f97a43e436
12553 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
f853ed90e2 |
More bugfixes, including a few remaining "make W=1" issues such
as too large frame sizes on some configurations. On the ARM side, the compiler was messing up shadow stacks between EL1 and EL2 code, which is easily fixed with __always_inline. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAABAgAGBQJeXAT4AAoJEL/70l94x66DWywH/1kv4MmeGo6PI0Nxk/yvA7X8 78iqIBchtxZX0v/9kqpTB7bYmHyTgmZHM+IkwtIUANDSaOvWqJwU+TLUfduOiuXF NxBHcZDyuMoftX5CSQ+bJ5PwxKijAdJsIkCZ13CnsTCkwcfamSGypFUCK8LacPeq WHvV5Ws5pFc51xrP3CH1DrRhLoulaBmt5xxqK9fxWtslrlsnm1uNza5vs8As8CzM apnmdRIf5p4v91Zic3PFH7/GXES0m1tjIBKdtZ4YHb8yrXV/kBsEVhhTjqE9mrUq qtRRl5waOFoP4yc9ey52PAbMm1x1Ho/pyunpM0xh40Yq8OPFwqXBPTnWfobSoiM= =LNQc -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM fixes from Paolo Bonzini: "More bugfixes, including a few remaining "make W=1" issues such as too large frame sizes on some configurations. On the ARM side, the compiler was messing up shadow stacks between EL1 and EL2 code, which is easily fixed with __always_inline" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: VMX: check descriptor table exits on instruction emulation kvm: x86: Limit the number of "kvm: disabled by bios" messages KVM: x86: avoid useless copy of cpufreq policy KVM: allow disabling -Werror KVM: x86: allow compiling as non-module with W=1 KVM: Pre-allocate 1 cpumask variable per cpu for both pv tlb and pv ipis KVM: Introduce pv check helpers KVM: let declaration of kvm_get_running_vcpus match implementation KVM: SVM: allocate AVIC data structures based on kvm_amd module parameter arm64: Ask the compiler to __always_inline functions used by KVM at HYP KVM: arm64: Define our own swab32() to avoid a uapi static inline KVM: arm64: Ask the compiler to __always_inline functions used at HYP kvm: arm/arm64: Fold VHE entry/exit work into kvm_vcpu_run_vhe() KVM: arm/arm64: Fix up includes for trace.h |
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Paolo Bonzini
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e951445f4d |
KVM/arm fixes for 5.6, take #1
- Fix compilation on 32bit - Move VHE guest entry/exit into the VHE-specific entry code - Make sure all functions called by the non-VHE HYP code is tagged as __always_inline -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAl5VsNMPHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpDLhUQAIsecO9IyYjy1J0Q5AxaKLL7NuKYlAaty2xX uY6UkTfPNsEaHFXSGYXWPDxrmkgArp2wuy4WVQB59Om00+LE7h9kiz7+xKpcUy1G UoHa5mzMlqoOeUIWO/oSU6LYHhYDnIpHTDco93YrscU4nNRevJZ/GVeuQeMblzuZ Sg7cWc+0V43FXUt9Jw8BsNhXH/D0l0p3v86p7GZLcSfFAccO62YfOwC8J/znLPym 4S+O9RYQkCczvzFeQVYQwqImOAunaOb0OzERUbm8icOF6ekYGwywjrtlmAC/3q+q 1g/te1yfwQ8fpprWl4QSH0sQVdfAcxdDZqcWtN2LhNaEShZtNa5yKpsRGn1V0eAS tIO8eexAKCXoASHrrwfSkizYjRAeDabmodBQmS50/isY9OdBE2tDel+BLrCjzBJ2 hABwEZ3Q78216EuoqsZqWaEUZ3ck0iSW3IcXglmHE4TC8Iq6dwskvOPjay+msHr9 dcHDCxFIN4jzv9QcpKN8LkxfmW0Us28bzap3OhKfrz0nv7b4n+j0q1xbKL1QnN/l RcDPW0dQeXuX9vYMeYIUDQcV4IgTUkF6IPDCRW7KCApi98HfPTbrfQ97nir79zDp pD8NXaNFr4PtxJoheYYia3sjZMt/fgfvP2dM32iOpsMu7W1FXdfQN7heNSc6MQmO ciyhf/mj =NpPo -----END PGP SIGNATURE----- Merge tag 'kvmarm-fixes-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm fixes for 5.6, take #1 - Fix compilation on 32bit - Move VHE guest entry/exit into the VHE-specific entry code - Make sure all functions called by the non-VHE HYP code is tagged as __always_inline |
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James Morse
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e43f1331e2 |
arm64: Ask the compiler to __always_inline functions used by KVM at HYP
KVM uses some of the static-inline helpers like icache_is_vipt() from its HYP code. This assumes the function is inlined so that the code is mapped to EL2. The compiler may decide not to inline these, and the out-of-line version may not be in the __hyp_text section. Add the additional __always_ hint to these static-inlines that are used by KVM. Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20200220165839.256881-4-james.morse@arm.com |
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James Morse
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8c2d146ee7 |
KVM: arm64: Define our own swab32() to avoid a uapi static inline
KVM uses swab32() when mediating GIC MMIO accesses if the GICV is badly aligned, and the host and guest differ in endianness. arm64 doesn't provide a __arch_swab32(), so __fswab32() is always backed by the macro implementation that the compiler reduces to a single instruction. But the static-inline causes problems for KVM if the compiler chooses not to inline this function, it may not be located in the __hyp_text where __vgic_v2_perform_cpuif_access() needs it. Create our own __kvm_swab32() macro that calls ___constant_swab32() directly. This way we know it will always be inlined. Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200220165839.256881-3-james.morse@arm.com |
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James Morse
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5c37f1ae1c |
KVM: arm64: Ask the compiler to __always_inline functions used at HYP
On non VHE CPUs, KVM's __hyp_text contains code run at EL2 while the rest of the kernel runs at EL1. This code lives in its own section with start and end markers so we can map it to EL2. The compiler may decide not to inline static-inline functions from the header file. It may also decide not to put these out-of-line functions in the same section, meaning they aren't mapped when called at EL2. Clang-9 does exactly this with __kern_hyp_va() and a few others when x18 is reserved for the shadow call stack. Add the additional __always_ hint to all the static-inlines that are called from a hyp file. Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200220165839.256881-2-james.morse@arm.com ---- kvm_get_hyp_vector() pulls in all the regular per-cpu accessors and this_cpu_has_cap(), fortunately its only called for VHE. |
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Linus Torvalds
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63f01d852c |
arm64 fixes for -rc3
- Fix regression in malloc() caused by ignored address tags in brk() - Add missing brackets around argument to untagged_addr() macro - Fix clang build when using binutils assembler - Fix silly typo in virtual memory map documentation -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl5P2VIQHHdpbGxAa2Vy bmVsLm9yZwAKCRC3rHDchMFjNNn9CACN/C0aTsRT+22ABPahHcnnyQgsETMOS3Up M/edlPMUI5qK8IcIBt/PKswzBKlwMpI/pCWxfn/kwdq9u0ho3IASnqtaBVcm7yjt d/4DX5GhwJBdv6q6N+vjacrqs3e/xCiDiWqLvhEVZXTFuDxNMziCfloP6sDBxmYu E0+zuZnMbVemgV7USo+7QXMeNb7kFwP6fmJN0cr/FG7N4orms2zygs6mhg/ogpkH zdl7Ze6DdC5+ChLpLhGXEuA2+Gyv+tWoE7A1EXnTGSEEQXmH7FkaZOJxAuSbWgw6 8Gcul+0JSHRBHN876oqS9aSr88ZiZDZkccC2gLW2Off6vvv8Rgog =ehao -----END PGP SIGNATURE----- Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "It's all straightforward apart from the changes to mmap()/mremap() in relation to their handling of address arguments from userspace with non-zero tag bits in the upper byte. The change to brk() is necessary to fix a nasty user-visible regression in malloc(), but we tightened up mmap() and mremap() at the same time because they also allow the user to create virtual aliases by accident. It's much less likely than brk() to matter in practice, but enforcing the principle of "don't permit the creation of mappings using tagged addresses" leads to a straightforward ABI without having to worry about the "but what if a crazy program did foo?" aspect of things. Summary: - Fix regression in malloc() caused by ignored address tags in brk() - Add missing brackets around argument to untagged_addr() macro - Fix clang build when using binutils assembler - Fix silly typo in virtual memory map documentation" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: mm: Avoid creating virtual address aliases in brk()/mmap()/mremap() docs: arm64: fix trivial spelling enought to enough in memory.rst arm64: memory: Add missing brackets to untagged_addr() macro arm64: lse: Fix LSE atomics with LLVM |
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Will Deacon
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d0022c0ef2 |
arm64: memory: Add missing brackets to untagged_addr() macro
Add brackets around the evaluation of the 'addr' parameter to the
untagged_addr() macro so that the cast to 'u64' applies to the result
of the expression.
Cc: <stable@vger.kernel.org>
Fixes:
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Vincenzo Frascino
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dd1f6308b2 |
arm64: lse: Fix LSE atomics with LLVM
Commit |
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Mark Rutland
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b3f15ec3d8 |
kvm: arm/arm64: Fold VHE entry/exit work into kvm_vcpu_run_vhe()
With VHE, running a vCPU always requires the sequence: 1. kvm_arm_vhe_guest_enter(); 2. kvm_vcpu_run_vhe(); 3. kvm_arm_vhe_guest_exit() ... and as we invoke this from the shared arm/arm64 KVM code, 32-bit arm has to provide stubs for all three functions. To simplify the common code, and make it easier to make further modifications to the arm64-specific portions in the near future, let's fold kvm_arm_vhe_guest_enter() and kvm_arm_vhe_guest_exit() into kvm_vcpu_run_vhe(). The 32-bit stubs for kvm_arm_vhe_guest_enter() and kvm_arm_vhe_guest_exit() are removed, as they are no longer used. The 32-bit stub for kvm_vcpu_run_vhe() is left as-is. There should be no functional change as a result of this patch. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200210114757.2889-1-mark.rutland@arm.com |
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Linus Torvalds
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b719ae070e |
ARM: SoC fixes
A handful of fixes that have come in since the merge window:
- Fix of PCI interrupt map on arm64 fast model (SW emulator)
- Fixlet for sound on ST platforms and a small cleanup of deprecated DT properties
- A stack buffer overflow fix for moxtet
- Fuse driver build fix for Tegra194
- A few config updates to turn on new drivers merged this cycle
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"A handful of fixes that have come in since the merge window:
- Fix of PCI interrupt map on arm64 fast model (SW emulator)
- Fixlet for sound on ST platforms and a small cleanup of deprecated
DT properties
- A stack buffer overflow fix for moxtet
- Fuse driver build fix for Tegra194
- A few config updates to turn on new drivers merged this cycle"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
bus: moxtet: fix potential stack buffer overflow
soc/tegra: fuse: Fix build with Tegra194 configuration
ARM: dts: sti: fixup sound frame-inversion for stihxxx-b2120.dtsi
ARM: dts: sti: Remove deprecated snps PHY properties for stih410-b2260
arm64: defconfig: Enable DRM_SUN6I_DSI
arm64: defconfig: Enable CONFIG_SUN8I_THERMAL
ARM: sunxi: Enable CONFIG_SUN8I_THERMAL
arm64: defconfig: Set bcm2835-dma as built-in
ARM: configs: Cleanup old Kconfig options
ARM: npcm: Bring back GPIOLIB support
arm64: dts: fast models: Fix FVP PCI interrupt-map property
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Geert Uytterhoeven
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d91771848f |
arm64: time: Replace <linux/clk-provider.h> by <linux/of_clk.h>
The arm64 time code is not a clock provider, and just needs to call of_clk_init(). Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>. Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Will Deacon <will@kernel.org> |
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Olof Johansson
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d7a9c59511 |
This pull request contains ARM64 defconfig changes for v5.6, please pull
the following: - Nicolas enables the BCM2835 DMA engine controller as built-in since the bcm2835 SD host controller depends on the DMA engine to be available. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEm+Rq3+YGJdiR9yuFh9CWnEQHBwQFAl5A4jIACgkQh9CWnEQH BwSiXRAAn8P2xYk0way0VGGBDNNCbm7k9Y63RQBu4XImn1bD3DiJsujjn5Kzs1tu 5JVPkWabrSykngXVxzPN2C9UpW08AnfLqSz1Z3+01EIHYXPrmPLUhFxbvIwxNZu3 gH06puSx+Xk3OORdPgZyjjI82RAEnwmiAm7xxZIwsO9NB39dRcy0SVwd6ovhkvl7 UV4k1Mj6WsGCPD7I6r3P1S9wEWE9lt7cIWyTI9rPm5DJCl6LesY81eyGCrF1fFMn amiXj+WKU04q4PfT8AJpx1p+VdX1q1655PrHtp0qmt4QMSOQ6GfcEPXPnR4VqWX2 5oKvvokGQrPSWNBQcqTi/I2bXEyxQzZKkN5nhhbjL0OSzefqD1eQq19ktz/osN9H lfLUN3FxiBh2jUkcjpL9/hKi2qnPxhcWWb+fB8mCvEldfTlk7N2OGjgkj+me3nOd dz1tipKrG4iB6J5MKjVSn56SfJRlPmEY9DgABV4ckLCe+e8i//+Nfz+v9qDdE5Kw 5M6dOzUsLmfJL4lnE0fCN342cVrUZ5aqX4F4W+Xd9b+Fm6W/Oyv7VD2qmhY3w7qO MvlkCDY231lDFOd7izixiga9rzkrkQ5Bk6SxySlN47XcHBSo8LHA5iV7aty1X0Z+ jNhIhRkM5arkOmh5AIMjbGUFSEaGswAF0xh/M4t7c1HFijxBTI0= =8I22 -----END PGP SIGNATURE----- Merge tag 'arm-soc/for-5.6/defconfig-arm64-fixes' of https://github.com/Broadcom/stblinux into arm/fixes This pull request contains ARM64 defconfig changes for v5.6, please pull the following: - Nicolas enables the BCM2835 DMA engine controller as built-in since the bcm2835 SD host controller depends on the DMA engine to be available. * tag 'arm-soc/for-5.6/defconfig-arm64-fixes' of https://github.com/Broadcom/stblinux: arm64: defconfig: Set bcm2835-dma as built-in Link: https://lore.kernel.org/r/20200210145621.22599-1-f.fainelli@gmail.com Signed-off-by: Olof Johansson <olof@lixom.net> |
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Olof Johansson
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0eaa9fc1d7 |
Two patches to enable the new thermal sensor driver found on newer
Allwinner SoCs and to enable the MIPI-DSI controller. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXkETWgAKCRDj7w1vZxhR xZ2bAQDjhv+kf69iu8WvpnDON7lA888mYNY+kxF29UnbR9osbwEA/yNEgWBsu2SQ k2P2S8vbutHk3qebj/839D21KAMJpAc= =4enS -----END PGP SIGNATURE----- Merge tag 'sunxi-config64-for-5.6-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes Two patches to enable the new thermal sensor driver found on newer Allwinner SoCs and to enable the MIPI-DSI controller. * tag 'sunxi-config64-for-5.6-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: arm64: defconfig: Enable DRM_SUN6I_DSI arm64: defconfig: Enable CONFIG_SUN8I_THERMAL Link: https://lore.kernel.org/r/283eb531-890f-4ab2-95b5-898301af9807.lettre@localhost Signed-off-by: Olof Johansson <olof@lixom.net> |
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Olof Johansson
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1b32b72b27 |
Linux 5.6-rc1
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl5AnxkeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGca0H+QHA5sm2Mxlg/4hk E3M+vDPwn69KeHAVL6OUl3LT03J1+KuBdtAcbHlTm6ikBBHVghKySSVVixguZnOO rExO9o7vVIto/HpzLWgWPHoFj9Z5ij/Xn0O+QD1qY1pbwuKPV4w6U/NpyN48nv6L gsVmhS9Z8FzNqvyyqXmiuxoVN3tYdhcoRtNMpgG0jkvgGMy0nGzhjCJGqnRiXKGo Xu1zNRJ7SUsp3/hzDAKm0WNSa+gEVAJEGjb/JYAu01XoXxX3Z8OxeOdygmmV3a7t dGW1yTsWOSZlRMPRu4TI+ktTNvYldXn8qRPmjilVaDtdvzayL/4JM2ZnAg5SlnBB Qb+qBc8= =6xDw -----END PGP SIGNATURE----- Merge tag 'v5.6-rc1' into arm/fixes Linux 5.6-rc1 Merging in to avoid fixes pull request diffstats being noisy due to being based on -rc1. Signed-off-by: Olof Johansson <olof@lixom.net> |
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Olof Johansson
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9c87d747ca |
ARMv8 Juno/Fast Models fix for v5.6
A single fix for PCI interrupt-mapping on FVP Rev C model. This is present since the platform was added. This fix is needed to get VFIO working correctly on this model. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEunHlEgbzHrJD3ZPhAEG6vDF+4pgFAl40MPwACgkQAEG6vDF+ 4phgcg//aHgS8r9D/LyZeUhbcSOGjQvhv7uWwdS6aKnA/vhAShaIkIWjmRUxuYpf me+xfymQ8HZ2KGsqKx/sBaXBTEiDI65yDner436QlWi4jf78nA9TdjMFTnSuK/4g MvAU4sYVE+zhwC4oMiWIDR2nU32Du+2oBJhkvr2hkCX5fM8JK/aU6i4nUqcIcXhR VSwqA+sbngf2z/MMVQBkWHCNrXk7OC3Lloo5ZcYDUnqJI+jYWG5/5mhLxT907E/X ChF4tKW+uhefI2xua9E0F+FBYaYsBmYiFlMaXZA+KtSmx+hjvd7TTYZHIJJcFQff J5F8b4IZW23xHK2eIAZ7EkLEpm4wEpMjVlDsvHTHcxWB/rQoJEjBxEOWgfZwPyLP 6m+EgSF0Iq/n7DaoXRFJKZZtaSbj7htIMF9LodxjhGwsedRHJf+zmsEUOMgOQBRa 63eEYB4rt8NB95RnYElZw1Au86YBP03PynN5IZ9l3X4dpTd+unFs9vMriMnVNyCC 8aW1g3RmRxqZh4qt31z6rS0lUbRePMMEIcqOuzhIm81AEzJvee22Urv9w9sC/uWC LypR/XPiuN2/bExl+Z2qtj+D1RLiRjVhGfT8ISnyg7x8nI1d9HynDrYhu2yR9mS/ qLkHPHqijTt5aPakazstHXfbINjj6We3rzI9F58kxlWyavLD9c8= =2d1/ -----END PGP SIGNATURE----- Merge tag 'juno-fix-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes ARMv8 Juno/Fast Models fix for v5.6 A single fix for PCI interrupt-mapping on FVP Rev C model. This is present since the platform was added. This fix is needed to get VFIO working correctly on this model. * tag 'juno-fix-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: arm64: dts: fast models: Fix FVP PCI interrupt-map property Link: https://lore.kernel.org/r/20200205183423.GF38466@bogus Signed-off-by: Olof Johansson <olof@lixom.net> |
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Robin Murphy
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74a44bed8d |
arm64: Fix CONFIG_ARCH_RANDOM=n build
The entire asm/archrandom.h header is generically included via linux/archrandom.h only when CONFIG_ARCH_RANDOM is already set, so the stub definitions of __arm64_rndr() and __early_cpu_has_rndr() are only visible to KASLR if it explicitly includes the arch-internal header. Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will@kernel.org> |
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Qian Cai
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345d52c184 |
arm64/spinlock: fix a -Wunused-function warning
The commit |
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Will Deacon
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fca3d33d8a |
arm64: ssbs: Fix context-switch when SSBS is present on all CPUs
When all CPUs in the system implement the SSBS extension, the SSBS field
in PSTATE is the definitive indication of the mitigation state. Further,
when the CPUs implement the SSBS manipulation instructions (advertised
to userspace via an HWCAP), EL0 can toggle the SSBS field directly and
so we cannot rely on any shadow state such as TIF_SSBD at all.
Avoid forcing the SSBS field in context-switch on such a system, and
simply rely on the PSTATE register instead.
Cc: <stable@vger.kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Srinivas Ramana <sramana@codeaurora.org>
Fixes:
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Matteo Croce
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2c614c1194 |
arm64: use shared sysctl constants
Use shared sysctl variables for zero and one constants, as in commit |
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Anshuman Khandual
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5cb7a1113f |
arm64: Drop do_el0_ia_bp_hardening() & do_sp_pc_abort() declarations
There is a redundant do_sp_pc_abort() declaration in exceptions.h which can
be removed. Also do_el0_ia_bp_hardening() as been already been dropped with
the commit
|
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Jagan Teki
|
03c6bf4644
|
arm64: defconfig: Enable DRM_SUN6I_DSI
Now, Allwiner MIPI-DSI support is available for ARM64 Allwinner SoC like A64. So, let's build it as a module. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> |
||
Yangtao Li
|
4a453ccf87
|
arm64: defconfig: Enable CONFIG_SUN8I_THERMAL
Many sunxi based board needs CONFIG_SUN8I_THERMAL for thermal support. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> |
||
Nicolas Saenz Julienne
|
f166795871 |
arm64: defconfig: Set bcm2835-dma as built-in
With the introduction of |
||
|
Linus Torvalds
|
89a47dd1af |
Kbuild updates for v5.6 (2nd)
- fix randconfig to generate a sane .config
- rename hostprogs-y / always to hostprogs / always-y, which are
more natual syntax.
- optimize scripts/kallsyms
- fix yes2modconfig and mod2yesconfig
- make multiple directory targets ('make foo/ bar/') work
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Merge tag 'kbuild-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- fix randconfig to generate a sane .config
- rename hostprogs-y / always to hostprogs / always-y, which are more
natual syntax.
- optimize scripts/kallsyms
- fix yes2modconfig and mod2yesconfig
- make multiple directory targets ('make foo/ bar/') work
* tag 'kbuild-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: make multiple directory targets work
kconfig: Invalidate all symbols after changing to y or m.
kallsyms: fix type of kallsyms_token_table[]
scripts/kallsyms: change table to store (strcut sym_entry *)
scripts/kallsyms: rename local variables in read_symbol()
kbuild: rename hostprogs-y/always to hostprogs/always-y
kbuild: fix the document to use extra-y for vmlinux.lds
kconfig: fix broken dependency in randconfig-generated .config
|
||
|
Linus Torvalds
|
f06bed87d7 |
A set of fixes for the interrupt subsystem:
- Provision only ACPI enabled redistributors on GICv3
- Use the proper command colums when building the INVALL command for the
GICv3-ITS
- Ensure the allocation of the L2 vPE table for GICv4.1
- Correct the GICv4.1 VPROBASER programming so it uses the proper size
- A set of small GICv4.1 tidy up patches
- Configuration cleanup for C-SKY interrupt chip
- Clarify the function documentation for irq_set_wake() to document that
the wakeup functionality is orthogonal to the irq disable/enable
mechanism.
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Merge tag 'irq-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull interrupt fixes from Thomas Gleixner:
"A set of fixes for the interrupt subsystem:
- Provision only ACPI enabled redistributors on GICv3
- Use the proper command colums when building the INVALL command for
the GICv3-ITS
- Ensure the allocation of the L2 vPE table for GICv4.1
- Correct the GICv4.1 VPROBASER programming so it uses the proper
size
- A set of small GICv4.1 tidy up patches
- Configuration cleanup for C-SKY interrupt chip
- Clarify the function documentation for irq_set_wake() to document
that the wakeup functionality is orthogonal to the irq
disable/enable mechanism"
* tag 'irq-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v3-its: Rename VPENDBASER/VPROPBASER accessors
irqchip/gic-v3-its: Remove superfluous WARN_ON
irqchip/gic-v4.1: Drop 'tmp' in inherit_vpe_l1_table_from_rd()
irqchip/gic-v4.1: Ensure L2 vPE table is allocated at RD level
irqchip/gic-v4.1: Set vpe_l1_base for all redistributors
irqchip/gic-v4.1: Fix programming of GICR_VPROPBASER_4_1_SIZE
genirq: Clarify that irq wake state is orthogonal to enable/disable
irqchip/gic-v3-its: Reference to its_invall_cmd descriptor when building INVALL
irqchip: Some Kconfig cleanup for C-SKY
irqchip/gic-v3: Only provision redistributors that are enabled in ACPI
|
||
|
Linus Torvalds
|
5939224ccd |
ARM: SoC defconfig updates
We keep this in a separate branch to avoid cross-branch conflicts, but most of the material here is fairly boring -- some new drivers turned on for hardware since they were merged, and some refreshed files due to time having moved a lot of entries around. -----BEGIN PGP SIGNATURE----- iQJDBAABCAAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAl4+kqgPHG9sb2ZAbGl4 b20ubmV0AAoJEIwa5zzehBx3l6gP/1hleyYLDm502+hzb/mFS1fUQ/JHH1/RK/J5 JhcDL2mcSLMIvLCWEl/XO0UA7wxrsVwV7mqmd2ChvHWIyXfZQG+T0gYGoXPGPxZp BDYHJ8E+pDT3v1owouBd1qA7a+d/D3FBJKwSI53j2PIQpH9xyTlBWxosQxhPGb33 E1BV8x2W3nIU5gLHI0KnjEXgLPXngWLn43Za9wnPGkxflCYKi9SAPg4o0NBIXmJH Fbi5QsGnhtogtQrPvOiJnYj0PgapxJPEhelZAY8wKYcjnjonELxTeAPRJ1EyBv6I wZiR5/ySZMRQR8mvjF7EO2q1W8VmxjAYHbld0SgaZkfvy8BcgH5YkprPpvSn9Y2C 4Ivs80LBc2Qqdq8887tarDz1QYY5NJPiOFEnJtwC0FcoNmfHETxdlefwS4fiJoBe axF6B5jDkKPiyxbVF+EbcdImGRN+WnNiKXTvJTGHXBuOZMMGNXqJPpD0Nxix7wQB oxkkbg1NGpGIgIT6q1RyHPpddkqSPKOI8gDRTMhQhL5FcYs69xBoWQ12rFuFyMHO gJeWCTRuLs4VVhpEhmQ8UwxSVkQz6XApvTbok3h822nHE1L8RgFuuLgCNmZQQP3C 89vOYtceEeGVSO2imkvA0pHM9Xv+/J1KviphCgzjmBi68dtBpFw8sVIus13tLUzC WDcR9GwC =8F5r -----END PGP SIGNATURE----- Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC defconfig updates from Olof Johansson: "We keep this in a separate branch to avoid cross-branch conflicts, but most of the material here is fairly boring -- some new drivers turned on for hardware since they were merged, and some refreshed files due to time having moved a lot of entries around" * tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (38 commits) ARM: configs: at91: enable MMC_SDHCI_OF_AT91 and MICROCHIP_PIT64B arm64: defconfig: Enable Broadcom's GENET Ethernet controller ARM: multi_v7_defconfig: Enable devfreq thermal integration ARM: exynos_defconfig: Enable devfreq thermal integration ARM: multi_v7_defconfig: Enable NFS v4.1 and v4.2 ARM: exynos_defconfig: Enable NFS v4.1 and v4.2 arm64: defconfig: Enable Actions Semi specific drivers arm64: defconfig: Enable Broadcom's STB PCIe controller arm64: defconfig: Enable CONFIG_CLK_IMX8MP by default ARM: configs: at91: enable config flags for sam9x60 SoC ARM: configs: at91: use savedefconfig arm64: defconfig: Enable tegra XUDC support ARM: defconfig: gemini: Update defconfig arm64: defconfig: enable CONFIG_ARM_QCOM_CPUFREQ_NVMEM arm64: defconfig: enable CONFIG_QCOM_CPR arm64: defconfig: Enable HFPLL arm64: defconfig: Enable CRYPTO_DEV_FSL_CAAM ARM: imx_v6_v7_defconfig: Select the TFP410 driver ARM: imx_v6_v7_defconfig: Enable NFS_V4_1 and NFS_V4_2 support arm64: defconfig: Enable ATH10K_SNOC ... |
||
|
Linus Torvalds
|
eab3540562 |
ARM: SoC-related driver updates
Various driver updates for platforms:
- Nvidia: Fuse support for Tegra194, continued memory controller pieces
for Tegra30
- NXP/FSL: Refactorings of QuickEngine drivers to support ARM/ARM64/PPC
- NXP/FSL: i.MX8MP SoC driver pieces
- TI Keystone: ring accelerator driver
- Qualcomm: SCM driver cleanup/refactoring + support for new SoCs.
- Xilinx ZynqMP: feature checking interface for firmware. Mailbox
communication for power management
- Overall support patch set for cpuidle on more complex hierarchies
(PSCI-based)
+ Misc cleanups, refactorings of Marvell, TI, other platforms.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC-related driver updates from Olof Johansson:
"Various driver updates for platforms:
- Nvidia: Fuse support for Tegra194, continued memory controller
pieces for Tegra30
- NXP/FSL: Refactorings of QuickEngine drivers to support
ARM/ARM64/PPC
- NXP/FSL: i.MX8MP SoC driver pieces
- TI Keystone: ring accelerator driver
- Qualcomm: SCM driver cleanup/refactoring + support for new SoCs.
- Xilinx ZynqMP: feature checking interface for firmware. Mailbox
communication for power management
- Overall support patch set for cpuidle on more complex hierarchies
(PSCI-based)
and misc cleanups, refactorings of Marvell, TI, other platforms"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (166 commits)
drivers: soc: xilinx: Use mailbox IPI callback
dt-bindings: power: reset: xilinx: Add bindings for ipi mailbox
drivers: soc: ti: knav_qmss_queue: Pass lockdep expression to RCU lists
MAINTAINERS: Add brcmstb PCIe controller entry
soc/tegra: fuse: Unmap registers once they are not needed anymore
soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
soc/tegra: fuse: Warn if straps are not ready
soc/tegra: fuse: Cache values of straps and Chip ID registers
memory: tegra30-emc: Correct error message for timed out auto calibration
memory: tegra30-emc: Firm up hardware programming sequence
memory: tegra30-emc: Firm up suspend/resume sequence
soc/tegra: regulators: Do nothing if voltage is unchanged
memory: tegra: Correct reset value of xusb_hostr
soc/tegra: fuse: Add APB DMA dependency for Tegra20
bus: tegra-aconnect: Remove PM_CLK dependency
dt-bindings: mediatek: add MT6765 power dt-bindings
soc: mediatek: cmdq: delete not used define
memory: tegra: Add support for the Tegra194 memory controller
memory: tegra: Only include support for enabled SoCs
memory: tegra: Support DVFS on Tegra186 and later
...
|
||
|
Linus Torvalds
|
1afa9c3b7c |
ARM: Device-tree updates
New SoCs:
- Atmel/Microchip SAM9X60 (ARM926 SoC)
- OMAP 37xx gets split into AM3703/AM3715/DM3725, who are all variants
of it with different GPU/media IP configurations.
- ST stm32mp15 SoCs (1-2 Cortex-A7, CAN, GPU depending on SKU)
- ST Ericsson ab8505 (variant of ab8500) and db8520 (variant of db8500)
- Unisoc SC9863A SoC (8x Cortex-A55 mobile chipset w/ GPU, modem)
- Qualcomm SC7180 (8-core 64bit SoC, unnamed CPU class)
New boards:
- Allwinner
+ Emlid Neutis SoM (H3 variant)
+ Libre Computer ALL-H3-IT
+ PineH64 Model B
- Amlogic
+ Libretech Amlogic GX PC (s905d and s912-based variants)
- Atmel/Microchip:
+ Kizboxmini, sam9x60 EK, sama5d27 Wireless SOM (wlsom1)
- Marvell:
+ Armada 385-based SolidRun Clearfog GTR
- NXP:
+ Gateworks GW59xx boards based on i.MX6/6Q/6QDL
+ Tolino Shine 3 eBook reader (i.MX6sl)
+ Embedded Artists COM (i.MX7ULP)
+ SolidRun CLearfog CX/ITX and HoneyComb (LX2160A-based systems)
+ Google Coral Edge TPU (i.MX8MQ)
- Rockchip
+ Radxa Dalang Carrier (supports rk3288 and rk3399 SOMs)
+ Radxa Rock Pi N10 (RK3399Pro-based)
+ VMARC RK3399Pro SOM
- ST
+ Reference boards for stm32mp15
- ST Ericsson
+ Samsung Galaxy S III mini (GT-I8190)
+ HREF520 reference board for DB8520
- TI OMAP
+ Gen1 Amazon Echo (OMAP3630-based)
- Qualcomm
+ Inforce 6640 Single Board Computer (msm8996-based)
+ SC7180 IDP (SC7180-based)
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM Device-tree updates from Olof Johansson:
"New SoCs:
- Atmel/Microchip SAM9X60 (ARM926 SoC)
- OMAP 37xx gets split into AM3703/AM3715/DM3725, who are all
variants of it with different GPU/media IP configurations.
- ST stm32mp15 SoCs (1-2 Cortex-A7, CAN, GPU depending on SKU)
- ST Ericsson ab8505 (variant of ab8500) and db8520 (variant of
db8500)
- Unisoc SC9863A SoC (8x Cortex-A55 mobile chipset w/ GPU, modem)
- Qualcomm SC7180 (8-core 64bit SoC, unnamed CPU class)
New boards:
- Allwinner:
+ Emlid Neutis SoM (H3 variant)
+ Libre Computer ALL-H3-IT
+ PineH64 Model B
- Amlogic:
+ Libretech Amlogic GX PC (s905d and s912-based variants)
- Atmel/Microchip:
+ Kizboxmini, sam9x60 EK, sama5d27 Wireless SOM (wlsom1)
- Marvell:
+ Armada 385-based SolidRun Clearfog GTR
- NXP:
+ Gateworks GW59xx boards based on i.MX6/6Q/6QDL
+ Tolino Shine 3 eBook reader (i.MX6sl)
+ Embedded Artists COM (i.MX7ULP)
+ SolidRun CLearfog CX/ITX and HoneyComb (LX2160A-based systems)
+ Google Coral Edge TPU (i.MX8MQ)
- Rockchip:
+ Radxa Dalang Carrier (supports rk3288 and rk3399 SOMs)
+ Radxa Rock Pi N10 (RK3399Pro-based)
+ VMARC RK3399Pro SOM
- ST:
+ Reference boards for stm32mp15
- ST Ericsson:
+ Samsung Galaxy S III mini (GT-I8190)
+ HREF520 reference board for DB8520
- TI OMAP:
+ Gen1 Amazon Echo (OMAP3630-based)
- Qualcomm:
+ Inforce 6640 Single Board Computer (msm8996-based)
+ SC7180 IDP (SC7180-based)"
* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (623 commits)
dt-bindings: fix compilation error of the example in marvell,mmp3-hsic-phy.yaml
arm64: dts: ti: k3-am654-base-board: Add CSI2 OV5640 camera
arm64: dts: ti: k3-am65-main Add CAL node
arm64: dts: ti: k3-j721e-main: Add McASP nodes
arm64: dts: ti: k3-am654-main: Add McASP nodes
arm64: dts: ti: k3-j721e: DMA support
arm64: dts: ti: k3-j721e-main: Move secure proxy and smmu under main_navss
arm64: dts: ti: k3-j721e-main: Correct main NAVSS representation
arm64: dts: ti: k3-j721e: Correct the address for MAIN NAVSS
arm64: dts: ti: k3-am65: DMA support
arm64: dts: ti: k3-am65-main: Move secure proxy under cbass_main_navss
arm64: dts: ti: k3-am65-main: Correct main NAVSS representation
ARM: dts: aspeed: rainier: Add UCD90320 power sequencer
ARM: dts: aspeed: rainier: Switch PSUs to unknown version
arm64: dts: rockchip: Kill off "simple-panel" compatibles
ARM: dts: rockchip: Kill off "simple-panel" compatibles
arm64: dts: rockchip: rename dwmmc node names to mmc
ARM: dts: rockchip: rename dwmmc node names to mmc
arm64: dts: exynos: Rename Samsung and Exynos to lowercase
arm64: dts: uniphier: add reset-names to NAND controller node
...
|
||
Thomas Gleixner
|
2f86e45a7f |
irqchip fixes for 5.6, take #1
- Guarantee allocation of L2 vPE table for GICv4.1 - Fix GICv4.1 VPROPBASER programming - Numerous GICv4.1 tidy ups - Fix disabled GICv3 redistributor provisioning with ACPI - KConfig cleanup for C-SKY -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAl4+nyAPHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpDNDAP/2Us9avq4NnTk9x8Kbe7Y6mCgBHcqFLfLH+t yiwGK+TbTvFoy9SXdlD9NCoTIKQGDH1qmWj9PG9WKUOGEpwYuerRmie2H3Lk9pF+ KYcHmXi9PTfDmkFBavIupf+l7+PBj3CZa3pVqy/6Wo2iMbItZmJqLlPFqX3rmMbj NqAZWfs9nBtWqa5e8g99g233VAVW7JqEnCZJQdkD6Bm+IGWVX0cUQWftrCYkhkQl iLIpxc0lKuxydtGAeAZqvWJqkz+xd6k+UpxCoCwiORAaE8j6U0UPPJZmqu5JKBdN 8nKwpya9eZzKxBTurmdiqXdgGfNfxyAG0SR8wgU80RrM6UzciJNlk/yYgCfRSpar zGhaKbqM2AauDULfmal09OIMnvrBW+8Swk36VeDVHzkjdBymaA2Tare9feeOHv6b eLVVIwQdPnNf5yB6lKWJpp1d5BIh+asASMpuyO10dMBfSMvyOqe1VhlPaInRQqh3 qDaSdbKXR19aEZ3NTtps/3rRYPsAU2K/3gacraEMj5E1EW6aRoODjOzl3G0Gr23+ f01VyKLgMs7PWCUBdcHNUrk8CBAELFZ6C/6KCXOPgnG445NpGt3BkAHvNCEvCqqQ EDPdImBeZzEi2u+/61567Irb/WwrbKrtWGYE8fESiaCK93eVHqxTUcSboIwWGz/s WNJdP8QZ =DQlH -----END PGP SIGNATURE----- Merge tag 'irqchip-fixes-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent Pull irqchip fixes for 5.6, take #1 from Marc Zyngier: - Guarantee allocation of L2 vPE table for GICv4.1 - Fix GICv4.1 VPROPBASER programming - Numerous GICv4.1 tidy ups - Fix disabled GICv3 redistributor provisioning with ACPI - KConfig cleanup for C-SKY |
||
Zenghui Yu
|
5186a6cc3e |
irqchip/gic-v3-its: Rename VPENDBASER/VPROPBASER accessors
V{PEND,PROP}BASER registers are actually located in VLPI_base frame
of the *redistributor*. Rename their accessors to reflect this fact.
No functional changes.
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200206075711.1275-7-yuzenghui@huawei.com
|
||
|
Linus Torvalds
|
153b5c566d |
Microblaze patches for 5.6-rc1
- Enable CMA - Add support for MB v11 - Defconfig updates - Minor fixes -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQQbPNTMvXmYlBPRwx7KSWXLKUoMIQUCXjlJ1gAKCRDKSWXLKUoM IWy9AJ4tauV9sUb+zNadrYxI+2zemRstUwCfQ49LG4kHpFCv8ldSTmhBPJY/3MI= =QpT4 -----END PGP SIGNATURE----- Merge tag 'microblaze-v5.6-rc1' of git://git.monstr.eu/linux-2.6-microblaze Pull Microblaze update from Michal Simek: - enable CMA - add support for MB v11 - defconfig updates - minor fixes * tag 'microblaze-v5.6-rc1' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Add ID for Microblaze v11 microblaze: Prevent the overflow of the start microblaze: Wire CMA allocator asm-generic: Make dma-contiguous.h a mandatory include/asm header microblaze: Sync defconfig with latest Kconfig layout microblaze: defconfig: Disable EXT2 driver and Enable EXT3 & EXT4 drivers microblaze: Align comments with register usage |
||
Michal Simek
|
def3f7cefe |
asm-generic: Make dma-contiguous.h a mandatory include/asm header
dma-continuguous.h is generic for all architectures except arm32 which has
its own version.
Similar change was done for msi.h by commit
|
||
Peter Zijlstra
|
ff2e6d7259 |
asm-generic/tlb: rename HAVE_RCU_TABLE_FREE
Towards a more consistent naming scheme. [akpm@linux-foundation.org: fix sparc64 Kconfig] Link: http://lkml.kernel.org/r/20200116064531.483522-7-aneesh.kumar@linux.ibm.com Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Steven Price
|
e47690d756 |
x86: mm: avoid allocating struct mm_struct on the stack
struct mm_struct is quite large (~1664 bytes) and so allocating on the stack may cause problems as the kernel stack size is small. Since ptdump_walk_pgd_level_core() was only allocating the structure so that it could modify the pgd argument we can instead introduce a pgd override in struct mm_walk and pass this down the call stack to where it is needed. Since the correct mm_struct is now being passed down, it is now also unnecessary to take the mmap_sem semaphore because ptdump_walk_pgd() will now take the semaphore on the real mm. [steven.price@arm.com: restore missed arm64 changes] Link: http://lkml.kernel.org/r/20200108145710.34314-1-steven.price@arm.com Link: http://lkml.kernel.org/r/20200108145710.34314-1-steven.price@arm.com Signed-off-by: Steven Price <steven.price@arm.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Hogan <jhogan@kernel.org> Cc: James Morse <james.morse@arm.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: "Liang, Kan" <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Burton <paul.burton@mips.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Zong Li <zong.li@sifive.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Steven Price
|
f8f0d0b6fa |
mm: ptdump: reduce level numbers by 1 in note_page()
Rather than having to increment the 'depth' number by 1 in ptdump_hole(),
let's change the meaning of 'level' in note_page() since that makes the
code simplier.
Note that for x86, the level numbers were previously increased by 1 in
commit
|
||
|
Steven Price
|
9c7869c7f1 |
arm64: mm: display non-present entries in ptdump
Previously the /sys/kernel/debug/kernel_page_tables file would only show lines for entries present in the page tables. However it is useful to also show non-present entries as this makes the size and level of the holes more visible. This aligns the behaviour with x86 which also shows holes. Link: http://lkml.kernel.org/r/20191218162402.45610-23-steven.price@arm.com Signed-off-by: Steven Price <steven.price@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Hogan <jhogan@kernel.org> Cc: James Morse <james.morse@arm.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: "Liang, Kan" <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Burton <paul.burton@mips.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Zong Li <zong.li@sifive.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Steven Price
|
102f45fdbe |
arm64: mm: convert mm/dump.c to use walk_page_range()
Now walk_page_range() can walk kernel page tables, we can switch the arm64 ptdump code over to using it, simplifying the code. Link: http://lkml.kernel.org/r/20191218162402.45610-22-steven.price@arm.com Signed-off-by: Steven Price <steven.price@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Hogan <jhogan@kernel.org> Cc: James Morse <james.morse@arm.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: "Liang, Kan" <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Burton <paul.burton@mips.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Zong Li <zong.li@sifive.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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|
Steven Price
|
8aa82df3c1 |
arm64: mm: add p?d_leaf() definitions
walk_page_range() is going to be allowed to walk page tables other than those of user space. For this it needs to know when it has reached a 'leaf' entry in the page tables. This information will be provided by the p?d_leaf() functions/macros. For arm64, we already have p?d_sect() macros which we can reuse for p?d_leaf(). pud_sect() is defined as a dummy function when CONFIG_PGTABLE_LEVELS < 3 or CONFIG_ARM64_64K_PAGES is defined. However when the kernel is configured this way then architecturally it isn't allowed to have a large page at this level, and any code using these page walking macros is implicitly relying on the page size/number of levels being the same as the kernel. So it is safe to reuse this for p?d_leaf() as it is an architectural restriction. Link: http://lkml.kernel.org/r/20191218162402.45610-5-steven.price@arm.com Signed-off-by: Steven Price <steven.price@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Hogan <jhogan@kernel.org> Cc: James Morse <james.morse@arm.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: "Liang, Kan" <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Burton <paul.burton@mips.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Zong Li <zong.li@sifive.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Masahiro Yamada
|
5f2fb52fac |
kbuild: rename hostprogs-y/always to hostprogs/always-y
In old days, the "host-progs" syntax was used for specifying host
programs. It was renamed to the current "hostprogs-y" in 2004.
It is typically useful in scripts/Makefile because it allows Kbuild to
selectively compile host programs based on the kernel configuration.
This commit renames like follows:
always -> always-y
hostprogs-y -> hostprogs
So, scripts/Makefile will look like this:
always-$(CONFIG_BUILD_BIN2C) += ...
always-$(CONFIG_KALLSYMS) += ...
...
hostprogs := $(always-y) $(always-m)
I think this makes more sense because a host program is always a host
program, irrespective of the kernel configuration. We want to specify
which ones to compile by CONFIG options, so always-y will be handier.
The "always", "hostprogs-y", "hostprogs-m" will be kept for backward
compatibility for a while.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
|
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Linus Torvalds
|
e813e65038 |
ARM: Cleanups and corner case fixes
PPC: Bugfixes
x86:
* Support for mapping DAX areas with large nested page table entries.
* Cleanups and bugfixes here too. A particularly important one is
a fix for FPU load when the thread has TIF_NEED_FPU_LOAD. There is
also a race condition which could be used in guest userspace to exploit
the guest kernel, for which the embargo expired today.
* Fast path for IPI delivery vmexits, shaving about 200 clock cycles
from IPI latency.
* Protect against "Spectre-v1/L1TF" (bring data in the cache via
speculative out of bound accesses, use L1TF on the sibling hyperthread
to read it), which unfortunately is an even bigger whack-a-mole game
than SpectreV1.
Sean continues his mission to rewrite KVM. In addition to a sizable
number of x86 patches, this time he contributed a pretty large refactoring
of vCPU creation that affects all architectures but should not have any
visible effect.
s390 will come next week together with some more x86 patches.
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Merge tag 'kvm-5.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"This is the first batch of KVM changes.
ARM:
- cleanups and corner case fixes.
PPC:
- Bugfixes
x86:
- Support for mapping DAX areas with large nested page table entries.
- Cleanups and bugfixes here too. A particularly important one is a
fix for FPU load when the thread has TIF_NEED_FPU_LOAD. There is
also a race condition which could be used in guest userspace to
exploit the guest kernel, for which the embargo expired today.
- Fast path for IPI delivery vmexits, shaving about 200 clock cycles
from IPI latency.
- Protect against "Spectre-v1/L1TF" (bring data in the cache via
speculative out of bound accesses, use L1TF on the sibling
hyperthread to read it), which unfortunately is an even bigger
whack-a-mole game than SpectreV1.
Sean continues his mission to rewrite KVM. In addition to a sizable
number of x86 patches, this time he contributed a pretty large
refactoring of vCPU creation that affects all architectures but should
not have any visible effect.
s390 will come next week together with some more x86 patches"
* tag 'kvm-5.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (204 commits)
x86/KVM: Clean up host's steal time structure
x86/KVM: Make sure KVM_VCPU_FLUSH_TLB flag is not missed
x86/kvm: Cache gfn to pfn translation
x86/kvm: Introduce kvm_(un)map_gfn()
x86/kvm: Be careful not to clear KVM_VCPU_FLUSH_TLB bit
KVM: PPC: Book3S PR: Fix -Werror=return-type build failure
KVM: PPC: Book3S HV: Release lock on page-out failure path
KVM: arm64: Treat emulated TVAL TimerValue as a signed 32-bit integer
KVM: arm64: pmu: Only handle supported event counters
KVM: arm64: pmu: Fix chained SW_INCR counters
KVM: arm64: pmu: Don't mark a counter as chained if the odd one is disabled
KVM: arm64: pmu: Don't increment SW_INCR if PMCR.E is unset
KVM: x86: Use a typedef for fastop functions
KVM: X86: Add 'else' to unify fastop and execute call path
KVM: x86: inline memslot_valid_for_gpte
KVM: x86/mmu: Use huge pages for DAX-backed files
KVM: x86/mmu: Remove lpage_is_disallowed() check from set_spte()
KVM: x86/mmu: Fold max_mapping_level() into kvm_mmu_hugepage_adjust()
KVM: x86/mmu: Zap any compound page when collapsing sptes
KVM: x86/mmu: Remove obsolete gfn restoration in FNAME(fetch)
...
|
||
|
Paolo Bonzini
|
4cbc418a44 |
Merge branch 'cve-2019-3016' into kvm-next-5.6
From Boris Ostrovsky: The KVM hypervisor may provide a guest with ability to defer remote TLB flush when the remote VCPU is not running. When this feature is used, the TLB flush will happen only when the remote VPCU is scheduled to run again. This will avoid unnecessary (and expensive) IPIs. Under certain circumstances, when a guest initiates such deferred action, the hypervisor may miss the request. It is also possible that the guest may mistakenly assume that it has already marked remote VCPU as needing a flush when in fact that request had already been processed by the hypervisor. In both cases this will result in an invalid translation being present in a vCPU, potentially allowing accesses to memory locations in that guest's address space that should not be accessible. Note that only intra-guest memory is vulnerable. The five patches address both of these problems: 1. The first patch makes sure the hypervisor doesn't accidentally clear a guest's remote flush request 2. The rest of the patches prevent the race between hypervisor acknowledging a remote flush request and guest issuing a new one. Conflicts: arch/x86/kvm/x86.c [move from kvm_arch_vcpu_free to kvm_arch_vcpu_destroy] |
||
|
Paolo Bonzini
|
621ab20c06 |
KVM/arm updates for Linux 5.6
- Fix MMIO sign extension - Fix HYP VA tagging on tag space exhaustion - Fix PSTATE/CPSR handling when generating exception - Fix MMU notifier's advertizing of young pages - Fix poisoned page handling - Fix PMU SW event handling - Fix TVAL register access - Fix AArch32 external abort injection - Fix ITS unmapped collection handling - Various cleanups -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAl4y1z0PHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpDCsUQALsrDOOzbKPRfcJjk0+XSf3uDd9GvvQ6F48p zB8eerSZOSF4o/BMNHkcRkMaVyLRE9xzHYAfueaHYOFnaEHAO5YpMPE03Rme/SeM F3ZnT+iyt+GkbSRyJbR4u0QCuvhFSu8ve18TLRMDrFO6L8i/MH3AdexO9uWjKByI FBEUVNbq/nVma0I0DBcx2GeCKiu79O/Gf7qquRI8CnptmXvk/FFZz89bCxDLjRaM 3d9OGzXd5Diy4BrAVG5gHbSYaEZ8uId0ltxTuI1spk2ju5kJOW0NStDDMXRr5Dc8 0CXJmeQrw9QgTBRd52n9CL5JZvKyCRDRSx33aGoJaDyqo3d3mJoT9wzJ2+/FVK7q RhlrJHNpYzN31j/Op0wE85coyvrEZCqMmcGLTpuFB6LOLsJ41a/jkvbR431ayT9G phqBmpQ3BrxVDGwA1aRUf8VzimW0EV15YNkV63lOGvG6bpikKiNSwlwWhVF7q4zU UiwlJyNITCzOkavMY0FRJ3VubjpoOYU4XmwLiyavBM4o71cztONd/USb7w7p6Xy2 cix8kpjHo7aYlJKl1Si92kIbndskXNKWrYvBwlOGaeIby9/EA7Jsnh7Ps6HOk+1C POVExwl3ZQrKjRh3N4mxTnB53NU09ATQ4VukP0pBnDNOMLFF87g07R3w2S5EdejV usIVNvlS =mT8t -----END PGP SIGNATURE----- Merge tag 'kvmarm-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm updates for Linux 5.6 - Fix MMIO sign extension - Fix HYP VA tagging on tag space exhaustion - Fix PSTATE/CPSR handling when generating exception - Fix MMU notifier's advertizing of young pages - Fix poisoned page handling - Fix PMU SW event handling - Fix TVAL register access - Fix AArch32 external abort injection - Fix ITS unmapped collection handling - Various cleanups |
||
|
Linus Torvalds
|
11f2534bae |
arm64 KVM fix: set the correct MDCR_EL2 register value on the first run
of a vCPU. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE5RElWfyWxS+3PLO2a9axLQDIXvEFAl4xTDUACgkQa9axLQDI XvFVwxAAgaUudyEZrxpKJeueM4g0NcJ73Ahu+BrIft81ScKLsyaBE33Afnb6C8BG wkvUMYJCold7v741UE82oQ9y2R6P4lrr3MnvUhCwa6iR+HmakWJ1hes5M20rLAh6 u/GSXJxwhJaOLWAVjDNrCRP4HNyYVsXTxo+mCeYuz30+k/tfMzrKhbOBEfYp2zVS mpxoA2MccANl/sOvATXSkOh7z4bBct7FHj72PiAb0WFM2nuBP9h+8Jd6C3WwgW7B VWuoF/qKFGl1IK3IQ+RQCcvlAEVpX4dz8RqxWX+mseoQpVEI0RjAykdypJOCJ/W6 2E0BTwV5bNJzEU23fuM08YsGn0scQjjiEByyAbi+zEb4lZdlFjaHQHxlj4BNtzzK eCHK0LSy+DNWzVgEr2Bm4eGAM753zJ8LH04oOqhn01yKJ15CDGD4vNgUy03PXyTX iHpbMnUSUbgGVsaqpFb9jSq6dIToy8zGv5xwHOSa77UM1bSyn01n1aMAdC3MjWWI SKW0bh34hmdhbaeZV3V2tchiYHiv8CyLsBdxy4IpcZeOSpzw5mRo3HdkVrPbFwYB YSWUyQHXj5Xo6yAvs+MOMl1zS1aG0zgk5b5cCeewSHVHeiaxJBvcqSEXO29a/mwz x2ObZy6NMXKcOVuuOiTGCUW8CWPLkg/4ANFi68F0lUG4vVZyEes= =eAJt -----END PGP SIGNATURE----- Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 KVM fix from Catalin Marinas: "Set the correct MDCR_EL2 register value on the first run of a vCPU" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: KVM: arm64: Write arch.mdcr_el2 changes since last vcpu_load on VHE |
||
|
Linus Torvalds
|
83fa805bcb |
threads-v5.6
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Merge tag 'threads-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull thread management updates from Christian Brauner:
"Sargun Dhillon over the last cycle has worked on the pidfd_getfd()
syscall.
This syscall allows for the retrieval of file descriptors of a process
based on its pidfd. A task needs to have ptrace_may_access()
permissions with PTRACE_MODE_ATTACH_REALCREDS (suggested by Oleg and
Andy) on the target.
One of the main use-cases is in combination with seccomp's user
notification feature. As a reminder, seccomp's user notification
feature was made available in v5.0. It allows a task to retrieve a
file descriptor for its seccomp filter. The file descriptor is usually
handed of to a more privileged supervising process. The supervisor can
then listen for syscall events caught by the seccomp filter of the
supervisee and perform actions in lieu of the supervisee, usually
emulating syscalls. pidfd_getfd() is needed to expand its uses.
There are currently two major users that wait on pidfd_getfd() and one
future user:
- Netflix, Sargun said, is working on a service mesh where users
should be able to connect to a dns-based VIP. When a user connects
to e.g. 1.2.3.4:80 that runs e.g. service "foo" they will be
redirected to an envoy process. This service mesh uses seccomp user
notifications and pidfd to intercept all connect calls and instead
of connecting them to 1.2.3.4:80 connects them to e.g.
127.0.0.1:8080.
- LXD uses the seccomp notifier heavily to intercept and emulate
mknod() and mount() syscalls for unprivileged containers/processes.
With pidfd_getfd() more uses-cases e.g. bridging socket connections
will be possible.
- The patchset has also seen some interest from the browser corner.
Right now, Firefox is using a SECCOMP_RET_TRAP sandbox managed by a
broker process. In the future glibc will start blocking all signals
during dlopen() rendering this type of sandbox impossible. Hence,
in the future Firefox will switch to a seccomp-user-nofication
based sandbox which also makes use of file descriptor retrieval.
The thread for this can be found at
https://sourceware.org/ml/libc-alpha/2019-12/msg00079.html
With pidfd_getfd() it is e.g. possible to bridge socket connections
for the supervisee (binding to a privileged port) and taking actions
on file descriptors on behalf of the supervisee in general.
Sargun's first version was using an ioctl on pidfds but various people
pushed for it to be a proper syscall which he duely implemented as
well over various review cycles. Selftests are of course included.
I've also added instructions how to deal with merge conflicts below.
There's also a small fix coming from the kernel mentee project to
correctly annotate struct sighand_struct with __rcu to fix various
sparse warnings. We've received a few more such fixes and even though
they are mostly trivial I've decided to postpone them until after -rc1
since they came in rather late and I don't want to risk introducing
build warnings.
Finally, there's a new prctl() command PR_{G,S}ET_IO_FLUSHER which is
needed to avoid allocation recursions triggerable by storage drivers
that have userspace parts that run in the IO path (e.g. dm-multipath,
iscsi, etc). These allocation recursions deadlock the device.
The new prctl() allows such privileged userspace components to avoid
allocation recursions by setting the PF_MEMALLOC_NOIO and
PF_LESS_THROTTLE flags. The patch carries the necessary acks from the
relevant maintainers and is routed here as part of prctl()
thread-management."
* tag 'threads-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
prctl: PR_{G,S}ET_IO_FLUSHER to support controlling memory reclaim
sched.h: Annotate sighand_struct with __rcu
test: Add test for pidfd getfd
arch: wire up pidfd_getfd syscall
pid: Implement pidfd_getfd syscall
vfs, fdtable: Add fget_task helper
|
||
|
Linus Torvalds
|
33c84e89ab |
SCSI misc on 20200129
This series is slightly unusual because it includes Arnd's compat ioctl tree here: |
||
|
Linus Torvalds
|
6aee4badd8 |
Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull openat2 support from Al Viro:
"This is the openat2() series from Aleksa Sarai.
I'm afraid that the rest of namei stuff will have to wait - it got
zero review the last time I'd posted #work.namei, and there had been a
leak in the posted series I'd caught only last weekend. I was going to
repost it on Monday, but the window opened and the odds of getting any
review during that... Oh, well.
Anyway, openat2 part should be ready; that _did_ get sane amount of
review and public testing, so here it comes"
From Aleksa's description of the series:
"For a very long time, extending openat(2) with new features has been
incredibly frustrating. This stems from the fact that openat(2) is
possibly the most famous counter-example to the mantra "don't silently
accept garbage from userspace" -- it doesn't check whether unknown
flags are present[1].
This means that (generally) the addition of new flags to openat(2) has
been fraught with backwards-compatibility issues (O_TMPFILE has to be
defined as __O_TMPFILE|O_DIRECTORY|[O_RDWR or O_WRONLY] to ensure old
kernels gave errors, since it's insecure to silently ignore the
flag[2]). All new security-related flags therefore have a tough road
to being added to openat(2).
Furthermore, the need for some sort of control over VFS's path
resolution (to avoid malicious paths resulting in inadvertent
breakouts) has been a very long-standing desire of many userspace
applications.
This patchset is a revival of Al Viro's old AT_NO_JUMPS[3] patchset
(which was a variant of David Drysdale's O_BENEATH patchset[4] which
was a spin-off of the Capsicum project[5]) with a few additions and
changes made based on the previous discussion within [6] as well as
others I felt were useful.
In line with the conclusions of the original discussion of
AT_NO_JUMPS, the flag has been split up into separate flags. However,
instead of being an openat(2) flag it is provided through a new
syscall openat2(2) which provides several other improvements to the
openat(2) interface (see the patch description for more details). The
following new LOOKUP_* flags are added:
LOOKUP_NO_XDEV:
Blocks all mountpoint crossings (upwards, downwards, or through
absolute links). Absolute pathnames alone in openat(2) do not
trigger this. Magic-link traversal which implies a vfsmount jump is
also blocked (though magic-link jumps on the same vfsmount are
permitted).
LOOKUP_NO_MAGICLINKS:
Blocks resolution through /proc/$pid/fd-style links. This is done
by blocking the usage of nd_jump_link() during resolution in a
filesystem. The term "magic-links" is used to match with the only
reference to these links in Documentation/, but I'm happy to change
the name.
It should be noted that this is different to the scope of
~LOOKUP_FOLLOW in that it applies to all path components. However,
you can do openat2(NO_FOLLOW|NO_MAGICLINKS) on a magic-link and it
will *not* fail (assuming that no parent component was a
magic-link), and you will have an fd for the magic-link.
In order to correctly detect magic-links, the introduction of a new
LOOKUP_MAGICLINK_JUMPED state flag was required.
LOOKUP_BENEATH:
Disallows escapes to outside the starting dirfd's
tree, using techniques such as ".." or absolute links. Absolute
paths in openat(2) are also disallowed.
Conceptually this flag is to ensure you "stay below" a certain
point in the filesystem tree -- but this requires some additional
to protect against various races that would allow escape using
"..".
Currently LOOKUP_BENEATH implies LOOKUP_NO_MAGICLINKS, because it
can trivially beam you around the filesystem (breaking the
protection). In future, there might be similar safety checks done
as in LOOKUP_IN_ROOT, but that requires more discussion.
In addition, two new flags are added that expand on the above ideas:
LOOKUP_NO_SYMLINKS:
Does what it says on the tin. No symlink resolution is allowed at
all, including magic-links. Just as with LOOKUP_NO_MAGICLINKS this
can still be used with NOFOLLOW to open an fd for the symlink as
long as no parent path had a symlink component.
LOOKUP_IN_ROOT:
This is an extension of LOOKUP_BENEATH that, rather than blocking
attempts to move past the root, forces all such movements to be
scoped to the starting point. This provides chroot(2)-like
protection but without the cost of a chroot(2) for each filesystem
operation, as well as being safe against race attacks that
chroot(2) is not.
If a race is detected (as with LOOKUP_BENEATH) then an error is
generated, and similar to LOOKUP_BENEATH it is not permitted to
cross magic-links with LOOKUP_IN_ROOT.
The primary need for this is from container runtimes, which
currently need to do symlink scoping in userspace[7] when opening
paths in a potentially malicious container.
There is a long list of CVEs that could have bene mitigated by
having RESOLVE_THIS_ROOT (such as CVE-2017-1002101,
CVE-2017-1002102, CVE-2018-15664, and CVE-2019-5736, just to name a
few).
In order to make all of the above more usable, I'm working on
libpathrs[8] which is a C-friendly library for safe path resolution.
It features a userspace-emulated backend if the kernel doesn't support
openat2(2). Hopefully we can get userspace to switch to using it, and
thus get openat2(2) support for free once it's ready.
Future work would include implementing things like
RESOLVE_NO_AUTOMOUNT and possibly a RESOLVE_NO_REMOTE (to allow
programs to be sure they don't hit DoSes though stale NFS handles)"
* 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
Documentation: path-lookup: include new LOOKUP flags
selftests: add openat2(2) selftests
open: introduce openat2(2) syscall
namei: LOOKUP_{IN_ROOT,BENEATH}: permit limited ".." resolution
namei: LOOKUP_IN_ROOT: chroot-like scoped resolution
namei: LOOKUP_BENEATH: O_BENEATH-like scoped resolution
namei: LOOKUP_NO_XDEV: block mountpoint crossing
namei: LOOKUP_NO_MAGICLINKS: block magic-link resolution
namei: LOOKUP_NO_SYMLINKS: block symlink resolution
namei: allow set_root() to produce errors
namei: allow nd_jump_link() to produce errors
nsfs: clean-up ns_get_path() signature to return int
namei: only return -ECHILD from follow_dotdot_rcu()
|
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|
Linus Torvalds
|
ca9b5b6283 |
TTY/Serial driver updates for 5.6-rc1
Here are the big set of tty and serial driver updates for 5.6-rc1 Included in here are: - dummy_con cleanups (touches lots of arch code) - sysrq logic cleanups (touches lots of serial drivers) - samsung driver fixes (wasn't really being built) - conmakeshash move to tty subdir out of scripts - lots of small tty/serial driver updates All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXjFRBg8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yn2VACgkge7vTeUNeZFc+6F4NWphAQ5tCQAoK/MMbU6 0O8ef7PjFwCU4s227UTv =6m40 -----END PGP SIGNATURE----- Merge tag 'tty-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here are the big set of tty and serial driver updates for 5.6-rc1 Included in here are: - dummy_con cleanups (touches lots of arch code) - sysrq logic cleanups (touches lots of serial drivers) - samsung driver fixes (wasn't really being built) - conmakeshash move to tty subdir out of scripts - lots of small tty/serial driver updates All of these have been in linux-next for a while with no reported issues" * tag 'tty-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (140 commits) tty: n_hdlc: Use flexible-array member and struct_size() helper tty: baudrate: SPARC supports few more baud rates tty: baudrate: Synchronise baud_table[] and baud_bits[] tty: serial: meson_uart: Add support for kernel debugger serial: imx: fix a race condition in receive path serial: 8250_bcm2835aux: Document struct bcm2835aux_data serial: 8250_bcm2835aux: Use generic remapping code serial: 8250_bcm2835aux: Allocate uart_8250_port on stack serial: 8250_bcm2835aux: Suppress register_port error on -EPROBE_DEFER serial: 8250_bcm2835aux: Suppress clk_get error on -EPROBE_DEFER serial: 8250_bcm2835aux: Fix line mismatch on driver unbind serial_core: Remove unused member in uart_port vt: Correct comment documenting do_take_over_console() vt: Delete comment referencing non-existent unbind_con_driver() arch/xtensa/setup: Drop dummy_con initialization arch/x86/setup: Drop dummy_con initialization arch/unicore32/setup: Drop dummy_con initialization arch/sparc/setup: Drop dummy_con initialization arch/sh/setup: Drop dummy_con initialization arch/s390/setup: Drop dummy_con initialization ... |
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|
Linus Torvalds
|
abb22e44cf |
- Depromote debug print on the db8500 platform (Linus Walleij)
- Fix compilation warning when compiling with make W=1 (Amit Kucheria) - Code cleanup and refactoring, regmap conversion and add hwmon support on Qoriq (Andrey Smirnov) - Add an idle injection cpu cooling device and its documentation, rename the cpu_cooling device to cpufreq_cooling device (Daniel Lezcano) - Convert unexported functions to static, add the __init annotation in the thermal-of code and remove the pointless wrapper functions (Daniel Lezcano) - Fix register offset for Armada XP and register reset bit initialization (Zak Hays) - Enable hwmon on the rockchip (Stefan Schaeckeler) - Add the thermal sensor for the H6/H5/H3/A64/A83T/R40 sun8i platform and their device tree bindings, followed by a fix for the ths number and the sparse warnings (Yangtao Li) - Code cleansup for the sun8i and hwmon support (Yangtao Li) - Silent some messages which are misleading given the changes made in the previous version on generic-adc (Martin Blumenstingl) - Rename exynos to Exynos (Krzysztof Kozlowski) - Add the bcm2711 thermal driver with the device tree bindings (Stefan Wahren) - Use usleep_range() instead of udelay() as the call is always done in a sleep-able context (Geert Uytterhoeven) - Do code cleanup and re-organization to set the scene for a new process for the brcmstb (Florian Fainelli) - Fix bindings check issues on brcm (Stefan Wahren) - Add Jasper Lake support on int340x (Nivedita Swaminathan) - Add Comet Lake support on intel pch (Gayatri Kammela) - Fix unmatched pci_release_region() on x86 (Chuhong Yuan) - Remove temperature boundaries for rcar and rcar3 (Niklas Söderlund) - Fix return value to -ENODEV when thermal_zone_of_sensor_register() is called with the of-node is missing (Peter Mamonov) - Code cleanup, interrupt bouncing, and better support on stm32 (Pascal Paillet) -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRuKdf4M92Gi9vqihve5qtOL396pgUCXjAFCAAKCRDe5qtOL396 prIfAQCjhNWKqP3U4oewia9p8dwwfsOpJMqUXge/k6sKzAqscAD/Rg4lWXaayOsX OWKhS/iL5eN7aXVnSH4MxONsTWhLTAs= =eZkX -----END PGP SIGNATURE----- Merge tag 'thermal-v5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux Pull thermal updates from Daniel Lezcano: - Depromote debug print on the db8500 platform (Linus Walleij) - Fix compilation warning when compiling with make W=1 (Amit Kucheria) - Code cleanup and refactoring, regmap conversion and add hwmon support on Qoriq (Andrey Smirnov) - Add an idle injection cpu cooling device and its documentation, rename the cpu_cooling device to cpufreq_cooling device (Daniel Lezcano) - Convert unexported functions to static, add the __init annotation in the thermal-of code and remove the pointless wrapper functions (Daniel Lezcano) - Fix register offset for Armada XP and register reset bit initialization (Zak Hays) - Enable hwmon on the rockchip (Stefan Schaeckeler) - Add the thermal sensor for the H6/H5/H3/A64/A83T/R40 sun8i platform and their device tree bindings, followed by a fix for the ths number and the sparse warnings (Yangtao Li) - Code cleansup for the sun8i and hwmon support (Yangtao Li) - Silent some messages which are misleading given the changes made in the previous version on generic-adc (Martin Blumenstingl) - Rename exynos to Exynos (Krzysztof Kozlowski) - Add the bcm2711 thermal driver with the device tree bindings (Stefan Wahren) - Use usleep_range() instead of udelay() as the call is always done in a sleep-able context (Geert Uytterhoeven) - Do code cleanup and re-organization to set the scene for a new process for the brcmstb (Florian Fainelli) - Fix bindings check issues on brcm (Stefan Wahren) - Add Jasper Lake support on int340x (Nivedita Swaminathan) - Add Comet Lake support on intel pch (Gayatri Kammela) - Fix unmatched pci_release_region() on x86 (Chuhong Yuan) - Remove temperature boundaries for rcar and rcar3 (Niklas Söderlund) - Fix return value to -ENODEV when thermal_zone_of_sensor_register() is called with the of-node is missing (Peter Mamonov) - Code cleanup, interrupt bouncing, and better support on stm32 (Pascal Paillet) * tag 'thermal-v5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (66 commits) thermal: stm32: Fix low threshold interrupt flood thermal: stm32: Improve temperature computing thermal: stm32: Handle multiple trip points thermal: stm32: Disable interrupts at probe thermal: stm32: Rework sensor mode management thermal: stm32: Fix icifr register name thermal: of: Make thermal_zone_of_sensor_register return -ENODEV if a sensor OF node is missing thermal: rcar_gen3_thermal: Remove temperature bound thermal: rcar_thermal: Remove temperature bound thermal: intel: intel_pch_thermal: Add Comet Lake (CML) platform support thermal: intel: Fix unmatched pci_release_region thermal: int340x: processor_thermal: Add Jasper Lake support dt-bindings: brcm,avs-ro-thermal: Fix binding check issues thermal: brcmstb_thermal: Register different ops per process thermal: brcmstb_thermal: Restructure interrupt registration thermal: brcmstb_thermal: Add 16nm process thermal parameters dt-bindings: thermal: Define BCM7216 thermal sensor compatible thermal: brcmstb_thermal: Prepare to support a different process thermal: brcmstb_thermal: Do not use DT coefficients thermal: rcar_thermal: Use usleep_range() instead of udelay() ... |
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|
Linus Torvalds
|
bd2463ac7d |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:
1) Add WireGuard
2) Add HE and TWT support to ath11k driver, from John Crispin.
3) Add ESP in TCP encapsulation support, from Sabrina Dubroca.
4) Add variable window congestion control to TIPC, from Jon Maloy.
5) Add BCM84881 PHY driver, from Russell King.
6) Start adding netlink support for ethtool operations, from Michal
Kubecek.
7) Add XDP drop and TX action support to ena driver, from Sameeh
Jubran.
8) Add new ipv4 route notifications so that mlxsw driver does not have
to handle identical routes itself. From Ido Schimmel.
9) Add BPF dynamic program extensions, from Alexei Starovoitov.
10) Support RX and TX timestamping in igc, from Vinicius Costa Gomes.
11) Add support for macsec HW offloading, from Antoine Tenart.
12) Add initial support for MPTCP protocol, from Christoph Paasch,
Matthieu Baerts, Florian Westphal, Peter Krystad, and many others.
13) Add Octeontx2 PF support, from Sunil Goutham, Geetha sowjanya, Linu
Cherian, and others.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1469 commits)
net: phy: add default ARCH_BCM_IPROC for MDIO_BCM_IPROC
udp: segment looped gso packets correctly
netem: change mailing list
qed: FW 8.42.2.0 debug features
qed: rt init valid initialization changed
qed: Debug feature: ilt and mdump
qed: FW 8.42.2.0 Add fw overlay feature
qed: FW 8.42.2.0 HSI changes
qed: FW 8.42.2.0 iscsi/fcoe changes
qed: Add abstraction for different hsi values per chip
qed: FW 8.42.2.0 Additional ll2 type
qed: Use dmae to write to widebus registers in fw_funcs
qed: FW 8.42.2.0 Parser offsets modified
qed: FW 8.42.2.0 Queue Manager changes
qed: FW 8.42.2.0 Expose new registers and change windows
qed: FW 8.42.2.0 Internal ram offsets modifications
MAINTAINERS: Add entry for Marvell OcteonTX2 Physical Function driver
Documentation: net: octeontx2: Add RVU HW and drivers overview
octeontx2-pf: ethtool RSS config support
octeontx2-pf: Add basic ethtool support
...
|
||
|
Linus Torvalds
|
a78208e243 |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Removed CRYPTO_TFM_RES flags
- Extended spawn grabbing to all algorithm types
- Moved hash descsize verification into API code
Algorithms:
- Fixed recursive pcrypt dead-lock
- Added new 32 and 64-bit generic versions of poly1305
- Added cryptogams implementation of x86/poly1305
Drivers:
- Added support for i.MX8M Mini in caam
- Added support for i.MX8M Nano in caam
- Added support for i.MX8M Plus in caam
- Added support for A33 variant of SS in sun4i-ss
- Added TEE support for Raven Ridge in ccp
- Added in-kernel API to submit TEE commands in ccp
- Added AMD-TEE driver
- Added support for BCM2711 in iproc-rng200
- Added support for AES256-GCM based ciphers for chtls
- Added aead support on SEC2 in hisilicon"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (244 commits)
crypto: arm/chacha - fix build failured when kernel mode NEON is disabled
crypto: caam - add support for i.MX8M Plus
crypto: x86/poly1305 - emit does base conversion itself
crypto: hisilicon - fix spelling mistake "disgest" -> "digest"
crypto: chacha20poly1305 - add back missing test vectors and test chunking
crypto: x86/poly1305 - fix .gitignore typo
tee: fix memory allocation failure checks on drv_data and amdtee
crypto: ccree - erase unneeded inline funcs
crypto: ccree - make cc_pm_put_suspend() void
crypto: ccree - split overloaded usage of irq field
crypto: ccree - fix PM race condition
crypto: ccree - fix FDE descriptor sequence
crypto: ccree - cc_do_send_request() is void func
crypto: ccree - fix pm wrongful error reporting
crypto: ccree - turn errors to debug msgs
crypto: ccree - fix AEAD decrypt auth fail
crypto: ccree - fix typo in comment
crypto: ccree - fix typos in error msgs
crypto: atmel-{aes,sha,tdes} - Retire crypto_platform_data
crypto: x86/sha - Eliminate casts on asm implementations
...
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