hw/arm/virt: Add board property to enable EL2
Add a board level property to the virt board which will enable EL2 on the CPU if the user asks for it. The default is not to provide EL2. If EL2 is enabled then we will use SMC as our PSCI conduit, and report the virtualization support in the GICv3 device tree node and the ACPI tables. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NAndrew Jones <drjones@redhat.com> Reviewed-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1483977924-14522-19-git-send-email-peter.maydell@linaro.org
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