KVM: arm64: nv: Unmap/flush shadow stage 2 page tables

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Unmap/flush shadow stage 2 page tables for the nested VMs as well as the
stage 2 page table for the guest hypervisor.

Note: A bunch of the code in mmu.c relating to MMU notifiers is
currently dealt with in an extremely abrupt way, for example by clearing
out an entire shadow stage-2 table. This will be handled in a more
efficient way using the reverse mapping feature in a later version of
the patch series.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Jintack Lim <jintack.lim@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240614144552.2773592-5-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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Christoffer Dall 2024-06-14 15:45:40 +01:00 • committed by Oliver Upton

parent fd276e71d1

commit ec14c27240

4 changed files with 70 additions and 5 deletions

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2

arch/arm64/include/asm/kvm_mmu.h

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3

arch/arm64/include/asm/kvm_nested.h

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28

arch/arm64/kvm/mmu.c

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arch/arm64/kvm/nested.c

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