- 03 Apr, 2024 2 commits
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Frank Li authored
lpcg's arg0 should use clock indices instead of index. pwm0_lpcg: clock-controller@5d400000 { ... // Col1 Col2 clocks = <&clk IMX_SC_R_PWM_0 IMX_SC_PM_CLK_PER>, // 0 0 <&clk IMX_SC_R_PWM_0 IMX_SC_PM_CLK_PER>, // 1 1 <&clk IMX_SC_R_PWM_0 IMX_SC_PM_CLK_PER>, // 2 4 <&lsio_bus_clk>, // 3 5 <&clk IMX_SC_R_PWM_0 IMX_SC_PM_CLK_PER>; // 4 6 clock-indices = <IMX_LPCG_CLK_0>, <IMX_LPCG_CLK_1>, <IMX_LPCG_CLK_4>, <IMX_LPCG_CLK_5>, <IMX_LPCG_CLK_6>; }; Col1: index, which existing dts try to get. Col2: actual index in lpcg driver. pwm1 { .... clocks = <&pwm1_lpcg 4>, <&pwm1_lpcg 1>; ^^ ^^ should be: clocks = <&pwm1_lpcg IMX_LPCG_CLK_6>, <&pwm1_lpcg IMX_LPCG_CLK_1>; }; Arg0 is divided by 4 in lpcg driver, so index 0 and 1 will be get by pwm driver, which are same as IMX_LPCG_CLK_6 and IMX_LPCG_CLK_1. Even it can work, but code logic is wrong. Fixed it by use correct indices. Cc: stable@vger.kernel.org Fixes: 23fa99b2 ("arm64: dts: freescale: imx8-ss-lsio: add support for lsio_pwm0-3") Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Fabio Estevam authored
Since commit 63b0cd30 ("media: ov2680: Add bus-cfg / endpoint property verification") the ov2680 no longer probes on a imx7s-warp7: ov2680 1-0036: error -EINVAL: supported link freq 330000000 not found ov2680 1-0036: probe with driver ov2680 failed with error -22 Fix it by passing the required 'link-frequencies' property as recommended by: https://www.kernel.org/doc/html/v6.9-rc1/driver-api/media/camera-sensor.html#handling-clocks Cc: stable@vger.kernel.org Fixes: 63b0cd30 ("media: ov2680: Add bus-cfg / endpoint property verification") Signed-off-by: Fabio Estevam <festevam@denx.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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- 02 Apr, 2024 2 commits
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Fabio Estevam authored
'no-emmc' is not a valid property. The original intention was to use the 'no-mmc' property. Change it accordingly to fix the following dt-schema warning: imx7s-mba7.dtb: mmc@30b40000: Unevaluated properties are not allowed ('no-emmc' was unexpected) Fixes: d430a7e0 ("ARM: dts: imx7-mba7: restrict usdhc interface modes") Signed-off-by: Fabio Estevam <festevam@denx.de> Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Frank Li authored
The actual clock show wrong frequency: echo on >/sys/devices/platform/bus\@5b000000/5b010000.mmc/power/control cat /sys/kernel/debug/mmc0/ios clock: 200000000 Hz actual clock: 166000000 Hz ^^^^^^^^^ ..... According to sdhc0_lpcg: clock-controller@5b200000 { compatible = "fsl,imx8qxp-lpcg"; reg = <0x5b200000 0x10000>; #clock-cells = <1>; clocks = <&clk IMX_SC_R_SDHC_0 IMX_SC_PM_CLK_PER>, <&conn_ipg_clk>, <&conn_axi_clk>; clock-indices = <IMX_LPCG_CLK_0>, <IMX_LPCG_CLK_4>, <IMX_LPCG_CLK_5>; clock-output-names = "sdhc0_lpcg_per_clk", "sdhc0_lpcg_ipg_clk", "sdhc0_lpcg_ahb_clk"; power-domains = <&pd IMX_SC_R_SDHC_0>; } "per_clk" should be IMX_LPCG_CLK_0 instead of IMX_LPCG_CLK_5. After correct clocks order: echo on >/sys/devices/platform/bus\@5b000000/5b010000.mmc/power/control cat /sys/kernel/debug/mmc0/ios clock: 200000000 Hz actual clock: 198000000 Hz ^^^^^^^^ ... Fixes: 16c4ea75 ("arm64: dts: imx8: switch to new lpcg clock binding") Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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- 29 Mar, 2024 2 commits
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Tim Harvey authored
When using usb-conn-gpio to control USB role and VBUS, the vbus-supply property must be present in the usb-conn-gpio node. Additionally it should not be present in the phy node as that isn't what controls vbus and will upset the use count. This resolves an issue where VBUS is enabled with OTG in peripheral mode. Fixes: ad9a12f7 ("arm64: dts: imx8mp-venice: Fix USB connector description") Signed-off-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Tim Harvey authored
When using usb-conn-gpio to control USB role and VBUS, the vbus-supply property must be present in the usb-conn-gpio node. Additionally it should not be present in the phy node as that isn't what controls vbus and will upset the use count. This resolves an issue where VBUS is enabled with OTG in peripheral mode. Fixes: ad9a12f7 ("arm64: dts: imx8mp-venice: Fix USB connector description") Signed-off-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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- 24 Mar, 2024 13 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efiLinus Torvalds authored
Pull EFI fixes from Ard Biesheuvel: - Fix logic that is supposed to prevent placement of the kernel image below LOAD_PHYSICAL_ADDR - Use the firmware stack in the EFI stub when running in mixed mode - Clear BSS only once when using mixed mode - Check efi.get_variable() function pointer for NULL before trying to call it * tag 'efi-fixes-for-v6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: efi: fix panic in kdump kernel x86/efistub: Don't clear BSS twice in mixed mode x86/efistub: Call mixed mode boot services on the firmware's stack efi/libstub: fix efi_random_alloc() to allocate memory at alloc_min or higher address
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: - Ensure that the encryption mask at boot is properly propagated on 5-level page tables, otherwise the PGD entry is incorrectly set to non-encrypted, which causes system crashes during boot. - Undo the deferred 5-level page table setup as it cannot work with memory encryption enabled. - Prevent inconsistent XFD state on CPU hotplug, where the MSR is reset to the default value but the cached variable is not, so subsequent comparisons might yield the wrong result and as a consequence the result prevents updating the MSR. - Register the local APIC address only once in the MPPARSE enumeration to prevent triggering the related WARN_ONs() in the APIC and topology code. - Handle the case where no APIC is found gracefully by registering a fake APIC in the topology code. That makes all related topology functions work correctly and does not affect the actual APIC driver code at all. - Don't evaluate logical IDs during early boot as the local APIC IDs are not yet enumerated and the invoked function returns an error code. Nothing requires the logical IDs before the final CPUID enumeration takes place, which happens after the enumeration. - Cure the fallout of the per CPU rework on UP which misplaced the copying of boot_cpu_data to per CPU data so that the final update to boot_cpu_data got lost which caused inconsistent state and boot crashes. - Use copy_from_kernel_nofault() in the kprobes setup as there is no guarantee that the address can be safely accessed. - Reorder struct members in struct saved_context to work around another kmemleak false positive - Remove the buggy code which tries to update the E820 kexec table for setup_data as that is never passed to the kexec kernel. - Update the resource control documentation to use the proper units. - Fix a Kconfig warning observed with tinyconfig * tag 'x86-urgent-2024-03-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot/64: Move 5-level paging global variable assignments back x86/boot/64: Apply encryption mask to 5-level pagetable update x86/cpu: Add model number for another Intel Arrow Lake mobile processor x86/fpu: Keep xfd_state in sync with MSR_IA32_XFD Documentation/x86: Document that resctrl bandwidth control units are MiB x86/mpparse: Register APIC address only once x86/topology: Handle the !APIC case gracefully x86/topology: Don't evaluate logical IDs during early boot x86/cpu: Ensure that CPU info updates are propagated on UP kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address x86/pm: Work around false positive kmemleak report in msr_build_context() x86/kexec: Do not update E820 kexec table for setup_data x86/config: Fix warning for 'make ARCH=x86_64 tinyconfig'
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler doc clarification from Thomas Gleixner: "A single update for the documentation of the base_slice_ns tunable to clarify that any value which is less than the tick slice has no effect because the scheduler tick is not guaranteed to happen within the set time slice" * tag 'sched-urgent-2024-03-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/doc: Update documentation for base_slice_ns and CONFIG_HZ relation
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git://git.infradead.org/users/hch/dma-mappingLinus Torvalds authored
Pull dma-mapping fixes from Christoph Hellwig: "This has a set of swiotlb alignment fixes for sometimes very long standing bugs from Will. We've been discussion them for a while and they should be solid now" * tag 'dma-mapping-6.9-2024-03-24' of git://git.infradead.org/users/hch/dma-mapping: swiotlb: Reinstate page-alignment for mappings >= PAGE_SIZE iommu/dma: Force swiotlb_max_mapping_size on an untrusted device swiotlb: Fix alignment checks when both allocation and DMA masks are present swiotlb: Honour dma_alloc_coherent() alignment in swiotlb_alloc() swiotlb: Enforce page alignment in swiotlb_alloc() swiotlb: Fix double-allocation of slots due to broken alignment handling
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Oleksandr Tymoshenko authored
Check if get_next_variable() is actually valid pointer before calling it. In kdump kernel this method is set to NULL that causes panic during the kexec-ed kernel boot. Tested with QEMU and OVMF firmware. Fixes: bad267f9 ("efi: verify that variable services are supported") Signed-off-by: Oleksandr Tymoshenko <ovt@google.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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Ard Biesheuvel authored
Clearing BSS should only be done once, at the very beginning. efi_pe_entry() is the entrypoint from the firmware, which may not clear BSS and so it is done explicitly. However, efi_pe_entry() is also used as an entrypoint by the mixed mode startup code, in which case BSS will already have been cleared, and doing it again at this point will corrupt global variables holding the firmware's GDT/IDT and segment selectors. So make the memset() conditional on whether the EFI stub is running in native mode. Fixes: b3810c5a ("x86/efistub: Clear decompressor BSS in native EFI entrypoint") Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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Ard Biesheuvel authored
Normally, the EFI stub calls into the EFI boot services using the stack that was live when the stub was entered. According to the UEFI spec, this stack needs to be at least 128k in size - this might seem large but all asynchronous processing and event handling in EFI runs from the same stack and so quite a lot of space may be used in practice. In mixed mode, the situation is a bit different: the bootloader calls the 32-bit EFI stub entry point, which calls the decompressor's 32-bit entry point, where the boot stack is set up, using a fixed allocation of 16k. This stack is still in use when the EFI stub is started in 64-bit mode, and so all calls back into the EFI firmware will be using the decompressor's limited boot stack. Due to the placement of the boot stack right after the boot heap, any stack overruns have gone unnoticed. However, commit 5c4feadb0011983b ("x86/decompressor: Move global symbol references to C code") moved the definition of the boot heap into C code, and now the boot stack is placed right at the base of BSS, where any overruns will corrupt the end of the .data section. While it would be possible to work around this by increasing the size of the boot stack, doing so would affect all x86 systems, and mixed mode systems are a tiny (and shrinking) fraction of the x86 installed base. So instead, record the firmware stack pointer value when entering from the 32-bit firmware, and switch to this stack every time a EFI boot service call is made. Cc: <stable@kernel.org> # v6.1+ Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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Tom Lendacky authored
Commit 63bed966 ("x86/startup_64: Defer assignment of 5-level paging global variables") moved assignment of 5-level global variables to later in the boot in order to avoid having to use RIP relative addressing in order to set them. However, when running with 5-level paging and SME active (mem_encrypt=on), the variables are needed as part of the page table setup needed to encrypt the kernel (using pgd_none(), p4d_offset(), etc.). Since the variables haven't been set, the page table manipulation is done as if 4-level paging is active, causing the system to crash on boot. While only a subset of the assignments that were moved need to be set early, move all of the assignments back into check_la57_support() so that these assignments aren't spread between two locations. Instead of just reverting the fix, this uses the new RIP_REL_REF() macro when assigning the variables. Fixes: 63bed966 ("x86/startup_64: Defer assignment of 5-level paging global variables") Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/2ca419f4d0de719926fd82353f6751f717590a86.1711122067.git.thomas.lendacky@amd.com
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Tom Lendacky authored
When running with 5-level page tables, the kernel mapping PGD entry is updated to point to the P4D table. The assignment uses _PAGE_TABLE_NOENC, which, when SME is active (mem_encrypt=on), results in a page table entry without the encryption mask set, causing the system to crash on boot. Change the assignment to use _PAGE_TABLE instead of _PAGE_TABLE_NOENC so that the encryption mask is set for the PGD entry. Fixes: 533568e0 ("x86/boot/64: Use RIP_REL_REF() to access early_top_pgt[]") Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/8f20345cda7dbba2cf748b286e1bc00816fe649a.1711122067.git.thomas.lendacky@amd.com
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Tony Luck authored
This one is the regular laptop CPU. Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20240322161725.195614-1-tony.luck@intel.com
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Adamos Ttofari authored
Commit 67236547 ("x86/fpu: Update XFD state where required") and commit 8bf26758 ("x86/fpu: Add XFD state to fpstate") introduced a per CPU variable xfd_state to keep the MSR_IA32_XFD value cached, in order to avoid unnecessary writes to the MSR. On CPU hotplug MSR_IA32_XFD is reset to the init_fpstate.xfd, which wipes out any stale state. But the per CPU cached xfd value is not reset, which brings them out of sync. As a consequence a subsequent xfd_update_state() might fail to update the MSR which in turn can result in XRSTOR raising a #NM in kernel space, which crashes the kernel. To fix this, introduce xfd_set_state() to write xfd_state together with MSR_IA32_XFD, and use it in all places that set MSR_IA32_XFD. Fixes: 67236547 ("x86/fpu: Update XFD state where required") Signed-off-by: Adamos Ttofari <attofari@amazon.de> Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240322230439.456571-1-chang.seok.bae@intel.com Closes: https://lore.kernel.org/lkml/20230511152818.13839-1-attofari@amazon.de
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Tony Luck authored
The memory bandwidth software controller uses 2^20 units rather than 10^6. See mbm_bw_count() which computes bandwidth using the "SZ_1M" Linux define for 0x00100000. Update the documentation to use MiB when describing this feature. It's too late to fix the mount option "mba_MBps" as that is now an established user interface. Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20240322182016.196544-1-tony.luck@intel.com
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- 23 Mar, 2024 11 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fixes from Thomas Gleixner: "Two regression fixes for the timer and timer migration code: - Prevent endless timer requeuing which is caused by two CPUs racing out of idle. This happens when the last CPU goes idle and therefore has to ensure to expire the pending global timers and some other CPU come out of idle at the same time and the other CPU wins the race and expires the global queue. This causes the last CPU to chase ghost timers forever and reprogramming it's clockevent device endlessly. Cure this by re-evaluating the wakeup time unconditionally. - The split into local (pinned) and global timers in the timer wheel caused a regression for NOHZ full as it broke the idle tracking of global timers. On NOHZ full this prevents an self IPI being sent which in turn causes the timer to be not programmed and not being expired on time. Restore the idle tracking for the global timer base so that the self IPI condition for NOHZ full is working correctly again" * tag 'timers-urgent-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timers: Fix removed self-IPI on global timer's enqueue in nohz_full timers/migration: Fix endless timer requeue after idle interrupts
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull more clocksource updates from Thomas Gleixner: "A set of updates for clocksource and clockevent drivers: - A fix for the prescaler of the ARM global timer where the prescaler mask define only covered 4 bits while it is actully 8 bits wide. This obviously restricted the possible range of prescaler adjustments - A fix for the RISC-V timer which prevents a timer interrupt being raised while the timer is initialized - A set of device tree updates to support new system on chips in various drivers - Kernel-doc and other cleanups all over the place" * tag 'timers-core-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource/drivers/timer-riscv: Clear timer interrupt on timer initialization dt-bindings: timer: Add support for cadence TTC PWM clocksource/drivers/arm_global_timer: Simplify prescaler register access clocksource/drivers/arm_global_timer: Guard against division by zero clocksource/drivers/arm_global_timer: Make gt_target_rate unsigned long dt-bindings: timer: add Ralink SoCs system tick counter clocksource: arm_global_timer: fix non-kernel-doc comment clocksource/drivers/arm_global_timer: Remove stray tab clocksource/drivers/arm_global_timer: Fix maximum prescaler value clocksource/drivers/imx-sysctr: Add i.MX95 support clocksource/drivers/imx-sysctr: Drop use global variables dt-bindings: timer: nxp,sysctr-timer: support i.MX95 dt-bindings: timer: renesas: ostm: Document RZ/Five SoC dt-bindings: timer: renesas,tmu: Document input capture interrupt clocksource/drivers/ti-32K: Fix misuse of "/**" comment clocksource/drivers/stm32: Fix all kernel-doc warnings dt-bindings: timer: exynos4210-mct: Add google,gs101-mct compatible clocksource/drivers/imx: Fix -Wunused-but-set-variable warning
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fixes from Thomas Gleixner: "A series of fixes for the Renesas RZG21 interrupt chip driver to prevent spurious and misrouted interrupts. - Ensure that posted writes are flushed in the eoi() callback - Ensure that interrupts are masked at the chip level when the trigger type is changed - Clear the interrupt status register when setting up edge type trigger modes - Ensure that the trigger type and routing information is set before the interrupt is enabled" * tag 'irq-urgent-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/renesas-rzg2l: Do not set TIEN and TINT source at the same time irqchip/renesas-rzg2l: Prevent spurious interrupts when setting trigger type irqchip/renesas-rzg2l: Rename rzg2l_irq_eoi() irqchip/renesas-rzg2l: Rename rzg2l_tint_eoi() irqchip/renesas-rzg2l: Flush posted write in irq_eoi()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull core entry fix from Thomas Gleixner: "A single fix for the generic entry code: The trace_sys_enter() tracepoint can modify the syscall number via kprobes or BPF in pt_regs, but that requires that the syscall number is re-evaluted from pt_regs after the tracepoint. A seccomp fix in that area removed the re-evaluation so the change does not take effect as the code just uses the locally cached number. Restore the original behaviour by re-evaluating the syscall number after the tracepoint" * tag 'core-entry-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: entry: Respect changes to system call number by trace_sys_enter()
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull more powerpc updates from Michael Ellerman: - Handle errors in mark_rodata_ro() and mark_initmem_nx() - Make struct crash_mem available without CONFIG_CRASH_DUMP Thanks to Christophe Leroy and Hari Bathini. * tag 'powerpc-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/kdump: Split KEXEC_CORE and CRASH_DUMP dependency powerpc/kexec: split CONFIG_KEXEC_FILE and CONFIG_CRASH_DUMP kexec/kdump: make struct crash_mem available without CONFIG_CRASH_DUMP powerpc: Handle error in mark_rodata_ro() and mark_initmem_nx()
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM updates from Russell King: - remove a misuse of kernel-doc comment - use "Call trace:" for backtraces like other architectures - implement copy_from_kernel_nofault_allowed() to fix a LKDTM test - add a "cut here" line for prefetch aborts - remove unnecessary Kconfing entry for FRAME_POINTER - remove iwmmxy support for PJ4/PJ4B cores - use bitfield helpers in ptrace to improve readabililty - check if folio is reserved before flushing * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses ARM: 9354/1: ptrace: Use bitfield helpers ARM: 9352/1: iwmmxt: Remove support for PJ4/PJ4B cores ARM: 9353/1: remove unneeded entry for CONFIG_FRAME_POINTER ARM: 9351/1: fault: Add "cut here" line for prefetch aborts ARM: 9350/1: fault: Implement copy_from_kernel_nofault_allowed() ARM: 9349/1: unwind: Add missing "Call trace:" line ARM: 9334/1: mm: init: remove misuse of kernel-doc comment
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxLinus Torvalds authored
Pull more hardening updates from Kees Cook: - CONFIG_MEMCPY_SLOW_KUNIT_TEST is no longer needed (Guenter Roeck) - Fix needless UTF-8 character in arch/Kconfig (Liu Song) - Improve __counted_by warning message in LKDTM (Nathan Chancellor) - Refactor DEFINE_FLEX() for default use of __counted_by - Disable signed integer overflow sanitizer on GCC < 8 * tag 'hardening-v6.9-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: lkdtm/bugs: Improve warning message for compilers without counted_by support overflow: Change DEFINE_FLEX to take __counted_by member Revert "kunit: memcpy: Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST" arch/Kconfig: eliminate needless UTF-8 character in Kconfig help ubsan: Disable signed integer overflow sanitizer on GCC < 8
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Thomas Gleixner authored
The APIC address is registered twice. First during the early detection and afterwards when actually scanning the table for APIC IDs. The APIC and topology core warn about the second attempt. Restrict it to the early detection call. Fixes: 81287ad6 ("x86/apic: Sanitize APIC address setup") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20240322185305.297774848@linutronix.de
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Thomas Gleixner authored
If there is no local APIC enumerated and registered then the topology bitmaps are empty. Therefore, topology_init_possible_cpus() will die with a division by zero exception. Prevent this by registering a fake APIC id to populate the topology bitmap. This also allows to use all topology query interfaces unconditionally. It does not affect the actual APIC code because either the local APIC address was not registered or no local APIC could be detected. Fixes: f1f758a8 ("x86/topology: Add a mechanism to track topology via APIC IDs") Reported-by: Guenter Roeck <linux@roeck-us.net> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20240322185305.242709302@linutronix.de
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Thomas Gleixner authored
The local APICs have not yet been enumerated so the logical ID evaluation from the topology bitmaps does not work and would return an error code. Skip the evaluation during the early boot CPUID evaluation and only apply it on the final run. Fixes: 380414be ("x86/cpu/topology: Use topology logical mapping mechanism") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20240322185305.186943142@linutronix.de
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Thomas Gleixner authored
The boot sequence evaluates CPUID information twice: 1) During early boot 2) When finalizing the early setup right before mitigations are selected and alternatives are patched. In both cases the evaluation is stored in boot_cpu_data, but on UP the copying of boot_cpu_data to the per CPU info of the boot CPU happens between #1 and #2. So any update which happens in #2 is never propagated to the per CPU info instance. Consolidate the whole logic and copy boot_cpu_data right before applying alternatives as that's the point where boot_cpu_data is in it's final state and not supposed to change anymore. This also removes the voodoo mb() from smp_prepare_cpus_common() which had absolutely no purpose. Fixes: 71eb4893 ("x86/percpu: Cure per CPU madness on UP") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20240322185305.127642785@linutronix.de
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- 22 Mar, 2024 10 commits
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Nathan Chancellor authored
The current message for telling the user that their compiler does not support the counted_by attribute in the FAM_BOUNDS test does not make much sense either grammatically or semantically. Fix it to make it correct in both aspects. Signed-off-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20240321-lkdtm-improve-lack-of-counted_by-msg-v1-1-0fbf7481a29c@kernel.orgSigned-off-by: Kees Cook <keescook@chromium.org>
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Kees Cook authored
The norm should be flexible array structures with __counted_by annotations, so DEFINE_FLEX() is updated to expect that. Rename the non-annotated version to DEFINE_RAW_FLEX(), and update the few existing users. Additionally add selftests for the macros. Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20240306235128.it.933-kees@kernel.orgReviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Kees Cook <keescook@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull more SCSI updates from James Bottomley: "The vfs has long had a write lifetime hint mechanism that gives the expected longevity on storage of the data being written. f2fs was the original consumer of this and used the hint for flash data placement (mostly to avoid write amplification by placing objects with similar lifetimes in the same erase block). More recently the SCSI based UFS (Universal Flash Storage) drivers have wanted to take advantage of this as well, for the same reasons as f2fs, necessitating plumbing the write hints through the block layer and then adding it to the SCSI core. The vfs write_hints already taken plumbs this as far as block and this completes the SCSI core enabling based on a recently agreed reuse of the old write command group number. The additions to the scsi_debug driver are for emulating this property so we can run tests on it in the absence of an actual UFS device" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: scsi_debug: Maintain write statistics per group number scsi: scsi_debug: Implement GET STREAM STATUS scsi: scsi_debug: Implement the IO Advice Hints Grouping mode page scsi: scsi_debug: Allocate the MODE SENSE response from the heap scsi: scsi_debug: Rework subpage code error handling scsi: scsi_debug: Rework page code error handling scsi: scsi_debug: Support the block limits extension VPD page scsi: scsi_debug: Reduce code duplication scsi: sd: Translate data lifetime information scsi: scsi_proto: Add structures and constants related to I/O groups and streams scsi: core: Query the Block Limits Extension VPD page
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git://git.kernel.dk/linuxLinus Torvalds authored
Pull more block updates from Jens Axboe: - NVMe pull request via Keith: - Make an informative message less ominous (Keith) - Enhanced trace decoding (Guixin) - TCP updates (Hannes, Li) - Fabrics connect deadlock fix (Chunguang) - Platform API migration update (Uwe) - A new device quirk (Jiawei) - Remove dead assignment in fd (Yufeng) * tag 'block-6.9-20240322' of git://git.kernel.dk/linux: nvmet-rdma: remove NVMET_RDMA_REQ_INVALIDATE_RKEY flag nvme: remove redundant BUILD_BUG_ON check floppy: remove duplicated code in redo_fd_request() nvme/tcp: Add wq_unbound modparam for nvme_tcp_wq nvme-tcp: Export the nvme_tcp_wq to sysfs drivers/nvme: Add quirks for device 126f:2262 nvme: parse format command's lbafu when tracing nvme: add tracing of reservation commands nvme: parse zns command's zsa and zrasf to string nvme: use nvme_disk_is_ns_head helper nvme: fix reconnection fail due to reserved tag allocation nvmet: add tracing of zns commands nvmet: add tracing of authentication commands nvme-apple: Convert to platform remove callback returning void nvmet-tcp: do not continue for invalid icreq nvme: change shutdown timeout setting message
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git://git.kernel.dk/linuxLinus Torvalds authored
Pull more io_uring updates from Jens Axboe: "One patch just missed the initial pull, the rest are either fixes or small cleanups that make our life easier for the next kernel: - Fix a potential leak in error handling of pinned pages, and clean it up (Gabriel, Pavel) - Fix an issue with how read multishot returns retry (me) - Fix a problem with waitid/futex removals, if we hit the case of needing to remove all of them at exit time (me) - Fix for a regression introduced in this merge window, where we don't always have sr->done_io initialized if the ->prep_async() path is used (me) - Fix for SQPOLL setup error handling (me) - Fix for a poll removal request being delayed (Pavel) - Rename of a struct member which had a confusing name (Pavel)" * tag 'io_uring-6.9-20240322' of git://git.kernel.dk/linux: io_uring/sqpoll: early exit thread if task_context wasn't allocated io_uring: clear opcode specific data for an early failure io_uring/net: ensure async prep handlers always initialize ->done_io io_uring/waitid: always remove waitid entry for cancel all io_uring/futex: always remove futex entry for cancel all io_uring: fix poll_remove stalled req completion io_uring: Fix release of pinned pages when __io_uaddr_map fails io_uring/kbuf: rename is_mapped io_uring: simplify io_pages_free io_uring: clean rings on NO_MMAP alloc fail io_uring/rw: return IOU_ISSUE_SKIP_COMPLETE for multishot retry io_uring: don't save/restore iowait state
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Linus Torvalds authored
Merge tag 'for-6.9/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: - Fix a memory leak in DM integrity recheck code that was added during the 6.9 merge. Also fix the recheck code to ensure it issues bios with proper alignment. - Fix DM snapshot's dm_exception_table_exit() to schedule while handling an large exception table during snapshot device shutdown. * tag 'for-6.9/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm-integrity: align the outgoing bio in integrity_recheck dm snapshot: fix lockup in dm_exception_table_exit dm-integrity: fix a memory leak when rechecking the data
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https://github.com/ceph/ceph-clientLinus Torvalds authored
Pull ceph updates from Ilya Dryomov: "A patch to minimize blockage when processing very large batches of dirty caps and two fixes to better handle EOF in the face of multiple clients performing reads and size-extending writes at the same time" * tag 'ceph-for-6.9-rc1' of https://github.com/ceph/ceph-client: ceph: set correct cap mask for getattr request for read ceph: stop copying to iter at EOF on sync reads ceph: remove SLAB_MEM_SPREAD flag usage ceph: break the check delayed cap loop every 5s
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull xfs fixes from Chandan Babu: - Fix invalid pointer dereference by initializing xmbuf before tracepoint function is invoked - Use memalloc_nofs_save() when inserting into quota radix tree * tag 'xfs-6.9-merge-9' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: quota radix tree allocations need to be NOFS on insert xfs: fix dev_t usage in xmbuf tracepoints
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linuxLinus Torvalds authored
Pull RISC-V updates from Palmer Dabbelt: - Support for various vector-accelerated crypto routines - Hibernation is now enabled for portable kernel builds - mmap_rnd_bits_max is larger on systems with larger VAs - Support for fast GUP - Support for membarrier-based instruction cache synchronization - Support for the Andes hart-level interrupt controller and PMU - Some cleanups around unaligned access speed probing and Kconfig settings - Support for ACPI LPI and CPPC - Various cleanus related to barriers - A handful of fixes * tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (66 commits) riscv: Fix syscall wrapper for >word-size arguments crypto: riscv - add vector crypto accelerated AES-CBC-CTS crypto: riscv - parallelize AES-CBC decryption riscv: Only flush the mm icache when setting an exec pte riscv: Use kcalloc() instead of kzalloc() riscv/barrier: Add missing space after ',' riscv/barrier: Consolidate fence definitions riscv/barrier: Define RISCV_FULL_BARRIER riscv/barrier: Define __{mb,rmb,wmb} RISC-V: defconfig: Enable CONFIG_ACPI_CPPC_CPUFREQ cpufreq: Move CPPC configs to common Kconfig and add RISC-V ACPI: RISC-V: Add CPPC driver ACPI: Enable ACPI_PROCESSOR for RISC-V ACPI: RISC-V: Add LPI driver cpuidle: RISC-V: Move few functions to arch/riscv riscv: Introduce set_compat_task() in asm/compat.h riscv: Introduce is_compat_thread() into compat.h riscv: add compile-time test into is_compat_task() riscv: Replace direct thread flag check with is_compat_task() riscv: Improve arch_get_mmap_end() macro ...
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Linus Torvalds authored
Merge tag 'loongarch-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson Pull LoongArch updates from Huacai Chen: - Add objtool support for LoongArch - Add ORC stack unwinder support for LoongArch - Add kernel livepatching support for LoongArch - Select ARCH_HAS_CURRENT_STACK_POINTER in Kconfig - Select HAVE_ARCH_USERFAULTFD_MINOR in Kconfig - Some bug fixes and other small changes * tag 'loongarch-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: LoongArch/crypto: Clean up useless assignment operations LoongArch: Define the __io_aw() hook as mmiowb() LoongArch: Remove superfluous flush_dcache_page() definition LoongArch: Move {dmw,tlb}_virt_to_page() definition to page.h LoongArch: Change __my_cpu_offset definition to avoid mis-optimization LoongArch: Select HAVE_ARCH_USERFAULTFD_MINOR in Kconfig LoongArch: Select ARCH_HAS_CURRENT_STACK_POINTER in Kconfig LoongArch: Add kernel livepatching support LoongArch: Add ORC stack unwinder support objtool: Check local label in read_unwind_hints() objtool: Check local label in add_dead_ends() objtool/LoongArch: Enable orc to be built objtool/x86: Separate arch-specific and generic parts objtool/LoongArch: Implement instruction decoder objtool/LoongArch: Enable objtool to be built
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