From: Borislav Petkov <bp@alien8.de>
To: Brendan Jackman <jackmanb@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>,
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 <yosry.ahmed@linux.dev>
Subject: Re: [PATCH 05/21] x86/mm/pat: mirror direct map changes to ASI
Date: Tue, 20 Jan 2026 17:37:28 +0100 [thread overview]
Message-ID: <20260120163728.GDaW-vSLGY1P_E0DqS@fat_crate.local> (raw)
In-Reply-To: <DD80374YZEWM.1L31D2VUKK80C@google.com>
On Thu, Oct 02, 2025 at 05:08:59PM +0000, Brendan Jackman wrote:
> OK, then it probably just sounds wrong to me because I'm steeped in the
> current jargon. For v2 I'll try just dropping "[un]restricted".
So AFAIU, we have two address spaces - the full one - which has *everything*
mapped in and the limited one, with things removed from it. Right?
So calling the unrestricted "the full address space" makes sense to me. I.e.,
it has *everything* in it.
And then there's the subset of the full address space which has holes in it.
Looking at Merriam Webster, it suggests those antonyms to "complete":
partial, incomplete, reduced, abbreviated, diminished.
Yahaa, they all make sense.
"partial address space" sounds good to me. "Reduced" even better. So having
the full and the reduced address space would make the nomenclature very easy,
IMO.
Thoughts?
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2026-01-20 16:38 UTC|newest]
Thread overview: 73+ 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
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
2026-01-20 16:37 ` Borislav Petkov [this message]
2026-01-21 9:45 ` Brendan Jackman
2026-01-21 11:27 ` Borislav Petkov
2026-01-21 11:49 ` Brendan Jackman
2026-01-21 12:03 ` Borislav Petkov
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
2026-01-28 15:38 ` Borislav Petkov
2026-01-28 15:57 ` Brendan Jackman
2026-01-28 16:29 ` Borislav Petkov
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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