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2018-04-18arm64: signal: don't force known signals to SIGKILLMark Rutland1-1/+1
Since commit: a7e6f1ca90354a31 ("arm64: signal: Force SIGKILL for unknown signals in force_signal_inject") ... any signal which is not SIGKILL will be upgraded to a SIGKILL be force_signal_inject(). This includes signals we do expect, such as SIGILL triggered by do_undefinstr(). Fix the check to use a logical AND rather than a logical OR, permitting signals whose layout is SIL_FAULT. Fixes: a7e6f1ca90354a31 ("arm64: signal: Force SIGKILL for unknown signals in force_signal_inject") Cc: Will Deacon <will.deacon@arm.com> Reviewed-by: Dave Martin <Dave.Martin@arm.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-04-17arm64: kasan: avoid pfn_to_nid() before page array is initializedMark Rutland1-2/+2
In arm64's kasan_init(), we use pfn_to_nid() to find the NUMA node a span of memory is in, hoping to allocate shadow from the same NUMA node. However, at this point, the page array has not been initialized, and thus this is bogus. Since commit: f165b378bbdf6c8a ("mm: uninitialized struct page poisoning sanity") ... accessing fields of the page array results in a boot time Oops(), highlighting this problem: [ 0.000000] Unable to handle kernel paging request at virtual address dfff200000000000 [ 0.000000] Mem abort info: [ 0.000000] ESR = 0x96000004 [ 0.000000] Exception class = DABT (current EL), IL = 32 bits [ 0.000000] SET = 0, FnV = 0 [ 0.000000] EA = 0, S1PTW = 0 [ 0.000000] Data abort info: [ 0.000000] ISV = 0, ISS = 0x00000004 [ 0.000000] CM = 0, WnR = 0 [ 0.000000] [dfff200000000000] address between user and kernel address ranges [ 0.000000] Internal error: Oops: 96000004 [#1] PREEMPT SMP [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.16.0-07317-gf165b378bbdf #42 [ 0.000000] Hardware name: ARM Juno development board (r1) (DT) [ 0.000000] pstate: 80000085 (Nzcv daIf -PAN -UAO) [ 0.000000] pc : __asan_load8+0x8c/0xa8 [ 0.000000] lr : __dump_page+0x3c/0x3b8 [ 0.000000] sp : ffff2000099b7ca0 [ 0.000000] x29: ffff2000099b7ca0 x28: ffff20000a1762c0 [ 0.000000] x27: ffff7e0000000000 x26: ffff2000099dd000 [ 0.000000] x25: ffff200009a3f960 x24: ffff200008f9c38c [ 0.000000] x23: ffff20000a9d3000 x22: ffff200009735430 [ 0.000000] x21: fffffffffffffffe x20: ffff7e0001e50420 [ 0.000000] x19: ffff7e0001e50400 x18: 0000000000001840 [ 0.000000] x17: ffffffffffff8270 x16: 0000000000001840 [ 0.000000] x15: 0000000000001920 x14: 0000000000000004 [ 0.000000] x13: 0000000000000000 x12: 0000000000000800 [ 0.000000] x11: 1ffff0012d0f89ff x10: ffff10012d0f89ff [ 0.000000] x9 : 0000000000000000 x8 : ffff8009687c5000 [ 0.000000] x7 : 0000000000000000 x6 : ffff10000f282000 [ 0.000000] x5 : 0000000000000040 x4 : fffffffffffffffe [ 0.000000] x3 : 0000000000000000 x2 : dfff200000000000 [ 0.000000] x1 : 0000000000000005 x0 : 0000000000000000 [ 0.000000] Process swapper (pid: 0, stack limit = 0x (ptrval)) [ 0.000000] Call trace: [ 0.000000] __asan_load8+0x8c/0xa8 [ 0.000000] __dump_page+0x3c/0x3b8 [ 0.000000] dump_page+0xc/0x18 [ 0.000000] kasan_init+0x2e8/0x5a8 [ 0.000000] setup_arch+0x294/0x71c [ 0.000000] start_kernel+0xdc/0x500 [ 0.000000] Code: aa0403e0 9400063c 17ffffee d343fc00 (38e26800) [ 0.000000] ---[ end trace 67064f0e9c0cc338 ]--- [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! [ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]--- Let's fix this by using early_pfn_to_nid(), as other architectures do in their kasan init code. Note that early_pfn_to_nid acquires the nid from the memblock array, which we iterate over in kasan_init(), so this should be fine. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Fixes: 39d114ddc6822302 ("arm64: add KASAN support") Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-04-16Merge tag 'kbuild-v4.17-2' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild updates from Masahiro Yamada: - pass HOSTLDFLAGS when compiling single .c host programs - build genksyms lexer and parser files instead of using shipped versions - rename *-asn1.[ch] to *.asn1.[ch] for suffix consistency - let the top .gitignore globally ignore artifacts generated by flex, bison, and asn1_compiler - let the top Makefile globally clean artifacts generated by flex, bison, and asn1_compiler - use safer .SECONDARY marker instead of .PRECIOUS to prevent intermediate files from being removed - support -fmacro-prefix-map option to make __FILE__ a relative path - fix # escaping to prepare for the future GNU Make release - clean up deb-pkg by using debian tools instead of handrolled source/changes generation - improve rpm-pkg portability by supporting kernel-install as a fallback of new-kernel-pkg - extend Kconfig listnewconfig target to provide more information * tag 'kbuild-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kconfig: extend output of 'listnewconfig' kbuild: rpm-pkg: use kernel-install as a fallback for new-kernel-pkg Kbuild: fix # escaping in .cmd files for future Make kbuild: deb-pkg: split generating packaging and build kbuild: use -fmacro-prefix-map to make __FILE__ a relative path kbuild: mark $(targets) as .SECONDARY and remove .PRECIOUS markers kbuild: rename *-asn1.[ch] to *.asn1.[ch] kbuild: clean up *-asn1.[ch] patterns from top-level Makefile .gitignore: move *-asn1.[ch] patterns to the top-level .gitignore kbuild: add %.dtb.S and %.dtb to 'targets' automatically kbuild: add %.lex.c and %.tab.[ch] to 'targets' automatically genksyms: generate lexer and parser during build instead of shipping kbuild: clean up *.lex.c and *.tab.[ch] patterns from top-level Makefile .gitignore: move *.lex.c *.tab.[ch] patterns to the top-level .gitignore kbuild: use HOSTLDFLAGS for single .c executables
2018-04-13Merge tag 'arm64-upstream' of ↵Linus Torvalds10-199/+242
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull more arm64 updates from Will Deacon: "A few late updates to address some issues arising from conflicts with other trees: - Removal of Qualcomm-specific Spectre-v2 mitigation in favour of the generic SMCCC-based firmware call - Fix EL2 hardening capability checking, which was bodged to reduce conflicts with the KVM tree - Add some currently unused assembler macros for managing SIMD registers which will be used by some crypto code in the next merge window" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: assembler: add macros to conditionally yield the NEON under PREEMPT arm64: assembler: add utility macros to push/pop stack frames arm64: Move the content of bpi.S to hyp-entry.S arm64: Get rid of __smccc_workaround_1_hvc_* arm64: capabilities: Rework EL2 vector hardening entry arm64: KVM: Use SMCCC_ARCH_WORKAROUND_1 for Falkor BP hardening
2018-04-11arm64: assembler: add macros to conditionally yield the NEON under PREEMPTArd Biesheuvel2-0/+76
Add support macros to conditionally yield the NEON (and thus the CPU) that may be called from the assembler code. In some cases, yielding the NEON involves saving and restoring a non trivial amount of context (especially in the CRC folding algorithms), and so the macro is split into three, and the code in between is only executed when the yield path is taken, allowing the context to be preserved. The third macro takes an optional label argument that marks the resume path after a yield has been performed. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Dave Martin <Dave.Martin@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-04-11arm64: assembler: add utility macros to push/pop stack framesArd Biesheuvel1-0/+63
We are going to add code to all the NEON crypto routines that will turn them into non-leaf functions, so we need to manage the stack frames. To make this less tedious and error prone, add some macros that take the number of callee saved registers to preserve and the extra size to allocate in the stack frame (for locals) and emit the ldp/stp sequences. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Dave Martin <Dave.Martin@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-04-11arm64: Move the content of bpi.S to hyp-entry.SMarc Zyngier4-91/+65
bpi.S was introduced as we were starting to build the Spectre v2 mitigation framework, and it was rather unclear that it would become strictly KVM specific. Now that the picture is a lot clearer, let's move the content of that file to hyp-entry.S, where it actually belong. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-04-11arm64: Get rid of __smccc_workaround_1_hvc_*Marc Zyngier2-16/+5
The very existence of __smccc_workaround_1_hvc_* is a thinko, as KVM will never use a HVC call to perform the branch prediction invalidation. Even as a nested hypervisor, it would use an SMC instruction. Let's get rid of it. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-04-11arm64: capabilities: Rework EL2 vector hardening entryMarc Zyngier1-9/+11
Since 5e7951ce19ab ("arm64: capabilities: Clean up midr range helpers"), capabilities must be represented with a single entry. If multiple CPU types can use the same capability, then they need to be enumerated in a list. The EL2 hardening stuff (which affects both A57 and A72) managed to escape the conversion in the above patch thanks to the 4.17 merge window. Let's fix it now. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-04-11arm64: KVM: Use SMCCC_ARCH_WORKAROUND_1 for Falkor BP hardeningShanker Donthineni6-86/+25
The function SMCCC_ARCH_WORKAROUND_1 was introduced as part of SMC V1.1 Calling Convention to mitigate CVE-2017-5715. This patch uses the standard call SMCCC_ARCH_WORKAROUND_1 for Falkor chips instead of Silicon provider service ID 0xC2001700. Cc: <stable@vger.kernel.org> # 4.14+ Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org> [maz: reworked errata framework integration] Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-04-11arm64: turn flush_dcache_mmap_lock into a no-opMatthew Wilcox1-4/+2
ARM64 doesn't walk the VMA tree in its flush_dcache_page() implementation, so has no need to take the tree_lock. Link: http://lkml.kernel.org/r/20180313132639.17387-4-willy@infradead.org Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Jeff Layton <jlayton@kernel.org> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-11linux/const.h: move UL() macro to include/linux/const.hMasahiro Yamada1-6/+0
ARM, ARM64 and UniCore32 duplicate the definition of UL(): #define UL(x) _AC(x, UL) This is not actually arch-specific, so it will be useful to move it to a common header. Currently, we only have the uapi variant for linux/const.h, so I am creating include/linux/const.h. I also added _UL(), _ULL() and ULL() because _AC() is mostly used in the form either _AC(..., UL) or _AC(..., ULL). I expect they will be replaced in follow-up cleanups. The underscore-prefixed ones should be used for exported headers. Link: http://lkml.kernel.org/r/1519301715-31798-4-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-11exec: pass stack rlimit into mm layout functionsKees Cook1-7/+7
Patch series "exec: Pin stack limit during exec". Attempts to solve problems with the stack limit changing during exec continue to be frustrated[1][2]. In addition to the specific issues around the Stack Clash family of flaws, Andy Lutomirski pointed out[3] other places during exec where the stack limit is used and is assumed to be unchanging. Given the many places it gets used and the fact that it can be manipulated/raced via setrlimit() and prlimit(), I think the only way to handle this is to move away from the "current" view of the stack limit and instead attach it to the bprm, and plumb this down into the functions that need to know the stack limits. This series implements the approach. [1] 04e35f4495dd ("exec: avoid RLIMIT_STACK races with prlimit()") [2] 779f4e1c6c7c ("Revert "exec: avoid RLIMIT_STACK races with prlimit()"") [3] to security@kernel.org, "Subject: existing rlimit races?" This patch (of 3): Since it is possible that the stack rlimit can change externally during exec (either via another thread calling setrlimit() or another process calling prlimit()), provide a way to pass the rlimit down into the per-architecture mm layout functions so that the rlimit can stay in the bprm structure instead of sitting in the signal structure until exec is finalized. Link: http://lkml.kernel.org/r/1518638796-20819-2-git-send-email-keescook@chromium.org Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Willy Tarreau <w@1wt.eu> Cc: Hugh Dickins <hughd@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: "Jason A. Donenfeld" <Jason@zx2c4.com> Cc: Rik van Riel <riel@redhat.com> Cc: Laura Abbott <labbott@redhat.com> Cc: Greg KH <greg@kroah.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ben Hutchings <ben.hutchings@codethink.co.uk> Cc: Brad Spengler <spender@grsecurity.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-09Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds37-518/+1651
Pull kvm updates from Paolo Bonzini: "ARM: - VHE optimizations - EL2 address space randomization - speculative execution mitigations ("variant 3a", aka execution past invalid privilege register access) - bugfixes and cleanups PPC: - improvements for the radix page fault handler for HV KVM on POWER9 s390: - more kvm stat counters - virtio gpu plumbing - documentation - facilities improvements x86: - support for VMware magic I/O port and pseudo-PMCs - AMD pause loop exiting - support for AMD core performance extensions - support for synchronous register access - expose nVMX capabilities to userspace - support for Hyper-V signaling via eventfd - use Enlightened VMCS when running on Hyper-V - allow userspace to disable MWAIT/HLT/PAUSE vmexits - usual roundup of optimizations and nested virtualization bugfixes Generic: - API selftest infrastructure (though the only tests are for x86 as of now)" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (174 commits) kvm: x86: fix a prototype warning kvm: selftests: add sync_regs_test kvm: selftests: add API testing infrastructure kvm: x86: fix a compile warning KVM: X86: Add Force Emulation Prefix for "emulate the next instruction" KVM: X86: Introduce handle_ud() KVM: vmx: unify adjacent #ifdefs x86: kvm: hide the unused 'cpu' variable KVM: VMX: remove bogus WARN_ON in handle_ept_misconfig Revert "KVM: X86: Fix SMRAM accessing even if VM is shutdown" kvm: Add emulation for movups/movupd KVM: VMX: raise internal error for exception during invalid protected mode state KVM: nVMX: Optimization: Dont set KVM_REQ_EVENT when VMExit with nested_run_pending KVM: nVMX: Require immediate-exit when event reinjected to L2 and L1 event pending KVM: x86: Fix misleading comments on handling pending exceptions KVM: x86: Rename interrupt.pending to interrupt.injected KVM: VMX: No need to clear pending NMI/interrupt on inject realmode interrupt x86/kvm: use Enlightened VMCS when running on Hyper-V x86/hyper-v: detect nested features x86/hyper-v: define struct hv_enlightened_vmcs and clean field bits ...
2018-04-07kbuild: mark $(targets) as .SECONDARY and remove .PRECIOUS markersMasahiro Yamada1-1/+1
GNU Make automatically deletes intermediate files that are updated in a chain of pattern rules. Example 1) %.dtb.o <- %.dtb.S <- %.dtb <- %.dts Example 2) %.o <- %.c <- %.c_shipped A couple of makefiles mark such targets as .PRECIOUS to prevent Make from deleting them, but the correct way is to use .SECONDARY. .SECONDARY Prerequisites of this special target are treated as intermediate files but are never automatically deleted. .PRECIOUS When make is interrupted during execution, it may delete the target file it is updating if the file was modified since make started. If you mark the file as precious, make will never delete the file if interrupted. Both can avoid deletion of intermediate files, but the difference is the behavior when Make is interrupted; .SECONDARY deletes the target, but .PRECIOUS does not. The use of .PRECIOUS is relatively rare since we do not want to keep partially constructed (possibly corrupted) targets. Another difference is that .PRECIOUS works with pattern rules whereas .SECONDARY does not. .PRECIOUS: $(obj)/%.lex.c works, but .SECONDARY: $(obj)/%.lex.c has no effect. However, for the reason above, I do not want to use .PRECIOUS which could cause obscure build breakage. The targets specified as .SECONDARY must be explicit. $(targets) contains all targets that need to include .*.cmd files. So, the intermediates you want to keep are mostly in there. Therefore, mark $(targets) as .SECONDARY. It means primary targets are also marked as .SECONDARY, but I do not see any drawback for this. I replaced some .SECONDARY / .PRECIOUS markers with 'targets'. This will make Kbuild search for non-existing .*.cmd files, but this is not a noticeable performance issue. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Frank Rowand <frowand.list@gmail.com> Acked-by: Ingo Molnar <mingo@kernel.org>
2018-04-06Merge tag 'armsoc-soc' of ↵Linus Torvalds1-1/+38
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "This release brings up a new platform based on the old ARM9 core: the Nuvoton NPCM is used as a baseboard management controller, competing with the better known ASpeed AST2xx series. Another important change is the addition of ARMv7-A based chips in mach-stm32. The older parts in this platform are ARMv7-M based microcontrollers, now they are expanding to general-purpose workloads. The other changes are the usual defconfig updates to enable additional drivers, lesser bugfixes. The largest updates as often are the ongoing OMAP cleanups, but we also have a number of changes for the older PXA and davinci platforms this time. For the Renesas shmobile/r-car platform, some new infrastructure is needed to make the watchdog work correctly. Supporting Multiprocessing on Allwinner A80 required a significant amount of new code, but is not doing anything unexpected" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (179 commits) arm: npcm: modify configuration for the NPCM7xx BMC. MAINTAINERS: update entry for ARM/berlin ARM: omap2: fix am43xx build without L2X0 ARM: davinci: da8xx: simplify CFGCHIP regmap_config ARM: davinci: da8xx: fix oops in USB PHY driver due to stack allocated platform_data ARM: multi_v7_defconfig: add NXP FlexCAN IP support ARM: multi_v7_defconfig: enable thermal driver for i.MX devices ARM: multi_v7_defconfig: add RN5T618 PMIC family support ARM: multi_v7_defconfig: add NXP graphics drivers ARM: multi_v7_defconfig: add GPMI NAND controller support ARM: multi_v7_defconfig: add OCOTP driver for NXP SoCs ARM: multi_v7_defconfig: configure I2C driver built-in arm64: defconfig: add CONFIG_UNIPHIER_THERMAL and CONFIG_SNI_AVE ARM: imx: fix imx6sll-only build ARM: imx: select ARM_CPU_SUSPEND for CPU_IDLE as well ARM: mxs_defconfig: Re-sync defconfig ARM: imx_v4_v5_defconfig: Use the generic fsl-asoc-card driver ARM: imx_v4_v5_defconfig: Re-sync defconfig arm64: defconfig: enable stmmac ethernet to defconfig ARM: EXYNOS: Simplify code in coupled CPU idle hot path ...
2018-04-06Merge tag 'armsoc-dt' of ↵Linus Torvalds168-2566/+11303
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC device tree updates from Arnd Bergmann: "This is the usual set of changes for device trees, with over 700 non-merged changesets. There is an ongoing set of dtc warning fixes and the usual bugfixes, cleanups and added device support. The most interesting bit as usual is support for new machines listed below: - The Allwinner H6 makes its debut with the Pine-H64 board, and we get two new machines based on its older siblings: the H5 based OrangePi Zero+ and the A64 based Teres-I Laptop from Olimex. On the 32-bit side, we add The Olimex som204 based on Allwinner A20, and the Banana Pi M2 Zero development board (based on H2). - NVIDIA adds support for Tegra194 aka "Xavier", plus their p2972 development board and p2888 CPU module. - The Nuvoton npcm750 is a BMC that was newly added, for now we only support running on the evaluation board. - STmicroelectronics stm32 gains support for the stm32mp157c and two evaluation boards. - The Toradex Colibri board family grows a few members based on the i.MX6ULL variant. - The Advantec DMS-BA16 is a Qseven module using the NXP i.MX6 family of chips. - The Phytec phyBOARD Mira is a family of industrial boards based on i.MX6. For now, four models get added. - TI am335x based PDU-001 is an industrial embedded machine used for traffic monitoring - The Aspeed platform now supports running on the BMC on the Qualcomm Centriq 2400 server - Samsung Exynos4 based Galaxy S3 is a family of mobile phones Qualcomm msm8974 based Galaxy S5 is a rather different phone made by the same company. - The Xilinx Zynq and ZynqMP platforms now gained a lot of dts file for the various boards made by Xilinx themselves, as well as the Digilent Zybo Z7. - The ARM Versatile family now supports the "IB2" interface board. - The Renesas H2 based "Stout" and the H3 based Salvator-X are more evaluation boards named after a kind of beer, as most of them are. The r8a77980 (V3H) based "Condor" apparently doesn't follow that tradition. ;-) - ROC-RK3328-CC is a simple developement board from the Libre Computer Project, based on the Rockchips RK3328 SoC - Haiku is another development board plus Qseven module based on Rockchips RK3368 and made by Theobroma Systems" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (701 commits) arm: dts: modify Nuvoton NPCM7xx device tree structure arm: dts: modify Makefile NPCM750 configuration name arm: dts: modify clock binding in NPCM750 device tree arm: dts: modify timer register size in NPCM750 device tree arm: dts: modify UART compatible name in NPCM750 device tree arm: dts: add watchdog device to NPCM750 device tree arm64: dts: uniphier: add ethernet node for PXs3 ARM: dts: uniphier: add pinctrl groups of ethernet for second instance arm: dts: kirkwood*.dts: use SPDX-License-Identifier for board using GPL-2.0+ arm: dts: kirkwood*.dts: use SPDX-License-Identifier for boards using GPL-2.0+/MIT arm: dts: kirkwood*.dts: use SPDX-License-Identifier for boards using GPL-2.0 arm: dts: armada-385-turris-omnia: use SPDX-License-Identifier arm: dts: armada-385-db-ap: use SPDX-License-Identifier arm: dts: armada-388-rd: use SPDX-License-Identifier arm: dts: armada-xp-db-xc3-24g4xg: use SPDX-License-Identifier arm: dts: armada-xp-db-dxbc2: use SPDX-License-Identifier arm: dts: armada-370-db: use SPDX-License-Identifier arm: dts: armada-*.dts: use SPDX-License-Identifier for most of the Armada based board arm: dts: armada-xp-98dx: use SPDX-License-Identifier for prestara 98d SoCs arm: dts: armada-*.dtsi: use SPDX-License-Identifier for most of the Armada SoCs ...
2018-04-06Merge tag 'devicetree-for-4.17' of ↵Linus Torvalds2-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: - Sync dtc to upstream version v1.4.6-9-gaadd0b65c987. This adds a bunch more warnings (hidden behind W=1). - Build dtc lexer and parser files instead of using shipped versions. - Rework overlay apply API to take an FDT as input and apply overlays in a single step. - Add a phandle lookup cache. This improves boot time by hundreds of msec on systems with large DT. - Add trivial mcp4017/18/19 potentiometers bindings. - Remove VLA stack usage in DT code. * tag 'devicetree-for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (26 commits) of: unittest: fix an error code in of_unittest_apply_overlay() of: unittest: move misplaced function declaration of: unittest: Remove VLA stack usage of: overlay: Fix forgotten reference to of_overlay_apply() of: Documentation: Fix forgotten reference to of_overlay_apply() of: unittest: local return value variable related cleanups of: unittest: remove unneeded local return value variables dt-bindings: trivial: add various mcp4017/18/19 potentiometers of: unittest: fix an error test in of_unittest_overlay_8() of: cache phandle nodes to reduce cost of of_find_node_by_phandle() dt-bindings: rockchip-dw-mshc: use consistent clock names MAINTAINERS: Add linux/of_*.h headers to appropriate subsystems scripts: turn off some new dtc warnings by default scripts/dtc: Update to upstream version v1.4.6-9-gaadd0b65c987 scripts/dtc: generate lexer and parser during build instead of shipping powerpc: boot: add strrchr function of: overlay: do not include path in full_name of added nodes of: unittest: clean up changeset test arm64/efi: Make strrchr() available to the EFI namespace ARM: boot: add strrchr function ...
2018-04-05Merge branch 'linus' of ↵Linus Torvalds10-355/+886
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "API: - add AEAD support to crypto engine - allow batch registration in simd Algorithms: - add CFB mode - add speck block cipher - add sm4 block cipher - new test case for crct10dif - improve scheduling latency on ARM - scatter/gather support to gcm in aesni - convert x86 crypto algorithms to skcihper Drivers: - hmac(sha224/sha256) support in inside-secure - aes gcm/ccm support in stm32 - stm32mp1 support in stm32 - ccree driver from staging tree - gcm support over QI in caam - add ks-sa hwrng driver" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (212 commits) crypto: ccree - remove unused enums crypto: ahash - Fix early termination in hash walk crypto: brcm - explicitly cast cipher to hash type crypto: talitos - don't leak pointers to authenc keys crypto: qat - don't leak pointers to authenc keys crypto: picoxcell - don't leak pointers to authenc keys crypto: ixp4xx - don't leak pointers to authenc keys crypto: chelsio - don't leak pointers to authenc keys crypto: caam/qi - don't leak pointers to authenc keys crypto: caam - don't leak pointers to authenc keys crypto: lrw - Free rctx->ext with kzfree crypto: talitos - fix IPsec cipher in length crypto: Deduplicate le32_to_cpu_array() and cpu_to_le32_array() crypto: doc - clarify hash callbacks state machine crypto: api - Keep failed instances alive crypto: api - Make crypto_alg_lookup static crypto: api - Remove unused crypto_type lookup function crypto: chelsio - Remove declaration of static function from header crypto: inside-secure - hmac(sha224) support crypto: inside-secure - hmac(sha256) support ..
2018-04-05Merge tag 'arm64-upstream' of ↵Linus Torvalds46-774/+1433
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Will Deacon: "Nothing particularly stands out here, probably because people were tied up with spectre/meltdown stuff last time around. Still, the main pieces are: - Rework of our CPU features framework so that we can whitelist CPUs that don't require kpti even in a heterogeneous system - Support for the IDC/DIC architecture extensions, which allow us to elide instruction and data cache maintenance when writing out instructions - Removal of the large memory model which resulted in suboptimal codegen by the compiler and increased the use of literal pools, which could potentially be used as ROP gadgets since they are mapped as executable - Rework of forced signal delivery so that the siginfo_t is well-formed and handling of show_unhandled_signals is consolidated and made consistent between different fault types - More siginfo cleanup based on the initial patches from Eric Biederman - Workaround for Cortex-A55 erratum #1024718 - Some small ACPI IORT updates and cleanups from Lorenzo Pieralisi - Misc cleanups and non-critical fixes" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (70 commits) arm64: uaccess: Fix omissions from usercopy whitelist arm64: fpsimd: Split cpu field out from struct fpsimd_state arm64: tlbflush: avoid writing RES0 bits arm64: cmpxchg: Include linux/compiler.h in asm/cmpxchg.h arm64: move percpu cmpxchg implementation from cmpxchg.h to percpu.h arm64: cmpxchg: Include build_bug.h instead of bug.h for BUILD_BUG arm64: lse: Include compiler_types.h and export.h for out-of-line LL/SC arm64: fpsimd: include <linux/init.h> in fpsimd.h drivers/perf: arm_pmu_platform: do not warn about affinity on uniprocessor perf: arm_spe: include linux/vmalloc.h for vmap() Revert "arm64: Revert L1_CACHE_SHIFT back to 6 (64-byte cache line size)" arm64: cpufeature: Avoid warnings due to unused symbols arm64: Add work around for Arm Cortex-A55 Erratum 1024718 arm64: Delay enabling hardware DBM feature arm64: Add MIDR encoding for Arm Cortex-A55 and Cortex-A35 arm64: capabilities: Handle shared entries arm64: capabilities: Add support for checks based on a list of MIDRs arm64: Add helpers for checking CPU MIDR against a range arm64: capabilities: Clean up midr range helpers arm64: capabilities: Change scope of VHE to Boot CPU feature ...
2018-04-05Merge branch 'irq-core-for-linus' of ↵Linus Torvalds2-5/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Thomas Gleixner: "The usual pile of boring changes: - Consolidate tasklet functions to share code instead of duplicating it - The first step for making the low level entry handler management on multi-platform kernels generic - A new sysfs file which allows to retrieve the wakeup state of interrupts. - Ensure that the interrupt thread follows the effective affinity and not the programmed affinity to avoid cross core wakeups. - Two new interrupt controller drivers (Microsemi Ocelot and Qualcomm PDC) - Fix the wakeup path clock handling for Reneasas interrupt chips. - Rework the boot time register reset for ARM GIC-V2/3 - Better suspend/resume support for ARM GIV-V3/ITS - Add missing locking to the ARM GIC set_type() callback - Small fixes for the irq simulator code - SPDX identifiers for the irq core code and removal of boiler plate - Small cleanups all over the place" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits) openrisc: Set CONFIG_MULTI_IRQ_HANDLER arm64: Set CONFIG_MULTI_IRQ_HANDLER genirq: Make GENERIC_IRQ_MULTI_HANDLER depend on !MULTI_IRQ_HANDLER irqchip/gic: Take lock when updating irq type irqchip/gic: Update supports_deactivate static key to modern api irqchip/gic-v3: Ensure GICR_CTLR.EnableLPI=0 is observed before enabling irqchip: Add a driver for the Microsemi Ocelot controller dt-bindings: interrupt-controller: Add binding for the Microsemi Ocelot interrupt controller irqchip/gic-v3: Probe for SCR_EL3 being clear before resetting AP0Rn irqchip/gic-v3: Don't try to reset AP0Rn irqchip/gic-v3: Do not check trigger configuration of partitionned LPIs genirq: Remove license boilerplate/references genirq: Add missing SPDX identifiers genirq/matrix: Cleanup SPDX identifier genirq: Cleanup top of file comments genirq: Pass desc to __irq_free instead of irq number irqchip/gic-v3: Loudly complain about the use of IRQ_TYPE_NONE irqchip/gic: Loudly complain about the use of IRQ_TYPE_NONE RISC-V: Move to the new GENERIC_IRQ_MULTI_HANDLER handler genirq: Add CONFIG_GENERIC_IRQ_MULTI_HANDLER ...
2018-04-04arm64: Set CONFIG_MULTI_IRQ_HANDLERPalmer Dabbelt1-0/+4
arm has an optional MULTI_IRQ_HANDLER, which arm64 copied but didn't make optional. The multi irq handler infrastructure has been copied to generic code selectable with a new config symbol. That symbol can be selected by randconfig builds and can cause build breakage. Introduce CONFIG_MULTI_IRQ_HANDLER as an intermediate step which prevents the core config symbol from being selected. The arm64 local config symbol will be removed once arm64 gets converted to the generic code. Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Link: https://lkml.kernel.org/r/20180404043130.31277-2-palmer@sifive.com
2018-04-03Merge tag 'mmc-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds2-3/+0
Pull MMC updates from Ulf Hansson: "MMC core: - Export host capabilities through debugfs - Export card RCA register via sysfs - Improve card initializing sequence while enabling 4-bit bus - Export a function to enable/disable wakeup for card detect IRQ MMC host: - dw_mmc: Add support for new hi3798cv200 variant - dw_mmc: Remove support for some deprecated DT properties - mediatek: Add support for new variant used on MT7622 SoC - sdhci: Improve wakeup support for SDIO IRQs - sdhci: Improve wakeup support for card detect IRQs - sdhci-omap: Add tuning support - sdhci_omap: Add UHS-I mode support - sunxi: Prepare for runtime PM support via a few re-factorings - tmio: deprecate "toshiba,mmc-wrprotect-disable" DT property - tmio/renesas_sdhi: Consolidate code supporting write protect - tmio: Improve DMA vs PIO handling - tmio: Add support for IP-builtin card detection logic" * tag 'mmc-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (55 commits) mmc: renesas_sdhi: replace EXT_ACC with HOST_MODE mmc: update sdio_claim_irq documentation mmc: Export host capabilities to debugfs. mmc: core: Disable HPI for certain Micron (Numonyx) eMMC cards mmc: block: fix updating ext_csd caches on ioctl call mmc: sunxi: Set our device drvdata earlier mmc: sunxi: Move the reset deassertion before enabling the clocks mmc: sunxi: Move resources management to separate functions mmc: dw_mmc: add support for hi3798cv200 specific extensions of dw-mshc dt-bindings: mmc: add bindings for hi3798cv200-dw-mshc mmc: core: Export card RCA register via sysfs mmc: renesas_sdhi: fix WP detection mmc: core: Use memdup_user() rather than duplicating its implementation mmc: dw_mmc-rockchip: correct property names in debug mmc: sd: Remove redundant err assignment from mmc_read_switch mmc: sdio: Check the return value of sdio_enable_4bit_bus mmc: core: Don't try UHS-I mode if 4-bit mode isn't supported arm64: dts: hi3660: remove 'num-slots' property for dwmmc ARM: dts: lpc18xx: remove 'num-slots' property for dwmmc arm64: dts: stratix10: remove 'num-slots' property for dwmmc ...
2018-04-03Merge branch 'syscalls-next' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux Pull removal of in-kernel calls to syscalls from Dominik Brodowski: "System calls are interaction points between userspace and the kernel. Therefore, system call functions such as sys_xyzzy() or compat_sys_xyzzy() should only be called from userspace via the syscall table, but not from elsewhere in the kernel. At least on 64-bit x86, it will likely be a hard requirement from v4.17 onwards to not call system call functions in the kernel: It is better to use use a different calling convention for system calls there, where struct pt_regs is decoded on-the-fly in a syscall wrapper which then hands processing over to the actual syscall function. This means that only those parameters which are actually needed for a specific syscall are passed on during syscall entry, instead of filling in six CPU registers with random user space content all the time (which may cause serious trouble down the call chain). Those x86-specific patches will be pushed through the x86 tree in the near future. Moreover, rules on how data may be accessed may differ between kernel data and user data. This is another reason why calling sys_xyzzy() is generally a bad idea, and -- at most -- acceptable in arch-specific code. This patchset removes all in-kernel calls to syscall functions in the kernel with the exception of arch/. On top of this, it cleans up the three places where many syscalls are referenced or prototyped, namely kernel/sys_ni.c, include/linux/syscalls.h and include/linux/compat.h" * 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: (109 commits) bpf: whitelist all syscalls for error injection kernel/sys_ni: remove {sys_,sys_compat} from cond_syscall definitions kernel/sys_ni: sort cond_syscall() entries syscalls/x86: auto-create compat_sys_*() prototypes syscalls: sort syscall prototypes in include/linux/compat.h net: remove compat_sys_*() prototypes from net/compat.h syscalls: sort syscall prototypes in include/linux/syscalls.h kexec: move sys_kexec_load() prototype to syscalls.h x86/sigreturn: use SYSCALL_DEFINE0 x86: fix sys_sigreturn() return type to be long, not unsigned long x86/ioport: add ksys_ioperm() helper; remove in-kernel calls to sys_ioperm() mm: add ksys_readahead() helper; remove in-kernel calls to sys_readahead() mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff() mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64() fs: add ksys_fallocate() wrapper; remove in-kernel calls to sys_fallocate() fs: add ksys_p{read,write}64() helpers; remove in-kernel calls to syscalls fs: add ksys_truncate() wrapper; remove in-kernel calls to sys_truncate() fs: add ksys_sync_file_range helper(); remove in-kernel calls to syscall kernel: add ksys_setsid() helper; remove in-kernel call to sys_setsid() kernel: add ksys_unshare() helper; remove in-kernel calls to sys_unshare() ...
2018-04-03Merge branch 'efi-core-for-linus' of ↵Linus Torvalds4-2/+52
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI updates from Ingo Molnar: "The main EFI changes in this cycle were: - Fix the apple-properties code (Andy Shevchenko) - Add WARN() on arm64 if UEFI Runtime Services corrupt the reserved x18 register (Ard Biesheuvel) - Use efi_switch_mm() on x86 instead of manipulating %cr3 directly (Sai Praneeth) - Fix early memremap leak in ESRT code (Ard Biesheuvel) - Switch to L"xxx" notation for wide string literals (Ard Biesheuvel) - ... plus misc other cleanups and bugfixes" * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/efi: Use efi_switch_mm() rather than manually twiddling with %cr3 x86/efi: Replace efi_pgd with efi_mm.pgd efi: Use string literals for efi_char16_t variable initializers efi/esrt: Fix handling of early ESRT table mapping efi: Use efi_mm in x86 as well as ARM efi: Make const array 'apple' static efi/apple-properties: Use memremap() instead of ioremap() efi: Reorder pr_notice() with add_device_randomness() call x86/efi: Replace GFP_ATOMIC with GFP_KERNEL in efi_query_variable_store() efi/arm64: Check whether x18 is preserved by runtime services calls efi/arm*: Stop printing addresses of virtual mappings efi/apple-properties: Remove redundant attribute initialization from unmarshal_key_value_pairs() efi/arm*: Only register page tables when they exist
2018-04-02mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff()Dominik Brodowski1-1/+1
Using this helper allows us to avoid the in-kernel calls to the sys_mmap_pgoff() syscall. The ksys_ prefix denotes that this function is meant as a drop-in replacement for the syscall. In particular, it uses the same calling convention as sys_mmap_pgoff(). This patch is part of a series which removes in-kernel calls to syscalls. On this basis, the syscall entry path can be streamlined. For details, see http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-mm@kvack.org Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2018-03-29Merge tag 'armsoc-fixes' of ↵Linus Torvalds2-17/+7
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Arnd Bergmann: "Here are are a couple of last-minute fixes for 4.16, mostly for regressions. As usual, the majory are device tree changes: - USB 3 support on rk3399 didn't work and is being reverted for now - One fix for an old suspend/resume bug on rk3399 - A few regulator related fixes on Banana Pi M2, and on imx7d-sdb - A boot regression fix for all Aspeed SoCs failing to find their memory - One more dtc warning fix The other changes are: - A few updates to the MAINTAINERS file - A revert for an incorrect orion5x cleanup - Two power management fixes for OMAP" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: OMAP: Fix SRAM W+X mapping ARM: dts: aspeed: Add default memory node mailmap: Update email address for Gregory CLEMENT ARM: davinci: fix the GPIO lookup for omapl138-hawk MAINTAINERS: Update Tegra IOMMU maintainer ARM: dts: imx7d-sdb: Fix regulator-usb-otg2-vbus node name ARM: ux500: Fix PMU IRQ regression ARM: dts: rockchip: Add missing #sound-dai-cells on rk3288 Revert "arm64: dts: rockchip: add usb3-phy otg-port support for rk3399" arm64: dts: rockchip: Fix rk3399-gru-* s2r (pinctrl hogs, wifi reset) ARM: OMAP: Fix dmtimer init for omap1 MAINTAINERS: update email address for Maxime Ripard ARM: dts: sun6i: a31s: bpi-m2: add missing regulators ARM: dts: sun6i: a31s: bpi-m2: improve pmic properties
2018-03-28Merge tag 'uniphier-dt-v4.17-2' of ↵Arnd Bergmann4-2/+62
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier into next/dt Pull "UniPhier ARM SoC DT updates for v4.17 (2nd)" from Masahiro Yamada: - add syscon property to sound nodes - add more ethernet pin groups - add ethernet support for PXs3 SoC * tag 'uniphier-dt-v4.17-2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier: arm64: dts: uniphier: add ethernet node for PXs3 ARM: dts: uniphier: add pinctrl groups of ethernet for second instance ARM: dts: uniphier: add syscon property for UniPhier sound system arm64: dts: uniphier: add syscon property for UniPhier sound system
2018-03-28Merge tag 'v4.17-rockchip-dts64-1' of ↵Arnd Bergmann12-72/+981
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt Pull "Rockchip dts64 changes for 4.17" from Heiko Stübner: The rk3399 gained support its Cadence displayport controller and some minor additions like pins for 2ch i2s0 and the cif test clocks as well as a default rate for ACLK_VIO that should be 400MHz according to the TRM. The rk3328 got uart dmas fixed - a non-critical fix, as nobody was using that so far. New boards are the rk3328-based roc-rk3328-cc, the rk3368-based Lion-SOM + baseborad from Theobroma Systems and a standalone variant of the Sapphire board, as a lot of people where using that without the Exkavator baseboard. Sapphire also saw a lot of small cleanups of things that are not part of the actual Sapphire board, but the baseboard instead. The rk3399-puma board got i2s and tsadc support and Gru got its DP node enabled. * tag 'v4.17-rockchip-dts64-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: arm64: dts: rockchip: remove keep-power-in-suspend from sdhci of rk3399-sapphire arm64: dts: rockchip: assign clock rate for ACLK_VIO on rk3399 arm64: dts: rockchip: add a standalone version of the rk3399 sapphire arm64: dts: rockchip: move rk3399-sapphire pwr_btn to daughterboard arm64: dts: rockchip: move rk3399-sapphire i2s2 to daughterboard arm64: dts: rockchip: move rk3399-sapphire sdio to excavator baseboard arm64: dts: rockchip: enable I2S codec on rk3399-puma-haikou arm64: dts: rockchip: move i2s0 node from baseboard to SoM on rk3399-puma arm64: dts: rockchip: vdd_log on rk3399-sapphire is not an i2c slave arm64: dts: rockchip: add Haikou baseboard with RK3368-uQ7 SoM arm64: dts: rockchip: add RK3368-uQ7 (Lion) SoM dt-bindings: add RK3368-uQ7 SoM and EVK base board arm64: dts: rockchip: Fix RK3328 UART DMAs arm64: dts: rockchip: enable DP for rk3399-gru arm64: dts: rockchip: add cdn-dp node for rk3399. arm64: dts: rockchip: add i2s0-2ch-bus pins on rk3399 arm64: dts: rockchip: enable tsadc on rk3399-puma arm64: dts: rockchip: add roc-rk3328-cc board arm64: dts: rockchip: Add cif test clocks for rk3399
2018-03-28arm64: uaccess: Fix omissions from usercopy whitelistDave Martin7-57/+72
When the hardend usercopy support was added for arm64, it was concluded that all cases of usercopy into and out of thread_struct were statically sized and so didn't require explicit whitelisting of the appropriate fields in thread_struct. Testing with usercopy hardening enabled has revealed that this is not the case for certain ptrace regset manipulation calls on arm64. This occurs because the sizes of usercopies associated with the regset API are dynamic by construction, and because arm64 does not always stage such copies via the stack: indeed the regset API is designed to avoid the need for that by adding some bounds checking. This is currently believed to affect only the fpsimd and TLS registers. Because the whitelisted fields in thread_struct must be contiguous, this patch groups them together in a nested struct. It is also necessary to be able to determine the location and size of that struct, so rather than making the struct anonymous (which would save on edits elsewhere) or adding an anonymous union containing named and unnamed instances of the same struct (gross), this patch gives the struct a name and makes the necessary edits to code that references it (noisy but simple). Care is needed to ensure that the new struct does not contain padding (which the usercopy hardening would fail to protect). For this reason, the presence of tp2_value is made unconditional, since a padding field would be needed there in any case. This pads up to the 16-byte alignment required by struct user_fpsimd_state. Acked-by: Kees Cook <keescook@chromium.org> Reported-by: Mark Rutland <mark.rutland@arm.com> Fixes: 9e8084d3f761 ("arm64: Implement thread_struct whitelist for hardened usercopy") Signed-off-by: Dave Martin <Dave.Martin@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-03-28arm64: fpsimd: Split cpu field out from struct fpsimd_stateDave Martin6-57/+29
In preparation for using a common representation of the FPSIMD state for tasks and KVM vcpus, this patch separates out the "cpu" field that is used to track the cpu on which the state was most recently loaded. This will allow common code to operate on task and vcpu contexts without requiring the cpu field to be stored at the same offset from the FPSIMD register data in both cases. This should avoid the need for messing with the definition of those parts of struct vcpu_arch that are exposed in the KVM user ABI. The resulting change is also convenient for grouping and defining the set of thread_struct fields that are supposed to be accessible to copy_{to,from}_user(), which includes user_fpsimd_state but should exclude the cpu field. This patch does not amend the usercopy whitelist to match: that will be addressed in a subsequent patch. Signed-off-by: Dave Martin <Dave.Martin@arm.com> [will: inline fpsimd_flush_state for now] Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-03-28arm64: tlbflush: avoid writing RES0 bitsPhilip Elcan1-8/+17
Several of the bits of the TLBI register operand are RES0 per the ARM ARM, so TLBI operations should avoid writing non-zero values to these bits. This patch adds a macro __TLBI_VADDR(addr, asid) that creates the operand register in the correct format and honors the RES0 bits. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Philip Elcan <pelcan@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-03-28Merge tag 'kvm-arm-for-v4.17' of ↵Radim Krčmář38-521/+1651
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm KVM/ARM updates for v4.17 - VHE optimizations - EL2 address space randomization - Variant 3a mitigation for Cortex-A57 and A72 - The usual vgic fixes - Various minor tidying-up
2018-03-28arm64: Add temporary ERRATA_MIDR_ALL_VERSIONS compatibility macroMarc Zyngier1-2/+6
MIDR_ALL_VERSIONS is changing, and won't have the same meaning in 4.17, and the right thing to use will be ERRATA_MIDR_ALL_VERSIONS. In order to cope with the merge window, let's add a compatibility macro that will allow a relatively smooth transition, and that can be removed post 4.17-rc1. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-03-28Revert "arm64: KVM: Use SMCCC_ARCH_WORKAROUND_1 for Falkor BP hardening"Marc Zyngier6-20/+69
Creates far too many conflicts with arm64/for-next/core, to be resent post -rc1. This reverts commit f9f5dc19509bbef6f5e675346f1a7d7b846bdb12. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-03-27arm64: dts: uniphier: add ethernet node for PXs3Kunihiko Hayashi2-0/+58
Add nodes of the AVE ethernet controller for PXs3 and the boards. This SoC has two controllers. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-03-27arm64: defconfig: add CONFIG_UNIPHIER_THERMAL and CONFIG_SNI_AVEKunihiko Hayashi1-0/+2
Enable the thermal monitor driver and the AVE ethernet driver implemented on UniPhier SoCs. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-27Merge tag 'stratix10_defconfig_for_v4.17' of ↵Arnd Bergmann1-0/+5
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into next/soc Pull "ARM64: stratix10: defconfig updates for 4.17" from Dinh Nguyen: -enables STMMAC_ETH controller that is present on Stratix10 * tag 'stratix10_defconfig_for_v4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux: arm64: defconfig: enable stmmac ethernet to defconfig Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-27Merge tag 'qcom-arm64-defconfig-for-4.17' of ↵Arnd Bergmann1-0/+11
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/soc Pull "Qualcomm ARM64 Based defconfig Updates for v4.17" from Andy Gross: * Enable cpufreq governors, QCOM TSENS, and QCOM APCS driver * tag 'qcom-arm64-defconfig-for-4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/agross/linux: arm64: defconfig: enable more cpufreq governors arm64: defconfig: enable thermal sensor on QCOM platforms arm64: defconfig: Enable the APCS IPC driver on Qualcomm platforms Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-27Merge tag 'amlogic-defconfig' of ↵Arnd Bergmann1-0/+1
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/soc Pull "Amlogic defconfig fixes for v4.17" from Kevin Hilman * tag 'amlogic-defconfig' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: arm64: defconfig: enable MESON EFUSE
2018-03-27Merge tag 'renesas-arm64-defconfig-for-v4.17' of ↵Arnd Bergmann1-0/+6
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc Pull "Renesas ARM64 Based SoC Defconfig Updates for v4.17" from Simon Horman: Enable the following to allow them to be more widely exercised: * Newly added R8A77965 and R8A77980 SoCs * PWM and USB as used on R-Car Gen3 SoCs * tag 'renesas-arm64-defconfig-for-v4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/horms/renesas: arm64: defconfig: enable R8A77965 SoC arm64: defconfig: Enable PWM and USB for R-Car arm64: defconfig: enable R8A77980 SoC
2018-03-27Merge tag 'tegra-for-4.17-arm64-defconfig' of ↵Arnd Bergmann1-0/+6
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/soc Pull "arm64: Default configuration updates for v4.17-rc1" from Thierry Reding: Enable the BPMP thermal and CPU frequency drivers as well as make sure that the Tegra SMMU is enabled by default because there's no fun without it. Also enable initial Tegra194 support. * tag 'tegra-for-4.17-arm64-defconfig' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tegra/linux: arm64: defconfig: Enable the Tegra SMMU by default arm64: defconfig: Enable CONFIG_TEGRA_BPMP_THERMAL arm64: defconfig: Enable CONFIG_ARM_TEGRA186_CPUFREQ arm64: defconfig: Enable NVIDIA Tegra194 support
2018-03-27Merge tag 'imx-dt64-4.17-2' of ↵Arnd Bergmann7-19/+19
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt Pull "Freescale arm64 device tree fixups for 4.17" from Shawn Guo: - It reverts a couple of patches that "fix" DTC warnings on IFC memory controller in a wrong way. We will start over agagin to address the DTC warnings later. * tag 'imx-dt64-4.17-2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: Revert "dt-bindings: ifc: Fix the unit address format in the examples" Revert "arm64: dts: fsl: fix ifc simple-bus unit address format warnings"
2018-03-27Merge tag 'socfpga_dts_for_v4.17' of ↵Arnd Bergmann1-0/+5
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into next/dt Pull "SoCFPGA DTS updates for v4.17" from Dinh Nguyen: - Fix GIC PPI warning - Stratix10 platform updates - Disable over-current for Arria10 devkit - Enable watchdog timer * tag 'socfpga_dts_for_v4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux: arm: dts: socfpga: fix GIC PPI warning arm64: dts: stratix10: disable false USB overcurrent on devkit arm64: dts: stratix10: enable watchdog timer on the S10 devkit
2018-03-27Merge tag 'sunxi-h3-h5-for-4.17' of ↵Arnd Bergmann7-16/+219
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/dt Pull "Allwinner H3/H5 changes for 4.17" from Maxime Ripard: Here is our usual bunch of changes to the common DTSI shared between arm and arm64, and their associated device trees. Even though the diffstat is quite big, it's been mostly just cleanups. The big feature is that the HDMI is now suported on H3 and H5 boards. * tag 'sunxi-h3-h5-for-4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: arm64: allwinner: H5: Add Xunlong Orange Pi Zero Plus ARM: dts: sun8i-h3: Add Mali node ARM64: dts: sun50i: h5: Enable HDMI output on H5 boards ARM: dts: sun8i: h3: Enable HDMI output on H3 boards ARM: dts: sunxi: h3/h5: Add HDMI pipeline ARM: dts: sun8i: h2-plus: remove unnecessary mmc1_pins node ARM: dts: sunxi: h3-h5: rename mmc0_pins_a and mmc1_pins_a ARM: dts: sunxi: h3-h5: Move pinctrl of mmc1 from dts to dtsi ARM: dts: sunxi: h3-h5: Move pinctrl of mmc0 from dts to dtsi ARM: dts: sunxi: h3-h5: remove mmc0 card detection pin from pinctrl ARM: dts: sun8i: h2+: add support for Banana Pi M2 Zero board ARM: dts: sunxi: Switch MMC nodes away from cd-inverted property ARM: dts: nanopi-neo-air: Add WiFi / eMMC
2018-03-27Merge tag 'sunxi-dt64-for-4.17' of ↵Arnd Bergmann10-10/+580
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/dt Pull "Allwinner arm64 DT changes for 4.17" from Maxime Ripard: We've had for this release a pretty good progress on the arm64 front as well: - The A64 now has SPDIF support - The H6 is now supported (even though at an early stage) - The TERES-I laptop from Olimex has seen some early support as well * tag 'sunxi-dt64-for-4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: arm64: dts: allwinner: a64: Add support for TERES-I laptop arm64: dts: allwinner: a64: add simplefb for A64 SoC arm64: dts: allwinner: a64: Add watchdog arm64: dts: allwinner: a64: Add i2c0 pins arm64: allwinner: h6: add support for Pine H64 board arm64: allwinner: h6: add the basical Allwinner H6 DTSI file arm64: dts: sunxi: Switch MMC nodes away from cd-inverted property arm64: dts: allwinner: a64: Add DAI nodes arm64: dts: allwinner: a64: Add SPDIF to the Pine64 arm64: dts: allwinner: a64: Add SPDIF to the A64 arm64: dts: allwinner: a64: Add the SPDIF block and pin
2018-03-27Merge tag 'qcom-arm64-for-4.17' of ↵Arnd Bergmann2-9/+74
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/dt Pull "Qualcomm ARM64 Updates for v4.17" from Andy Gross: * Fix GIC_CPU_MASK_SIMPLE and SPI5 config on MSM8996 * Add SDM845 and kryo385 documentation * Add MSM8916 cooling maps, cpu frequency scaling, APCS, and A53 PLL * Switch APCS to use mailbox on MSM8916 * Add rmtfs-mem on MSM8996 * tag 'qcom-arm64-for-4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/agross/linux: arm64: dts: qcom: Fix SPI5 config on MSM8996 dt-bindings: qcom: Add SDM845 bindings dt-bindings: arm: Document kryo385 cpu arm64: dts: msm8916: Add cpu cooling maps arm64: dts: msm8996: Add rmtfs sharedmem node arm64: dts: qcom: msm8916: Add CPU frequency scaling support arm64: dts: qcom: msm8916: Add clock properties to the APCS node arm64: dts: qcom: msm8916: Probe the APCS mailbox driver arm64: dts: qcom: msm8916: Add msm8916 A53 PLL DT node arm64: dts: msm8996: Fix wrong use of GIC_CPU_MASK_SIMPLE()
2018-03-27ARM64: dts: meson: Remove "cooling-{min|max}-level" for gpio-fan nodeViresh Kumar1-2/+0
The "cooling-min-level" and "cooling-max-level" properties are not parsed by any part of the kernel currently and the max cooling state of gpio-fan cooling device is found by referring to the "gpio-fan,speed-map" instead. Remove the unused properties from the gpio-fan node. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-27ARM64: dts: meson: Remove "cooling-{min|max}-level" for CPU nodesViresh Kumar1-4/+0
The "cooling-min-level" and "cooling-max-level" properties are not parsed by any part of the kernel currently and the max cooling state of a CPU cooling device is found by referring to the cpufreq table instead. Remove the unused properties from the CPU nodes. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-27Merge tag 'amlogic-dt64' of ↵Arnd Bergmann37-1178/+611
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/dt Pull "Amlogic 64-bit DT updates for v4.17" from Kevin Hilman: - AXG: add/enable UART_A, I2C, RMII, system controller, HW RNG - accept MAC from u-boot environment - misc. fixes * tag 'amlogic-dt64' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: ARM64: dts: meson-gx: make efuse read-only ARM64: dts: meson: bump mali450 clk to 744MHz meson-gx-socinfo: Add package id for S905H ARM64: dts: meson-gxbb-wetek: add a wetek specific dtsi to cleanup hub and play2 ARM64: dts: meson: reduce odroid-c2 eMMC maximum rate ARM64: dts: amlogic: Convert to new-style SPDX license identifiers ARM64: dts: meson-axg: fix pwm_AO_cd compatible ARM64: dts: meson-axg: add sec_AO system controller ARM64: dts: meson: accept MAC addr from u-boot environment ARM64: dts: meson s905x: accept MAC addr from u-boot environment ARM64: dts: meson-axg: enable the UART_A controller ARM64: dts: meson-axg: complete the pinctrl info for UART_AO_A ARM64: dts: meson-axg: uart: Add the pinctrl info description ARM64: dts: meson-axg: uart: drop legacy compatible name from EE UART ARM64: dts: meson-axg: add RMII pins for ethernet controller ARM64: dts: meson-axg: enable I2C Master-1 for the audio speaker ARM64: dts: meson-axg: describe pin DT info for I2C controller ARM64: dts: meson-axg: add I2C DT info for Meson-AXG SoC ARM64: meson-axg: enable hardware rng