From: Brendan Jackman <jackmanb@google.com>
To: Borislav Petkov <bp@alien8.de>, Brendan Jackman <jackmanb@google.com>
Cc: Andy Lutomirski <luto@kernel.org>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>,
Johannes Weiner <hannes@cmpxchg.org>, Zi Yan <ziy@nvidia.com>,
Axel Rasmussen <axelrasmussen@google.com>,
Yuanchu Xie <yuanchu@google.com>,
Roman Gushchin <roman.gushchin@linux.dev>,
<peterz@infradead.org>, <dave.hansen@linux.intel.com>,
<mingo@redhat.com>, <tglx@linutronix.de>,
<akpm@linux-foundation.org>, <david@redhat.com>,
<derkling@google.com>, <junaids@google.com>,
<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
<reijiw@google.com>, <rientjes@google.com>, <rppt@kernel.org>,
<vbabka@suse.cz>, <x86@kernel.org>, <yosry.ahmed@linux.dev>
Subject: Re: [PATCH 01/21] x86/mm/asi: Add CONFIG_MITIGATION_ADDRESS_SPACE_ISOLATION
Date: Fri, 24 Oct 2025 23:32:30 +0000 [thread overview]
Message-ID: <DDQY0TEKY4MU.2MMSAEB8QQZ4S@google.com> (raw)
In-Reply-To: <20251024223746.GTaPv_uiyc0wd1fPjV@fat_crate.local>
On Fri Oct 24, 2025 at 10:37 PM UTC, Borislav Petkov wrote:
> On Wed, Sep 24, 2025 at 02:59:36PM +0000, Brendan Jackman wrote:
>> This long awkward name is for consistency with
>> CONFIG_MITIGATION_PAGE_TABLE_ISOLATION.
>
> But why?
>
> I bet you someone will get confused and mean
> CONFIG_MITIGATION_PAGE_TABLE_ISOLATION when she means
> CONFIG_MITIGATION_ADDRESS_SPACE_ISOLATION or vice versa due to the
> conglomerate of similar words.
>
> Now compare that to CONFIG_ASI! Wonderfully short and clear.
>
> Especially when the namespace already is "asi_" ...
>
> The only problem with ASI is it doesn't tell you what it is but you can look
> it up with simple grepping...
>
> I'd say.
Sure, CONFIG_ASI sounds great to me, if it sounds good to you :)
And yeah if someone doesn't know what ASI is, they probably don't know
what ADDRESS_SPACE_ISOLATION is either to be honest. The Kconfig file
has a nice place to document it.
next prev parent reply other threads:[~2025-10-24 23:32 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-24 14:59 [PATCH 00/21] mm: ASI direct map management Brendan Jackman
2025-09-24 14:59 ` [PATCH 01/21] x86/mm/asi: Add CONFIG_MITIGATION_ADDRESS_SPACE_ISOLATION Brendan Jackman
2025-10-24 22:37 ` Borislav Petkov
2025-10-24 23:32 ` Brendan Jackman [this message]
2025-10-25 9:57 ` Borislav Petkov
2025-09-24 14:59 ` [PATCH 02/21] x86/mm/asi: add X86_FEATURE_ASI and asi= Brendan Jackman
2025-10-25 10:06 ` Borislav Petkov
2025-10-26 22:24 ` Brendan Jackman
2025-11-10 11:26 ` Borislav Petkov
2025-11-10 12:15 ` Brendan Jackman
2025-09-24 14:59 ` [PATCH 03/21] x86/mm: factor out phys_pgd_init() Brendan Jackman
2025-09-27 19:29 ` kernel test robot
2025-10-01 12:26 ` Brendan Jackman
2025-10-25 11:48 ` Borislav Petkov
2025-10-26 22:29 ` Brendan Jackman
2025-11-10 11:38 ` Borislav Petkov
2025-11-10 12:36 ` Brendan Jackman
2025-09-24 14:59 ` [PATCH 04/21] x86/mm/asi: set up asi_nonsensitive_pgd Brendan Jackman
2025-10-01 20:28 ` Dave Hansen
2025-10-02 14:05 ` Brendan Jackman
2025-10-02 16:14 ` Dave Hansen
2025-10-02 17:19 ` Brendan Jackman
2025-11-12 19:39 ` Dave Hansen
2025-11-11 14:55 ` Borislav Petkov
2025-11-11 17:53 ` Brendan Jackman
2025-09-24 14:59 ` [PATCH 05/21] x86/mm/pat: mirror direct map changes to ASI Brendan Jackman
2025-09-25 13:36 ` kernel test robot
2025-10-01 20:50 ` Dave Hansen
2025-10-02 14:31 ` Brendan Jackman
2025-10-02 16:40 ` Dave Hansen
2025-10-02 17:08 ` Brendan Jackman
2025-09-24 14:59 ` [PATCH 06/21] mm/page_alloc: add __GFP_SENSITIVE and always set it Brendan Jackman
2025-10-01 21:18 ` Dave Hansen
2025-10-02 14:34 ` Brendan Jackman
2025-09-24 14:59 ` [PATCH 07/21] mm: introduce for_each_free_list() Brendan Jackman
2025-09-24 14:59 ` [PATCH 08/21] mm: rejig pageblock mask definitions Brendan Jackman
2025-09-24 14:59 ` [PATCH 09/21] mm/page_alloc: Invert is_check_pages_enabled() check Brendan Jackman
2025-09-24 14:59 ` [PATCH 10/21] mm/page_alloc: remove ifdefs from pindex helpers Brendan Jackman
2025-09-24 14:59 ` [PATCH 11/21] mm: introduce freetype_t Brendan Jackman
2025-09-25 13:15 ` kernel test robot
2025-10-01 21:20 ` Dave Hansen
2025-10-02 14:39 ` Brendan Jackman
2025-09-24 14:59 ` [PATCH 12/21] mm/asi: encode sensitivity in freetypes and pageblocks Brendan Jackman
2025-09-24 14:59 ` [PATCH 13/21] mm/page_alloc_test: unit test pindex helpers Brendan Jackman
2025-09-25 13:36 ` kernel test robot
2025-09-24 14:59 ` [PATCH 14/21] x86/mm/pat: introduce cpa_fault option Brendan Jackman
2025-09-24 14:59 ` [PATCH 15/21] mm/page_alloc: rename ALLOC_NON_BLOCK back to _HARDER Brendan Jackman
2025-09-24 14:59 ` [PATCH 16/21] mm/page_alloc: introduce ALLOC_NOBLOCK Brendan Jackman
2025-09-24 14:59 ` [PATCH 17/21] mm/slub: defer application of gfp_allowed_mask Brendan Jackman
2025-09-24 14:59 ` [PATCH 18/21] mm/asi: support changing pageblock sensitivity Brendan Jackman
2025-09-24 14:59 ` [PATCH 19/21] mm/asi: bad_page() when ASI mappings are wrong Brendan Jackman
2025-09-24 14:59 ` [PATCH 20/21] x86/mm/asi: don't use global pages when ASI enabled Brendan Jackman
2025-09-24 14:59 ` [PATCH 21/21] mm: asi_test: smoke test for [non]sensitive page allocs Brendan Jackman
2025-09-25 17:51 ` [PATCH 00/21] mm: ASI direct map management Brendan Jackman
2025-09-30 19:51 ` Konrad Rzeszutek Wilk
2025-10-01 7:12 ` Brendan Jackman
2025-10-01 19:54 ` Dave Hansen
2025-10-01 20:22 ` Yosry Ahmed
2025-10-01 20:30 ` Dave Hansen
2025-10-02 11:05 ` Brendan Jackman
2025-10-01 20:59 ` Dave Hansen
2025-10-02 7:34 ` David Hildenbrand
2025-10-02 11:23 ` Brendan Jackman
2025-10-02 17:01 ` Dave Hansen
2025-10-02 19:19 ` Brendan Jackman
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