Re: [RFC PATCH v2 18/19] x86/mm: Add PKS table soft mode

[RFC PATCH v2 00/19] PKS write protected page tables · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 01/19] list: Support getting most recent element in list_lru · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 02/19] list: Support list head not in object for list_lru · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 03/19] x86/mm/cpa: Add grouped page allocations · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 04/19] mm: Explicitly zero page table lock ptr · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 05/19] x86, mm: Use cache of page tables · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
Re: [RFC PATCH v2 05/19] x86, mm: Use cache of page tables · Mike Rapoport <rppt@kernel.org> · 2021-08-31
Re: [RFC PATCH v2 05/19] x86, mm: Use cache of page tables · "Edgecombe, Rick P" <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 06/19] x86/mm/cpa: Add perm callbacks to grouped pages · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 07/19] x86/cpufeatures: Add feature for pks tables · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 08/19] x86/mm/cpa: Add get_grouped_page_atomic() · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 09/19] x86/mm: Support GFP_ATOMIC in alloc_table_node() · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
Re: [RFC PATCH v2 09/19] x86/mm: Support GFP_ATOMIC in alloc_table_node() · Mike Rapoport <rppt@kernel.org> · 2021-08-31
[RFC PATCH v2 10/19] x86/mm: Use alloc_table() for fill_pte(), etc · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
Re: [RFC PATCH v2 10/19] x86/mm: Use alloc_table() for fill_pte(), etc · Mike Rapoport <rppt@kernel.org> · 2021-08-31
Re: [RFC PATCH v2 10/19] x86/mm: Use alloc_table() for fill_pte(), etc · "Edgecombe, Rick P" <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 11/19] mm/sparsemem: Use alloc_table() for table allocations · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
Re: [RFC PATCH v2 11/19] mm/sparsemem: Use alloc_table() for table allocations · Mike Rapoport <rppt@kernel.org> · 2021-08-31
Re: [RFC PATCH v2 11/19] mm/sparsemem: Use alloc_table() for table allocations · "Edgecombe, Rick P" <rick.p.edgecombe@intel.com> · 2021-08-31
Re: [RFC PATCH v2 11/19] mm/sparsemem: Use alloc_table() for table allocations · Mike Rapoport <rppt@kernel.org> · 2021-09-01
Re: [RFC PATCH v2 11/19] mm/sparsemem: Use alloc_table() for table allocations · Vlastimil Babka <hidden> · 2021-09-02
[RFC PATCH v2 12/19] x86/mm: Use free_table in unmap path · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 13/19] mm/debug_vm_page_table: Use setters instead of WRITE_ONCE · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 14/19] x86/efi: Toggle table protections when copying · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 15/19] x86/mm/cpa: Add set_memory_pks() · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 16/19] x86/mm: Protect page tables with PKS · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
Re: [RFC PATCH v2 16/19] x86/mm: Protect page tables with PKS · Mike Rapoport <rppt@kernel.org> · 2021-08-31
Re: [RFC PATCH v2 16/19] x86/mm: Protect page tables with PKS · "Edgecombe, Rick P" <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 17/19] x86/mm/cpa: PKS protect direct map page tables · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
Re: [RFC PATCH v2 17/19] x86/mm/cpa: PKS protect direct map page tables · Mike Rapoport <rppt@kernel.org> · 2021-08-31
Re: [RFC PATCH v2 17/19] x86/mm/cpa: PKS protect direct map page tables · "Edgecombe, Rick P" <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 18/19] x86/mm: Add PKS table soft mode · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
Re: [RFC PATCH v2 18/19] x86/mm: Add PKS table soft mode · Randy Dunlap <hidden> · 2021-08-31
Re: [RFC PATCH v2 18/19] x86/mm: Add PKS table soft mode · "Edgecombe, Rick P" <rick.p.edgecombe@intel.com> · 2021-08-31
[RFC PATCH v2 19/19] x86/mm: Add PKS table debug checking · Rick Edgecombe <rick.p.edgecombe@intel.com> · 2021-08-31
Re: [RFC PATCH v2 00/19] PKS write protected page tables · Kees Cook <hidden> · 2024-03-14
Re: [RFC PATCH v2 00/19] PKS write protected page tables · "Edgecombe, Rick P" <rick.p.edgecombe@intel.com> · 2024-03-14
Re: [RFC PATCH v2 00/19] PKS write protected page tables · Ira Weiny <ira.weiny@intel.com> · 2024-03-14
Re: [RFC PATCH v2 00/19] PKS write protected page tables · Boris Lukashev <hidden> · 2024-03-16

From: Randy Dunlap <hidden>
Date: 2021-08-31 03:50:02
Also in: linux-mm, lkml

On 8/30/21 4:59 PM, Rick Edgecombe wrote:

quoted hunk ↗ jump to hunk

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 7902fce7f1da..8bb290fee77f 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt

@@ -4254,6 +4254,10 @@
  	nopti		[X86-64]
  			Equivalent to pti=off
  
+	nopkstables	[X86-64] Disable PKS page table protection
+
+	pkstablessoft	[X86-64] Warn instead of oops on pks tables violations

preferably		                                 PKS

+
  	pty.legacy_count=
  			[KNL] Number of legacy pty's. Overwrites compiled-in
  			default number.


-- 
~Randy

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