KVM: arm64: Add build-time sanity checks for flags

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Flags are great, but flags can also be dangerous: it is easy
to encode a flag that is bigger than its container (unless the
container is a u64), and it is easy to construct a flag value
that doesn't fit in the mask that is associated with it.

Add a couple of build-time sanity checks that ensure we catch
these two cases.

Reviewed-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>

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Marc Zyngier 2022-05-28 12:38:26 +01:00

parent e19f2c6cd1

commit 5a3984f4ec

1 changed files with 16 additions and 0 deletions

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arch/arm64/include/asm/kvm_host.h

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