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KVM: arm64: Introduce __pkvm_host_unshare_guest()
authorQuentin Perret <qperret@google.com>
Wed, 18 Dec 2024 19:40:52 +0000 (19:40 +0000)
committerMarc Zyngier <maz@kernel.org>
Fri, 20 Dec 2024 09:44:00 +0000 (09:44 +0000)
commit72db3d3fbaa77ba649201c9e9f9d1a54fa76b217
tree6ddaf1d829a20244a92d417a1ab1fea811474abftree
parentd0bd3e6570aee42766e7bd884734ae078667ea1ecommit | diff
KVM: arm64: Introduce __pkvm_host_unshare_guest()

In preparation for letting the host unmap pages from non-protected
guests, introduce a new hypercall implementing the host-unshare-guest
transition.

Tested-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20241218194059.3670226-12-qperret@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
arch/arm64/include/asm/kvm_asm.h diff | blob | history
arch/arm64/kvm/hyp/include/nvhe/mem_protect.h diff | blob | history
arch/arm64/kvm/hyp/include/nvhe/pkvm.h diff | blob | history
arch/arm64/kvm/hyp/nvhe/hyp-main.c diff | blob | history
arch/arm64/kvm/hyp/nvhe/mem_protect.c diff | blob | history
arch/arm64/kvm/hyp/nvhe/pkvm.c diff | blob | history
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