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Today, the ICPState array of the sPAPR machine is indexed with 'cpu_index' of the CPUState. This numbering of CPUs is internal to QEMU and the guest only knows about what is exposed in the device tree, that is the 'cpu_dt_id'. This is why sPAPR uses the helper xics_get_cpu_index_by_dt_id() to do the mapping in a couple of places. To provide a more generic XICS layer, we need to abstract the IRQ 'server' number and remove any assumption made on its nature. It should not be used as a 'cpu_index' for lookups like xics_cpu_setup() and xics_cpu_destroy() do. To reach that goal, we choose to introduce a generic 'intc' backlink under PowerPCCPU, and let the machine core init routine do the ICPState lookup. The resulting object is passed on to xics_cpu_setup() which does the store under PowerPCCPU. The IRQ 'server' number in XICS is now generic. sPAPR uses 'cpu_dt_id' and PowerNV will use 'PIR' number. This also has the benefit of simplifying the sPAPR hcall routines which do not need to do any ICPState lookups anymore. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> |
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| .. | ||
| translate | ||
| arch_dump.c | ||
| compat.c | ||
| cpu-models.c | ||
| cpu-models.h | ||
| cpu-qom.h | ||
| cpu.c | ||
| cpu.h | ||
| dfp_helper.c | ||
| excp_helper.c | ||
| fpu_helper.c | ||
| gdbstub.c | ||
| helper.h | ||
| helper_regs.h | ||
| int_helper.c | ||
| internal.h | ||
| kvm-stub.c | ||
| kvm.c | ||
| kvm_ppc.h | ||
| machine.c | ||
| Makefile.objs | ||
| mem_helper.c | ||
| mfrom_table.c | ||
| mfrom_table_gen.c | ||
| misc_helper.c | ||
| mmu-book3s-v3.c | ||
| mmu-book3s-v3.h | ||
| mmu-hash32.c | ||
| mmu-hash32.h | ||
| mmu-hash64.c | ||
| mmu-hash64.h | ||
| mmu_helper.c | ||
| monitor.c | ||
| STATUS | ||
| timebase_helper.c | ||
| trace-events | ||
| translate.c | ||
| translate_init.c | ||
| user_only_helper.c | ||