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2024-05-02sh: j2: Drop incorrect SPI controller spi-max-frequency propertyKrzysztof Kozlowski
The J2 SPI controller bindings never allowed spi-max-frequency property in the controller node. Neither old spi-bus.txt bindings, nor new DT schema allows it. Linux driver does not parse that property from controller node, thus drop it from DTS as incorrect hardware description. The SPI child device has already the same property with the same value, so functionality should not be affected. Cc: Kousik Sanagavarapu <five231003@gmail.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Tested-by: Rob Landley <rob@landley.net> Link: https://lore.kernel.org/r/20240322064221.25776-1-krzysztof.kozlowski@linaro.org Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: push-switch: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/20240306211947.97103-2-u.kleine-koenig@pengutronix.de Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: sh7785lcr: Make init_sh7785lcr_IRQ() staticGeert Uytterhoeven
arch/sh/boards/board-sh7785lcr.c:298:13: warning: no previous prototype for ‘init_sh7785lcr_IRQ’ [-Wmissing-prototypes] There are no users outside this file, so make it static. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/cbe9da98a1106cdab686766e2f23f768399dbdbf.1709579038.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: sh7757: Add missing #include <asm/mmzone.h>Geert Uytterhoeven
arch/sh/kernel/cpu/sh4a/setup-sh7757.c:1240:13: warning: no previous prototype for ‘plat_mem_setup’ [-Wmissing-prototypes] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/c9c26472151d16a2ca91f14bccd64af07a6abdd8.1709579038.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: sh7757lcr: Make init_sh7757lcr_IRQ() staticGeert Uytterhoeven
arch/sh/boards/board-sh7757lcr.c:572:13: warning: no previous prototype for 'init_sh7757lcr_IRQ' [-Wmissing-prototypes] There are no users outside this file, so make it static. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/fba00424b5b0bee0f9b9cbc63d649a86854d202f.1709579038.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: mach-sh03: Make sh03_rtc_settimeofday() staticGeert Uytterhoeven
arch/sh/boards/mach-sh03/rtc.c:123:5: warning: no previous prototype for ‘sh03_rtc_settimeofday’ [-Wmissing-prototypes] There are no users outside this file, so make it static. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/95417f2a3eb1561af7c2ee064efbc3ef3f03dac3.1709579038.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: mach-highlander: Add missing #include <mach/highlander.h>Geert Uytterhoeven
arch/sh/boards/mach-highlander/pinmux-r7785rp.c:9:13: warning: no previous prototype for ‘highlander_plat_pinmux_setup’ [-Wmissing-prototypes] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/bbbc833d2c5b565122baaf9277ddf4a2f2cadead.1709579038.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: traps: Make is_dsp_inst() staticGeert Uytterhoeven
If CONFIG_SH_DSP=y (e.g. se7343_defconfig): arch/sh/kernel/traps_32.c:572:5: warning: no previous prototype for ‘is_dsp_inst’ [-Wmissing-prototypes] There are no users outside this file, so make it static. While at it, convert the dummy for the CONFIG_SH_DSP=n case from a macro to a static inline function, to increase type-safety. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/8525fe446e7f24649a83b8cd6ca8b736ab746b80.1709579038.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: cache: Move forward declarations to <asm/cacheflush.h>Geert Uytterhoeven
arch/sh/kernel/cpu/init.c:99:29: warning: no previous prototype for 'l2_cache_init' [-Wmissing-prototypes] arch/sh/kernel/cpu/sh4a/setup-sh7723.c:422:6: warning: no previous prototype for 'l2_cache_init' [-Wmissing-prototypes] arch/sh/kernel/cpu/sh4a/setup-sh7724.c:842:6: warning: no previous prototype for 'l2_cache_init' [-Wmissing-prototypes] arch/sh/mm/cache-j2.c:48:13: warning: no previous prototype for 'j2_cache_init' [-Wmissing-prototypes] arch/sh/mm/cache-sh2.c:85:13: warning: no previous prototype for 'sh2_cache_init' [-Wmissing-prototypes] arch/sh/mm/cache-sh2a.c:181:13: warning: no previous prototype for 'sh2a_cache_init' [-Wmissing-prototypes] arch/sh/mm/cache-sh3.c:90:13: warning: no previous prototype for 'sh3_cache_init' [-Wmissing-prototypes] arch/sh/mm/cache-sh4.c:384:13: warning: no previous prototype for 'sh4_cache_init' [-Wmissing-prototypes] arch/sh/mm/cache-shx3.c:18:13: warning: no previous prototype for 'shx3_cache_init' [-Wmissing-prototypes] arch/sh/mm/flush-sh4.c:106:13: warning: no previous prototype for 'sh4__flush_region_init' [-Wmissing-prototypes] arch/sh/mm/cache-sh7705.c:190:13: warning: no previous prototype for 'sh7705_cache_init' [-Wmissing-prototypes] Fix this by moving all cache-related forward declarations to <asm/cacheflush.h>, and by including the latter where needed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/f47ab87636d16db4c47bebe1bf62650045f61989.1709579038.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: dma: Remove unused functionalityGeert Uytterhoeven
dma_extend(), get_dma_info_by_name(), register_chan_caps(), and request_dma_bycap() are unused. Remove them, and all related code. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/2beb81fdd7592a94329e3c9a6ba56959f6094019.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: dwarf: Make dwarf_lookup_fde() staticGeert Uytterhoeven
arch/sh/kernel/dwarf.c:347:19: warning: no previous prototype for 'dwarf_lookup_fde' [-Wmissing-prototypes] There are no users outside this file, so make it static. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/55e8261a354e8ec4d375754e404c6c1d303af715.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: kprobes: Remove unneeded kprobe_opcode_t castsGeert Uytterhoeven
There is no need to cast a kprobe_opcode_t pointer to a kprobe_opcode_t pointer. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/fc22b990d869fc2005990159d8072ae2774b1396.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: kprobes: Make trampoline_probe_handler() staticGeert Uytterhoeven
arch/sh/kernel/kprobes.c:299:15: warning: no previous prototype for 'trampoline_probe_handler' [-Wmissing-prototypes] There are no users outside this file, so make it static. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/42f30b7f767ee1293f6e687a605f7d907ae2daa6.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: kprobes: Merge arch_copy_kprobe() into arch_prepare_kprobe()Geert Uytterhoeven
arch/sh/kernel/kprobes.c:52:16: warning: no previous prototype for 'arch_copy_kprobe' [-Wmissing-prototypes] Although SH kprobes support was only merged in v2.6.28, it missed the earlier removal of the arch_copy_kprobe() callback in v2.6.15. Based on the powerpc part of commit 49a2a1b83ba6fa40 ("[PATCH] kprobes: changed from using spinlock to mutex"). Fixes: d39f5450146ff39f ("sh: Add kprobes support.") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/717d47a19689cc944fae6e981a1ad7cae1642c89.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: smp: Fix missing prototypesGeert Uytterhoeven
arch/sh/kernel/smp.c:173:17: warning: no previous prototype for 'start_secondary' [-Wmissing-prototypes] arch/sh/kernel/smp.c:324:5: warning: no previous prototype for 'setup_profiling_timer' [-Wmissing-prototypes] Make start_secondary() static, as it is only used in this file. Include <linux/profile.h> to fix the other warning. There are no users outside this file, so make it static. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/6b6b9a84b30ee56f57f409a7550c69d4aece5dc3.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: sh7786: Remove unused sh7786_usb_use_exclock()Geert Uytterhoeven
arch/sh/kernel/cpu/sh4a/setup-sh7786.c:411:13: warning: no previous prototype for 'sh7786_usb_use_exclock' [-Wmissing-prototypes] Upstream never had a user of sh7786_usb_use_exclock(), remove it. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/a87c6c0edcf81937b8eb2c899d286d82d71ad513.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: sh2a: Add missing #include <asm/processor.h>Geert Uytterhoeven
arch/sh/kernel/cpu/sh2a/opcode_helper.c:34:14: warning: no previous prototype for 'instruction_size' [-Wmissing-prototypes] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/8314dd9a966394dd1fd82d88095c57d9778fcfc9.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: dma: Remove unused dmac_search_free_channel()Geert Uytterhoeven
arch/sh/drivers/dma/dma-api.c:164:5: warning: no previous prototype for 'dmac_search_free_channel' [-Wmissing-prototypes] dmac_search_free_channel() never had a user in upstream, remove it. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/82d5efdde44f9489c5a7d11d0a19750445116c95.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: math-emu: Add missing #include <asm/fpu.h>Geert Uytterhoeven
arch/sh/math-emu/math.c:492:5: warning: no previous prototype for 'do_fpu_inst' [-Wmissing-prototypes] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/cfda1ba2eadb75e2793e67d43df42fe4c04e4fcf.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: nommu: Add missing #include <asm/cacheflush.h>Geert Uytterhoeven
arch/sh/mm/nommu.c:76:13: warning: no previous prototype for 'kmap_coherent_init' [-Wmissing-prototypes] arch/sh/mm/nommu.c:80:7: warning: no previous prototype for 'kmap_coherent' [-Wmissing-prototypes] arch/sh/mm/nommu.c:86:6: warning: no previous prototype for 'kunmap_coherent' [-Wmissing-prototypes] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/d4b2a43fcedddee3d27cfd87ff2e0bf511588aa0.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: ftrace: Fix missing prototypesGeert Uytterhoeven
arch/sh/kernel/ftrace.c:130:6: warning: no previous prototype for ‘arch_ftrace_nmi_enter’ [-Wmissing-prototypes] arch/sh/kernel/ftrace.c:140:6: warning: no previous prototype for ‘arch_ftrace_nmi_exit’ [-Wmissing-prototypes] arch/sh/kernel/ftrace.c:316:6: warning: no previous prototype for ‘prepare_ftrace_return’ [-Wmissing-prototypes] Fix this by moving existing forward declarations to <asm/ftrace.h>, and adding the missing forward declaration for prepare_ftrace_return(). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/910c8846a025e1c3b744a83ddf8e2816a3c5569d.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: hw_breakpoint: Add missing forward declaration for arch_bp_generic_fields()Geert Uytterhoeven
arch/sh/kernel/hw_breakpoint.c:135:5: warning: no previous prototype for ‘arch_bp_generic_fields’ [-Wmissing-prototypes] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/566af354bf51ddc38e9eb95eac51ec00c4e42024.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: traps: Add missing #include <asm/setup.h>Geert Uytterhoeven
arch/sh/kernel/traps_32.c:735:6: warning: no previous prototype for ‘per_cpu_trap_init’ [-Wmissing-prototypes] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/a7750e57cc077ca6e27d0b9bd6b123d42894bc17.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: return_address: Add missing #include <asm/ftrace.h>Geert Uytterhoeven
arch/sh/kernel/return_address.c:49:7: warning: no previous prototype for ‘return_address’ [-Wmissing-prototypes] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/45685f62c9132aca5dc3c028471218393b51f34c.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: tlb: Add missing forward declaration for handle_tlbmiss()Geert Uytterhoeven
arch/sh/mm/tlbex_32.c:22:1: warning: no previous prototype for ‘handle_tlbmiss’ [-Wmissing-prototypes] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/23ec2c88168bd5b7e294828221531eed2f3eede8.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: syscall: Add missing forward declaration for sys_cacheflush()Geert Uytterhoeven
arch/sh/kernel/sys_sh.c:58:16: warning: no previous prototype for ‘sys_cacheflush’ [-Wmissing-prototypes] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/b1c218986fb77d78303626b43c97925809045018.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: fpu: Add missing forward declarationsGeert Uytterhoeven
arch/sh/kernel/cpu/sh4/fpu.c:389:6: warning: no previous prototype for ‘float_raise’ [-Wmissing-prototypes] arch/sh/kernel/cpu/sh4/fpu.c:394:5: warning: no previous prototype for ‘float_rounding_mode’ [-Wmissing-prototypes] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/1847145fc2181313b78bea8a81e6f0269d765968.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02sh: pgtable: Fix missing prototypesGeert Uytterhoeven
arch/sh/mm/pgtable.c:12:6: warning: no previous prototype for 'pgd_ctor' [-Wmissing-prototypes] arch/sh/mm/pgtable.c:34:8: warning: no previous prototype for 'pgd_alloc' [-Wmissing-prototypes] arch/sh/mm/pgtable.c:39:6: warning: no previous prototype for 'pgd_free' [-Wmissing-prototypes] arch/sh/mm/pgtable.c:45:6: warning: no previous prototype for 'pud_populate' [-Wmissing-prototypes] arch/sh/mm/pgtable.c:50:8: warning: no previous prototype for 'pmd_alloc_one' [-Wmissing-prototypes] arch/sh/mm/pgtable.c:55:6: warning: no previous prototype for 'pmd_free' [-Wmissing-prototypes] Make pgd_ctor() static, as it is only used in this file. Include <asm/pgalloc.h> to fix the other warnings. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/aa1328ea3327d6685aab76d5787cb77c996052c0.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2024-05-02ARM: dts: aspeed: Add ASRock E3C256D4I BMCZev Weiss
Like the E3C246D4I, this is a reasonably affordable off-the-shelf mini-ITX AST2500/Xeon motherboard with good potential as an OpenBMC development platform. Booting the host requires a modicum of eSPI support that's not yet in the mainline kernel, but most other basic BMC functionality is available with this device-tree. Signed-off-by: Zev Weiss <zev@bewilderbeest.net> Link: https://lore.kernel.org/r/20240502002836.17862-8-zev@bewilderbeest.net Signed-off-by: Joel Stanley <joel@jms.id.au>
2024-05-02KVM: s390: Check kvm pointer when testing KVM_CAP_S390_HPAGE_1MJean-Philippe Brucker
KVM allows issuing the KVM_CHECK_EXTENSION ioctl either on the /dev/kvm fd or the VM fd. In the first case, kvm_vm_ioctl_check_extension() is called with kvm==NULL. Ensure we don't dereference the pointer in that case. Fixes: 40ebdb8e59df ("KVM: s390: Make huge pages unavailable in ucontrol VMs") Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com> Message-ID: <20240419160723.320910-2-jean-philippe@linaro.org> Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2024-05-01hardening: Enable KCFI and some other optionsKees Cook
Add some stuff that got missed along the way: - CONFIG_UNWIND_PATCH_PAC_INTO_SCS=y so SCS vs PAC is hardware selectable. - CONFIG_X86_KERNEL_IBT=y while a default, just be sure. - CONFIG_CFI_CLANG=y globally. - CONFIG_PAGE_TABLE_CHECK=y for userspace mapping sanity. Reviewed-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20240501193709.make.982-kees@kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
2024-05-01arm64: dts: qcom: qcs404: fix bluetooth device addressJohan Hovold
The 'local-bd-address' property is used to pass a unique Bluetooth device address from the boot firmware to the kernel and should otherwise be left unset so that the OS can prevent the controller from being used until a valid address has been provided through some other means (e.g. using btmgmt). Fixes: 60f77ae7d1c1 ("arm64: dts: qcom: qcs404-evb: Enable uart3 and add Bluetooth") Cc: stable@vger.kernel.org # 5.10 Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Link: https://lore.kernel.org/r/20240501075201.4732-1-johan+linaro@kernel.org Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2024-05-01arm64: dts: qcom: sc8280xp-x13s: enable USB MP and fingerprint readerJohan Hovold
Enable the multiport USB controller to which the fingerprint reader in the X13s power button is connected. Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20240501065641.965-1-johan+linaro@kernel.org Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2024-05-01arm64: dts: qcom: sc8280xp: Add USB DWC3 Multiport controllerKrishna Kurapati
Add USB and DWC3 node for tertiary port of SC8280 along with Multiport interrupts and PHYs. Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com> Reviewed-by: Johan Hovold <johan+linaro@kernel.org> Tested-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20240429162048.2133512-2-quic_kriskura@quicinc.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2024-05-01KVM: arm64: Force injection of a data abort on NISV MMIO exitMarc Zyngier
If a vcpu exits for a data abort with an invalid syndrome, the expectations are that userspace has a chance to save the day if it has requested to see such exits. However, this is completely futile in the case of a protected VM, as none of the state is available. In this particular case, inject a data abort directly into the vcpu, consistent with what userspace could do. This also helps with pKVM, which discards all syndrome information when forwarding data aborts that are not known to be MMIO. Finally, document this tweak to the API. Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-31-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Restrict supported capabilities for protected VMsFuad Tabba
For practical reasons as well as security related ones, not all capabilities are supported for protected VMs in pKVM. Add a function that restricts the capabilities for protected VMs. This behaves as an allow-list to ensure that future capabilities are checked for compatibility and security before being allowed for protected VMs. Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-30-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Refactor setting the return value in kvm_vm_ioctl_enable_cap()Fuad Tabba
Initialize r = -EINVAL to get rid of the error-path initializations in kvm_vm_ioctl_enable_cap(). No functional change intended. Suggested-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-29-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Clarify rationale for ZCR_EL1 value restored on guest exitFuad Tabba
Expand comment clarifying why the host value representing SVE vector length being restored for ZCR_EL1 on guest exit isn't the same as it was on guest entry. Signed-off-by: Fuad Tabba <tabba@google.com> Reviewed-by: Mark Brown <broonie@kernel.org> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-21-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Introduce and use predicates that check for protected VMsFuad Tabba
In order to determine whether or not a VM or vcpu are protected, introduce helpers to query this state. While at it, use the vcpu helper to check vcpus protected state instead of the kvm one. Co-authored-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-19-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Add is_pkvm_initialized() helperQuentin Perret
Add a helper allowing to check when the pkvm static key is enabled to ease the introduction of pkvm hooks in other parts of the code. Signed-off-by: Quentin Perret <qperret@google.com> Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-18-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Simplify vgic-v3 hypercallsMarc Zyngier
Consolidate the GICv3 VMCR accessor hypercalls into the APR save/restore hypercalls so that all of the EL2 GICv3 state is covered by a single pair of hypercalls. Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-17-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Move setting the page as dirty out of the critical sectionFuad Tabba
Move the unlock earlier in user_mem_abort() to shorten the critical section. This also helps for future refactoring and reuse of similar code. This moves out marking the page as dirty outside of the critical section. That code does not interact with the stage-2 page tables, which the read lock in the critical section protects. Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-16-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Change kvm_handle_mmio_return() return polarityFuad Tabba
Most exit handlers return <= 0 to indicate that the host needs to handle the exit. Make kvm_handle_mmio_return() consistent with the exit handlers in handle_exit(). This makes the code easier to reason about, and makes it easier to add other handlers in future patches. No functional change intended. Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-15-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Fix comment for __pkvm_vcpu_init_traps()Fuad Tabba
Fix the comment to clarify that __pkvm_vcpu_init_traps() initializes traps for all VMs in protected mode, and not only for protected VMs. Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-14-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Prevent kmemleak from accessing .hyp.dataQuentin Perret
We've added a .data section for the hypervisor, which kmemleak is eager to parse. This clearly doesn't go well, so add the section to kmemleak's block list. Signed-off-by: Quentin Perret <qperret@google.com> Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-13-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Do not map the host fpsimd state to hyp in pKVMFuad Tabba
pKVM maintains its own state at EL2 for tracking the host fpsimd state. Therefore, no need to map and share the host's view with it. Signed-off-by: Fuad Tabba <tabba@google.com> Reviewed-by: Mark Brown <broonie@kernel.org> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-12-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Rename __tlb_switch_to_{guest,host}() in VHEFuad Tabba
Rename __tlb_switch_to_{guest,host}() to {enter,exit}_vmid_context() in VHE code to maintain symmetry between the nVHE and VHE TLB invalidations. No functional change intended. Suggested-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-11-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Support TLB invalidation in guest contextWill Deacon
Typically, TLB invalidation of guest stage-2 mappings using nVHE is performed by a hypercall originating from the host. For the invalidation instruction to be effective, therefore, __tlb_switch_to_{guest,host}() swizzle the active stage-2 context around the TLBI instruction. With guest-to-host memory sharing and unsharing hypercalls originating from the guest under pKVM, there is need to support both guest and host VMID invalidations issued from guest context. Replace the __tlb_switch_to_{guest,host}() functions with a more general {enter,exit}_vmid_context() implementation which supports being invoked from guest context and acts as a no-op if the target context matches the running context. Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-10-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Avoid BBM when changing only s/w bits in Stage-2 PTEWill Deacon
Break-before-make (BBM) can be expensive, as transitioning via an invalid mapping (i.e. the "break" step) requires the completion of TLB invalidation and can also cause other agents to fault concurrently on the invalid mapping. Since BBM is not required when changing only the software bits of a PTE, avoid the sequence in this case and just update the PTE directly. Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-9-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2024-05-01KVM: arm64: Check for PTE validity when checking for executable/cacheableMarc Zyngier
Don't just assume that the PTE is valid when checking whether it describes an executable or cacheable mapping. This makes sure that we don't issue CMOs for invalid mappings. Suggested-by: Will Deacon <will@kernel.org> Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20240423150538.2103045-8-tabba@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
generated by cgit (git 2.34.1) at 2025-10-01 09:11:10 +0000