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authorDavid Gibson <david@gibson.dropbear.id.au>2018-06-14 16:33:58 +1000
committerDavid Gibson <david@gibson.dropbear.id.au>2018-06-21 21:22:53 +1000
commitad99d04c76debb0d60c0bbb5d4f6ebb3509ddc91 (patch)
tree480f8cb94e2d7f38fb7d6a1cdf048cd629bbf4d8 /linux-user
parentbb7ab95c96756663cf76914b171971d9582f828d (diff)
target/ppc: Allow cpu compatiblity checks based on type, not instance
ppc_check_compat() is used in a number of places to check if a cpu object supports a certain compatiblity mode, subject to various constraints. It takes a PowerPCCPU *, however it really only depends on the cpu's class. We have upcoming cases where it would be useful to make compatibility checks before we fully instantiate the cpu objects. ppc_type_check_compat() will now make an equivalent check, but based on a CPU's QOM typename instead of an instantiated CPU object. We make use of the new interface in several places in spapr, where we're essentially making a global check, rather than one specific to a particular cpu. This avoids some ugly uses of first_cpu to grab a "representative" instance. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Reviewed-by: Cédric Le Goater <clg@kaod.org>
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