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| author | Will Deacon <will@kernel.org> | 2026-03-30 15:48:32 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2026-03-30 16:58:09 +0100 |
| commit | 8800dbf6614aad1013ea5f348520a2ce5ba4b6c8 (patch) | |
| tree | 8a1e58652a70ffedf4c12e4124a315e638142498 /include/uapi | |
| parent | 246c976c370de9380660e2bb641758dc0aae8c5c (diff) | |
| download | lwn-8800dbf6614aad1013ea5f348520a2ce5ba4b6c8.tar.gz lwn-8800dbf6614aad1013ea5f348520a2ce5ba4b6c8.zip | |
KVM: arm64: Allow userspace to create protected VMs when pKVM is enabled
Introduce a new VM type for KVM/arm64 to allow userspace to request the
creation of a "protected VM" when the host has booted with pKVM enabled.
For now, this feature results in a taint on first use as many aspects of
a protected VM are not yet protected!
Tested-by: Fuad Tabba <tabba@google.com>
Tested-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://patch.msgid.link/20260330144841.26181-32-will@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/kvm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 80364d4dbebb..073b2bcaf560 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -703,6 +703,11 @@ struct kvm_enable_cap { #define KVM_VM_TYPE_ARM_IPA_SIZE_MASK 0xffULL #define KVM_VM_TYPE_ARM_IPA_SIZE(x) \ ((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK) + +#define KVM_VM_TYPE_ARM_PROTECTED (1UL << 31) +#define KVM_VM_TYPE_ARM_MASK (KVM_VM_TYPE_ARM_IPA_SIZE_MASK | \ + KVM_VM_TYPE_ARM_PROTECTED) + /* * ioctls for /dev/kvm fds: */ |