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spapr: allocate the ICPState object from under sPAPRCPUCore

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Today, all the ICPs are created before the CPUs, stored in an array
under the sPAPR machine and linked to the CPU when the core threads
are realized. This modeling brings some complexity when a lookup in
the array is required and it can be simplified by allocating the ICPs
when the CPUs are.

This is the purpose of this proposal which introduces a new 'icp_type'
field under the machine and creates the ICP objects of the right type
(KVM or not) before the PowerPCCPU object are.

This change allows more cleanups : the removal of the icps array under
the sPAPR machine and the removal of the xics_get_cpu_index_by_dt_id()
helper.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2017-04-03 09:45:58 +02:00 • committed by David Gibson
parent 06747ba6d4
commit 5bc8d26de2
5 changed files with 29 additions and 51 deletions
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2
include/hw/ppc/spapr.h
View file

@ -109,7 +109,7 @@ struct sPAPRMachineState {
MemoryHotplugState hotplug_memory;
uint32_t nr_servers;
ICPState *icps;
const char *icp_type;
};
#define H_SUCCESS 0

2
include/hw/ppc/xics.h
View file

@ -172,8 +172,6 @@ void xics_cpu_setup(XICSFabric *xi, PowerPCCPU *cpu, ICPState *icp);
void xics_cpu_destroy(XICSFabric *xi, PowerPCCPU *cpu);
/* Internal XICS interfaces */
int xics_get_cpu_index_by_dt_id(int cpu_dt_id);
void icp_set_cppr(ICPState *icp, uint8_t cppr);
void icp_set_mfrr(ICPState *icp, uint8_t mfrr);
uint32_t icp_accept(ICPState *ss);