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target/ppc: Add msgsnd/p and DPDES SMT support

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Doorbells in SMT need to coordinate msgsnd/msgclr and DPDES access from
multiple threads that affect the same state.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Nicholas Piggin 2023-06-22 19:33:53 +10:00 • committed by Cédric Le Goater
parent c5d98a7b3d
commit d24e80b2ae
5 changed files with 78 additions and 11 deletions
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6
hw/ppc/ppc.c
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@ -1436,6 +1436,12 @@ int ppc_cpu_pir(PowerPCCPU *cpu)
return env->spr_cb[SPR_PIR].default_value;
}
int ppc_cpu_tir(PowerPCCPU *cpu)
{
CPUPPCState *env = &cpu->env;
return env->spr_cb[SPR_TIR].default_value;
}
PowerPCCPU *ppc_get_vcpu_by_pir(int pir)
{
CPUState *cs;