KVM: arm64: Fix off-by-one in range_is_memory

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Hyp checks whether an address range only covers RAM by checking the
start/endpoints against a list of memblock_region structs. However,
the endpoint here is exclusive but internally is treated as inclusive.
Fix the off-by-one error that caused valid address ranges to be
rejected.

Cc: Quentin Perret <qperret@google.com>
Fixes: 90134ac9ca ("KVM: arm64: Protect the .hyp sections from the host")
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210728153232.1018911-2-dbrazdil@google.com

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David Brazdil 2021-07-28 15:32:31 +00:00 • committed by Marc Zyngier

parent 5cf17746b3

commit facee1be76

1 changed files with 1 additions and 1 deletions

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

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