From nobody Thu Sep 18 17:10:56 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA0B6C47089 for ; Sun, 4 Dec 2022 01:31:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229575AbiLDBbB (ORCPT ); Sat, 3 Dec 2022 20:31:01 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35472 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229450AbiLDBbA (ORCPT ); Sat, 3 Dec 2022 20:31:00 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 396981A065; Sat, 3 Dec 2022 17:30:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:In-Reply-To:References; bh=f5BszEzuXRFPTLRULdjAwhxfF5sskkT10Q/DrW/LbMw=; b=tzchrICJeOk6XHbyGTwCjZ6KVM ZOuFhC+RIO5YWXl3/h63iSUqoHr53spU6G3ArMDKlXlP4bG+QGwmUvJy1AuNfGXSibIE6dZabt+qc 61XlLsSLWtREjtaB1+x15sFPiRYK2u/+YS16OCq6bdQnCFXUdZgjVatvM29tixb1wxbQhBT6PQdnT sOeyuq2HVGfNa3OFz+4H0mPo3c2A+eD0JXyy0KVsIdF7Ps6ZlfAoo9M3PMInhwI5dud2aXPLPLucg dljV3y0/nWA7sqYmwHW9KR6bphFaqtCejN9yBvLEB6mMgk9zqkhP8TGnGiAJRlXHY9osE01JYZ102 fXc+JPJA==; Received: from [2601:1c2:d80:3110::a2e7] (helo=casper.infradead.org) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1p1dqQ-001gys-3w; Sun, 04 Dec 2022 01:31:02 +0000 From: Randy Dunlap To: linux-kernel@vger.kernel.org Cc: Randy Dunlap , Jonathan Corbet , linux-doc@vger.kernel.org Subject: [PATCH] Documentation: admin: move OOO entries in kernel-parameters.txt Date: Sat, 3 Dec 2022 17:30:50 -0800 Message-Id: <20221204013050.11496-1-rdunlap@infradead.org> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Fix the most blatant out-of-order entries in kernel-parameters.txt. No changes other than modifying the order of the entries. Signed-off-by: Randy Dunlap Cc: Jonathan Corbet Cc: linux-doc@vger.kernel.org Reviewed-by: Bagas Sanjaya --- Do not backport. Documentation/admin-guide/kernel-parameters.txt | 122 +++++++------- 1 file changed, 61 insertions(+), 61 deletions(-) diff -- a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/a= dmin-guide/kernel-parameters.txt --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -378,18 +378,16 @@ autoconf=3D [IPV6] See Documentation/networking/ipv6.rst. =20 - show_lapic=3D [APIC,X86] Advanced Programmable Interrupt Controller - Limit apic dumping. The parameter defines the maximal - number of local apics being dumped. Also it is possible - to set it to "all" by meaning -- no limit here. - Format: { 1 (default) | 2 | ... | all }. - The parameter valid if only apic=3Ddebug or - apic=3Dverbose is specified. - Example: apic=3Ddebug show_lapic=3Dall - apm=3D [APM] Advanced Power Management See header of arch/x86/kernel/apm_32.c. =20 + apparmor=3D [APPARMOR] Disable or enable AppArmor at boot time + Format: { "0" | "1" } + See security/apparmor/Kconfig help text + 0 -- disable. + 1 -- enable. + Default value is set via kernel config option. + arcrimi=3D [HW,NET] ARCnet - "RIM I" (entirely mem-mapped) cards Format: ,, =20 @@ -1045,26 +1043,12 @@ can be useful when debugging issues that require an SLB miss to occur. =20 - stress_slb [PPC] - Limits the number of kernel SLB entries, and flushes - them frequently to increase the rate of SLB faults - on kernel addresses. - - stress_hpt [PPC] - Limits the number of kernel HPT entries in the hash - page table to increase the rate of hash page table - faults on kernel addresses. - disable=3D [IPV6] See Documentation/networking/ipv6.rst. =20 disable_radix [PPC] Disable RADIX MMU mode on POWER9 =20 - radix_hcall_invalidate=3Don [PPC/PSERIES] - Disable RADIX GTSE feature and use hcall for TLB - invalidate. - disable_tlbie [PPC] Disable TLBIE instruction. Currently does not work with KVM, with HASH MMU, or with coherent accelerators. @@ -1166,16 +1150,6 @@ Documentation/admin-guide/dynamic-debug-howto.rst for details. =20 - nopku [X86] Disable Memory Protection Keys CPU feature found - in some Intel CPUs. - - .async_probe[=3D] [KNL] - If no value is specified or if the value - specified is not a valid , enable asynchronous - probe on this module. Otherwise, enable/disable - asynchronous probe on this module as indicated by the - value. See also: module.async_probe - early_ioremap_debug [KNL] Enable debug messages in early_ioremap support. This is useful for tracking down temporary early mappings @@ -1791,12 +1765,6 @@ which allow the hypervisor to 'idle' the guest on lock contention. =20 - keep_bootcon [KNL] - Do not unregister boot console at start. This is only - useful for debugging when something happens in the window - between unregistering the boot console and initializing - the real console. - i2c_bus=3D [HW] Override the default board specific I2C bus speed or register an additional I2C bus that is not registered from board initialization code. @@ -2366,17 +2334,18 @@ js=3D [HW,JOY] Analog joystick See Documentation/input/joydev/joystick.rst. =20 - nokaslr [KNL] - When CONFIG_RANDOMIZE_BASE is set, this disables - kernel and module base offset ASLR (Address Space - Layout Randomization). - kasan_multi_shot [KNL] Enforce KASAN (Kernel Address Sanitizer) to print report on every invalid memory access. Without this parameter KASAN will print report only for the first invalid access. =20 + keep_bootcon [KNL] + Do not unregister boot console at start. This is only + useful for debugging when something happens in the window + between unregistering the boot console and initializing + the real console. + keepinitrd [HW,ARM] =20 kernelcore=3D [KNL,X86,IA-64,PPC] @@ -3325,6 +3294,13 @@ For details see: Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst =20 + .async_probe[=3D] [KNL] + If no value is specified or if the value + specified is not a valid , enable asynchronous + probe on this module. Otherwise, enable/disable + asynchronous probe on this module as indicated by the + value. See also: module.async_probe + module.async_probe=3D [KNL] When set to true, modules will use async probing by default. To enable/disable async probing for a @@ -3779,6 +3755,11 @@ =20 nojitter [IA-64] Disables jitter checking for ITC timers. =20 + nokaslr [KNL] + When CONFIG_RANDOMIZE_BASE is set, this disables + kernel and module base offset ASLR (Address Space + Layout Randomization). + no-kvmclock [X86,KVM] Disable paravirtualized KVM clock driver =20 no-kvmapf [X86,KVM] Disable paravirtualized asynchronous page @@ -3824,6 +3805,19 @@ =20 nopcid [X86-64] Disable the PCID cpu feature. =20 + nopku [X86] Disable Memory Protection Keys CPU feature found + in some Intel CPUs. + + nopv=3D [X86,XEN,KVM,HYPER_V,VMWARE] + Disables the PV optimizations forcing the guest to run + as generic guest with no PV drivers. Currently support + XEN HVM, KVM, HYPER_V and VMWARE guest. + + nopvspin [X86,XEN,KVM] + Disables the qspinlock slow path using PV optimizations + which allow the hypervisor to 'idle' the guest on lock + contention. + norandmaps Don't use address space randomization. Equivalent to echo 0 > /proc/sys/kernel/randomize_va_space =20 @@ -4591,6 +4585,10 @@ =20 r128=3D [HW,DRM] =20 + radix_hcall_invalidate=3Don [PPC/PSERIES] + Disable RADIX GTSE feature and use hcall for TLB + invalidate. + raid=3D [HW,RAID] See Documentation/admin-guide/md.rst. =20 @@ -5572,13 +5570,6 @@ 1 -- enable. Default value is 1. =20 - apparmor=3D [APPARMOR] Disable or enable AppArmor at boot time - Format: { "0" | "1" } - See security/apparmor/Kconfig help text - 0 -- disable. - 1 -- enable. - Default value is set via kernel config option. - serialnumber [BUGS=3DX86-32] =20 sev=3Doption[,option...] [X86-64] See Documentation/x86/x86_64/boot-optio= ns.rst @@ -5586,6 +5577,15 @@ shapers=3D [NET] Maximal number of shapers. =20 + show_lapic=3D [APIC,X86] Advanced Programmable Interrupt Controller + Limit apic dumping. The parameter defines the maximal + number of local apics being dumped. Also it is possible + to set it to "all" by meaning -- no limit here. + Format: { 1 (default) | 2 | ... | all }. + The parameter valid if only apic=3Ddebug or + apic=3Dverbose is specified. + Example: apic=3Ddebug show_lapic=3Dall + simeth=3D [IA-64] simscsi=3D =20 @@ -6025,6 +6025,16 @@ be used to filter out binaries which have not yet been made aware of AT_MINSIGSTKSZ. =20 + stress_hpt [PPC] + Limits the number of kernel HPT entries in the hash + page table to increase the rate of hash page table + faults on kernel addresses. + + stress_slb [PPC] + Limits the number of kernel SLB entries, and flushes + them frequently to increase the rate of SLB faults + on kernel addresses. + sunrpc.min_resvport=3D sunrpc.max_resvport=3D [NFS,SUNRPC] @@ -6957,16 +6967,6 @@ fairer and the number of possible event channels is much higher. Default is on (use fifo events). =20 - nopv=3D [X86,XEN,KVM,HYPER_V,VMWARE] - Disables the PV optimizations forcing the guest to run - as generic guest with no PV drivers. Currently support - XEN HVM, KVM, HYPER_V and VMWARE guest. - - nopvspin [X86,XEN,KVM] - Disables the qspinlock slow path using PV optimizations - which allow the hypervisor to 'idle' the guest on lock - contention. - xirc2ps_cs=3D [NET,PCMCIA] Format: ,,,,,[,[,<= irq3>[,]]]