KVM: arm64: Consolidate allowed and restricted VM feature checks

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The definitions for features allowed and allowed with
restrictions for protected guests, which are based on feature
registers, were defined and checked for separately, even though
they are handled in the same way. This could result in missing
checks for certain features, e.g., pointer authentication,
causing traps for allowed features.

Consolidate the definitions into one. Use that new definition to
construct the guest view of the feature registers for
consistency.

Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20241216105057.579031-2-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>

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This commit is contained in:

Marc Zyngier 2024-12-20 11:33:05 +00:00

parent 78d4f34e21

commit 2589dbd727

3 changed files with 26 additions and 43 deletions

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55

arch/arm64/kvm/hyp/include/nvhe/fixed_config.h

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8

arch/arm64/kvm/hyp/nvhe/pkvm.c

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6

arch/arm64/kvm/hyp/nvhe/sys_regs.c

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