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| author | Vladimir Murzin <vladimir.murzin@arm.com> | 2022-05-20 13:38:44 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-05-20 21:18:09 +0100 |
| commit | 324cc0969b7caefb98ceb411b5ffe2e8bd6f5198 (patch) | |
| tree | 5596a06a6b426a6bc096c055b6e0369c62eba34f | |
| parent | 4639b72f61a3d4ca48a2af1b0510584d633b8de1 (diff) | |
| download | kvmtool-324cc0969b7caefb98ceb411b5ffe2e8bd6f5198.tar.gz | |
aarch64: Give up with MTE for AArch32 guest
KVM doesn't support combination of MTE and AArch32 guest, so do not
even try.
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Tested-by: Alexandru Elisei <alexandru.elisei@arm.com>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Link: https://lore.kernel.org/r/20220520123844.127733-1-vladimir.murzin@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | arm/aarch64/kvm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arm/aarch64/kvm.c b/arm/aarch64/kvm.c index 1b992dd5..f3fe854e 100644 --- a/arm/aarch64/kvm.c +++ b/arm/aarch64/kvm.c @@ -120,6 +120,11 @@ void kvm__arch_enable_mte(struct kvm *kvm) .cap = KVM_CAP_ARM_MTE, }; + if (kvm->cfg.arch.aarch32_guest) { + pr_debug("MTE is incompatible with AArch32"); + return; + } + if (kvm->cfg.arch.mte_disabled) { pr_debug("MTE disabled by user"); return; |