Eric Lee / smarc-fsl-linux-kernel

26 Feb, 2011

1 commit

21 Oct, 2010

1 commit

13 Aug, 2010

1 commit

  • 26f0cf918   Merge branch 'stable/xen-swiotlb-0.8.6' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen ... Browse Code »

    * 'stable/xen-swiotlb-0.8.6' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
    x86: Detect whether we should use Xen SWIOTLB.
    pci-swiotlb-xen: Add glue code to setup dma_ops utilizing xen_swiotlb_* functions.
    swiotlb-xen: SWIOTLB library for Xen PV guest with PCI passthrough.
    xen/mmu: inhibit vmap aliases rather than trying to clear them out
    vmap: add flag to allow lazy unmap to be disabled at runtime
    xen: Add xen_create_contiguous_region
    xen: Rename the balloon lock
    xen: Allow unprivileged Xen domains to create iomap pages
    xen: use _PAGE_IOMAP in ioremap to do machine mappings

    Fix up trivial conflicts (adding both xen swiotlb and xen pci platform
    driver setup close to each other) in drivers/xen/{Kconfig,Makefile} and
    include/xen/xen-ops.h

    Linus Torvalds
     

23 Jul, 2010

1 commit

08 Jun, 2010

1 commit

  • 08bbc9da9   xen: Add xen_create_contiguous_region ... Browse Code »

    A memory region must be physically contiguous in order to be accessed
    through DMA. This patch adds xen_create_contiguous_region, which
    ensures a region of contiguous virtual memory is also physically
    contiguous.

    Based on Stephen Tweedie's port of the 2.6.18-xen version.

    Remove contiguous_bitmap[] as it's no longer needed.

    Ported from linux-2.6.18-xen.hg 707:e410857fd83c

    [ Impact: add Xen-internal API to make pages phys-contig ]

    Signed-off-by: Alex Nixon
    Signed-off-by: Jeremy Fitzhardinge
    Signed-off-by: Ian Campbell
    Signed-off-by: Konrad Rzeszutek Wilk

    Alex Nixon
     

16 Jul, 2008

1 commit

  • ad55db9fe   xen: add xen_arch_resume()/xen_timer_resume hook for ia64 support ... Browse Code »

    add xen_timer_resume() hook.

    Timer resume should be done after event channel is resumed.
    add xen_arch_resume() hook when ipi becomes usable after resume.
    After resume, some cpu specific resource must be reinitialized
    on ia64 that can't be set by another cpu.

    However available hooks is run once on only one cpu so that ipi has
    to be used.

    During stop_machine_run() ipi can't be used because interrupt is masked.
    So add another hook after stop_machine_run().
    Another approach might be use resume hook which is run by
    device_resume(). However device_resume() may be executed on
    suspend error recovery path.

    So it is necessary to determine whether it is executed on real resume path
    or error recovery path.

    Signed-off-by: Isaku Yamahata
    Cc: Stephen Tweedie
    Cc: Eduardo Habkost
    Cc: Mark McLoughlin
    Signed-off-by: Ingo Molnar

    Isaku Yamahata
     

27 May, 2008

2 commits

  • 359cdd3f8   xen: maintain clock offset over save/restore ... Browse Code »

    Hook into the device model to make sure that timekeeping's resume handler
    is called. This deals with our clocksource's non-monotonicity over the
    save/restore. Explicitly call clock_has_changed() to make sure that
    all the timers get retriggered properly.

    Signed-off-by: Jeremy Fitzhardinge
    Signed-off-by: Thomas Gleixner

    Jeremy Fitzhardinge
     
  • 0e91398f2   xen: implement save/restore ... Browse Code »

    This patch implements Xen save/restore and migration.

    Saving is triggered via xenbus, which is polled in
    drivers/xen/manage.c. When a suspend request comes in, the kernel
    prepares itself for saving by:

    1 - Freeze all processes. This is primarily to prevent any
    partially-completed pagetable updates from confusing the suspend
    process. If CONFIG_PREEMPT isn't defined, then this isn't necessary.

    2 - Suspend xenbus and other devices

    3 - Stop_machine, to make sure all the other vcpus are quiescent. The
    Xen tools require the domain to run its save off vcpu0.

    4 - Within the stop_machine state, it pins any unpinned pgds (under
    construction or destruction), performs canonicalizes various other
    pieces of state (mostly converting mfns to pfns), and finally

    5 - Suspend the domain

    Restore reverses the steps used to save the domain, ending when all
    the frozen processes are thawed.

    Signed-off-by: Jeremy Fitzhardinge
    Signed-off-by: Thomas Gleixner

    Jeremy Fitzhardinge
     

25 Apr, 2008

1 commit