Eric Lee / smarc-fsl-linux-kernel

27 Dec, 2011

3 commits

21 Oct, 2011

1 commit

  • a1b60c1cd   iommu/core: Convert iommu_found to iommu_present ... Browse Code »

    With per-bus iommu_ops the iommu_found function needs to
    work on a bus_type too. This patch adds a bus_type parameter
    to that function and converts all call-places.
    The function is also renamed to iommu_present because the
    function now checks if an iommu is present for a given bus
    and does not check for a global iommu anymore.

    Signed-off-by: Joerg Roedel

    Joerg Roedel
     

23 Jul, 2011

1 commit

  • e72542191   virtio: expose for non-virtualization users too ... Browse Code »

    virtio has been so far used only in the context of virtualization,
    and the virtio Kconfig was sourced directly by the relevant arch
    Kconfigs when VIRTUALIZATION was selected.

    Now that we start using virtio for inter-processor communications,
    we need to source the virtio Kconfig outside of the virtualization
    scope too.

    Moreover, some architectures might use virtio for both virtualization
    and inter-processor communications, so directly sourcing virtio
    might yield unexpected results due to conflicting selections.

    The simple solution offered by this patch is to always source virtio's
    Kconfig in drivers/Kconfig, and remove it from the appropriate arch
    Kconfigs. Additionally, a virtio menu entry has been added so virtio
    drivers don't show up in the general drivers menu.

    This way anyone can use virtio, though it's arguably less accessible
    (and neat!) for virtualization users now.

    Note: some architectures (mips and sh) seem to have a VIRTUALIZATION
    menu merely for sourcing virtio's Kconfig, so that menu is removed too.

    Signed-off-by: Ohad Ben-Cohen
    Signed-off-by: Rusty Russell

    Ohad Ben-Cohen
     

22 May, 2011

1 commit

  • b74323dc2   KVM: ia64: fix sparse warnings ... Browse Code »

    This patch fixes some sparse warning about "dubious one-bit signed bitfield."

    Signed-off-by: Jeff Mahoney
    Originally-by: Jan Blunck
    Signed-off-by: Jan Blunck
    Acked-by: Xiantao Zhang
    Signed-off-by: Avi Kivity

    Jeff Mahoney
     

31 Mar, 2011

1 commit

21 Mar, 2011

1 commit

  • a44f99c7e   Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 ... Browse Code »

    * 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (25 commits)
    video: change to new flag variable
    scsi: change to new flag variable
    rtc: change to new flag variable
    rapidio: change to new flag variable
    pps: change to new flag variable
    net: change to new flag variable
    misc: change to new flag variable
    message: change to new flag variable
    memstick: change to new flag variable
    isdn: change to new flag variable
    ieee802154: change to new flag variable
    ide: change to new flag variable
    hwmon: change to new flag variable
    dma: change to new flag variable
    char: change to new flag variable
    fs: change to new flag variable
    xtensa: change to new flag variable
    um: change to new flag variables
    s390: change to new flag variable
    mips: change to new flag variable
    ...

    Fix up trivial conflict in drivers/hwmon/Makefile

    Linus Torvalds
     

18 Mar, 2011

1 commit

  • 6b7e2d099   KVM: Add "exiting guest mode" state ... Browse Code »

    Currently we keep track of only two states: guest mode and host
    mode. This patch adds an "exiting guest mode" state that tells
    us that an IPI will happen soon, so unless we need to wait for the
    IPI, we can avoid it completely.

    Also
    1: No need atomically to read/write ->mode in vcpu's thread

    2: reorganize struct kvm_vcpu to make ->mode and ->requests
    in the same cache line explicitly

    Signed-off-by: Xiao Guangrong
    Signed-off-by: Avi Kivity

    Xiao Guangrong
     

17 Mar, 2011

1 commit

14 Jan, 2011

1 commit

  • 55065bc52   Merge branch 'kvm-updates/2.6.38' of git://git.kernel.org/pub/scm/virt/kvm/kvm ... Browse Code »

    * 'kvm-updates/2.6.38' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (142 commits)
    KVM: Initialize fpu state in preemptible context
    KVM: VMX: when entering real mode align segment base to 16 bytes
    KVM: MMU: handle 'map_writable' in set_spte() function
    KVM: MMU: audit: allow audit more guests at the same time
    KVM: Fetch guest cr3 from hardware on demand
    KVM: Replace reads of vcpu->arch.cr3 by an accessor
    KVM: MMU: only write protect mappings at pagetable level
    KVM: VMX: Correct asm constraint in vmcs_load()/vmcs_clear()
    KVM: MMU: Initialize base_role for tdp mmus
    KVM: VMX: Optimize atomic EFER load
    KVM: VMX: Add definitions for more vm entry/exit control bits
    KVM: SVM: copy instruction bytes from VMCB
    KVM: SVM: implement enhanced INVLPG intercept
    KVM: SVM: enhance mov DR intercept handler
    KVM: SVM: enhance MOV CR intercept handler
    KVM: SVM: add new SVM feature bit names
    KVM: cleanup emulate_instruction
    KVM: move complete_insn_gp() into x86.c
    KVM: x86: fix CR8 handling
    KVM guest: Fix kvm clock initialization when it's configured out
    ...

    Linus Torvalds
     

12 Jan, 2011

2 commits

02 Nov, 2010

1 commit

  • b595076a1   tree-wide: fix comment/printk typos ... Browse Code »

    "gadget", "through", "command", "maintain", "maintain", "controller", "address",
    "between", "initiali[zs]e", "instead", "function", "select", "already",
    "equal", "access", "management", "hierarchy", "registration", "interest",
    "relative", "memory", "offset", "already",

    Signed-off-by: Uwe Kleine-König
    Signed-off-by: Jiri Kosina

    Uwe Kleine-König
     

24 Oct, 2010

1 commit

  • 55438cc75   KVM: ia64: define kvm_lapic_enabled() to fix a compile error ... Browse Code »

    The following patch

    commit 57ce1659316f4ca298919649f9b1b55862ac3826
    KVM: x86: In DM_LOWEST, only deliver interrupts to vcpus with enabled LAPIC's

    ignored the fact that kvm_irq_delivery_to_apic() was also used by ia64.

    We define kvm_lapic_enabled() to fix a compile error caused by this.
    This will have the same effect as reverting the problematic patch for ia64.

    Signed-off-by: Takuya Yoshikawa
    Signed-off-by: Avi Kivity

    Takuya Yoshikawa
     

05 Aug, 2010

1 commit

  • 3cfc2c42c   Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial ... Browse Code »

    * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (48 commits)
    Documentation: update broken web addresses.
    fix comment typo "choosed" -> "chosen"
    hostap:hostap_hw.c Fix typo in comment
    Fix spelling contorller -> controller in comments
    Kconfig.debug: FAIL_IO_TIMEOUT: typo Faul -> Fault
    fs/Kconfig: Fix typo Userpace -> Userspace
    Removing dead MACH_U300_BS26
    drivers/infiniband: Remove unnecessary casts of private_data
    fs/ocfs2: Remove unnecessary casts of private_data
    libfc: use ARRAY_SIZE
    scsi: bfa: use ARRAY_SIZE
    drm: i915: use ARRAY_SIZE
    drm: drm_edid: use ARRAY_SIZE
    synclink: use ARRAY_SIZE
    block: cciss: use ARRAY_SIZE
    comment typo fixes: charater => character
    fix comment typos concerning "challenge"
    arm: plat-spear: fix typo in kerneldoc
    reiserfs: typo comment fix
    update email address
    ...

    Linus Torvalds
     

01 Aug, 2010

4 commits

17 Jun, 2010

2 commits

09 Jun, 2010

1 commit

01 Jun, 2010

1 commit

  • 1f7389786   Merge branch 'for-35' of git://repo.or.cz/linux-kbuild ... Browse Code »

    * 'for-35' of git://repo.or.cz/linux-kbuild: (81 commits)
    kbuild: Revert part of e8d400a to resolve a conflict
    kbuild: Fix checking of scm-identifier variable
    gconfig: add support to show hidden options that have prompts
    menuconfig: add support to show hidden options which have prompts
    gconfig: remove show_debug option
    gconfig: remove dbg_print_ptype() and dbg_print_stype()
    kconfig: fix zconfdump()
    kconfig: some small fixes
    add random binaries to .gitignore
    kbuild: Include gen_initramfs_list.sh and the file list in the .d file
    kconfig: recalc symbol value before showing search results
    .gitignore: ignore *.lzo files
    headerdep: perlcritic warning
    scripts/Makefile.lib: Align the output of LZO
    kbuild: Generate modules.builtin in make modules_install
    Revert "kbuild: specify absolute paths for cscope"
    kbuild: Do not unnecessarily regenerate modules.builtin
    headers_install: use local file handles
    headers_check: fix perl warnings
    export_report: fix perl warnings
    ...

    Linus Torvalds
     

19 May, 2010

1 commit

17 May, 2010

3 commits

  • 90d83dc3d   KVM: use the correct RCU API for PROVE_RCU=y ... Browse Code »

    The RCU/SRCU API have already changed for proving RCU usage.

    I got the following dmesg when PROVE_RCU=y because we used incorrect API.
    This patch coverts rcu_deference() to srcu_dereference() or family API.

    ===================================================
    [ INFO: suspicious rcu_dereference_check() usage. ]
    ---------------------------------------------------
    arch/x86/kvm/mmu.c:3020 invoked rcu_dereference_check() without protection!

    other info that might help us debug this:

    rcu_scheduler_active = 1, debug_locks = 0
    2 locks held by qemu-system-x86/8550:
    #0: (&kvm->slots_lock){+.+.+.}, at: [] kvm_set_memory_region+0x29/0x50 [kvm]
    #1: (&(&kvm->mmu_lock)->rlock){+.+...}, at: [] kvm_arch_commit_memory_region+0xa6/0xe2 [kvm]

    stack backtrace:
    Pid: 8550, comm: qemu-system-x86 Not tainted 2.6.34-rc4-tip-01028-g939eab1 #27
    Call Trace:
    [] lockdep_rcu_dereference+0xaa/0xb3
    [] kvm_mmu_calculate_mmu_pages+0x44/0x7d [kvm]
    [] kvm_arch_commit_memory_region+0xb7/0xe2 [kvm]
    [] __kvm_set_memory_region+0x636/0x6e2 [kvm]
    [] kvm_set_memory_region+0x37/0x50 [kvm]
    [] vmx_set_tss_addr+0x46/0x5a [kvm_intel]
    [] kvm_arch_vm_ioctl+0x17a/0xcf8 [kvm]
    [] ? unlock_page+0x27/0x2c
    [] ? __do_fault+0x3a9/0x3e1
    [] kvm_vm_ioctl+0x364/0x38d [kvm]
    [] ? up_read+0x23/0x3d
    [] vfs_ioctl+0x32/0xa6
    [] do_vfs_ioctl+0x495/0x4db
    [] ? fget_light+0xc2/0x241
    [] ? do_sys_open+0x104/0x116
    [] ? retint_swapgs+0xe/0x13
    [] sys_ioctl+0x47/0x6a
    [] system_call_fastpath+0x16/0x1b

    Signed-off-by: Lai Jiangshan
    Signed-off-by: Avi Kivity

    Lai Jiangshan
     
  • 600f1ec37   KVM: ia64: fix the error of ioctl KVM_IRQ_LINE if no irq chip ... Browse Code »

    If no irq chip in kernel, ioctl KVM_IRQ_LINE will return -EFAULT.
    But I see in other place such as KVM_[GET|SET]IRQCHIP, -ENXIO is
    return. So this patch used -ENXIO instead of -EFAULT.

    Signed-off-by: Wei Yongjun
    Signed-off-by: Marcelo Tosatti

    Wei Yongjun
     
  • 5c0d0920a   KVM: ia64: fix the error code of ioctl KVM_IA64_VCPU_GET_STACK failure ... Browse Code »

    The ioctl KVM_IA64_VCPU_GET_STACK does not set the error code if
    copy_to_user() fail, and 0 will be return, we should use -EFAULT
    instead of 0 in this case, so this patch fixed it.

    Signed-off-by: Wei Yongjun
    Signed-off-by: Marcelo Tosatti

    Wei Yongjun
     

20 Apr, 2010

1 commit

  • 87bf6e7de   KVM: fix the handling of dirty bitmaps to avoid overflows ... Browse Code »

    Int is not long enough to store the size of a dirty bitmap.

    This patch fixes this problem with the introduction of a wrapper
    function to calculate the sizes of dirty bitmaps.

    Note: in mark_page_dirty(), we have to consider the fact that
    __set_bit() takes the offset as int, not long.

    Signed-off-by: Takuya Yoshikawa
    Signed-off-by: Marcelo Tosatti

    Takuya Yoshikawa
     

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

06 Mar, 2010

1 commit

  • c812a51d1   Merge branch 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm ... Browse Code »

    * 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (145 commits)
    KVM: x86: Add KVM_CAP_X86_ROBUST_SINGLESTEP
    KVM: VMX: Update instruction length on intercepted BP
    KVM: Fix emulate_sys[call, enter, exit]()'s fault handling
    KVM: Fix segment descriptor loading
    KVM: Fix load_guest_segment_descriptor() to inject page fault
    KVM: x86 emulator: Forbid modifying CS segment register by mov instruction
    KVM: Convert kvm->requests_lock to raw_spinlock_t
    KVM: Convert i8254/i8259 locks to raw_spinlocks
    KVM: x86 emulator: disallow opcode 82 in 64-bit mode
    KVM: x86 emulator: code style cleanup
    KVM: Plan obsolescence of kernel allocated slots, paravirt mmu
    KVM: x86 emulator: Add LOCK prefix validity checking
    KVM: x86 emulator: Check CPL level during privilege instruction emulation
    KVM: x86 emulator: Fix popf emulation
    KVM: x86 emulator: Check IOPL level during io instruction emulation
    KVM: x86 emulator: fix memory access during x86 emulation
    KVM: x86 emulator: Add Virtual-8086 mode of emulation
    KVM: x86 emulator: Add group9 instruction decoding
    KVM: x86 emulator: Add group8 instruction decoding
    KVM: do not store wqh in irqfd
    ...

    Trivial conflicts in Documentation/feature-removal-schedule.txt

    Linus Torvalds
     

03 Mar, 2010

1 commit

01 Mar, 2010

8 commits