Eric Lee / smarc-fsl-linux-kernel

25 May, 2012

1 commit

  • 07acfc2a9   Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm ... Browse Code »

    Pull KVM changes from Avi Kivity:
    "Changes include additional instruction emulation, page-crossing MMIO,
    faster dirty logging, preventing the watchdog from killing a stopped
    guest, module autoload, a new MSI ABI, and some minor optimizations
    and fixes. Outside x86 we have a small s390 and a very large ppc
    update.

    Regarding the new (for kvm) rebaseless workflow, some of the patches
    that were merged before we switch trees had to be rebased, while
    others are true pulls. In either case the signoffs should be correct
    now."

    Fix up trivial conflicts in Documentation/feature-removal-schedule.txt
    arch/powerpc/kvm/book3s_segment.S and arch/x86/include/asm/kvm_para.h.

    I suspect the kvm_para.h resolution ends up doing the "do I have cpuid"
    check effectively twice (it was done differently in two different
    commits), but better safe than sorry ;)

    * 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (125 commits)
    KVM: make asm-generic/kvm_para.h have an ifdef __KERNEL__ block
    KVM: s390: onereg for timer related registers
    KVM: s390: epoch difference and TOD programmable field
    KVM: s390: KVM_GET/SET_ONEREG for s390
    KVM: s390: add capability indicating COW support
    KVM: Fix mmu_reload() clash with nested vmx event injection
    KVM: MMU: Don't use RCU for lockless shadow walking
    KVM: VMX: Optimize %ds, %es reload
    KVM: VMX: Fix %ds/%es clobber
    KVM: x86 emulator: convert bsf/bsr instructions to emulate_2op_SrcV_nobyte()
    KVM: VMX: unlike vmcs on fail path
    KVM: PPC: Emulator: clean up SPR reads and writes
    KVM: PPC: Emulator: clean up instruction parsing
    kvm/powerpc: Add new ioctl to retreive server MMU infos
    kvm/book3s: Make kernel emulated H_PUT_TCE available for "PR" KVM
    KVM: PPC: bookehv: Fix r8/r13 storing in level exception handler
    KVM: PPC: Book3S: Enable IRQs during exit handling
    KVM: PPC: Fix PR KVM on POWER7 bare metal
    KVM: PPC: Fix stbux emulation
    KVM: PPC: bookehv: Use lwz/stw instead of PPC_LL/PPC_STL for 32-bit fields
    ...

    Linus Torvalds
     

18 May, 2012

1 commit

  • 1526bf9cc   KVM: s390: add capability indicating COW support ... Browse Code »

    Currently qemu/kvm on s390 uses a guest mapping that does not
    allow the guest backing page table to be write-protected to
    support older systems. On those older systems a host write
    protection fault will be delivered to the guest.

    Newer systems allow to write-protect the guest backing memory
    and let the fault be delivered to the host, thus allowing COW.

    Use a capability bit to tell qemu if that is possible.

    Signed-off-by: Christian Borntraeger
    Acked-by: Heiko Carstens
    Signed-off-by: Marcelo Tosatti

    Christian Borntraeger
     

16 May, 2012

1 commit

  • 0cd2f6201   s390/memory hotplug: initialize storage keys ... Browse Code »

    Add missing storage key initialization when memory comes online.
    Didn't hurt until now, since the kernel always uses access key 0.

    However for debugging purposes we sometimes use a different key
    and it might be good if everything is properly initialized...

    Signed-off-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Heiko Carstens
     

29 Mar, 2012

2 commits

  • 0195c0024   Merge tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/sc… ... Browse Code »
    92

    …m/linux/kernel/git/dhowells/linux-asm_system

    Pull "Disintegrate and delete asm/system.h" from David Howells:
    "Here are a bunch of patches to disintegrate asm/system.h into a set of
    separate bits to relieve the problem of circular inclusion
    dependencies.

    I've built all the working defconfigs from all the arches that I can
    and made sure that they don't break.

    The reason for these patches is that I recently encountered a circular
    dependency problem that came about when I produced some patches to
    optimise get_order() by rewriting it to use ilog2().

    This uses bitops - and on the SH arch asm/bitops.h drags in
    asm-generic/get_order.h by a circuituous route involving asm/system.h.

    The main difficulty seems to be asm/system.h. It holds a number of
    low level bits with no/few dependencies that are commonly used (eg.
    memory barriers) and a number of bits with more dependencies that
    aren't used in many places (eg. switch_to()).

    These patches break asm/system.h up into the following core pieces:

    (1) asm/barrier.h

    Move memory barriers here. This already done for MIPS and Alpha.

    (2) asm/switch_to.h

    Move switch_to() and related stuff here.

    (3) asm/exec.h

    Move arch_align_stack() here. Other process execution related bits
    could perhaps go here from asm/processor.h.

    (4) asm/cmpxchg.h

    Move xchg() and cmpxchg() here as they're full word atomic ops and
    frequently used by atomic_xchg() and atomic_cmpxchg().

    (5) asm/bug.h

    Move die() and related bits.

    (6) asm/auxvec.h

    Move AT_VECTOR_SIZE_ARCH here.

    Other arch headers are created as needed on a per-arch basis."

    Fixed up some conflicts from other header file cleanups and moving code
    around that has happened in the meantime, so David's testing is somewhat
    weakened by that. We'll find out anything that got broken and fix it..

    * tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits)
    Delete all instances of asm/system.h
    Remove all #inclusions of asm/system.h
    Add #includes needed to permit the removal of asm/system.h
    Move all declarations of free_initmem() to linux/mm.h
    Disintegrate asm/system.h for OpenRISC
    Split arch_align_stack() out from asm-generic/system.h
    Split the switch_to() wrapper out of asm-generic/system.h
    Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h
    Create asm-generic/barrier.h
    Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h
    Disintegrate asm/system.h for Xtensa
    Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt]
    Disintegrate asm/system.h for Tile
    Disintegrate asm/system.h for Sparc
    Disintegrate asm/system.h for SH
    Disintegrate asm/system.h for Score
    Disintegrate asm/system.h for S390
    Disintegrate asm/system.h for PowerPC
    Disintegrate asm/system.h for PA-RISC
    Disintegrate asm/system.h for MN10300
    ...

    Linus Torvalds
     
  • a0616cdeb   Disintegrate asm/system.h for S390 ... Browse Code »

    Disintegrate asm/system.h for S390.

    Signed-off-by: David Howells
    cc: linux-s390@vger.kernel.org

    David Howells
     

24 Mar, 2012

1 commit

30 Oct, 2011

1 commit

  • b50511e41   [S390] cleanup psw related bits and pieces ... Browse Code »

    Split out addressing mode bits from PSW_BASE_BITS, rename PSW_BASE_BITS
    to PSW_MASK_BASE, get rid of psw_user32_bits, remove unused function
    enabled_wait(), introduce PSW_MASK_USER, and drop PSW_MASK_MERGE macros.
    Change psw_kernel_bits / psw_user_bits to contain only the bits that
    are always set in the respective mode.

    Signed-off-by: Martin Schwidefsky

    Martin Schwidefsky
     

24 Aug, 2011

1 commit

10 May, 2011

1 commit

24 Mar, 2010

1 commit

  • 9c95258c0   [S390] sclp: avoid 64 bit division ... Browse Code »

    Avoid 64 bit division to fix this compile error on 32 bit:
    drivers/s390/char/sclp_cmd.c:711: undefined reference to `__udivdi3'

    Also move the whole arch_get_memory_phys_device function to the
    memory hotplug related functions.

    Signed-off-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Heiko Carstens
     

18 Mar, 2010

1 commit

  • 57b552ba0   memory hotplug/s390: set phys_device ... Browse Code »

    Implement arch specific arch_get_memory_phys_device function and
    initialize phys_device for each memory section. That way we finally can
    tell which piece of memory belongs to which physical device.

    This makes s390's /sys/devices/system/memory/memoryX/phys_device display
    the correct thing?

    Signed-off-by: Heiko Carstens
    Cc: Dave Hansen
    Cc: Gerald Schaefer
    Cc: KAMEZAWA Hiroyuki
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Heiko Carstens
     

16 Dec, 2009

1 commit

07 Dec, 2009

1 commit

16 Jun, 2009

1 commit

19 Feb, 2009

1 commit

  • 23d75d9ca   [S390] fix "mem=" handling in case of standby memory ... Browse Code »

    Standby memory detected with the sclp interface gets always registered
    with add_memory calls without considering the limitationt that the
    "mem=" kernel paramater implies.
    So fix this and only register standby memory that is below the specified
    limit.
    This fixes zfcpdump since it uses "mem=32M". In case there is appr.
    2GB standby memory present all of usable memory would be used for the
    struct pages needed for standby memory.

    Signed-off-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Heiko Carstens
     

25 Dec, 2008

1 commit

15 Nov, 2008

1 commit

01 Aug, 2008

1 commit

14 Jul, 2008

2 commits

26 Jan, 2008

3 commits

  • 48483b329   [S390] Get rid of additional_cpus kernel parameter. ... Browse Code »

    It caused only a lot of confusion. From now on cpu hotplug of up to
    NR_CPUS will work by default. If somebody wants to limit that then
    the possible_cpus parameter can be used.

    Signed-off-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Heiko Carstens
     
  • 4b28a8fe7   [S390] sclp: convert channel path configure code to use sync interface. ... Browse Code »

    Signed-off-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Heiko Carstens
     
  • 08d079682   [S390] Standby cpu activation/deactivation. ... Browse Code »

    Add a new interface so that cpus can be put into standby state and
    configured state.
    Only offline cpus can be put into standby state or configured state.
    For that the new percpu sysfs attribute "configure" must be used.
    To put a cpu in standby state a "0" must be written to the attribute.
    In order to switch it into configured state a "1" must be written to
    the attribute.
    Only cpus in configured state can be brought online.
    In addition this patch introduces a static mapping of physical to
    logical cpus. As a result only the sysfs directories of present cpus
    will be created. To scan for new cpus the new sysfs attribute "rescan"
    must be used.
    Writing to /sys/devices/system/cpu/rescan will trigger a rescan of
    cpus and will create directories for new cpus.

    On IPL only configured cpus will be used. And on reboot/shutdown all
    cpus will remain in their current state (configured/standby).

    Signed-off-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Heiko Carstens