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From: Paolo Bonzini <pbonzini@redhat.com>
To: Sean Christopherson <seanjc@google.com>,
	Marc Zyngier <maz@kernel.org>,
	Oliver Upton <oliver.upton@linux.dev>,
	Huacai Chen <chenhuacai@kernel.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Anup Patel <anup@brainfault.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Christian Brauner <brauner@kernel.org>,
	"Matthew Wilcox (Oracle)" <willy@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.linux.dev, linux-mips@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org,
	linux-riscv@lists.infradead.org, linux-fsdevel@vger.kernel.org,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	"Xiaoyao Li" <xiaoyao.li@intel.com>,
	"Xu Yilun" <yilun.xu@intel.com>,
	"Chao Peng" <chao.p.peng@linux.intel.com>,
	"Fuad Tabba" <tabba@google.com>,
	"Jarkko Sakkinen" <jarkko@kernel.org>,
	"Anish Moorthy" <amoorthy@google.com>,
	"David Matlack" <dmatlack@google.com>,
	"Yu Zhang" <yu.c.zhang@linux.intel.com>,
	"Isaku Yamahata" <isaku.yamahata@intel.com>,
	"Mickaël Salaün" <mic@digikod.net>,
	"Vlastimil Babka" <vbabka@suse.cz>,
	"Vishal Annapurve" <vannapurve@google.com>,
	"Ackerley Tng" <ackerleytng@google.com>,
	"Maciej Szmigiero" <mail@maciej.szmigiero.name>,
	"David Hildenbrand" <david@redhat.com>,
	"Quentin Perret" <qperret@google.com>,
	"Michael Roth" <michael.roth@amd.com>,
	Wang <wei.w.wang@intel.com>,
	"Liam Merwick" <liam.merwick@oracle.com>,
	"Isaku Yamahata" <isaku.yamahata@gmail.com>,
	"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Subject: Re: [PATCH v13 00/35] KVM: guest_memfd() and per-page attributes
Date: Mon, 30 Oct 2023 18:39:25 +0100	[thread overview]
Message-ID: <80471c15-a37e-4129-8101-d30b8f73cb9f@redhat.com> (raw)
In-Reply-To: <20231027182217.3615211-1-seanjc@google.com>

On 10/27/23 20:21, Sean Christopherson wrote:
> Non-KVM people, please take a gander at two small-ish patches buried in the
> middle of this series:
> 
>    fs: Export anon_inode_getfile_secure() for use by KVM
>    mm: Add AS_UNMOVABLE to mark mapping as completely unmovable
> 
> Our plan/hope is to take this through the KVM tree for 6.8, reviews (and acks!)
> would be much appreciated.  Note, adding AS_UNMOVABLE isn't strictly required as
> it's "just" an optimization, but we'd prefer to have it in place straightaway.

Reporting what I wrote in the other thread, for wider distribution:

I'm going to wait a couple days more for reviews to come in, post a v14
myself, and apply the series to kvm/next as soon as Linus merges the 6.7
changes.  The series will be based on the 6.7 tags/for-linus, and when
6.7-rc1 comes up, I'll do this to straighten the history:

	git checkout kvm/next
	git tag -s -f kvm-gmem HEAD
	git reset --hard v6.7-rc1
	git merge tags/kvm-gmem
	# fix conflict with Christian Brauner's VFS series
	git commit
	git push kvm

6.8 is not going to be out for four months, and I'm pretty sure that
anything that would be discovered within "a few weeks" can also be
applied on top, and the heaviness of a 35-patch series will outweigh any
imperfections by a long margin.

(Full disclosure: this is _also_ because I want to apply this series to
the RHEL kernel, and Red Hat has a high level of disdain for
non-upstream patches.  But it's mostly because I want all dependencies
to be able to move on and be developed on top of stock kvm/next).

Paolo


      parent reply	other threads:[~2023-10-30 17:39 UTC|newest]

Thread overview: 148+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-27 18:21 [PATCH v13 00/35] KVM: guest_memfd() and per-page attributes Sean Christopherson
2023-10-27 18:21 ` [PATCH v13 01/35] KVM: Tweak kvm_hva_range and hva_handler_t to allow reusing for gfn ranges Sean Christopherson
2023-11-01 12:46   ` Fuad Tabba
2023-10-27 18:21 ` [PATCH v13 02/35] KVM: Assert that mmu_invalidate_in_progress *never* goes negative Sean Christopherson
2023-10-30 16:27   ` Paolo Bonzini
2023-11-01 12:46   ` Fuad Tabba
2023-10-27 18:21 ` [PATCH v13 03/35] KVM: Use gfn instead of hva for mmu_notifier_retry Sean Christopherson
2023-10-30 16:30   ` Paolo Bonzini
2023-10-30 16:53   ` David Matlack
2023-10-30 17:00     ` Paolo Bonzini
2023-10-30 18:21       ` David Matlack
2023-10-30 18:19     ` David Matlack
2023-11-01 15:31   ` Xu Yilun
2023-10-27 18:21 ` [PATCH v13 04/35] KVM: WARN if there are dangling MMU invalidations at VM destruction Sean Christopherson
2023-10-30 16:32   ` Paolo Bonzini
2023-11-01 12:50   ` Fuad Tabba
2023-10-27 18:21 ` [PATCH v13 05/35] KVM: PPC: Drop dead code related to KVM_ARCH_WANT_MMU_NOTIFIER Sean Christopherson
2023-10-30 16:34   ` Paolo Bonzini
2023-11-01 12:51   ` Fuad Tabba
2023-10-27 18:21 ` [PATCH v13 06/35] KVM: PPC: Return '1' unconditionally for KVM_CAP_SYNC_MMU Sean Christopherson
2023-10-27 18:21 ` [PATCH v13 07/35] KVM: Convert KVM_ARCH_WANT_MMU_NOTIFIER to CONFIG_KVM_GENERIC_MMU_NOTIFIER Sean Christopherson
2023-10-30 16:37   ` Paolo Bonzini
2023-11-01 12:54   ` Fuad Tabba
2023-10-27 18:21 ` [PATCH v13 08/35] KVM: Introduce KVM_SET_USER_MEMORY_REGION2 Sean Christopherson
2023-10-30 16:41   ` Paolo Bonzini
2023-10-30 20:25     ` Sean Christopherson
2023-10-30 22:12       ` Sean Christopherson
2023-10-30 23:22       ` Paolo Bonzini
2023-10-31  0:18         ` Sean Christopherson
2023-10-31  2:26   ` Xiaoyao Li
2023-10-31 14:04     ` Sean Christopherson
2023-11-01 14:19   ` Fuad Tabba
2023-10-27 18:21 ` [PATCH v13 09/35] KVM: Add KVM_EXIT_MEMORY_FAULT exit to report faults to userspace Sean Christopherson
2023-10-30 17:22   ` Paolo Bonzini
2023-11-01  7:30   ` Binbin Wu
2023-11-01 10:52   ` Huang, Kai
2023-11-01 17:36     ` Sean Christopherson
2023-11-02  2:19       ` Xiaoyao Li
2023-11-02 15:51         ` Sean Christopherson
2023-11-02  3:17       ` Huang, Kai
2023-11-02  9:35         ` Huang, Kai
2023-11-02 11:03           ` Paolo Bonzini
2023-11-02 15:44             ` Sean Christopherson
2023-11-02 18:35               ` Huang, Kai
2023-11-02 15:56         ` Sean Christopherson
2023-11-02 11:01       ` Paolo Bonzini
2023-11-03  4:09   ` Xu Yilun
2023-10-27 18:21 ` [PATCH v13 10/35] KVM: Add a dedicated mmu_notifier flag for reclaiming freed memory Sean Christopherson
2023-10-30 17:11   ` Paolo Bonzini
2023-11-02 13:55   ` Fuad Tabba
2023-10-27 18:21 ` [PATCH v13 11/35] KVM: Drop .on_unlock() mmu_notifier hook Sean Christopherson
2023-10-30 17:18   ` Paolo Bonzini
2023-11-02 13:55   ` Fuad Tabba
2023-10-27 18:21 ` [PATCH v13 12/35] KVM: Prepare for handling only shared mappings in mmu_notifier events Sean Christopherson
2023-10-30 17:21   ` Paolo Bonzini
2023-10-30 22:07     ` Sean Christopherson
2023-11-02  5:59   ` Binbin Wu
2023-11-02 11:14     ` Paolo Bonzini
2023-11-02 14:01   ` Fuad Tabba
2023-11-02 14:41     ` Sean Christopherson
2023-11-02 14:57       ` Fuad Tabba
2023-10-27 18:21 ` [PATCH v13 13/35] KVM: Introduce per-page memory attributes Sean Christopherson
2023-10-30  8:11   ` Chao Gao
2023-10-30 16:10     ` Sean Christopherson
2023-10-30 22:05       ` Sean Christopherson
2023-10-31 16:43   ` David Matlack
2023-11-02  3:01   ` Huang, Kai
2023-11-02 10:32     ` Paolo Bonzini
2023-11-02 10:55       ` Huang, Kai
2023-10-27 18:21 ` [PATCH v13 14/35] mm: Add AS_UNMOVABLE to mark mapping as completely unmovable Sean Christopherson
2023-10-30 17:24   ` Paolo Bonzini
2023-10-27 18:21 ` [PATCH v13 15/35] fs: Export anon_inode_getfile_secure() for use by KVM Sean Christopherson
2023-10-30 17:30   ` Paolo Bonzini
2023-11-02 16:24   ` Christian Brauner
2023-11-03 10:40     ` Paolo Bonzini
2023-10-27 18:21 ` [PATCH v13 16/35] KVM: Add KVM_CREATE_GUEST_MEMFD ioctl() for guest-specific backing memory Sean Christopherson
2023-10-31  2:27   ` Xiaoyao Li
2023-10-31  6:30   ` Chao Gao
2023-10-31 14:10     ` Sean Christopherson
2023-10-31 15:05   ` Fuad Tabba
2023-10-31 22:13     ` Sean Christopherson
2023-10-31 22:18       ` Paolo Bonzini
2023-11-01 10:51       ` Fuad Tabba
2023-11-01 21:55         ` Sean Christopherson
2023-11-02 13:52           ` Fuad Tabba
2023-11-03 23:17             ` Sean Christopherson
2023-10-31 18:24   ` David Matlack
2023-10-31 21:36     ` Sean Christopherson
2023-10-31 22:39       ` David Matlack
2023-11-02 15:48         ` Paolo Bonzini
2023-11-02 16:03           ` Sean Christopherson
2023-11-02 16:28             ` David Matlack
2023-11-02 17:37               ` Sean Christopherson
2023-11-03  9:42   ` Fuad Tabba
2023-11-04 10:26   ` Xu Yilun
2023-11-06 15:43     ` Sean Christopherson
2023-10-27 18:21 ` [PATCH v13 17/35] KVM: Add transparent hugepage support for dedicated guest memory Sean Christopherson
2023-10-31  8:35   ` Xiaoyao Li
2023-10-31 14:16     ` Sean Christopherson
2023-11-01  7:25       ` Xiaoyao Li
2023-11-01 13:41         ` Sean Christopherson
2023-11-01 13:49           ` Paolo Bonzini
2023-11-01 16:36             ` Sean Christopherson
2023-11-01 22:28               ` Paolo Bonzini
2023-11-01 22:34                 ` Sean Christopherson
2023-11-01 23:17                   ` Paolo Bonzini
2023-11-02 15:38                     ` Sean Christopherson
2023-11-02 15:46                       ` Paolo Bonzini
2023-11-27 11:13                         ` Vlastimil Babka
2023-11-29 22:40                           ` Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 18/35] KVM: x86: "Reset" vcpu->run->exit_reason early in KVM_RUN Sean Christopherson
2023-10-30 17:31   ` Paolo Bonzini
2023-11-02 14:16   ` Fuad Tabba
2023-10-27 18:22 ` [PATCH v13 19/35] KVM: x86: Disallow hugepages when memory attributes are mixed Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 20/35] KVM: x86/mmu: Handle page fault for private memory Sean Christopherson
2023-11-02 14:34   ` Fuad Tabba
2023-11-05 13:02   ` Xu Yilun
2023-11-05 16:19     ` Paolo Bonzini
2023-11-06 13:29       ` Xu Yilun
2023-11-06 15:56         ` Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 21/35] KVM: Drop superfluous __KVM_VCPU_MULTIPLE_ADDRESS_SPACE macro Sean Christopherson
2023-11-02 14:35   ` Fuad Tabba
2023-10-27 18:22 ` [PATCH v13 22/35] KVM: Allow arch code to track number of memslot address spaces per VM Sean Christopherson
2023-10-30 17:34   ` Paolo Bonzini
2023-11-02 14:52   ` Fuad Tabba
2023-10-27 18:22 ` [PATCH v13 23/35] KVM: x86: Add support for "protected VMs" that can utilize private memory Sean Christopherson
2023-10-30 17:36   ` Paolo Bonzini
2023-11-06 11:00   ` Fuad Tabba
2023-11-06 11:03     ` Paolo Bonzini
2023-10-27 18:22 ` [PATCH v13 24/35] KVM: selftests: Drop unused kvm_userspace_memory_region_find() helper Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 25/35] KVM: selftests: Convert lib's mem regions to KVM_SET_USER_MEMORY_REGION2 Sean Christopherson
2024-04-25 14:12   ` Dan Carpenter
2024-04-25 14:45     ` Shuah Khan
2024-04-25 15:09       ` Sean Christopherson
2024-04-25 16:22         ` Shuah Khan
2024-04-26  7:33         ` Jarkko Sakkinen
2023-10-27 18:22 ` [PATCH v13 26/35] KVM: selftests: Add support for creating private memslots Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 27/35] KVM: selftests: Add helpers to convert guest memory b/w private and shared Sean Christopherson
2023-11-06 11:26   ` Fuad Tabba
2023-10-27 18:22 ` [PATCH v13 28/35] KVM: selftests: Add helpers to do KVM_HC_MAP_GPA_RANGE hypercalls (x86) Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 29/35] KVM: selftests: Introduce VM "shape" to allow tests to specify the VM type Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 30/35] KVM: selftests: Add GUEST_SYNC[1-6] macros for synchronizing more data Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 31/35] KVM: selftests: Add x86-only selftest for private memory conversions Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 32/35] KVM: selftests: Add KVM_SET_USER_MEMORY_REGION2 helper Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 33/35] KVM: selftests: Expand set_memory_region_test to validate guest_memfd() Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 34/35] KVM: selftests: Add basic selftest for guest_memfd() Sean Christopherson
2023-10-27 18:22 ` [PATCH v13 35/35] KVM: selftests: Test KVM exit behavior for private memory/access Sean Christopherson
2023-10-30 17:39 ` Paolo Bonzini [this message]

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