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| author | Catalin Marinas <catalin.marinas@arm.com> | 2022-11-04 02:10:36 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-11-29 10:26:07 +0100 |
| commit | 2dbf12ae132cc78048615cfa19c9be64baaf0ced (patch) | |
| tree | c7c9d14c12d3cefa8c891518e5d06465bce004c2 /lib/check_signature.c | |
| parent | arm64: mte: Fix/clarify the PG_mte_tagged semantics (diff) | |
| download | linux-2dbf12ae132cc78048615cfa19c9be64baaf0ced.tar.xz linux-2dbf12ae132cc78048615cfa19c9be64baaf0ced.zip | |
KVM: arm64: Simplify the sanitise_mte_tags() logic
Currently sanitise_mte_tags() checks if it's an online page before
attempting to sanitise the tags. Such detection should be done in the
caller via the VM_MTE_ALLOWED vma flag. Since kvm_set_spte_gfn() does
not have the vma, leave the page unmapped if not already tagged. Tag
initialisation will be done on a subsequent access fault in
user_mem_abort().
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
[pcc@google.com: fix the page initializer]
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Peter Collingbourne <pcc@google.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221104011041.290951-4-pcc@google.com
Diffstat (limited to 'lib/check_signature.c')
0 files changed, 0 insertions, 0 deletions