a environment to quiet down other
events.
Signed-off-by: NSheng Yang <sheng@linux.intel.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>

The destructor for huge pages uses the backing inode for adjusting
hugetlbfs accounting.

Hugepage mappings are destroyed by exit_mmap, after
mmu_notifier_release, so there are no notifications through
unmap_hugepage_range at this point.

The hugetlbfs inode can be freed with pages backed by it referenced
by the shadow. When the shadow releases its reference, the huge page
destructor will access a now freed inode.

Implement the release operation for kvm mmu notifiers to release page
refs before the hugetlbfs inode is gone.
Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>

Kconfig symbols are not available in userspace, and are not stripped by
headers-install.  Avoid their use by adding #defines in <asm/kvm.h> to
suit each architecture.
Signed-off-by: NAvi Kivity <avi@redhat.com>

The floating-point registers f6-f11 is used by vmm and
saved in kvm-pt-regs, so should set the correct bit mask
and the pointer in fp_state, otherwise, fpswa may touch
vmm's fp registers instead of guests'.

In addition, for fp trap handling,  since the instruction
which leads to fp trap is completely executed, so can't
use retry machanism to re-execute it, because it may
pollute some registers.
Signed-off-by: NYang Zhang <yang.zhang@intel.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ASoC: Only register AC97 bus if it's not done already
  ALSA: hda - Add snd_hda_multi_out_dig_cleanup()
  ALSA: hda - Add missing terminator in slave dig-out array
  ALSA: hda - Change HP dv7 (103c:30f4) quirk from hp-m4 to hp-dv5 model
  ALSA: hda - Register (new) devices at reconfig
  ALSA: mtpav - Fix initial value for input hwport
  ALSA: hda - add id for Intel IbexPeak integrated HDMI codec
  ALSA: hda - compute checksum in HDMI audio infoframe
  ALSA: hda - enable HDMI audio pin out at module loading time
  ALSA: hda - allow multi-channel HDMI audio playback when ELD is not present
  ASoC: Update SDP3430 machine driver for snd_soc_card
  ALSA: hda - Add quirk for Asus z37e (1043:8284)
  sound: Remove OSSlib stuff from linux/soundcard.h
  ASoC: WM8990: Fix kcontrol's private value use in put callback
  ASoC: TLV320AIC3X: Fix kcontrol's private value use in put callback

uids in namespaces other than init don't get a sysfs entry.

For those in the init namespace, while we're waiting to remove
the sysfs entry for the uid the uid is still hashed, and
alloc_uid() may re-grab that uid without getting a new
reference to the user_ns, which we've already put in free_user
before scheduling remove_user_sysfs_dir().
Reported-and-tested-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: NSerge E. Hallyn <serue@us.ibm.com>
Acked-by: NDavid Howells <dhowells@redhat.com>
Tested-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ASoC supports both explicit codec drivers for AC97 devices and a simple
driver which uses the standard ALSA AC97 framework for codec support.
When used with the generic AC97 codec support that will provide the
ad hoc AC97 device for drivers like touchscreens to attach to so the
core shouldn't do so.
Reported-by: NManuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Added the helper function snd_hda_multi_out_dig_cleanup() to clean up
the digital outputs with multi setup.  This call is needed in cases
the codec supports multiple digital outputs as slaves.  Otherwise the
slave widgets aren't properly cleaned up.

For a single digital output (e.g. in patch_conexant.c), this call isn't
needed.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Added the missing terminator for ad1989b_slave_dig_outs[].

Cc: <stable@kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Change HP dv7 quirk: although reported to work with hp-m4 model
(https://bugzilla.novell.com/show_bug.cgi?id=445321), the original
report doesn't contain info about testing of internal microphone.

Recently I received a report about internal mic not working
(https://qa.mandriva.com/show_bug.cgi?id=44855#c193), this must be
related with the forced line in on pin 0x0e done with hp-m4 model. Thus
change the current quirk from STAC_HP_M4 to STAC_HP_DV5, later reported
to be fixed on a provided kernel with this change
(https://qa.mandriva.com/show_bug.cgi?id=44855#c196).
Signed-off-by: NHerton Ronaldo Krzesinski <herton@mandriva.com.br>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits)
  wimax: fix oops in wimax_dev_get_by_genl_info() when looking up non-wimax iface
  net: 4 bytes kernel memory disclosure in SO_BSDCOMPAT gsopt try #2
  netxen: fix compile waring "label ‘set_32_bit_mask’ defined but not used" on IA64 platform
  bnx2: Update version to 1.9.2 and copyright.
  bnx2: Fix jumbo frames error handling.
  bnx2: Update 5709 firmware.
  bnx2: Update 5706/5708 firmware.
  3c505: do not set pcb->data.raw beyond its size
  Documentation/connector/cn_test.c: don't use gfp_any()
  net: don't use in_atomic() in gfp_any()
  IRDA: cnt is off by 1
  netxen: remove pcie workaround
  sun3: print when lance_open() fails
  qlge: bugfix: Add missing rx buf clean index on early exit.
  qlge: bugfix: Fix RX scaling values.
  qlge: bugfix: Fix TSO breakage.
  qlge: bugfix: Add missing dev_kfree_skb_any() call.
  qlge: bugfix: Add missing put_page() call.
  qlge: bugfix: Fix fatal error recovery hang.
  qlge: bugfix: Use netif_receive_skb() and vlan_hwaccel_receive_skb().
  ...

When a non-wimax interface is looked up by the stack, a bad pointer is
returned when the looked-up interface is not found in the list (of
registered WiMAX interfaces). This causes an oops in the caller when
trying to use the pointer.

Fix by properly setting the pointer to NULL if we don't exit from the
list_for_each() with a found entry.
Signed-off-by: NInaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In function sock_getsockopt() located in net/core/sock.c, optval v.val
is not correctly initialized and directly returned in userland in case
we have SO_BSDCOMPAT option set.

This dummy code should trigger the bug:

int main(void)
{
	unsigned char buf[4] = { 0, 0, 0, 0 };
	int len;
	int sock;
	sock = socket(33, 2, 2);
	getsockopt(sock, 1, SO_BSDCOMPAT, &buf, &len);
	printf("%x%x%x%x\n", buf[0], buf[1], buf[2], buf[3]);
	close(sock);
}

Here is a patch that fix this bug by initalizing v.val just after its
declaration.
Signed-off-by: NClément Lecigne <clement.lecigne@netasq.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When compile the latest kernel on IA64 platform,I got a warning:
drivers/net/netxen/netxen_nic_main.c:203: warning: label ‘set_32_bit_mask’ 
defined but not used

We do not need label ‘set_32_bit_mask’  on IA64 platform,So move it to #else.
Signed-off-by: NYang Hongyang <yanghy@cn.fujitsu.com>
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>

If errors are reported on a frame descriptor, we need to
account for the buffer pages that may have been used for this
error packet and recycle them.  Otherwise, we may get the wrong
pages for the next packet.
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NBenjamin Li <benli@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

New firmware fixes a data corruption issue when receiving and
placing jumbo frames into host buffers.  In some cases, the
buffer descriptor is not updated correctly and this will lead
to the driver linking the wrong number of pages into the SKB.
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

New firmware fixes a data corruption issue when receiving and
placing jumbo frames into host buffers.  In some cases, the
buffer descriptor is not updated correctly and this will lead
to the driver linking the wrong number of pages into the SKB.
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Ensure that we do not set pcb->data.raw beyond its size, print an error message
and return false if we attempt to. A timout message was printed one too early.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

cn_test_timer_func() is a timer handler and can never use GFP_KERNEL -
there's no point in using gfp_any() here.

Also, use setup_timer().
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The problem is that in_atomic() will return false inside spinlocks if
CONFIG_PREEMPT=n.  This will lead to deadlockable GFP_KERNEL allocations
from spinlocked regions.

Secondly, if CONFIG_PREEMPT=y, this bug solves itself because networking
will instead use GFP_ATOMIC from this callsite.  Hence we won't get the
might_sleep() debugging warnings which would have informed us of the buggy
callsites.

Solve both these problems by switching to in_interrupt().  Now, if someone
runs a gfp_any() allocation from inside spinlock we will get the warning
if CONFIG_PREEMPT=y.

I reviewed all callsites and most of them were too complex for my little
brain and none of them documented their interface requirements.  I have no
idea what this patch will do.
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If no prior break occurs, cnt reaches 101 after the loop, so we are still able
to change speed when cnt has become 100.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove workaround for pcie bug in early revisions of NX3031
(rev 41 or earlier). This is taken care of during firmware init.

The workaround required writing pcie config reg of every
pcie function on a card, not all of which are enabled.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

With while (--i > 0) { ... } i reaches 0; print when lance_open() fails
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The large receive buffer queue is not properly tracking the current
index in the case where an early exit occurs.  This can happen when a
page alloc or dma mapping fails.  If this occurs the queue will get
out of sync and invalid indexes can be written to the hardware.
Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Receive packets were only scaling across 2 of the receive queues. The
value was hardcoded to 2 instead of being based on how many rx queues
were running.
Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Moved the buffer mapping to a point after TSO logic has modified the
iph->check field. We were seeing stale data on the PCIe bus.
Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>