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xics,xics_kvm: Handle CPU unplug correctly

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XICS is setup for each CPU during initialization. Provide a routine
to undo the same when CPU is unplugged. While here, move ss->cs management
into xics from xics_kvm since there is nothing KVM specific in it.
Also ensure xics reset doesn't set irq for CPUs that are already unplugged.

This allows reboot of a VM that has undergone CPU hotplug and unplug
to work correctly.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Bharata B Rao 2016-05-12 09:18:20 +05:30 • committed by David Gibson
parent f1020c2c26
commit 4a4b344c7c
3 changed files with 19 additions and 4 deletions
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1
include/hw/ppc/xics.h
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@ -167,5 +167,6 @@ int xics_alloc_block(XICSState *icp, int src, int num, bool lsi, bool align,
void xics_free(XICSState *icp, int irq, int num);
void xics_cpu_setup(XICSState *icp, PowerPCCPU *cpu);
void xics_cpu_destroy(XICSState *icp, PowerPCCPU *cpu);
#endif /* __XICS_H__ */