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pci/quirk: Populate device tree for AST2400 VGA
Adding these properties enables the kernel to function in the same way that it would if it could no longer access BMC configuration registers through a backdoor, which may become the default in future. The comments describe how isolating the host from the BMC could be achieved in skiboot, assuming all kernels that the system boots support this. Isolating the BMC and the host from each other is important if they are owned by different parties; for example, a cloud provider renting machines "bare metal". Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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