From: David Hildenbrand <david@redhat.com>
To: Shivank Garg <shivankg@amd.com>,
akpm@linux-foundation.org, willy@infradead.org,
pbonzini@redhat.com
Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
linux-coco@lists.linux.dev, chao.gao@intel.com,
seanjc@google.com, ackerleytng@google.com, vbabka@suse.cz,
bharata@amd.com, nikunj@amd.com, michael.day@amd.com,
Neeraj.Upadhyay@amd.com, thomas.lendacky@amd.com,
michael.roth@amd.com
Subject: Re: [RFC PATCH v4 2/3] mm/mempolicy: export memory policy symbols
Date: Wed, 12 Feb 2025 11:23:39 +0100 [thread overview]
Message-ID: <9392618e-32de-4a86-9e1e-bcfeefe39181@redhat.com> (raw)
In-Reply-To: <20250210063227.41125-3-shivankg@amd.com>
On 10.02.25 07:32, Shivank Garg wrote:
> Export memory policy related symbols needed by the KVM guest-memfd to
> implement NUMA policy support.
>
> These symbols are required to implement per-memory region NUMA policies
> for guest memory, allowing VMMs to control guest memory placement across
> NUMA nodes.
Probably worth mentioning something like
"guest_memfd wants to implement support for NUMA policies just like
shmem already does using the shared policy infrastructure. As
guest_memfd currently resides in KVM module code, we have to export the
relevant symbols.
In the future, guest_memfd might be moved to core-mm, at which point the
symbols no longer would have to be exported. When/if that happens is
still unclear."
Acked-by: David Hildenbrand <david@redhat.com>
--
Cheers,
David / dhildenb
next prev parent reply other threads:[~2025-02-12 10:24 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-10 6:32 [RFC PATCH v4 0/3] Add NUMA mempolicy support for KVM guest-memfd Shivank Garg
2025-02-10 6:32 ` [RFC PATCH v4 1/3] mm/filemap: add mempolicy support to the filemap layer Shivank Garg
2025-02-12 10:03 ` David Hildenbrand
2025-02-13 18:27 ` Shivank Garg
2025-02-17 19:52 ` David Hildenbrand
2025-02-10 6:32 ` [RFC PATCH v4 2/3] mm/mempolicy: export memory policy symbols Shivank Garg
2025-02-12 10:23 ` David Hildenbrand [this message]
2025-02-13 18:27 ` Shivank Garg
2025-02-17 11:52 ` Vlastimil Babka
2025-02-18 15:22 ` Sean Christopherson
2025-02-19 6:45 ` Shivank Garg
2025-02-10 6:32 ` [RFC PATCH v4 3/3] KVM: guest_memfd: Enforce NUMA mempolicy using shared policy Shivank Garg
2025-02-12 10:39 ` David Hildenbrand
2025-02-13 18:27 ` Shivank Garg
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