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Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST
From: |
Jason Gunthorpe |
Subject: |
Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST |
Date: |
Tue, 23 Nov 2021 13:17:23 -0400 |
On Tue, Nov 23, 2021 at 10:06:02AM +0100, Paolo Bonzini wrote:
> I think it's great that memfd hooks are usable by more than one subsystem,
> OTOH it's fair that whoever needs it does the work---and VFIO does not need
> it for confidential VMs, yet, so it should be fine for now to have a single
> user.
I think adding a new interface to a core kernel subsystem should come
with a greater requirement to work out something generally useful and
not be overly wedded to a single use case (eg F_SEAL_GUEST)
Especially if something like 'single user' is not just a small
implementation artifact but a key design tennant of the whole eventual
solution.
Jason
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, (continued)
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, David Hildenbrand, 2021/11/22
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, Sean Christopherson, 2021/11/19
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, Jason Gunthorpe, 2021/11/19
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, Sean Christopherson, 2021/11/19
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, Jason Gunthorpe, 2021/11/19
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, Sean Christopherson, 2021/11/19
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, Jason Gunthorpe, 2021/11/20
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, Paolo Bonzini, 2021/11/23
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, Chao Peng, 2021/11/23
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, David Hildenbrand, 2021/11/23
- Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST,
Jason Gunthorpe <=
Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST, Paolo Bonzini, 2021/11/23
[RFC v2 PATCH 02/13] KVM: Add KVM_EXIT_MEMORY_ERROR exit, Chao Peng, 2021/11/19
[RFC v2 PATCH 03/13] KVM: Extend kvm_userspace_memory_region to support fd based memslot, Chao Peng, 2021/11/19
[RFC v2 PATCH 04/13] KVM: Add fd-based memslot data structure and utils, Chao Peng, 2021/11/19
[RFC v2 PATCH 05/13] KVM: Implement fd-based memory using new memfd interfaces, Chao Peng, 2021/11/19
[RFC v2 PATCH 06/13] KVM: Register/unregister memfd backed memslot, Chao Peng, 2021/11/19
[RFC v2 PATCH 07/13] KVM: Handle page fault for fd based memslot, Chao Peng, 2021/11/19