Re: [PATCH v4 00/21] Track shared pages at EL2 in protected mode

From: Marc Zyngier
Date: Wed Aug 11 2021 - 07:25:42 EST


On Mon, 9 Aug 2021 16:24:27 +0100, Quentin Perret wrote:
> This is v4 of the patch series previously posted here:
>
> https://lore.kernel.org/lkml/20210729132818.4091769-1-qperret@xxxxxxxxxx/
>
> This series aims to improve how the nVHE hypervisor tracks ownership of
> memory pages when running in protected mode ("kvm-arm.mode=protected" on
> the kernel command line).
>
> [...]

Applied to next, thanks!

[01/21] KVM: arm64: Add hyp_spin_is_locked() for basic locking assertions at EL2
commit: d21292f13f1f0721d60e8122e2db46bea8cf6950
[02/21] KVM: arm64: Introduce hyp_assert_lock_held()
commit: 8e049e0daf23aa380c264e5e15e4c64ea5497ed7
[03/21] KVM: arm64: Provide the host_stage2_try() helper macro
commit: 1bac49d490cbc813f407a5c9806e464bf4a300c9
[05/21] KVM: arm64: Expose page-table helpers
commit: 51add457733bbc4a442fc280d73d14bfe262e4a0
[06/21] KVM: arm64: Optimize host memory aborts
commit: c4f0935e4d957bfcea25ad76860445660a60f3fd
[07/21] KVM: arm64: Rename KVM_PTE_LEAF_ATTR_S2_IGNORED
commit: 178cac08d588e7406a09351a992f57892d8d9cc9
[08/21] KVM: arm64: Don't overwrite software bits with owner id
commit: 8a0282c68121e53ab17413283cfed408a47e1a2a
[09/21] KVM: arm64: Tolerate re-creating hyp mappings to set software bits
commit: b53846c5f279cb5329b82f19a7d313f02cb9d21c
[10/21] KVM: arm64: Enable forcing page-level stage-2 mappings
commit: 5651311941105ca077d3ab74dd4a92e646ecf7fb
[11/21] KVM: arm64: Allow populating software bits
commit: 4505e9b624cefafa4b75d8a28e72f32076c33375
[12/21] KVM: arm64: Add helpers to tag shared pages in SW bits
commit: ec250a67ea8db6209918a389554cf3aec0395b1f
[13/21] KVM: arm64: Expose host stage-2 manipulation helpers
commit: 39257da0e04e5cdb1e4a3ca715dc3d949fe8b059
[14/21] KVM: arm64: Expose pkvm_hyp_id
commit: 2d77e238badb022adb364332b7d6a1d627f77145
[15/21] KVM: arm64: Introduce addr_is_memory()
commit: e009dce1292c37cf8ee7c33e0887ad3c642f980f
[16/21] KVM: arm64: Enable retrieving protections attributes of PTEs
commit: 9024b3d0069ab4b8ef70cf55f0ee09e61f3a0747
[17/21] KVM: arm64: Mark host bss and rodata section as shared
commit: 2c50166c62ba7f3c23c1bbdbb9324db462ddc97b
[18/21] KVM: arm64: Remove __pkvm_mark_hyp
commit: ad0e0139a8e163245d8f44ab4f6ec3bc9b08034d
[19/21] KVM: arm64: Refactor protected nVHE stage-1 locking
commit: f9370010e92638f66473baf342e19de940403362
[20/21] KVM: arm64: Restrict EL2 stage-1 changes in protected mode
commit: 66c57edd3bc79e3527daaae8123f72ecd1e3fa25
[21/21] KVM: arm64: Make __pkvm_create_mappings static
commit: 64a80fb766f9a91e26930bfc56d8e7c12425df12

Note that patch #4 has been used as the base for this series,
and is already part of the mapping level rework.

Cheers,

M.
--
Without deviation from the norm, progress is not possible.