From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
Sean Christopherson <seanjc@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Joerg Roedel <jroedel@suse.de>, Ard Biesheuvel <ardb@kernel.org>,
Andi Kleen <ak@linux.intel.com>,
Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@linux.intel.com>,
David Rientjes <rientjes@google.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Dario Faggioli <dfaggioli@suse.com>,
Dave Hansen <dave.hansen@intel.com>,
Mike Rapoport <rppt@kernel.org>,
David Hildenbrand <david@redhat.com>,
Mel Gorman <mgorman@techsingularity.net>,
marcelo.cerri@canonical.com, tim.gardner@canonical.com,
khalid.elmously@canonical.com, philip.cox@canonical.com,
aarcange@redhat.com, peterx@redhat.com, x86@kernel.org,
linux-mm@kvack.org, linux-coco@lists.linux.dev,
linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCHv9 04/14] mm/page_alloc: Add sysfs handle to accept accept_memory
Date: Mon, 3 Apr 2023 17:41:45 +0300 [thread overview]
Message-ID: <20230403144145.wss3nudvyyd4xtih@box.shutemov.name> (raw)
In-Reply-To: <4c319a60-c1fb-fe43-65be-9729f0261dab@suse.cz>
On Mon, Apr 03, 2023 at 03:43:32PM +0200, Vlastimil Babka wrote:
> On 3/30/23 13:49, Kirill A. Shutemov wrote:
> > Write amount of memory to accept into the new sysfs handle
> > /sys/kernel/mm/page_alloc/accept_memory.
> >
> > Write 'all' to the handle to accept all memory in the system.
> >
> > It can be used to implement background memory accepting from userspace.
> > It is also useful for debugging.
> >
> > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
>
> Somewhat similarly to patch 3, I'd think we don't need this patch in
> mainline without clear usecases first, although it's good to post for
> testing/debugging.
I thought about it as a way to implement #3 from 02/14 commit message:
users who want to accept all memory in background can use the mechanism.
But, again, we can leave out until later.
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2023-04-03 14:41 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-30 11:49 [PATCHv9 00/14] mm, x86/cc: Implement support for unaccepted memory Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 01/14] x86/boot: Centralize __pa()/__va() definitions Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 02/14] mm: Add support for unaccepted memory Kirill A. Shutemov
2023-04-03 9:26 ` Vlastimil Babka
2023-04-03 10:02 ` Kirill A. Shutemov
2023-04-03 13:07 ` Vlastimil Babka
2023-03-30 11:49 ` [PATCHv9 03/14] mm/page_alloc: Fake " Kirill A. Shutemov
2023-04-03 13:39 ` Vlastimil Babka
2023-04-03 14:39 ` Kirill A. Shutemov
2023-04-03 15:50 ` Kirill A. Shutemov
2023-04-14 10:19 ` Kirill A. Shutemov
2023-04-03 14:43 ` David Hildenbrand
2023-04-03 14:47 ` Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 04/14] mm/page_alloc: Add sysfs handle to accept accept_memory Kirill A. Shutemov
2023-04-03 13:43 ` Vlastimil Babka
2023-04-03 14:41 ` Kirill A. Shutemov [this message]
2023-03-30 11:49 ` [PATCHv9 05/14] efi/x86: Get full memory map in allocate_e820() Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 06/14] x86/boot: Add infrastructure required for unaccepted memory support Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 07/14] efi/x86: Implement support for unaccepted memory Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 08/14] x86/boot/compressed: Handle " Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 09/14] x86/mm: Reserve unaccepted memory bitmap Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 10/14] x86/mm: Provide helpers for unaccepted memory Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 11/14] x86/mm: Avoid load_unaligned_zeropad() stepping into " Kirill A. Shutemov
2023-04-03 13:28 ` Vlastimil Babka
2023-04-03 14:42 ` Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 12/14] x86/tdx: Make _tdx_hypercall() and __tdx_module_call() available in boot stub Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 13/14] x86/tdx: Refactor try_accept_one() Kirill A. Shutemov
2023-03-30 11:49 ` [PATCHv9 14/14] x86/tdx: Add unaccepted memory support Kirill A. Shutemov
2023-04-03 14:42 ` [PATCHv9 00/14] mm, x86/cc: Implement support for unaccepted memory Vlastimil Babka
2023-04-16 19:19 ` Kirill A. Shutemov
2023-04-17 7:37 ` Vlastimil Babka
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