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Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_
From: |
Peter Xu |
Subject: |
Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE |
Date: |
Thu, 30 Nov 2023 12:46:48 -0500 |
On Thu, Nov 30, 2023 at 05:54:26PM +0100, David Hildenbrand wrote:
> But likely we want THP support here. Because for hugetlb, one would actually
> have to instruct the kernel which size to use, like we do for memfd with
> hugetlb.
I doubt it, as VM can still leverage larger sizes if possible?
IIUC one of the major challenges of gmem hugepage is how to support
security features while reusing existing mm infrastructures as much as
possible.
Thanks,
--
Peter Xu
- Re: [PATCH v3 02/70] RAMBlock: Add support of KVM private guest memfd, (continued)
[PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, Xiaoyao Li, 2023/11/15
- Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, David Hildenbrand, 2023/11/15
- Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, Xiaoyao Li, 2023/11/15
- Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, David Hildenbrand, 2023/11/20
- Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, Xiaoyao Li, 2023/11/30
- Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, David Hildenbrand, 2023/11/30
- Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, Sean Christopherson, 2023/11/30
- Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, David Hildenbrand, 2023/11/30
- Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE,
Peter Xu <=
- Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, David Hildenbrand, 2023/11/30
- Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, David Hildenbrand, 2023/11/30
Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, Daniel P . Berrangé, 2023/11/30
Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, David Hildenbrand, 2023/11/30
Re: [PATCH v3 03/70] RAMBlock/guest_memfd: Enable KVM_GUEST_MEMFD_ALLOW_HUGEPAGE, Xiaoyao Li, 2023/11/30
[PATCH v3 04/70] HostMem: Add mechanism to opt in kvm guest memfd via MachineState, Xiaoyao Li, 2023/11/15