Eric Lee / smarc-fsl-linux-kernel

27 Dec, 2011

2 commits

05 Oct, 2011

1 commit

  • a3e06bbe8   KVM: emulate lapic tsc deadline timer for guest ... Browse Code »

    This patch emulate lapic tsc deadline timer for guest:
    Enumerate tsc deadline timer capability by CPUID;
    Enable tsc deadline timer mode by lapic MMIO;
    Start tsc deadline timer by WRMSR;

    [jan: use do_div()]
    [avi: fix for !irqchip_in_kernel()]
    [marcelo: another fix for !irqchip_in_kernel()]

    Signed-off-by: Liu, Jinsong
    Signed-off-by: Jan Kiszka
    Signed-off-by: Marcelo Tosatti
    Signed-off-by: Avi Kivity

    Liu, Jinsong
     

26 Sep, 2011

3 commits

27 Jul, 2011

1 commit

  • 60063497a   atomic: use <linux/atomic.h> ... Browse Code »

    This allows us to move duplicated code in
    (atomic_inc_not_zero() for now) to

    Signed-off-by: Arun Sharma
    Reviewed-by: Eric Dumazet
    Cc: Ingo Molnar
    Cc: David Miller
    Cc: Eric Dumazet
    Acked-by: Mike Frysinger
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arun Sharma
     

18 Mar, 2011

2 commits

12 Jan, 2011

1 commit

  • 83bcacb1a   KVM: Avoid double interrupt injection with vapic ... Browse Code »

    After an interrupt injection, the PPR changes, and we have to reflect that
    into the vapic. This causes a KVM_REQ_EVENT to be set, which causes the
    whole interrupt injection routine to be run again (harmlessly).

    Optimize by only setting KVM_REQ_EVENT if the ppr was lowered; otherwise
    there is no chance that a new injection is needed.

    Signed-off-by: Avi Kivity

    Avi Kivity
     

25 Oct, 2010

1 commit

  • 1765a1fe5   Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm ... Browse Code »

    * 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (321 commits)
    KVM: Drop CONFIG_DMAR dependency around kvm_iommu_map_pages
    KVM: Fix signature of kvm_iommu_map_pages stub
    KVM: MCE: Send SRAR SIGBUS directly
    KVM: MCE: Add MCG_SER_P into KVM_MCE_CAP_SUPPORTED
    KVM: fix typo in copyright notice
    KVM: Disable interrupts around get_kernel_ns()
    KVM: MMU: Avoid sign extension in mmu_alloc_direct_roots() pae root address
    KVM: MMU: move access code parsing to FNAME(walk_addr) function
    KVM: MMU: audit: check whether have unsync sps after root sync
    KVM: MMU: audit: introduce audit_printk to cleanup audit code
    KVM: MMU: audit: unregister audit tracepoints before module unloaded
    KVM: MMU: audit: fix vcpu's spte walking
    KVM: MMU: set access bit for direct mapping
    KVM: MMU: cleanup for error mask set while walk guest page table
    KVM: MMU: update 'root_hpa' out of loop in PAE shadow path
    KVM: x86 emulator: Eliminate compilation warning in x86_decode_insn()
    KVM: x86: Fix constant type in kvm_get_time_scale
    KVM: VMX: Add AX to list of registers clobbered by guest switch
    KVM guest: Move a printk that's using the clock before it's ready
    KVM: x86: TSC catchup mode
    ...

    Linus Torvalds
     

24 Oct, 2010

2 commits

  • 9611c1877   KVM: fix typo in copyright notice ... Browse Code »

    Fix typo in copyright notice.

    Signed-off-by: Nicolas Kaiser
    Signed-off-by: Marcelo Tosatti

    Nicolas Kaiser
     
  • 3842d135f   KVM: Check for pending events before attempting injection ... Browse Code »

    Instead of blindly attempting to inject an event before each guest entry,
    check for a possible event first in vcpu->requests. Sites that can trigger
    event injection are modified to set KVM_REQ_EVENT:

    - interrupt, nmi window opening
    - ppr updates
    - i8259 output changes
    - local apic irr changes
    - rflags updates
    - gif flag set
    - event set on exit

    This improves non-injecting entry performance, and sets the stage for
    non-atomic injection.

    Signed-off-by: Avi Kivity

    Avi Kivity
     

23 Sep, 2010

1 commit

01 Aug, 2010

4 commits

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
     

01 Mar, 2010

1 commit

25 Jan, 2010

1 commit

  • a5d36f82c   KVM: Fix race between APIC TMR and IRR ... Browse Code »

    When we queue an interrupt to the local apic, we set the IRR before the TMR.
    The vcpu can pick up the IRR and inject the interrupt before setting the TMR,
    and perhaps even EOI it, causing incorrect behaviour.

    The race is really insignificant since it can only occur on the first
    interrupt (usually following interrupts will not change TMR), but it's better
    closed than open.

    Fixed by reordering setting the TMR vs IRR.

    Cc: stable@kernel.org
    Signed-off-by: Avi Kivity
    Signed-off-by: Marcelo Tosatti

    Avi Kivity
     

27 Dec, 2009

1 commit

03 Dec, 2009

3 commits

16 Oct, 2009

1 commit

04 Oct, 2009

1 commit

10 Sep, 2009

13 commits