KVM: arm64: pkvm: Handle GICv3 traps as required
Forward accesses to the ICV_*SGI*_EL1 registers to EL1, and emulate ICV_SRE_EL1 by returning a fixed value. This should be enough to support GICv3 in a protected guest. Signed-off-by:Marc Zyngier <maz@kernel.org> Reviewed-by:
Fuad Tabba <tabba@google.com> Tested-by:
Fuad Tabba <tabba@google.com> Link: https://lore.kernel.org/r/20211013120346.2926621-7-maz@kernel.org
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