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| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2026-10-07 08:35:36 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2026-10-09 09:20:12 +0100 |
| commit | 37d7ea3f81bbe61f1e895b6c87decadbfe8799eb (patch) | |
| tree | 24e9ed0d6bce9ecfef57f5737f31ede5e3af2ff9 /tools/perf/scripts/python/flamegraph.py | |
| parent | b44a8c32f0116aba0a934c3068628bacda3cd3a3 (diff) | |
KVM: arm64: Mandate VGIC v3 for pKVM VMs and Realms
pKVM does not trust the host. Realm VMs follow a similar trust model, with
the Realm Management Monitor owning the protected state instead of the
host. Add a helper to identify VMs that run under a host-distrusting
hypervisor.
Use this for blocking ioremap of vgic-v2 into stage2 and prevent creation
of VGIC other than v3.
Reviewed-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
Reviewed-by: Fuad Tabba <fuad.tabba@linux.dev>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Tested-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://patch.msgid.link/20261007073537.2454351-14-suzuki.poulose@arm.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
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