From: Kiryl Shutsemau <kas@kernel.org>
To: "David Hildenbrand (Arm)" <david@kernel.org>
Cc: "Pratik R. Sampat" <prsampat@amd.com>,
linux-mm@kvack.org, linux-coco@lists.linux.dev, x86@kernel.org,
linux-kernel@vger.kernel.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com,
ardb@kernel.org, akpm@linux-foundation.org, osalvador@suse.de,
thomas.lendacky@amd.com, michael.roth@amd.com
Subject: Re: [PATCH v4 1/2] mm/memory_hotplug: Add support to accept memory during hot-add
Date: Fri, 6 Feb 2026 12:03:39 +0000 [thread overview]
Message-ID: <aYXYRf4lxm_iQwjE@thinkstation> (raw)
In-Reply-To: <fc60cc71-80eb-4058-8d0a-dbd19a5c10ef@kernel.org>
On Thu, Feb 05, 2026 at 06:29:08PM +0100, David Hildenbrand (Arm) wrote:
> > Ideally, we want to know on boot:
> >
> > - what memory ranges are unaccepted - we have it;
> > - what memory range can be removed or added after boot - we don't have it
>
> The SRAT describes memory ranges where we can see hotplug memory. Is that
> too late? We calculate max_possible_pfn based on that.
The cleanest way would be to declare the ranges in EFI memory map, not
SRAT. It should be doable.
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2026-02-06 12:03 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-03 17:49 [PATCH v4 0/2] SEV-SNP Unaccepted Memory Hotplug Pratik R. Sampat
2026-02-03 17:49 ` [PATCH v4 1/2] mm/memory_hotplug: Add support to accept memory during hot-add Pratik R. Sampat
2026-02-04 11:22 ` Kiryl Shutsemau
2026-02-04 19:59 ` David Hildenbrand (arm)
2026-02-05 3:50 ` Pratik R. Sampat
2026-02-05 10:51 ` Kiryl Shutsemau
2026-02-04 20:00 ` David Hildenbrand (arm)
2026-02-05 3:50 ` Pratik R. Sampat
2026-02-05 10:48 ` Kiryl Shutsemau
2026-02-05 15:48 ` David Hildenbrand (Arm)
2026-02-05 16:08 ` Kiryl Shutsemau
2026-02-05 17:29 ` David Hildenbrand (Arm)
2026-02-06 12:03 ` Kiryl Shutsemau [this message]
2026-02-16 14:45 ` Pratik R. Sampat
2026-02-03 17:49 ` [PATCH v4 2/2] x86/sev: Add support to unaccept memory after hot-remove Pratik R. Sampat
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