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When building with 48-bit VAs and 16K page configuration, it's possible
to get the following warning when building the arm64 page table dumping
code:
arch/arm64/mm/dump.c: In function ‘walk_pud’:
arch/arm64/mm/dump.c:274:102: warning: right shift count >= width of type [-Wshift-count-overflow]
This is because pud_offset(pgd, 0) performs a shift to the right by 36
while the value 0 has the type 'int' by default, therefore 32-bit.
This patch modifies all the p*_offset() uses in arch/arm64/mm/dump.c to
use 0UL for the address argument.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Literal loads of virtual addresses are subject to runtime relocation when
CONFIG_RELOCATABLE=y, and given that the relocation routines run with the
MMU and caches enabled, literal loads of relocated values performed with
the MMU off are not guaranteed to return the latest value unless the
memory covering the literal is cleaned to the PoC explicitly.
So defer the literal load until after the MMU has been enabled, just like
we do for primary_switch() and secondary_switch() in head.S.
Fixes: 1e48ef7fcc37 ("arm64: add support for building vmlinux as a relocatable PIE binary")
Cc: <stable@vger.kernel.org> # 4.6+
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
enabled, disabling the latter leads to the following build error on
arm64:
arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
the arm64_acpi_numa_init() definition.
Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- support for nr_cpus= command line argument (maxcpus was previously
changed to allow secondary CPUs to be hot-plugged)
- ARM PMU interrupt handling fix
- fix potential TLB conflict in the hibernate code
- improved handling of EL1 instruction aborts (better error reporting)
- removal of useless jprobes code for stack saving/restoring
- defconfig updates
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: defconfig: enable CONFIG_LOCALVERSION_AUTO
arm64: defconfig: add options for virtualization and containers
arm64: hibernate: handle allocation failures
arm64: hibernate: avoid potential TLB conflict
arm64: Handle el1 synchronous instruction aborts cleanly
arm64: Remove stack duplicating code from jprobes
drivers/perf: arm-pmu: Fix handling of SPI lacking "interrupt-affinity" property
drivers/perf: arm-pmu: convert arm_pmu_mutex to spinlock
arm64: Support hard limit of cpu count by nr_cpus
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When CONFIG_LOCALVERSION_AUTO is disabled, the version string is
just a tag name (or with a '+' appended if HEAD is not a tagged
commit).
During the development (and especially when git-bisecting), longer
version string would be helpful to identify the commit we are running.
This is a default y option, so drop the unset to enable it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Enable options commonly needed by popular virtualization
and container applications. Use modules when possible to
avoid too much overhead for users not interested.
- add namespace and cgroup options needed
- add seccomp - optional, but enhances Qemu etc
- bridge, nat, veth, macvtap and multicast for routing
guests and containers
- btfrs and overlayfs modules for container COW backends
- while near it, make fuse a module instead of built-in.
Generated with make saveconfig and dropping unrelated spurious
change hunks while commiting. bloat-o-meter old-vmlinux vmlinux:
add/remove: 905/390 grow/shrink: 767/229 up/down: 183513/-94861 (88652)
....
Total: Before=10515408, After=10604060, chg +0.84%
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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In create_safe_exec_page(), we create a copy of the hibernate exit text,
along with some page tables to map this via TTBR0. We then install the
new tables in TTBR0.
In swsusp_arch_resume() we call create_safe_exec_page() before trying a
number of operations which may fail (e.g. copying the linear map page
tables). If these fail, we bail out of swsusp_arch_resume() and return
an error code, but leave TTBR0 as-is. Subsequently, the core hibernate
code will call free_basic_memory_bitmaps(), which will free all of the
memory allocations we made, including the page tables installed in
TTBR0.
Thus, we may have TTBR0 pointing at dangling freed memory for some
period of time. If the hibernate attempt was triggered by a user
requesting a hibernate test via the reboot syscall, we may return to
userspace with the clobbered TTBR0 value.
Avoid these issues by reorganising swsusp_arch_resume() such that we
have no failure paths after create_safe_exec_page(). We also add a check
that the zero page allocation succeeded, matching what we have for other
allocations.
Fixes: 82869ac57b5d ("arm64: kernel: Add support for hibernate/suspend-to-disk")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: James Morse <james.morse@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org> # 4.7+
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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In create_safe_exec_page we install a set of global mappings in TTBR0,
then subsequently invalidate TLBs. While TTBR0 points at the zero page,
and the TLBs should be free of stale global entries, we may have stale
ASID-tagged entries (e.g. from the EFI runtime services mappings) for
the same VAs. Per the ARM ARM these ASID-tagged entries may conflict
with newly-allocated global entries, and we must follow a
Break-Before-Make approach to avoid issues resulting from this.
This patch reworks create_safe_exec_page to invalidate TLBs while the
zero page is still in place, ensuring that there are no potential
conflicts when the new TTBR0 value is installed. As a single CPU is
online while this code executes, we do not need to perform broadcast TLB
maintenance, and can call local_flush_tlb_all(), which also subsumes
some barriers. The remaining assembly is converted to use write_sysreg()
and isb().
Other than this, we safely manipulate TTBRs in the hibernate dance. The
code we install as part of the new TTBR0 mapping (the hibernated
kernel's swsusp_arch_suspend_exit) installs a zero page into TTBR1,
invalidates TLBs, then installs its preferred value. Upon being restored
to the middle of swsusp_arch_suspend, the new image will call
__cpu_suspend_exit, which will call cpu_uninstall_idmap, installing the
zero page in TTBR0 and invalidating all TLB entries.
Fixes: 82869ac57b5d ("arm64: kernel: Add support for hibernate/suspend-to-disk")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: James Morse <james.morse@arm.com>
Tested-by: James Morse <james.morse@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org> # 4.7+
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Executing from a non-executable area gives an ugly message:
lkdtm: Performing direct entry EXEC_RODATA
lkdtm: attempting ok execution at ffff0000084c0e08
lkdtm: attempting bad execution at ffff000008880700
Bad mode in Synchronous Abort handler detected on CPU2, code 0x8400000e -- IABT (current EL)
CPU: 2 PID: 998 Comm: sh Not tainted 4.7.0-rc2+ #13
Hardware name: linux,dummy-virt (DT)
task: ffff800077e35780 ti: ffff800077970000 task.ti: ffff800077970000
PC is at lkdtm_rodata_do_nothing+0x0/0x8
LR is at execute_location+0x74/0x88
The 'IABT (current EL)' indicates the error but it's a bit cryptic
without knowledge of the ARM ARM. There is also no indication of the
specific address which triggered the fault. The increase in kernel
page permissions makes hitting this case more likely as well.
Handling the case in the vectors gives a much more familiar looking
error message:
lkdtm: Performing direct entry EXEC_RODATA
lkdtm: attempting ok execution at ffff0000084c0840
lkdtm: attempting bad execution at ffff000008880680
Unable to handle kernel paging request at virtual address ffff000008880680
pgd = ffff8000089b2000
[ffff000008880680] *pgd=00000000489b4003, *pud=0000000048904003, *pmd=0000000000000000
Internal error: Oops: 8400000e [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 997 Comm: sh Not tainted 4.7.0-rc1+ #24
Hardware name: linux,dummy-virt (DT)
task: ffff800077f9f080 ti: ffff800008a1c000 task.ti: ffff800008a1c000
PC is at lkdtm_rodata_do_nothing+0x0/0x8
LR is at execute_location+0x74/0x88
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"A couple of bug fixes have come in for v4.8 so far. Since the first
few were originally meant to go into -rc1 (but didn't get sent in time
for travel reasons), the branch is unfortunately based on top of a
commit in the middle of the merge window rather than -rc1.
Content-wise we have:
- a fix for the last remaining broken build in kernelci, getting
mach-shmobile to build again with SMP disabled
- a fix for a realview regression that broke real hardware but not
the qemu model that everyone uses in practice (needed for v4.7 as
well)
- a merge conflict fix for Tegra that also broke v4.7
- two Kconfig fixes for arm64 build regressions
- a couple of arm32 build warning fixes (all harmless)
- fix the RTC on Exynos7 Espresso (which apparently never worked
right)"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
Merge tag 'pxa-fixes-v4.8' of https://github.com/rjarzmik/linux into randconfig-4.8
arm64: Kconfig: select HISILICON_IRQ_MBIGEN only if PCI is selected
arm64: Kconfig: select ALPINE_MSI only if PCI is selected
ARM: dts: realview: Fix PBX-A9 cache description
ARM: tegra: fix erroneous address in dts
ARM: dts: add syscon compatible string for AP syscon
ARM: dts: add syscon compatible string for CP syscon
ARM: oxnas: select reset controller framework
ARM: hide mach-*/ include for ARM_SINGLE_ARMV7M
ARM: don't include removed directories
Revert "ARM: aspeed: adapt defconfigs for new CONFIG_PRINTK_TIME"
ARM: shmobile: don't call platform_can_secondary_boot on UP
MAINTAINER: alpine: add a mailing list
ARM: do away with final ARCH_REQUIRE_GPIOLIB
arm64: dts: Fix RTC by providing rtc_src clock
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Because the arm64 calling standard allows stacked function arguments to be
anywhere in the stack frame, do not attempt to duplicate the stack frame for
jprobes handler functions.
Documentation changes to describe this issue have been broken out into a
separate patch in order to simultaneously address them in other
architecture(s).
Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Even when PCI is disabled, ARCH_HISI selects HISILICON_IRQ_MBIGEN
triggerring the following config warning:
warning: (ARM64 && HISILICON_IRQ_MBIGEN) selects ARM_GIC_V3_ITS which
has unmet direct dependencies (PCI && PCI_MSI)
This patch makes selection of HISILICON_IRQ_MBIGEN conditional on PCI.
Cc: Ma Jun <majun258@huawei.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Even when PCI is disabled, ARCH_ALPINE selects ALPINE_MSI triggerring
the following config warning:
warning: (ARCH_ALPINE) selects ALPINE_MSI which has unmet direct
dependencies (PCI)
This patch makes selection of ALPINE_MSI conditional on PCI.
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Enable the hard limit of cpu count by set boot options nr_cpus=x
on arm64, and make a minor change about message when total number
of cpu exceeds the limit.
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reported-by: Shiyuan Hu <hushiyuan@huawei.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull usercopy protection from Kees Cook:
"Tbhis implements HARDENED_USERCOPY verification of copy_to_user and
copy_from_user bounds checking for most architectures on SLAB and
SLUB"
* tag 'usercopy-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
mm: SLUB hardened usercopy support
mm: SLAB hardened usercopy support
s390/uaccess: Enable hardened usercopy
sparc/uaccess: Enable hardened usercopy
powerpc/uaccess: Enable hardened usercopy
ia64/uaccess: Enable hardened usercopy
arm64/uaccess: Enable hardened usercopy
ARM: uaccess: Enable hardened usercopy
x86/uaccess: Enable hardened usercopy
mm: Hardened usercopy
mm: Implement stack frame object validation
mm: Add is_migrate_cma_page
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Pull more KVM updates from Paolo Bonzini:
- ARM bugfix and MSI injection support
- x86 nested virt tweak and OOPS fix
- Simplify pvclock code (vdso bits acked by Andy Lutomirski).
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
nvmx: mark ept single context invalidation as supported
nvmx: remove comment about missing nested vpid support
KVM: lapic: fix access preemption timer stuff even if kernel_irqchip=off
KVM: documentation: fix KVM_CAP_X2APIC_API information
x86: vdso: use __pvclock_read_cycles
pvclock: introduce seqcount-like API
arm64: KVM: Set cpsr before spsr on fault injection
KVM: arm: vgic-irqfd: Workaround changing kvm_set_routing_entry prototype
KVM: arm/arm64: Enable MSI routing
KVM: arm/arm64: Enable irqchip routing
KVM: Move kvm_setup_default/empty_irq_routing declaration in arch specific header
KVM: irqchip: Convey devid to kvm_set_msi
KVM: Add devid in kvm_kernel_irq_routing_entry
KVM: api: Pass the devid in the msi routing entry
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
- fix HugeTLB leak due to CoW and PTE_RDONLY mismatch
- avoid accessing unmapped FDT fields when checking validity
- correctly account for vDSO AUX entry in ARCH_DLINFO
- fix kallsyms with absolute expressions in linker script
- kill unnecessary symbol-based relocs in vmlinux
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix copy-on-write referencing in HugeTLB
arm64: mm: avoid fdt_check_header() before the FDT is fully mapped
arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux
arm64: vmlinux.lds: make __rela_offset and __dynsym_offset ABSOLUTE
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The dma-mapping core and the implementations do not change the DMA
attributes passed by pointer. Thus the pointer can point to const data.
However the attributes do not have to be a bitfield. Instead unsigned
long will do fine:
1. This is just simpler. Both in terms of reading the code and setting
attributes. Instead of initializing local attributes on the stack
and passing pointer to it to dma_set_attr(), just set the bits.
2. It brings safeness and checking for const correctness because the
attributes are passed by value.
Semantic patches for this change (at least most of them):
virtual patch
virtual context
@r@
identifier f, attrs;
@@
f(...,
- struct dma_attrs *attrs
+ unsigned long attrs
, ...)
{
...
}
@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)
and
// Options: --all-includes
virtual patch
virtual context
@r@
identifier f, attrs;
type t;
@@
t f(..., struct dma_attrs *attrs);
@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)
Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Acked-by: Mark Salter <msalter@redhat.com> [c6x]
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris]
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm]
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp]
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core]
Acked-by: David Vrabel <david.vrabel@citrix.com> [xen]
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb]
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon]
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390]
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32]
Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc]
Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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set_pte_at(.) will set or unset the PTE_RDONLY hardware bit before
writing the entry to the table.
This can cause problems with the copy-on-write logic in hugetlb_cow:
*) hugetlb_cow(.) called to handle a write fault on read only pte,
*) Before the copy-on-write updates the new page table a call is
made to pte_same(huge_ptep_get(ptep), pte)), to check for a race,
*) Because set_pte_at(.) changed the pte, *ptep != pte, and the
hugetlb_cow(.) code erroneously assumes that it lost the race,
*) The new page is subsequently freed without being used.
On arm64 this problem only becomes apparent when we apply:
67961f9 mm/hugetlb: fix huge page reserve accounting for private
mappings
When one runs the libhugetlbfs test suite, there are allocation errors
and hugetlbfs pages become erroneously locked in memory as reserved.
(There is a high HugePages_Rsvd: count).
In this patch we introduce pte_same which ignores the PTE_RDONLY bit,
allowing for the libhugetlbfs test suite to pass as expected and
without leaking any reserved HugeTLB pages.
Reported-by: Huang Shijie <shijie.huang@arm.com>
Signed-off-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/ARM Changes for v4.8 - Take 2
Includes GSI routing support to go along with the new VGIC and a small fix that
has been cooking in -next for a while.
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Highlights:
- ARM64 support for ACPI host bridges
- new drivers for Axis ARTPEC-6 and Marvell Aardvark
- new pci_alloc_irq_vectors() interface for MSI-X, MSI, legacy INTx
- pci_resource_to_user() cleanup (more to come)
Detailed summary:
Enumeration:
- Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
- Add parent device field to ECAM struct pci_config_window (Jayachandran C)
- Add generic MCFG table handling (Tomasz Nowicki)
- Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
- Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)
Resource management:
- Add devm_request_pci_bus_resources() (Bjorn Helgaas)
- Unify pci_resource_to_user() declarations (Bjorn Helgaas)
- Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
- Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
- Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
- Ignore write combining when mapping I/O port space (Bjorn Helgaas)
- Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
- Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
- Support I/O resources when parsing host bridge resources (Jayachandran C)
- Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
- Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
- Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
- Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
- Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
- Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
- Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
- Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)
PCI device hotplug:
- Allow additional bus numbers for hotplug bridges (Keith Busch)
- Ignore interrupts during D3cold (Lukas Wunner)
Power management:
- Enforce type casting for pci_power_t (Andy Shevchenko)
- Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
- Put PCIe ports into D3 during suspend (Mika Westerberg)
- Power on bridges before scanning new devices (Mika Westerberg)
- Runtime resume bridge before rescan (Mika Westerberg)
- Add runtime PM support for PCIe ports (Mika Westerberg)
- Remove redundant check of pcie_set_clkpm (Shawn Lin)
Virtualization:
- Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
- Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
- Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
- Add ACS quirk for Solarflare SFC9220 (Edward Cree)
MSI:
- Fix PCI_MSI dependencies (Arnd Bergmann)
- Add pci_msix_desc_addr() helper (Christoph Hellwig)
- Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
- Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
- Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
- Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)
Error Handling:
- Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
- Remove DPC tristate module option (Keith Busch)
- Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)
Generic host bridge driver:
- Select IRQ_DOMAIN (Arnd Bergmann)
- Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
ACPI host bridge driver:
- Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
- Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
- Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
- Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)
Altera host bridge driver:
- Check link status before retrain link (Ley Foon Tan)
- Poll for link up status after retraining the link (Ley Foon Tan)
Axis ARTPEC-6 host bridge driver:
- Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
- Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
- Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)
Intel VMD host bridge driver:
- Use lock save/restore in interrupt enable path (Jon Derrick)
- Select device dma ops to override (Keith Busch)
- Initialize list item in IRQ disable (Keith Busch)
- Use x86_vector_domain as parent domain (Keith Busch)
- Separate MSI and MSI-X vector sharing (Keith Busch)
Marvell Aardvark host bridge driver:
- Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
- Add Aardvark PCI host controller driver (Thomas Petazzoni)
- Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)
Microsoft Hyper-V host bridge driver:
- Fix interrupt cleanup path (Cathy Avery)
- Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
- Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
NVIDIA Tegra host bridge driver:
- Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
- Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
- Use lower-case hex consistently for register definitions (Thierry Reding)
- Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
- Stop setting pcibios_min_mem (Thierry Reding)
Renesas R-Car host bridge driver:
- Drop gen2 dummy I/O port region (Bjorn Helgaas)
TI DRA7xx host bridge driver:
- Fix return value in case of error (Christophe JAILLET)
Xilinx AXI host bridge driver:
- Fix return value in case of error (Christophe JAILLET)
Miscellaneous:
- Make bus_attr_resource_alignment static (Ben Dooks)
- Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks)
- MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
- Make host bridge drivers explicitly non-modular (Paul Gortmaker)"
* tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (125 commits)
PCI: xgene: Make explicitly non-modular
PCI: thunder-pem: Make explicitly non-modular
PCI: thunder-ecam: Make explicitly non-modular
PCI: tegra: Make explicitly non-modular
PCI: rcar-gen2: Make explicitly non-modular
PCI: rcar: Make explicitly non-modular
PCI: mvebu: Make explicitly non-modular
PCI: layerscape: Make explicitly non-modular
PCI: keystone: Make explicitly non-modular
PCI: hisi: Make explicitly non-modular
PCI: generic: Make explicitly non-modular
PCI: designware-plat: Make it explicitly non-modular
PCI: artpec6: Make explicitly non-modular
PCI: armada8k: Make explicitly non-modular
PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency
PCI: Add ACS quirk for Solarflare SFC9220
arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700
PCI: aardvark: Add Aardvark PCI host controller driver
dt-bindings: add DT binding for the Aardvark PCIe controller
PCI: tegra: Program PADS_REFCLK_CFG* registers with per-SoC values
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild updates from Michal Marek:
- GCC plugin support by Emese Revfy from grsecurity, with a fixup from
Kees Cook. The plugins are meant to be used for static analysis of
the kernel code. Two plugins are provided already.
- reduction of the gcc commandline by Arnd Bergmann.
- IS_ENABLED / IS_REACHABLE macro enhancements by Masahiro Yamada
- bin2c fix by Michael Tautschnig
- setlocalversion fix by Wolfram Sang
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
gcc-plugins: disable under COMPILE_TEST
kbuild: Abort build on bad stack protector flag
scripts: Fix size mismatch of kexec_purgatory_size
kbuild: make samples depend on headers_install
Kbuild: don't add obj tree in additional includes
Kbuild: arch: look for generated headers in obtree
Kbuild: always prefix objtree in LINUXINCLUDE
Kbuild: avoid duplicate include path
Kbuild: don't add ../../ to include path
vmlinux.lds.h: replace config_enabled() with IS_ENABLED()
kconfig.h: allow to use IS_{ENABLE,REACHABLE} in macro expansion
kconfig.h: use already defined macros for IS_REACHABLE() define
export.h: use __is_defined() to check if __KSYM_* is defined
kconfig.h: use __is_defined() to check if MODULE is defined
kbuild: setlocalversion: print error to STDERR
Add sancov plugin
Add Cyclomatic complexity GCC plugin
GCC plugin infrastructure
Shared library support
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Pull KVM updates from Paolo Bonzini:
- ARM: GICv3 ITS emulation and various fixes. Removal of the
old VGIC implementation.
- s390: support for trapping software breakpoints, nested
virtualization (vSIE), the STHYI opcode, initial extensions
for CPU model support.
- MIPS: support for MIPS64 hosts (32-bit guests only) and lots
of cleanups, preliminary to this and the upcoming support for
hardware virtualization extensions.
- x86: support for execute-only mappings in nested EPT; reduced
vmexit latency for TSC deadline timer (by about 30%) on Intel
hosts; support for more than 255 vCPUs.
- PPC: bugfixes.
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (302 commits)
KVM: PPC: Introduce KVM_CAP_PPC_HTM
MIPS: Select HAVE_KVM for MIPS64_R{2,6}
MIPS: KVM: Reset CP0_PageMask during host TLB flush
MIPS: KVM: Fix ptr->int cast via KVM_GUEST_KSEGX()
MIPS: KVM: Sign extend MFC0/RDHWR results
MIPS: KVM: Fix 64-bit big endian dynamic translation
MIPS: KVM: Fail if ebase doesn't fit in CP0_EBase
MIPS: KVM: Use 64-bit CP0_EBase when appropriate
MIPS: KVM: Set CP0_Status.KX on MIPS64
MIPS: KVM: Make entry code MIPS64 friendly
MIPS: KVM: Use kmap instead of CKSEG0ADDR()
MIPS: KVM: Use virt_to_phys() to get commpage PFN
MIPS: Fix definition of KSEGX() for 64-bit
KVM: VMX: Add VMCS to CPU's loaded VMCSs before VMPTRLD
kvm: x86: nVMX: maintain internal copy of current VMCS
KVM: PPC: Book3S HV: Save/restore TM state in H_CEDE
KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures
KVM: arm64: vgic-its: Simplify MAPI error handling
KVM: arm64: vgic-its: Make vgic_its_cmd_handle_mapi similar to other handlers
KVM: arm64: vgic-its: Turn device_id validation into generic ID validation
...
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Add RTC source clock as Exynos7 needs source (32.768KHz) clock
for RTC block. Without this currently S3C RTC driver probe is broken
on this SoC.
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull 64-bit ARM DT updates from Olof Johansson:
"Just as the 32-bit contents, the 64-bit device tree branch also
contains a number of additions this release cycle.
New platforms:
- LG LG1313
- Mediatek MT6755
- Renesas r8a7796
- Broadcom 2837
Other platforms with larger updates are:
- Nvidia X1 platforms (USB 3.0, regulators, display subsystem)
- Mediatek MT8173 (display subsystem added)
- Rockchip RK3399 (a lot of new peripherals)
- ARM Juno reference implementation (SCPI power domains, coresight,
thermal)"
* tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (118 commits)
arm64: tegra: Enable HDMI on Jetson TX1
arm64: tegra: Add sor1_src clock
arm64: tegra: Add XUSB powergates on Tegra210
arm64: tegra: Add DPAUX pinctrl bindings
arm64: tegra: Add ACONNECT bus node for Tegra210
arm64: tegra: Add audio powergate node for Tegra210
arm64: tegra: Add regulators for Tegra210 Smaug
arm64: tegra: Correct Tegra210 XUSB mailbox interrupt
arm64: tegra: Enable XUSB controller on Jetson TX1
arm64: tegra: Enable debug serial on Jetson TX1
arm64: tegra: Add Tegra210 XUSB controller
arm64: tegra: Add Tegra210 XUSB pad controller
arm64: tegra: Add DSI panel on Jetson TX1
arm64: tegra: p2597: Add SDMMC power supplies
arm64: tegra: Add PMIC support on Jetson TX1
Revert "ARM64: DTS: meson-gxbb: switch ethernet to real clock"
arm64: dts: hi6220: Add pl031 RTC support
arm64: dts: r8a7796/salvator-x: Enable watchdog timer
arm64: dts: r8a7796: Add RWDT node
arm64: dts: r8a7796: Use SYSC "always-on" PM Domain
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Driver updates for ARM SoCs.
A slew of changes this release cycle. The reset driver tree, that we
merge through arm-soc for historical reasons, is also sizable this
time around.
Among the changes:
- clps711x: Treewide changes to compatible strings, merged here for simplicity.
- Qualcomm: SCM firmware driver cleanups, move to platform driver
- ux500: Major cleanups, removal of old mach-specific infrastructure.
- Atmel external bus memory driver
- Move of brcmstb platform to the rest of bcm
- PMC driver updates for tegra, various fixes and improvements
- Samsung platform driver updates to support 64-bit Exynos platforms
- Reset controller cleanups moving to devm_reset_controller_register() APIs
- Reset controller driver for Amlogic Meson
- Reset controller driver for Hisilicon hi6220
- ARM SCPI power domain support"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (100 commits)
ARM: ux500: consolidate base platform files
ARM: ux500: move soc_id driver to drivers/soc
ARM: ux500: call ux500_setup_id later
ARM: ux500: consolidate soc_device code in id.c
ARM: ux500: remove cpu_is_u* helpers
ARM: ux500: use CLK_OF_DECLARE()
ARM: ux500: move l2x0 init to .init_irq
mfd: db8500 stop passing around platform data
ASoC: ab8500-codec: remove platform data based probe
ARM: ux500: move ab8500_regulator_plat_data into driver
ARM: ux500: remove unused regulator data
soc: raspberrypi-power: add CONFIG_OF dependency
firmware: scpi: add CONFIG_OF dependency
video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip
input: clps711x-keypad: Changing the compatibility string to match with the smallest supported chip
pwm: clps711x: Changing the compatibility string to match with the smallest supported chip
serial: clps711x: Changing the compatibility string to match with the smallest supported chip
irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip
clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip
clk: clps711x: Changing the compatibility string to match with the smallest supported chip
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull 64-bit ARM SoC updates from Olof Johansson:
"Changes to platform code for 64-bit ARM platforms.
Nearly all of these are defconfig updates to enable new drivers or old
drivers still used on these 64-bit platforms.
Added platforms for this release are:
- Broadcom BCM2837
- Renesas R8A7796"
* tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
arm64: remove duplicate PWM entry in defconfig
arm64: Update default configuration
arm64: defconfig: Enable more IP blocks for Exynos7 and Exynos5433
arm64: amlogic: select gxbb clk driver
arm64: defconfig: Enable S2MPS11 clock and S3C RTC driver
arm64: marvell: enable Armada 3700 clock drivers
arm64: defconfig: enable msm8996 pinctrl support
arm64: defconfig: Enable qcom msm8996 clk drivers
arm: defconfig: Enable PM8941 pwr key
arm64: defconfig: enable stmmac and realtek PHY as modules
arm64: Kconfig: select PM{,_GENERIC_DOMAINS} for ARCH_VEXPRESS
arm64: defconfig: enable SENSORS_ARM_SCPI
arm64: defconfig: enable Generic on-chip SRAM driver
arm64: configs: enable PCIe driver for Armada 7K/8K
arm64: Add platform selection for BCM2835.
arm64: defconfig: disable plain NEON implementation of AES
arm64: Allow for different DMA and CPU bus offsets
arm64: defconfig: enable Renesas R8A7796 SoC
arm64: defconfig: Enable Cadence MACB/GEM support
ARM64: Kconfig: Select the Amlogic Meson pin controller driver
...
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Conflicts:
drivers/nvme/host/pci.c
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'pci/host-hv', 'pci/host-vmd' and 'pci/host-xilinx' into next
* pci/host-aardvark:
arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700
PCI: aardvark: Add Aardvark PCI host controller driver
dt-bindings: add DT binding for the Aardvark PCIe controller
* pci/host-altera:
PCI: altera: Poll for link up status after retraining the link
PCI: altera: Check link status before retrain link
PCI: altera: Reorder read/write functions
* pci/host-dra7xx:
PCI: dra7xx: Fix return value in case of error
* pci/host-hv:
PCI: hv: Fix interrupt cleanup path
PCI: hv: Handle all pending messages in hv_pci_onchannelcallback()
PCI: hv: Don't leak buffer in hv_pci_onchannelcallback()
* pci/host-vmd:
x86/PCI: VMD: Separate MSI and MSI-X vector sharing
x86/PCI: VMD: Use x86_vector_domain as parent domain
x86/PCI: VMD: Use lock save/restore in interrupt enable path
x86/PCI: VMD: Initialize list item in IRQ disable
x86/PCI: VMD: Select device dma ops to override
* pci/host-xilinx:
PCI: xilinx: Fix return value in case of error
Manually apply changes from pci/demodularize-hosts and
pci/host-request-windows to drivers/pci/host/pci-aardvark.c
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* pci/resource:
unicore32/PCI: Remove pci=firmware command line parameter handling
ARM/PCI: Remove arch-specific pcibios_enable_device()
ARM64/PCI: Remove arch-specific pcibios_enable_device()
MIPS/PCI: Claim bus resources on PCI_PROBE_ONLY set-ups
ARM/PCI: Claim bus resources on PCI_PROBE_ONLY set-ups
PCI: generic: Claim bus resources on PCI_PROBE_ONLY set-ups
PCI: Add generic pci_bus_claim_resources()
alx: Use pci_(request|release)_mem_regions
ethernet/intel: Use pci_(request|release)_mem_regions
GenWQE: Use pci_(request|release)_mem_regions
lpfc: Use pci_(request|release)_mem_regions
NVMe: Use pci_(request|release)_mem_regions
PCI: Add helpers to request/release memory and I/O regions
PCI: Extending pci=resource_alignment to specify device/vendor IDs
sparc/PCI: Implement pci_resource_to_user() with pcibios_resource_to_bus()
powerpc/pci: Implement pci_resource_to_user() with pcibios_resource_to_bus()
microblaze/PCI: Implement pci_resource_to_user() with pcibios_resource_to_bus()
PCI: Unify pci_resource_to_user() declarations
microblaze/PCI: Remove useless __pci_mmap_set_pgprot()
powerpc/pci: Remove __pci_mmap_set_pgprot()
PCI: Ignore write combining when mapping I/O port space
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'pci/pm' and 'pci/virtualization' into next
* pci/aspm:
PCI/ASPM: Remove redundant check of pcie_set_clkpm
* pci/dpc:
PCI: Remove DPC tristate module option
PCI: Bind DPC to Root Ports as well as Downstream Ports
PCI: Fix whitespace in struct dpc_dev
PCI: Convert Downstream Port Containment driver to use devm_* functions
* pci/hotplug:
PCI: Allow additional bus numbers for hotplug bridges
* pci/misc:
PCI: Include <asm/dma.h> for isa_dma_bridge_buggy
PCI: Make bus_attr_resource_alignment static
MAINTAINERS: Add file patterns for PCI device tree bindings
PCI: Fix comment typo
* pci/msi:
PCI/MSI: irqchip: Fix PCI_MSI dependencies
* pci/pm:
PCI: pciehp: Ignore interrupts during D3cold
PCI: Document connection between pci_power_t and hardware PM capability
PCI: Add runtime PM support for PCIe ports
ACPI / hotplug / PCI: Runtime resume bridge before rescan
PCI: Power on bridges before scanning new devices
PCI: Put PCIe ports into D3 during suspend
PCI: Don't clear d3cold_allowed for PCIe ports
PCI / PM: Enforce type casting for pci_power_t
* pci/virtualization:
PCI: Add ACS quirk for Solarflare SFC9220
PCI: Add DMA alias quirk for Adaptec 3805
PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset
PCI: Add function 1 DMA alias quirk for Marvell 88SE9182
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We need to set cpsr before determining the spsr bank, as the bank
depends on the target exception level of the injection, not the
current mode of the vcpu. Normally this is one in the same (EL1),
but not when we manage to trap an EL0 fault. It still doesn't really
matter for the 64-bit EL0 case though, as vcpu_spsr() unconditionally
uses the EL1 bank for that. However the 32-bit EL0 case gets fun, as
that path will lead to the BUG() in vcpu_spsr32().
This patch fixes the assignment order and also modifies some white
space in order to better group pairs of lines that have strict order.
Cc: stable@vger.kernel.org # v4.5
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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As reported by Zijun, the fdt_check_header() call in __fixmap_remap_fdt()
is not safe since it is not guaranteed that the FDT header is mapped
completely. Due to the minimum alignment of 8 bytes, the only fields we
can assume to be mapped are 'magic' and 'totalsize'.
Since the OF layer is in charge of validating the FDT image, and we are
only interested in making reasonably sure that the size field contains
a meaningful value, replace the fdt_check_header() call with an explicit
comparison of the magic field's value against the expected value.
Cc: <stable@vger.kernel.org>
Reported-by: Zijun Hu <zijun_hu@htc.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
- remove most of_platform_populate() calls in arch code. Now the DT
core code calls it in the default case and platforms only need to
call it if they have special needs
- use pr_fmt on all the DT core print statements
- CoreSight binding doc improvements to block name descriptions
- add dt_to_config script which can parse dts files and list
corresponding kernel config options
- fix memory leak hit with a PowerMac DT
- correct a bunch of STMicro compatible strings to use the correct
vendor prefix
- fix DA9052 PMIC binding doc to match what is actually used in dts
files
* tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (35 commits)
documentation: da9052: Update regulator bindings names to match DA9052/53 DTS expectations
xtensa: Partially Revert "xtensa: Remove unnecessary of_platform_populate with default match table"
xtensa: Fix build error due to missing include file
MIPS: ath79: Add missing include file
Fix spelling errors in Documentation/devicetree
ARM: dts: fix STMicroelectronics compatible strings
powerpc/dts: fix STMicroelectronics compatible strings
Documentation: dt: i2c: use correct STMicroelectronics vendor prefix
scripts/dtc: dt_to_config - kernel config options for a devicetree
of: fdt: mark unflattened tree as detached
of: overlay: add resolver error prints
coresight: document binding acronyms
Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties
of: use pr_fmt prefix for all console printing
of/irq: Mark initialised interrupt controllers as populated
of: fix memory leak related to safe_name()
Revert "of/platform: export of_default_bus_match_table"
of: unittest: use of_platform_default_populate() to populate default bus
memory: omap-gpmc: use of_platform_default_populate() to populate default bus
bus: uniphier-system-bus: use of_platform_default_populate() to populate default bus
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
"Highlights:
- TPM core and driver updates/fixes
- IPv6 security labeling (CALIPSO)
- Lots of Apparmor fixes
- Seccomp: remove 2-phase API, close hole where ptrace can change
syscall #"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (156 commits)
apparmor: fix SECURITY_APPARMOR_HASH_DEFAULT parameter handling
tpm: Add TPM 2.0 support to the Nuvoton i2c driver (NPCT6xx family)
tpm: Factor out common startup code
tpm: use devm_add_action_or_reset
tpm2_i2c_nuvoton: add irq validity check
tpm: read burstcount from TPM_STS in one 32-bit transaction
tpm: fix byte-order for the value read by tpm2_get_tpm_pt
tpm_tis_core: convert max timeouts from msec to jiffies
apparmor: fix arg_size computation for when setprocattr is null terminated
apparmor: fix oops, validate buffer size in apparmor_setprocattr()
apparmor: do not expose kernel stack
apparmor: fix module parameters can be changed after policy is locked
apparmor: fix oops in profile_unpack() when policy_db is not present
apparmor: don't check for vmalloc_addr if kvzalloc() failed
apparmor: add missing id bounds check on dfa verification
apparmor: allow SYS_CAP_RESOURCE to be sufficient to prlimit another task
apparmor: use list_next_entry instead of list_entry_next
apparmor: fix refcount race when finding a child profile
apparmor: fix ref count leak when profile sha1 hash is read
apparmor: check that xindex is in trans_table bounds
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull smp hotplug updates from Thomas Gleixner:
"This is the next part of the hotplug rework.
- Convert all notifiers with a priority assigned
- Convert all CPU_STARTING/DYING notifiers
The final removal of the STARTING/DYING infrastructure will happen
when the merge window closes.
Another 700 hundred line of unpenetrable maze gone :)"
* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits)
timers/core: Correct callback order during CPU hot plug
leds/trigger/cpu: Move from CPU_STARTING to ONLINE level
powerpc/numa: Convert to hotplug state machine
arm/perf: Fix hotplug state machine conversion
irqchip/armada: Avoid unused function warnings
ARC/time: Convert to hotplug state machine
clocksource/atlas7: Convert to hotplug state machine
clocksource/armada-370-xp: Convert to hotplug state machine
clocksource/exynos_mct: Convert to hotplug state machine
clocksource/arm_global_timer: Convert to hotplug state machine
rcu: Convert rcutree to hotplug state machine
KVM/arm/arm64/vgic-new: Convert to hotplug state machine
smp/cfd: Convert core to hotplug state machine
x86/x2apic: Convert to CPU hotplug state machine
profile: Convert to hotplug state machine
timers/core: Convert to hotplug state machine
hrtimer: Convert to hotplug state machine
x86/tboot: Convert to hotplug state machine
arm64/armv8 deprecated: Convert to hotplug state machine
hwtracing/coresight-etm4x: Convert to hotplug state machine
...
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AT_VECTOR_SIZE_ARCH should be defined with the maximum number of
NEW_AUX_ENT entries that ARCH_DLINFO can contain, but it wasn't defined
for arm64 at all even though ARCH_DLINFO will contain one NEW_AUX_ENT
for the VDSO address.
This shouldn't be a problem as AT_VECTOR_SIZE_BASE includes space for
AT_BASE_PLATFORM which arm64 doesn't use, but lets define it now and add
the comment above ARCH_DLINFO as found in several other architectures to
remind future modifiers of ARCH_DLINFO to keep AT_VECTOR_SIZE_ARCH up to
date.
Fixes: f668cd1673aa ("arm64: ELF definitions")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Will Deacon <will.deacon@arm.com>
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The linker routines that we rely on to produce a relocatable PIE binary
treat it as a shared ELF object in some ways, i.e., it emits symbol based
R_AARCH64_ABS64 relocations into the final binary since doing so would be
appropriate when linking a shared library that is subject to symbol
preemption. (This means that an executable can override certain symbols
that are exported by a shared library it is linked with, and that the
shared library *must* update all its internal references as well, and point
them to the version provided by the executable.)
Symbol preemption does not occur for OS hosted PIE executables, let alone
for vmlinux, and so we would prefer to get rid of these symbol based
relocations. This would allow us to simplify the relocation routines, and
to strip the .dynsym, .dynstr and .hash sections from the binary. (Note
that these are tiny, and are placed in the .init segment, but they clutter
up the vmlinux binary.)
Note that these R_AARCH64_ABS64 relocations are only emitted for absolute
references to symbols defined in the linker script, all other relocatable
quantities are covered by anonymous R_AARCH64_RELATIVE relocations that
simply list the offsets to all 64-bit values in the binary that need to be
fixed up based on the offset between the link time and run time addresses.
Fortunately, GNU ld has a -Bsymbolic option, which is intended for shared
libraries to allow them to ignore symbol preemption, and unconditionally
bind all internal symbol references to its own definitions. So set it for
our PIE binary as well, and get rid of the asoociated sections and the
relocation code that processes them.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
[will: fixed conflict with __dynsym_offset linker script entry]
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Due to the untyped KIMAGE_VADDR constant, the linker may not notice
that the __rela_offset and __dynsym_offset expressions are absolute
values (i.e., are not subject to relocation). This does not matter for
KASLR, but it does confuse kallsyms in relative mode, since it uses
the lowest non-absolute symbol address as the anchor point, and expects
all other symbol addresses to be within 4 GB of it.
Fix this by qualifying these expressions as ABSOLUTE() explicitly.
Fixes: 0cd3defe0af4 ("arm64: kernel: perform relocation processing from ID map")
Cc: <stable@vger.kernel.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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When booting an ACPI enabled kernel with 'mem=x', there is the
possibility that ACPI data regions from the firmware will lie above the
memory limit. Ordinarily these will be removed by
memblock_enforce_memory_limit(.).
Unfortunately, this means that these regions will then be mapped by
acpi_os_ioremap(.) as device memory (instead of normal) thus unaligned
accessess will then provoke alignment faults.
In this patch we adopt memblock_mem_limit_remove_map instead, and this
preserves these ACPI data regions (marked NOMAP) thus ensuring that
these regions are not mapped as device memory.
For example, below is an alignment exception observed on ARM platform
when booting the kernel with 'acpi=on mem=8G':
...
Unable to handle kernel paging request at virtual address ffff0000080521e7
pgd = ffff000008aa0000
[ffff0000080521e7] *pgd=000000801fffe003, *pud=000000801fffd003, *pmd=000000801fffc003, *pte=00e80083ff1c1707
Internal error: Oops: 96000021 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.7.0-rc3-next-20160616+ #172
Hardware name: AMD Overdrive/Supercharger/Default string, BIOS ROD1001A 02/09/2016
task: ffff800001ef0000 ti: ffff800001ef8000 task.ti: ffff800001ef8000
PC is at acpi_ns_lookup+0x520/0x734
LR is at acpi_ns_lookup+0x4a4/0x734
pc : [<ffff0000083b8b10>] lr : [<ffff0000083b8a94>] pstate: 60000045
sp : ffff800001efb8b0
x29: ffff800001efb8c0 x28: 000000000000001b
x27: 0000000000000001 x26: 0000000000000000
x25: ffff800001efb9e8 x24: ffff000008a10000
x23: 0000000000000001 x22: 0000000000000001
x21: ffff000008724000 x20: 000000000000001b
x19: ffff0000080521e7 x18: 000000000000000d
x17: 00000000000038ff x16: 0000000000000002
x15: 0000000000000007 x14: 0000000000007fff
x13: ffffff0000000000 x12: 0000000000000018
x11: 000000001fffd200 x10: 00000000ffffff76
x9 : 000000000000005f x8 : ffff000008725fa8
x7 : ffff000008a8df70 x6 : ffff000008a8df70
x5 : ffff000008a8d000 x4 : 0000000000000010
x3 : 0000000000000010 x2 : 000000000000000c
x1 : 0000000000000006 x0 : 0000000000000000
...
acpi_ns_lookup+0x520/0x734
acpi_ds_load1_begin_op+0x174/0x4fc
acpi_ps_build_named_op+0xf8/0x220
acpi_ps_create_op+0x208/0x33c
acpi_ps_parse_loop+0x204/0x838
acpi_ps_parse_aml+0x1bc/0x42c
acpi_ns_one_complete_parse+0x1e8/0x22c
acpi_ns_parse_table+0x8c/0x128
acpi_ns_load_table+0xc0/0x1e8
acpi_tb_load_namespace+0xf8/0x2e8
acpi_load_tables+0x7c/0x110
acpi_init+0x90/0x2c0
do_one_initcall+0x38/0x12c
kernel_init_freeable+0x148/0x1ec
kernel_init+0x10/0xec
ret_from_fork+0x10/0x40
Code: b9009fbc 2a00037b 36380057 3219037b (b9400260)
---[ end trace 03381e5eb0a24de4 ]---
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
With 'efi=debug', we can see those ACPI regions loaded by firmware on
that board as:
efi: 0x0083ff185000-0x0083ff1b4fff [Reserved | | | | | | | | |WB|WT|WC|UC]*
efi: 0x0083ff1b5000-0x0083ff1c2fff [ACPI Reclaim Memory| | | | | | | | |WB|WT|WC|UC]*
efi: 0x0083ff223000-0x0083ff224fff [ACPI Memory NVS | | | | | | | | |WB|WT|WC|UC]*
Link: http://lkml.kernel.org/r/1468475036-5852-3-git-send-email-dennis.chen@arm.com
Acked-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Dennis Chen <dennis.chen@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Kaly Xin <kaly.xin@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull networking updates from David Miller:
1) Unified UDP encapsulation offload methods for drivers, from
Alexander Duyck.
2) Make DSA binding more sane, from Andrew Lunn.
3) Support QCA9888 chips in ath10k, from Anilkumar Kolli.
4) Several workqueue usage cleanups, from Bhaktipriya Shridhar.
5) Add XDP (eXpress Data Path), essentially running BPF programs on RX
packets as soon as the device sees them, with the option to mirror
the packet on TX via the same interface. From Brenden Blanco and
others.
6) Allow qdisc/class stats dumps to run lockless, from Eric Dumazet.
7) Add VLAN support to b53 and bcm_sf2, from Florian Fainelli.
8) Simplify netlink conntrack entry layout, from Florian Westphal.
9) Add ipv4 forwarding support to mlxsw spectrum driver, from Ido
Schimmel, Yotam Gigi, and Jiri Pirko.
10) Add SKB array infrastructure and convert tun and macvtap over to it.
From Michael S Tsirkin and Jason Wang.
11) Support qdisc packet injection in pktgen, from John Fastabend.
12) Add neighbour monitoring framework to TIPC, from Jon Paul Maloy.
13) Add NV congestion control support to TCP, from Lawrence Brakmo.
14) Add GSO support to SCTP, from Marcelo Ricardo Leitner.
15) Allow GRO and RPS to function on macsec devices, from Paolo Abeni.
16) Support MPLS over IPV4, from Simon Horman.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits)
xgene: Fix build warning with ACPI disabled.
be2net: perform temperature query in adapter regardless of its interface state
l2tp: Correctly return -EBADF from pppol2tp_getname.
net/mlx5_core/health: Remove deprecated create_singlethread_workqueue
net: ipmr/ip6mr: update lastuse on entry change
macsec: ensure rx_sa is set when validation is disabled
tipc: dump monitor attributes
tipc: add a function to get the bearer name
tipc: get monitor threshold for the cluster
tipc: make cluster size threshold for monitoring configurable
tipc: introduce constants for tipc address validation
net: neigh: disallow transition to NUD_STALE if lladdr is unchanged in neigh_update()
MAINTAINERS: xgene: Add driver and documentation path
Documentation: dtb: xgene: Add MDIO node
dtb: xgene: Add MDIO node
drivers: net: xgene: ethtool: Use phy_ethtool_gset and sset
drivers: net: xgene: Use exported functions
drivers: net: xgene: Enable MDIO driver
drivers: net: xgene: Add backward compatibility
drivers: net: phy: xgene: Add MDIO driver
...
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from David Vrabel:
"Features and fixes for 4.8-rc0:
- ACPI support for guests on ARM platforms.
- Generic steal time support for arm and x86.
- Support cases where kernel cpu is not Xen VCPU number (e.g., if
in-guest kexec is used).
- Use the system workqueue instead of a custom workqueue in various
places"
* tag 'for-linus-4.8-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (47 commits)
xen: add static initialization of steal_clock op to xen_time_ops
xen/pvhvm: run xen_vcpu_setup() for the boot CPU
xen/evtchn: use xen_vcpu_id mapping
xen/events: fifo: use xen_vcpu_id mapping
xen/events: use xen_vcpu_id mapping in events_base
x86/xen: use xen_vcpu_id mapping when pointing vcpu_info to shared_info
x86/xen: use xen_vcpu_id mapping for HYPERVISOR_vcpu_op
xen: introduce xen_vcpu_id mapping
x86/acpi: store ACPI ids from MADT for future usage
x86/xen: update cpuid.h from Xen-4.7
xen/evtchn: add IOCTL_EVTCHN_RESTRICT
xen-blkback: really don't leak mode property
xen-blkback: constify instance of "struct attribute_group"
xen-blkfront: prefer xenbus_scanf() over xenbus_gather()
xen-blkback: prefer xenbus_scanf() over xenbus_gather()
xen: support runqueue steal time on xen
arm/xen: add support for vm_assist hypercall
xen: update xen headers
xen-pciback: drop superfluous variables
xen-pciback: short-circuit read path used for merging write values
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- Kexec support for arm64
- Kprobes support
- Expose MIDR_EL1 and REVIDR_EL1 CPU identification registers to sysfs
- Trapping of user space cache maintenance operations and emulation in
the kernel (CPU errata workaround)
- Clean-up of the early page tables creation (kernel linear mapping,
EFI run-time maps) to avoid splitting larger blocks (e.g. pmds) into
smaller ones (e.g. ptes)
- VDSO support for CLOCK_MONOTONIC_RAW in clock_gettime()
- ARCH_HAS_KCOV enabled for arm64
- Optimise IP checksum helpers
- SWIOTLB optimisation to only allocate/initialise the buffer if the
available RAM is beyond the 32-bit mask
- Properly handle the "nosmp" command line argument
- Fix for the initialisation of the CPU debug state during early boot
- vdso-offsets.h build dependency workaround
- Build fix when RANDOMIZE_BASE is enabled with MODULES off
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (64 commits)
arm64: arm: Fix-up the removal of the arm64 regs_query_register_name() prototype
arm64: Only select ARM64_MODULE_PLTS if MODULES=y
arm64: mm: run pgtable_page_ctor() on non-swapper translation table pages
arm64: mm: make create_mapping_late() non-allocating
arm64: Honor nosmp kernel command line option
arm64: Fix incorrect per-cpu usage for boot CPU
arm64: kprobes: Add KASAN instrumentation around stack accesses
arm64: kprobes: Cleanup jprobe_return
arm64: kprobes: Fix overflow when saving stack
arm64: kprobes: WARN if attempting to step with PSTATE.D=1
arm64: debug: remove unused local_dbg_{enable, disable} macros
arm64: debug: remove redundant spsr manipulation
arm64: debug: unmask PSTATE.D earlier
arm64: localise Image objcopy flags
arm64: ptrace: remove extra define for CPSR's E bit
kprobes: Add arm64 case in kprobe example module
arm64: Add kernel return probes support (kretprobes)
arm64: Add trampoline code for kretprobes
arm64: kprobes instruction simulation support
arm64: Treat all entry code as non-kprobe-able
...
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Commit 0a8ea52c3eb1 ("arm64: Add HAVE_REGS_AND_STACK_ACCESS_API
feature") inadvertently removed the arch/arm prototype instead of the
arm64 one introduced by the original patch. There should not be any
bisection issues since this function is not called from anywhere else
(it could as well be removed from arch/arm at some point).
Fixes: 0a8ea52c3eb1 ("arm64: Add HAVE_REGS_AND_STACK_ACCESS_API feature")
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Merge updates from Andrew Morton:
- a few misc bits
- ocfs2
- most(?) of MM
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (125 commits)
thp: fix comments of __pmd_trans_huge_lock()
cgroup: remove unnecessary 0 check from css_from_id()
cgroup: fix idr leak for the first cgroup root
mm: memcontrol: fix documentation for compound parameter
mm: memcontrol: remove BUG_ON in uncharge_list
mm: fix build warnings in <linux/compaction.h>
mm, thp: convert from optimistic swapin collapsing to conservative
mm, thp: fix comment inconsistency for swapin readahead functions
thp: update Documentation/{vm/transhuge,filesystems/proc}.txt
shmem: split huge pages beyond i_size under memory pressure
thp: introduce CONFIG_TRANSPARENT_HUGE_PAGECACHE
khugepaged: add support of collapse for tmpfs/shmem pages
shmem: make shmem_inode_info::lock irq-safe
khugepaged: move up_read(mmap_sem) out of khugepaged_alloc_page()
thp: extract khugepaged from mm/huge_memory.c
shmem, thp: respect MADV_{NO,}HUGEPAGE for file mappings
shmem: add huge pages support
shmem: get_unmapped_area align huge page
shmem: prepare huge= mount option and sysfs knob
mm, rmap: account shmem thp pages
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- new framework support for HDMI CEC and remote control support
- new encoding codec driver for Mediatek SoC
- new frontend driver: helene tuner
- added support for NetUp almost universal devices, with supports
DVB-C/S/S2/T/T2 and ISDB-T
- the mn88472 frontend driver got promoted from staging
- a new driver for RCar video input
- some soc_camera legacy drivers got removed: timb, omap1, mx2, mx3
- lots of driver cleanups, improvements and fixups
* tag 'media/v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (377 commits)
[media] cec: always check all_device_types and features
[media] cec: poll should check if there is room in the tx queue
[media] vivid: support monitor all mode
[media] cec: fix test for unconfigured adapter in main message loop
[media] cec: limit the size of the transmit queue
[media] cec: zero unused msg part after msg->len
[media] cec: don't set fh to NULL in CEC_TRANSMIT
[media] cec: clear all status fields before transmit and always fill in sequence
[media] cec: CEC_RECEIVE overwrote the timeout field
[media] cxd2841er: Reading SNR for DVB-C added
[media] cxd2841er: Reading BER and UCB for DVB-C added
[media] cxd2841er: fix switch-case for DVB-C
[media] cxd2841er: fix signal strength scale for ISDB-T
[media] cxd2841er: adjust the dB scale for DVB-C
[media] cxd2841er: provide signal strength for DVB-C
[media] cxd2841er: fix BER report via DVBv5 stats API
[media] mb86a20s: apply mask to val after checking for read failure
[media] airspy: fix error logic during device register
[media] s5p-cec/TODO: add TODO item
[media] cec/TODO: drop comment about sphinx documentation
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"The new feaures here are the support for ACPI overlays (allowing ACPI
tables to be loaded at any time from EFI variables or via configfs)
and the LPI (Low-Power Idle) support. Also notable is the ACPI-based
NUMA support for ARM64.
Apart from that we have two new drivers, for the DPTF (Dynamic Power
and Thermal Framework) power participant device and for the Intel
Broxton WhiskeyCove PMIC, some more PMIC-related changes, support for
the Boot Error Record Table (BERT) in APEI and support for
platform-initiated graceful shutdown.
Plus two new pieces of documentation and usual assorted fixes and
cleanups in quite a few places.
Specifics:
- Support for ACPI SSDT overlays allowing Secondary System
Description Tables (SSDTs) to be loaded at any time from EFI
variables or via configfs (Octavian Purdila, Mika Westerberg).
- Support for the ACPI LPI (Low-Power Idle) feature introduced in
ACPI 6.0 and allowing processor idle states to be represented in
ACPI tables in a hierarchical way (with the help of Processor
Container objects) and support for ACPI idle states management on
ARM64, based on LPI (Sudeep Holla).
- General improvements of ACPI support for NUMA and ARM64 support for
ACPI-based NUMA (Hanjun Guo, David Daney, Robert Richter).
- General improvements of the ACPI table upgrade mechanism and ARM64
support for that feature (Aleksey Makarov, Jon Masters).
- Support for the Boot Error Record Table (BERT) in APEI and
improvements of kernel messages printed by the error injection code
(Huang Ying, Borislav Petkov).
- New driver for the Intel Broxton WhiskeyCove PMIC operation region
and support for the REGS operation region on Broxton, PMIC code
cleanups (Bin Gao, Felipe Balbi, Paul Gortmaker).
- New driver for the power participant device which is part of the
Dynamic Power and Thermal Framework (DPTF) and DPTF-related code
reorganization (Srinivas Pandruvada).
- Support for the platform-initiated graceful shutdown feature
introduced in ACPI 6.1 (Prashanth Prakash).
- ACPI button driver update related to lid input events generated
automatically on initialization and system resume that have been
problematic for some time (Lv Zheng).
- ACPI EC driver cleanups (Lv Zheng).
- Documentation of the ACPICA release automation process and the
in-kernel ACPI AML debugger (Lv Zheng).
- New blacklist entry and two fixes for the ACPI backlight driver
(Alex Hung, Arvind Yadav, Ralf Gerbig).
- Cleanups of the ACPI pci_slot driver (Joe Perches, Paul Gortmaker).
- ACPI CPPC code changes to make it more robust against possible
defects in ACPI tables and new symbol definitions for PCC (Hoan
Tran).
- System reboot code modification to execute the ACPI _PTS (Prepare
To Sleep) method in addition to _TTS (Ocean He).
- ACPICA-related change to carry out lock ordering checks in ACPICA
if ACPICA debug is enabled in the kernel (Lv Zheng).
- Assorted minor fixes and cleanups (Andy Shevchenko, Baoquan He,
Bhaktipriya Shridhar, Paul Gortmaker, Rafael Wysocki)"
* tag 'acpi-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (71 commits)
ACPI: enable ACPI_PROCESSOR_IDLE on ARM64
arm64: add support for ACPI Low Power Idle(LPI)
drivers: firmware: psci: initialise idle states using ACPI LPI
cpuidle: introduce CPU_PM_CPU_IDLE_ENTER macro for ARM{32, 64}
arm64: cpuidle: drop __init section marker to arm_cpuidle_init
ACPI / processor_idle: Add support for Low Power Idle(LPI) states
ACPI / processor_idle: introduce ACPI_PROCESSOR_CSTATE
ACPI / DPTF: move int340x_thermal.c to the DPTF folder
ACPI / DPTF: Add DPTF power participant driver
ACPI / lpat: make it explicitly non-modular
ACPI / dock: make dock explicitly non-modular
ACPI / PCI: make pci_slot explicitly non-modular
ACPI / PMIC: remove modular references from non-modular code
ACPICA: Linux: Enable ACPI_MUTEX_DEBUG for Linux kernel
ACPI: Rename configfs.c to acpi_configfs.c to prevent link error
ACPI / debugger: Add AML debugger documentation
ACPI: Add documentation describing ACPICA release automation
ACPI: add support for loading SSDTs via configfs
ACPI: add support for configfs
efi / ACPI: load SSTDs from EFI variables
...
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Selecting CONFIG_RANDOMIZE_BASE=y and CONFIG_MODULES=n fails to build
the module PLTs support:
CC arch/arm64/kernel/module-plts.o
/work/Linux/linux-2.6-aarch64/arch/arm64/kernel/module-plts.c: In function ‘module_emit_plt_entry’:
/work/Linux/linux-2.6-aarch64/arch/arm64/kernel/module-plts.c:32:49: error: dereferencing pointer to incomplete type ‘struct module’
This patch selects ARM64_MODULE_PLTS conditionally only if MODULES is
enabled.
Fixes: f80fb3a3d508 ("arm64: add support for kernel ASLR")
Cc: <stable@vger.kernel.org> # 4.6+
Reported-by: Jeff Vander Stoep <jeffv@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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We always have vma->vm_mm around.
Link: http://lkml.kernel.org/r/1466021202-61880-8-git-send-email-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Enables CONFIG_HARDENED_USERCOPY checks on arm64. As done by KASAN in -next,
renames the low-level functions to __arch_copy_*_user() so a static inline
can do additional work before the copy.
Signed-off-by: Kees Cook <keescook@chromium.org>
|
