linux-kernel - Re: [RFC PATCH v2 00/51] 1G page support for guest

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <682799177f074_345d2c29482@iweiny-mobl.notmuch>
Date: Fri, 16 May 2025 14:59:19 -0500
From: Ira Weiny <ira.weiny@...el.com>
To: Ira Weiny <ira.weiny@...el.com>, Ackerley Tng <ackerleytng@...gle.com>,
	<kvm@...r.kernel.org>, <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
	<x86@...nel.org>, <linux-fsdevel@...r.kernel.org>, <afranji@...gle.com>
CC: <ackerleytng@...gle.com>, <aik@....com>, <ajones@...tanamicro.com>,
	<akpm@...ux-foundation.org>, <amoorthy@...gle.com>,
	<anthony.yznaga@...cle.com>, <anup@...infault.org>, <aou@...s.berkeley.edu>,
	<bfoster@...hat.com>, <binbin.wu@...ux.intel.com>, <brauner@...nel.org>,
	<catalin.marinas@....com>, <chao.p.peng@...el.com>, <chenhuacai@...nel.org>,
	<dave.hansen@...el.com>, <david@...hat.com>, <dmatlack@...gle.com>,
	<dwmw@...zon.co.uk>, <erdemaktas@...gle.com>, <fan.du@...el.com>,
	<fvdl@...gle.com>, <graf@...zon.com>, <haibo1.xu@...el.com>,
	<hch@...radead.org>, <hughd@...gle.com>, <ira.weiny@...el.com>,
	<isaku.yamahata@...el.com>, <jack@...e.cz>, <james.morse@....com>,
	<jarkko@...nel.org>, <jgg@...pe.ca>, <jgowans@...zon.com>,
	<jhubbard@...dia.com>, <jroedel@...e.de>, <jthoughton@...gle.com>,
	<jun.miao@...el.com>, <kai.huang@...el.com>, <keirf@...gle.com>,
	<kent.overstreet@...ux.dev>, <kirill.shutemov@...el.com>,
	<liam.merwick@...cle.com>, <maciej.wieczor-retman@...el.com>,
	<mail@...iej.szmigiero.name>, <maz@...nel.org>, <mic@...ikod.net>,
	<michael.roth@....com>, <mpe@...erman.id.au>, <muchun.song@...ux.dev>,
	<nikunj@....com>, <nsaenz@...zon.es>, <oliver.upton@...ux.dev>,
	<palmer@...belt.com>, <pankaj.gupta@....com>, <paul.walmsley@...ive.com>,
	<pbonzini@...hat.com>, <pdurrant@...zon.co.uk>, <peterx@...hat.com>,
	<pgonda@...gle.com>, <pvorel@...e.cz>, <qperret@...gle.com>,
	<quic_cvanscha@...cinc.com>, <quic_eberman@...cinc.com>,
	<quic_mnalajal@...cinc.com>, <quic_pderrin@...cinc.com>,
	<quic_pheragu@...cinc.com>, <quic_svaddagi@...cinc.com>,
	<quic_tsoni@...cinc.com>, <richard.weiyang@...il.com>,
	<rick.p.edgecombe@...el.com>, <rientjes@...gle.com>, <roypat@...zon.co.uk>,
	<rppt@...nel.org>, <seanjc@...gle.com>, <shuah@...nel.org>,
	<steven.price@....com>, <steven.sistare@...cle.com>,
	<suzuki.poulose@....com>, <tabba@...gle.com>, <thomas.lendacky@....com>,
	<usama.arif@...edance.com>, <vannapurve@...gle.com>, <vbabka@...e.cz>,
	<viro@...iv.linux.org.uk>, <vkuznets@...hat.com>, <wei.w.wang@...el.com>,
	<will@...nel.org>, <willy@...radead.org>, <xiaoyao.li@...el.com>,
	<yan.y.zhao@...el.com>, <yilun.xu@...el.com>, <yuzenghui@...wei.com>,
	<zhiquan1.li@...el.com>
Subject: Re: [RFC PATCH v2 00/51] 1G page support for guest_memfd

Ira Weiny wrote:
> Ackerley Tng wrote:
> > Hello,
> > 
> > This patchset builds upon discussion at LPC 2024 and many guest_memfd
> > upstream calls to provide 1G page support for guest_memfd by taking
> > pages from HugeTLB.
> > 
> > This patchset is based on Linux v6.15-rc6, and requires the mmap support
> > for guest_memfd patchset (Thanks Fuad!) [1].
> 
> Trying to manage dependencies I find that Ryan's just released series[1]
> is required to build this set.
> 
> [1] https://lore.kernel.org/all/cover.1747368092.git.afranji@google.com/
> 
> Specifically this patch:
> 	https://lore.kernel.org/all/1f42c32fc18d973b8ec97c8be8b7cd921912d42a.1747368092.git.afranji@google.com/
> 
> 	defines
> 
> 	alloc_anon_secure_inode()

Perhaps Ryan's set is not required?  Just that patch?

It looks like Ryan's 2/13 is the same as your 1/51 patch?

https://lore.kernel.org/all/754b4898c3362050071f6dd09deb24f3c92a41c3.1747368092.git.afranji@google.com/

I'll pull 1/13 and see where I get.

Ira

> 
> Am I wrong in that?
> 
> > 
> > For ease of testing, this series is also available, stitched together,
> > at https://github.com/googleprodkernel/linux-cc/tree/gmem-1g-page-support-rfc-v2
> > 
> 
> I went digging in your git tree and then found Ryan's set.  So thanks for
> the git tree.  :-D
> 
> However, it seems this add another dependency which should be managed in
> David's email of dependencies?
> 
> Ira
>