12 May, 2013
1 commit
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Pull audit changes from Eric Paris:
"Al used to send pull requests every couple of years but he told me to
just start pushing them to you directly.Our touching outside of core audit code is pretty straight forward. A
couple of interface changes which hit net/. A simple argument bug
calling audit functions in namei.c and the removal of some assembly
branch prediction code on ppc"* git://git.infradead.org/users/eparis/audit: (31 commits)
audit: fix message spacing printing auid
Revert "audit: move kaudit thread start from auditd registration to kaudit init"
audit: vfs: fix audit_inode call in O_CREAT case of do_last
audit: Make testing for a valid loginuid explicit.
audit: fix event coverage of AUDIT_ANOM_LINK
audit: use spin_lock in audit_receive_msg to process tty logging
audit: do not needlessly take a lock in tty_audit_exit
audit: do not needlessly take a spinlock in copy_signal
audit: add an option to control logging of passwords with pam_tty_audit
audit: use spin_lock_irqsave/restore in audit tty code
helper for some session id stuff
audit: use a consistent audit helper to log lsm information
audit: push loginuid and sessionid processing down
audit: stop pushing loginid, uid, sessionid as arguments
audit: remove the old depricated kernel interface
audit: make validity checking generic
audit: allow checking the type of audit message in the user filter
audit: fix build break when AUDIT_DEBUG == 2
audit: remove duplicate export of audit_enabled
Audit: do not print error when LSMs disabled
...
11 May, 2013
1 commit
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Pull stray syscall bits from Al Viro:
"Several syscall-related commits that were missing from the original"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
switch compat_sys_sysctl to COMPAT_SYSCALL_DEFINE
unicore32: just use mmap_pgoff()...
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE
x86, vm86: fix VM86 syscalls: use SYSCALL_DEFINEx(...)
10 May, 2013
2 commits
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Signed-off-by: Al Viro
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Pull removal of GENERIC_GPIO from Grant Likely:
"GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any
valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it
is possible to do so which has been causing confusion and breakage.
This branch does the work to completely eliminate GENERIC_GPIO."* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux:
gpio: update gpio Chinese documentation
Remove GENERIC_GPIO config option
Convert selectors of GENERIC_GPIO to GPIOLIB
blackfin: force use of gpiolib
m68k: coldfire: use gpiolib
mips: pnx833x: remove requirement for GENERIC_GPIO
openrisc: default GENERIC_GPIO to false
avr32: default GENERIC_GPIO to false
xtensa: remove explicit selection of GENERIC_GPIO
sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB
powerpc: remove redundant GENERIC_GPIO selection
unicore32: default GENERIC_GPIO to false
unicore32: remove unneeded select GENERIC_GPIO
arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB
arm: remove redundant GENERIC_GPIO selection
mips: alchemy: require gpiolib
mips: txx9: change GENERIC_GPIO to GPIOLIB
mips: loongson: use GPIO driver on CONFIG_GPIOLIB
mips: remove redundant GENERIC_GPIO select
07 May, 2013
1 commit
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If hard_irq_disable() is called while interrupts are already soft-disabled
(which is the most common case) all is already well.However you can (and in some cases want) to call it while everything is
enabled (to make sure you don't get a lazy even, for example before entry
into KVM guests) and in this case we need to inform the irq tracer that
the irqs are going off.We have to change the inline into a macro to avoid an include circular
dependency hell hole.Signed-off-by: Benjamin Herrenschmidt
06 May, 2013
18 commits
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We are registering the attribute with permission 0600 but it
doesn't have a store callback, which causes WARN_ON's during
boot. Fix the permission.Signed-off-by: Benjamin Herrenschmidt
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The PCI core supports an offset per aperture nowadays but our arch
code still has a single offset per host bridge representing the
difference betwen CPU memory addresses and PCI MMIO addresses.This is a problem as new machines and hypervisor versions are
coming out where the 64-bit windows will have a different offset
(basically mapped 1:1) from the 32-bit windows.This fixes it by using separate offsets. In the long run, we probably
want to get rid of that intermediary struct pci_controller and have
those directly stored into the pci_host_bridge as they are parsed
but this will be a more invasive change.Signed-off-by: Benjamin Herrenschmidt
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Some devices don't have a correct node ID and thus can't be
attached to an iommu.The message displayed by the iommu code isn't very useful if
you don't have a device-tree node as it tries to print the
device-tree path but not the struct device name.Improve this by printing the device name as well.
Signed-off-by: Benjamin Herrenschmidt
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We are registering the attribute with permission 0644 but it
doesn't have a store callback, which causes WARN_ON's during
boot. Fix the permission.Signed-off-by: Benjamin Herrenschmidt
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Some interrupt controllers refuse to map interrupts marked as
"protected" by firwmare. Since we try to map everyting in the
device-tree on some platforms, we end up with a lot of nasty
WARN's in the boot log for what is a normal situation on those
machines.This defines a specific return code (-EPERM) from the host map()
callback which cause irqdomain to fail silently.MPIC is updated to return this when hitting a protected source
printing only a single line message for diagnostic purposes.Signed-off-by: Benjamin Herrenschmidt
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The property should be "ibm,power8-pciex", not "ibm,p8-pciex". The latter
was changed in FW because it was inconsistent with the rest of the nodes.Signed-off-by: Benjamin Herrenschmidt
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When converting to use the new pci_add_resource_offset() we didn't
properly account for empty resources (0 flags) and add those bogons
to the PHBs. The result is some annoying messages in the log.Signed-off-by: Benjamin Herrenschmidt
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If OPAL returns an error, propagate it upward rather than spinning
seconds waiting for a CPU that will never show upSigned-off-by: Benjamin Herrenschmidt
Signed-off-by: Benjamin Herrenschmidt -
Signed-off-by: Nishanth Aravamudan
Signed-off-by: Benjamin Herrenschmidt -
Signed-off-by: Nishanth Aravamudan
Signed-off-by: Benjamin Herrenschmidt -
Signed-off-by: Nishanth Aravamudan
Signed-off-by: Benjamin Herrenschmidt -
Also, make HTM's presence dependent on the .config option.
Signed-off-by: Nishanth Aravamudan
Signed-off-by: Benjamin Herrenschmidt -
On pseries machines the detection for max_bus_speed should be done
through an OpenFirmware property. This patch adds a function to perform
this detection and a hook to perform dynamic adding of the function only
for pseries. This is done by overwriting the weak
pcibios_root_bridge_prepare function which is called by
pci_create_root_bus().From: Lucas Kannebley Tavares
Signed-off-by: Kleber Sacilotto de Souza
Signed-off-by: Benjamin Herrenschmidt -
The following patch implements a new PAPR change which allows
the OS to force the use of 32 bit MSIs, regardless of what
the PCI capabilities indicate. This is required for some
devices that advertise support for 64 bit MSIs but don't
actually support them.Signed-off-by: Brian King
Signed-off-by: Benjamin Herrenschmidt -
Make sure that current->thread.reg exists before we deference it in
flush_hash_page.Signed-off-by: Michael Neuling
Reported-by: John J Miller
Cc:
Signed-off-by: Benjamin Herrenschmidt -
Currently, the OPAL exception vectors are registered before the feature
fixups are processed. This means that the now-firmware-owned vectors
will likely be overwritten by the kernel.This change moves the exception registration code to an early initcall,
rather than at machine_init time.Signed-off-by: Jeremy Kerr
Signed-off-by: Benjamin Herrenschmidt -
POWER8 allows read and write of the DSCR in userspace. We added
kernel emulation so applications could always use the instructions
regardless of the CPU type.Unfortunately there are two SPRs for the DSCR and we only added
emulation for the privileged one. Add code to match the non
privileged one.A simple test was created to verify the fix:
http://ozlabs.org/~anton/junkcode/user_dscr_test.c
Without the patch we get a SIGILL and it passes with the patch.
Signed-off-by: Anton Blanchard
Cc:
Signed-off-by: Benjamin Herrenschmidt -
Pull kvm updates from Gleb Natapov:
"Highlights of the updates are:general:
- new emulated device API
- legacy device assignment is now optional
- irqfd interface is more generic and can be shared between archesx86:
- VMCS shadow support and other nested VMX improvements
- APIC virtualization and Posted Interrupt hardware support
- Optimize mmio spte zappingppc:
- BookE: in-kernel MPIC emulation with irqfd support
- Book3S: in-kernel XICS emulation (incomplete)
- Book3S: HV: migration fixes
- BookE: more debug support preparation
- BookE: e6500 supportARM:
- reworking of Hyp idmapss390:
- ioeventfd for virtio-ccwAnd many other bug fixes, cleanups and improvements"
* tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (204 commits)
kvm: Add compat_ioctl for device control API
KVM: x86: Account for failing enable_irq_window for NMI window request
KVM: PPC: Book3S: Add API for in-kernel XICS emulation
kvm/ppc/mpic: fix missing unlock in set_base_addr()
kvm/ppc: Hold srcu lock when calling kvm_io_bus_read/write
kvm/ppc/mpic: remove users
kvm/ppc/mpic: fix mmio region lists when multiple guests used
kvm/ppc/mpic: remove default routes from documentation
kvm: KVM_CAP_IOMMU only available with device assignment
ARM: KVM: iterate over all CPUs for CPU compatibility check
KVM: ARM: Fix spelling in error message
ARM: KVM: define KVM_ARM_MAX_VCPUS unconditionally
KVM: ARM: Fix API documentation for ONE_REG encoding
ARM: KVM: promote vfp_host pointer to generic host cpu context
ARM: KVM: add architecture specific hook for capabilities
ARM: KVM: perform HYP initilization for hotplugged CPUs
ARM: KVM: switch to a dual-step HYP init code
ARM: KVM: rework HYP page table freeing
ARM: KVM: enforce maximum size for identity mapped code
ARM: KVM: move to a KVM provided HYP idmap
...
05 May, 2013
1 commit
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Pull MMC update from Chris Ball:
"MMC highlights for 3.10:Core:
- Introduce MMC_CAP2_NO_PRESCAN_POWERUP to allow skipping
mmc_power_up() at boot/initialization time if it's already
happened, for performance (faster boot time) reasons.
- Fix a bit width test failure that resulted in old eMMC cards being
put into 1-bit mode when 4-bit mode was available.
- Expose fwrev/hwrev for MMCv4 parts.
- Improve card removal logic in the case where the card's removed
slowly; we were missing card removal events if the card retained
contact with the slot pads for long enough to reply to a CMD13
while being removed.Drivers:
- davinci_mmc: Support using PIO instead of DMA.
- dw_mmc: Add support for Exynos4412.
- mxcmmc: DT support, use slot-gpio API.
- mxs-mmc: Add broken-cd/cd-inverted/non-removable DT property
support.
- sdhci-sirf: New sdhci-pltfm driver for CSR SiRF SoCs:
SiRFprimaII: unicore ARM Cortex-A9
SiRFatlas6: unicore ARM Cortex-A9
SiRFmarco: dual core ARM Cortex-A9 SMP
- sdhci-tegra: Add support for Tegra114 platforms, use
mmc_of_parse()"* tag 'mmc-updates-for-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (66 commits)
mmc: sdhci-tegra: fix MODULE_DEVICE_TABLE
mmc: core: fix init controller performance regression, updated patch
mmc: mxcmmc: enable DMA support on mpc512x
mmc: mxcmmc: constify mxcmci_devtype
mmc: mxcmmc: use slot-gpio API for write-protect detection
mmc: mxcmmc: add mpc512x SDHC support
mmc: mxcmmc: fix race conditions for host->req and host->data access
mmc: mxcmmc: DT support
mmc: dw_mmc: let device core setup the default pin configuration
mmc: mxs-mmc: add broken-cd property
mmc: mxs-mmc: add non-removable property
mmc: mxs-mmc: add cd-inverted property
mmc: core: call pm_runtime_put_noidle in pm_runtime_get_sync failed case
mmc: mxcmmc: Fix bug when card is present during boot
mmc: core: fix performance regression initializing MMC host controllers
Revert "mmc: core: wait while adding MMC host to ensure root mounts successfully"
mmc: atmel-mci: pio hang on block errors
mmc: core: Fix bit width test failing on old eMMC cards
mmc: dw_mmc: Use pr_info instead of printk
mmc: dw_mmc: Check return value of regulator_enable
...
03 May, 2013
1 commit
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Pull powerpc update from Benjamin Herrenschmidt:
"The main highlights this time around are:- A pile of addition POWER8 bits and nits, such as updated
performance counter support (Michael Ellerman), new branch history
buffer support (Anshuman Khandual), base support for the new PCI
host bridge when not using the hypervisor (Gavin Shan) and other
random related bits and fixes from various contributors.- Some rework of our page table format by Aneesh Kumar which fixes a
thing or two and paves the way for THP support. THP itself will
not make it this time around however.- More Freescale updates, including Altivec support on the new e6500
cores, new PCI controller support, and a pile of new boards support
and updates.- The usual batch of trivial cleanups & fixes"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (156 commits)
powerpc: Fix build error for book3e
powerpc: Context switch the new EBB SPRs
powerpc: Turn on the EBB H/FSCR bits
powerpc: Replace CPU_FTR_BCTAR with CPU_FTR_ARCH_207S
powerpc: Setup BHRB instructions facility in HFSCR for POWER8
powerpc: Fix interrupt range check on debug exception
powerpc: Update tlbie/tlbiel as per ISA doc
powerpc: Print page size info during boot
powerpc: print both base and actual page size on hash failure
powerpc: Fix hpte_decode to use the correct decoding for page sizes
powerpc: Decode the pte-lp-encoding bits correctly.
powerpc: Use encode avpn where we need only avpn values
powerpc: Reduce PTE table memory wastage
powerpc: Move the pte free routines from common header
powerpc: Reduce the PTE_INDEX_SIZE
powerpc: Switch 16GB and 16MB explicit hugepages to a different page table format
powerpc: New hugepage directory format
powerpc: Don't truncate pgd_index wrongly
powerpc: Don't hard code the size of pte page
powerpc: Save DAR and DSISR in pt_regs on MCE
...
02 May, 2013
15 commits
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This adds the API for userspace to instantiate an XICS device in a VM
and connect VCPUs to it. The API consists of a new device type for
the KVM_CREATE_DEVICE ioctl, a new capability KVM_CAP_IRQ_XICS, which
functions similarly to KVM_CAP_IRQ_MPIC, and the KVM_IRQ_LINE ioctl,
which is used to assert and deassert interrupt inputs of the XICS.The XICS device has one attribute group, KVM_DEV_XICS_GRP_SOURCES.
Each attribute within this group corresponds to the state of one
interrupt source. The attribute number is the same as the interrupt
source number.This does not support irq routing or irqfd yet.
Signed-off-by: Paul Mackerras
Acked-by: David Gibson
Signed-off-by: Alexander Graf -
Add the missing unlock before return from function set_base_addr()
when disables the mapping.Introduced by commit 5df554ad5b7522ea62b0ff9d5be35183494efc21
(kvm/ppc/mpic: in-kernel MPIC emulation)Signed-off-by: Wei Yongjun
Signed-off-by: Alexander Graf -
These functions do an srcu_dereference without acquiring the srcu lock
themselves.Signed-off-by: Scott Wood
Signed-off-by: Alexander Graf -
This is an unused (no pun intended) leftover from when this code did
reference counting.Signed-off-by: Scott Wood
Signed-off-by: Alexander Graf -
Keeping a linked list of statically defined objects doesn't work
very well when we have multiple guests. :-PSwitch to an array of constant objects. This fixes a hang when
multiple guests are used.Signed-off-by: Scott Wood
[agraf: remove struct list_head from mem_reg]
Signed-off-by: Alexander Graf -
Pull VFS updates from Al Viro,
Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).7kloc removed.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
don't bother with deferred freeing of fdtables
proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
proc: Make the PROC_I() and PDE() macros internal to procfs
proc: Supply a function to remove a proc entry by PDE
take cgroup_open() and cpuset_open() to fs/proc/base.c
ppc: Clean up scanlog
ppc: Clean up rtas_flash driver somewhat
hostap: proc: Use remove_proc_subtree()
drm: proc: Use remove_proc_subtree()
drm: proc: Use minor->index to label things, not PDE->name
drm: Constify drm_proc_list[]
zoran: Don't print proc_dir_entry data in debug
reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
proc: Supply an accessor for getting the data from a PDE's parent
airo: Use remove_proc_subtree()
rtl8192u: Don't need to save device proc dir PDE
rtl8187se: Use a dir under /proc/net/r8180/
proc: Add proc_mkdir_data()
proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
proc: Move PDE_NET() to fs/proc/proc_net.c
... -
We moved the definition of shift_to_mmu_psize and mmu_psize_to_shift
out of hugetlbpage.c in patch "powerpc: New hugepage directory format".These functions are not related to hugetlbpage and we want to use them
outside hugetlbpage.c We missed a definition for book3e when we moved
these functions. Add similar functions to mmu-book3e.hSigned-off-by: Aneesh Kumar K.V
Signed-off-by: Benjamin Herrenschmidt -
This context switches the new Event Based Branching (EBB) SPRs. The three new
SPRs are:
- Event Based Branch Handler Register (EBBHR)
- Event Based Branch Return Register (EBBRR)
- Branch Event Status and Control Register (BESCR)Signed-off-by: Michael Ellerman
Signed-off-by: Matt Evans
Signed-off-by: Michael Neuling
Signed-off-by: Benjamin Herrenschmidt -
This turns Event Based Branching (EBB) on in the Hypervisor Facility Status and
Control Register (HFSCR) and Facility Status and Control Register (FSCR).Signed-off-by: Michael Neuling
Signed-off-by: Benjamin Herrenschmidt -
We are getting low on cpu feature bits. So rather than add a separate bit for
every new Power8 feature, add a bit for arch 2.07 server catagory and use that
instead.Hijack the value we had for BCTAR, but swap the value with CFAR so that all the
ARCH defines are together.Note we don't touch CPU_FTR_TM, because it is conditionally enabled if
the kernel is built with TM support.Signed-off-by: Michael Ellerman
Signed-off-by: Michael Neuling
Signed-off-by: Benjamin Herrenschmidt -
Make BHRB instructions available in problem and privileged states.
Signed-off-by: Anshuman Khandual
Signed-off-by: Benjamin Herrenschmidt -
We do not want to take single step and branch-taken debug exception
in kernel exception code. But the address range check was not covering
all kernel exception handlers address range.With this patch we defined the interrupt_end label which defines the
end on kernel exception code. So now we check interrupt_base to
interrupt_end range for not handling debug exception in kernel
exception entry.Signed-off-by: Bharat Bhushan
Signed-off-by: Benjamin Herrenschmidt -
Clean up the pseries scanlog driver's use of procfs:
(1) Don't need to save the proc_dir_entry pointer as we have the filename to
remove with.(2) Save the scan log buffer pointer in a static variable (there is only one
of it) and don't save it in the PDE (which doesn't have a destructor).Signed-off-by: David Howells
cc: Benjamin Herrenschmidt
cc: Paul Mackerras
cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Al Viro -
Clean up some of the problems with the rtas_flash driver:
(1) It shouldn't fiddle with the internals of the procfs filesystem (altering
pde->count).(2) If pid namespaces are in effect, then you can get multiple inodes
connected to a single pde, thereby rendering the pde->count > 2 test
useless.(3) The pde->count fudging doesn't work for forked, dup'd or cloned file
descriptors, so add static mutexes and use them to wrap access to the
driver through read, write and release methods.(4) The driver can only handle one device, so allocate most of the data
previously attached to the pde->data as static variables instead (though
allocate the validation data buffer with kmalloc).(5) We don't need to save the pde pointers as long as we have the filenames
available for removal.(6) Don't try to multiplex what the update file read method does based on the
filename. Instead provide separate file ops and split the function.Whilst we're at it, tabulate the procfile information and loop through it when
creating or destroying them rather than manually coding each one.[Folded fixes from Vasant Hegde ]
Signed-off-by: David Howells
cc: Benjamin Herrenschmidt
cc: Paul Mackerras
cc: Anton Blanchard
cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Al Viro -
Supply accessor functions to set attributes in proc_dir_entry structs.
The following are supplied: proc_set_size() and proc_set_user().
Signed-off-by: David Howells
Acked-by: Mauro Carvalho Chehab
cc: linuxppc-dev@lists.ozlabs.org
cc: linux-media@vger.kernel.org
cc: netdev@vger.kernel.org
cc: linux-wireless@vger.kernel.org
cc: linux-pci@vger.kernel.org
cc: netfilter-devel@vger.kernel.org
cc: alsa-devel@alsa-project.org
Signed-off-by: Al Viro
