linux.git/arch/arm64/kernel, branch v3.11

arm64: perf: fix event validation for software group leaders

2013-08-20T11:05:57+00:00

This is a port of c95eb3184ea1 ("ARM: 7809/1: perf: fix event validation
for software group leaders") to arm64, which fixes a panic in the arm64
perf backend found as a result of Vince's fuzzing tool.

Cc: 
Signed-off-by: Will Deacon 
Signed-off-by: Catalin Marinas

arm64: perf: fix array out of bounds access in armpmu_map_hw_event()

2013-08-20T11:05:57+00:00

This is a port of d9f966357b14 ("ARM: 7810/1: perf: Fix array out of
bounds access in armpmu_map_hw_event()") to arm64, which fixes an oops
in the arm64 perf backend found as a result of Vince's fuzzing tool.

Cc: 
Signed-off-by: Will Deacon 
Signed-off-by: Catalin Marinas

arm64: Change kernel stack size to 16K

2013-07-26T12:37:29+00:00

Written by Catalin Marinas, tested by APM on storm platform. This is needed
because of the failures encountered when running SpecWeb benchmark test.

Signed-off-by: Feng Kan 
Acked-by: Kumar Sankaran 
Signed-off-by: Catalin Marinas

arm64: Fix definition of arm_pm_restart to match the declaration

2013-07-23T10:05:10+00:00

Commit ff70130 (arm64: use common reboot infrastructure) converted the
arm_pm_restart declaration to the new reboot infrastructure but missed
the actual definition.

Signed-off-by: Catalin Marinas

Merge tag 'arm64-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

2013-07-19T22:08:53+00:00

Pull arm64 fixes from Catalin Marinas:
 - Post -rc1 update to the common reboot infrastructure.
 - Fixes (user cache maintenance fault handling, !COMPAT compilation,
   CPU online and interrupt hanlding).

* tag 'arm64-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: use common reboot infrastructure
  arm64: mm: don't treat user cache maintenance faults as writes
  arm64: add '#ifdef CONFIG_COMPAT' for aarch32_break_handler()
  arm64: Only enable local interrupts after the CPU is marked online

arm64: use common reboot infrastructure

2013-07-19T14:57:08+00:00

Commit 7b6d864b48d9 (reboot: arm: change reboot_mode to use enum
reboot_mode) changed the way reboot is handled on arm, which has a
direct impact on arm64 as we share the reset driver on the VE platform.

The obvious fix is to move arm64 to use the same infrastructure.

Signed-off-by: Marc Zyngier 
[catalin.marinas@arm.com: removed reboot_mode = REBOOT_HARD default setting]
Signed-off-by: Catalin Marinas

arm64: Only enable local interrupts after the CPU is marked online

2013-07-19T14:49:42+00:00

There is a slight chance that (timer) interrupts are triggered before a
secondary CPU has been marked online with implications on softirq thread
affinity.

Signed-off-by: Catalin Marinas 
Reported-by: Kirill Tkhai

arm64: delete __cpuinit usage from all users

2013-07-14T23:36:52+00:00

The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications.  For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.

After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out.  Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.

Note that some harmless section mismatch warnings may result, since
notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c)
are flagged as __cpuinit  -- so if we remove the __cpuinit from
arch specific callers, we will also get section mismatch warnings.
As an intermediate step, we intend to turn the linux/init.h cpuinit
content into no-ops as early as possible, since that will get rid
of these warnings.  In any case, they are temporary and harmless.

This removes all the arch/arm64 uses of the __cpuinit macros from
all C files.  Currently arm64 does not have any __CPUINIT used in
assembly files.

[1] https://lkml.org/lkml/2013/5/20/589

Cc: Catalin Marinas 
Cc: Will Deacon 
Acked-by: Catalin Marinas 
Signed-off-by: Paul Gortmaker

arm64: KVM: Kconfig integration

2013-07-04T12:40:26+00:00

Finally plug KVM/arm64 into the config system, making it possible
to enable KVM support on AArch64 CPUs.

Signed-off-by: Marc Zyngier 
Signed-off-by: Paolo Bonzini

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

2013-07-03T17:31:38+00:00

Pull ARM64 updates from Catalin Marinas:
 "Main features:
   - KVM and Xen ports to AArch64
   - Hugetlbfs and transparent huge pages support for arm64
   - Applied Micro X-Gene Kconfig entry and dts file
   - Cache flushing improvements

  For arm64 huge pages support, there are x86 changes moving part of
  arch/x86/mm/hugetlbpage.c into mm/hugetlb.c to be re-used by arm64"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: (66 commits)
  arm64: Add initial DTS for APM X-Gene Storm SOC and APM Mustang board
  arm64: Add defines for APM ARMv8 implementation
  arm64: Enable APM X-Gene SOC family in the defconfig
  arm64: Add Kconfig option for APM X-Gene SOC family
  arm64/Makefile: provide vdso_install target
  ARM64: mm: THP support.
  ARM64: mm: Raise MAX_ORDER for 64KB pages and THP.
  ARM64: mm: HugeTLB support.
  ARM64: mm: Move PTE_PROT_NONE bit.
  ARM64: mm: Make PAGE_NONE pages read only and no-execute.
  ARM64: mm: Restore memblock limit when map_mem finished.
  mm: thp: Correct the HPAGE_PMD_ORDER check.
  x86: mm: Remove general hugetlb code from x86.
  mm: hugetlb: Copy general hugetlb code from x86 to mm.
  x86: mm: Remove x86 version of huge_pmd_share.
  mm: hugetlb: Copy huge_pmd_share from x86 to mm.
  arm64: KVM: document kernel object mappings in HYP
  arm64: KVM: MAINTAINERS update
  arm64: KVM: userspace API documentation
  arm64: KVM: enable initialization of a 32bit vcpu
  ...