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  1. 05 Apr, 2012 4 commits
  3. 03 Apr, 2012 7 commits
    • Alexander Graf's avatar
      KVM: PPC: Book3S: PR: Fix preemption · 592f5d87
      Alexander Graf authored 
      We were leaking preemption counters. Fix the code to always toggle
between preempt and non-preempt properly.
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      592f5d87
    • Alexander Graf's avatar
      KVM: PPC: Save/Restore CR over vcpu_run · e1f8acf8
      Alexander Graf authored 
      On PPC, CR2-CR4 are nonvolatile, thus have to be saved across function calls.
We didn't respect that for any architecture until Paul spotted it in his
patch for Book3S-HV. This patch saves/restores CR for all KVM capable PPC hosts.
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      e1f8acf8
    • Paul Mackerras's avatar
      KVM: PPC: Book3S HV: Save and restore CR in __kvmppc_vcore_entry · a5ddea0e
      Paul Mackerras authored 
      The ABI specifies that CR fields CR2--CR4 are nonvolatile across function
calls.  Currently __kvmppc_vcore_entry doesn't save and restore the CR,
leading to CR2--CR4 getting corrupted with guest values, possibly leading
to incorrect behaviour in its caller.  This adds instructions to save
and restore CR at the points where we save and restore the nonvolatile
GPRs.
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      a5ddea0e
    • Paul Mackerras's avatar
      KVM: PPC: Book3S HV: Fix kvm_alloc_linear in case where no linears exist · b4e51229
      Paul Mackerras authored 
      In kvm_alloc_linear we were using and deferencing ri after the
list_for_each_entry had come to the end of the list.  In that
situation, ri is not really defined and probably points to the
list head.  This will happen every time if the free_linears list
is empty, for instance.  This led to a NULL pointer dereference
crash in memset on POWER7 while trying to allocate an HPT in the
case where no HPTs were preallocated.

This fixes it by using a separate variable for the return value
from the loop iterator.
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      b4e51229
    • Alexander Graf's avatar
      KVM: PPC: Book3S: Compile fix for ppc32 in HIOR access code · b8e6f8ae
      Alexander Graf authored 
      We were failing to compile on book3s_32 with the following errors:

arch/powerpc/kvm/book3s_pr.c:883:45: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
arch/powerpc/kvm/book3s_pr.c:898:79: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]

Fix this by explicity casting the u64 to long before we use it as a pointer.

Also, on PPC32 we can not use get_user/put_user for 64bit wide variables,
as there is no single instruction that could load or store variables that big.

So instead, we have to use copy_from/to_user which works everywhere.
Reported-by: default avatarJörg Sommer <joerg@alea.gnuu.de>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      b8e6f8ae
    • Linus Torvalds's avatar
      Merge branch 'drm-prime-dmabuf-initial' of git://people.freedesktop.org/~airlied/linux · 7d6e1cb7
      Linus Torvalds authored 
      Pull dma-buf prime support from Dave Airlie:
 "This isn't a majorly urgent thing to have, but we'd like to set the
  stage for working on dma-buf support in the drm drivers for the next
  merge window, so I'd like to push in the initial submission now so
  people have something that we can build on top of.  The code just
  introduces the user interface and internal helper functions for
  drivers to use.

  We have driver support under development for i915, nouveau, udl on x86
  and exynos, omapdrm on arm, which we would be aiming for the next
  merge window."

In the -rc1 announcement I asked for people who would use this to
comment on it, and got severa "Yes please" from people for this and for
HSI (that I merged earlier).

So far crickets on pohmelfs and the DMA-mapping infrastructure.

* 'drm-prime-dmabuf-initial' of git://people.freedesktop.org/~airlied/linux:
  drm: base prime/dma-buf support (v5)
      7d6e1cb7
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · ed359a3b
      Linus Torvalds authored 
      Pull networking fixes from David Miller:

 1) Provide device string properly for USB i2400m wimax devices, also
    don't OOPS when providing firmware string.  From Phil Sutter.

 2) Add support for sh_eth SH7734 chips, from Nobuhiro Iwamatsu.

 3) Add another device ID to USB zaurus driver, from Guan Xin.

 4) Loop index start in pool vector iterator is wrong causing MAC to not
    get configured in bnx2x driver, fix from Dmitry Kravkov.

 5) EQL driver assumes HZ=100, fix from Eric Dumazet.

 6) Now that skb_add_rx_frag() can specify the truesize increment
    separately, do so in f_phonet and cdc_phonet, also from Eric
    Dumazet.

 7) virtio_net accidently uses net_ratelimit() not only on the kernel
    warning but also the statistic bump, fix from Rick Jones.

 8) ip_route_input_mc() uses fixed init_net namespace, oops, use
    dev_net(dev) instead.  Fix from Benjamin LaHaise.

 9) dev_forward_skb() needs to clear the incoming interface index of the
    SKB so that it looks like a new incoming packet, also from Benjamin
    LaHaise.

10) iwlwifi mistakenly initializes a channel entry as 2GHZ instead of
    5GHZ, fix from Stanislav Yakovlev.

11) Missing kmalloc() return value checks in orinoco, from Santosh
    Nayak.

12) ath9k doesn't check for HT capabilities in the right way, it is
    checking ht_supported instead of the ATH9K_HW_CAP_HT flag.  Fix from
    Sujith Manoharan.

13) Fix x86 BPF JIT emission of 16-bit immediate field of AND
    instructions, from Feiran Zhuang.

14) Avoid infinite loop in GARP code when registering sysfs entries.
    From David Ward.

15) rose protocol uses memcpy instead of memcmp in a device address
    comparison, oops.  Fix from Daniel Borkmann.

16) Fix build of lpc_eth due to dev_hw_addr_rancom() interface being
    renamed to eth_hw_addr_random().  From Roland Stigge.

17) Make ipv6 RTM_GETROUTE interpret RTA_IIF attribute the same way
    that ipv4 does.  Fix from Shmulik Ladkani.

18) via-rhine has an inverted bit test, causing suspend/resume
    regressions.  Fix from Andreas Mohr.

19) RIONET assumes 4K page size, fix from Akinobu Mita.

20) Initialization of imask register in sky2 is buggy, because bits are
    "or'd" into an uninitialized local variable.  Fix from Lino
    Sanfilippo.

21) Fix FCOE checksum offload handling, from Yi Zou.

22) Fix VLAN processing regression in e1000, from Jiri Pirko.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
  sky2: dont overwrite settings for PHY Quick link
  tg3: Fix 5717 serdes powerdown problem
  net: usb: cdc_eem: fix mtu
  net: sh_eth: fix endian check for architecture independent
  usb/rtl8150 : Remove duplicated definitions
  rionet: fix page allocation order of rionet_active
  via-rhine: fix wait-bit inversion.
  ipv6: Fix RTM_GETROUTE's interpretation of RTA_IIF to be consistent with ipv4
  net: lpc_eth: Fix rename of dev_hw_addr_random
  net/netfilter/nfnetlink_acct.c: use linux/atomic.h
  rose_dev: fix memcpy-bug in rose_set_mac_address
  Fix non TBI PHY access; a bad merge undid bug fix in a previous commit.
  net/garp: avoid infinite loop if attribute already exists
  x86 bpf_jit: fix a bug in emitting the 16-bit immediate operand of AND
  bonding: emit event when bonding changes MAC
  mac80211: fix oper channel timestamp updation
  ath9k: Use HW HT capabilites properly
  MAINTAINERS: adding maintainer for ipw2x00
  net: orinoco: add error handling for failed kmalloc().
  net/wireless: ipw2x00: fix a typo in wiphy struct initilization
  ...
      ed359a3b
  5. 02 Apr, 2012 28 commits
  7. 01 Apr, 2012 1 commit
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