From 68c2dd70068fe82a1989d0d5b70a1ab400bde19a Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Fri, 4 Jan 2013 11:21:04 +0100 Subject: PPC: Bring EPR support closer to reality We already used to support the external proxy facility of FSL MPICs, but only implemented it halfway correctly. This patch adds support for * dynamic enablement of the EPR facility * interrupt acknowledgement only when the interrupt is delivered This way the implementation now is closer to real hardware. Signed-off-by: Alexander Graf --- target-ppc/excp_helper.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'target-ppc/excp_helper.c') diff --git a/target-ppc/excp_helper.c b/target-ppc/excp_helper.c index 41037a7e26..0a1ac86a42 100644 --- a/target-ppc/excp_helper.c +++ b/target-ppc/excp_helper.c @@ -178,6 +178,10 @@ static inline void powerpc_excp(PowerPCCPU *cpu, int excp_model, int excp) if (lpes0 == 1) { new_msr |= (target_ulong)MSR_HVB; } + if (env->mpic_proxy) { + /* IACK the IRQ on delivery */ + env->spr[SPR_BOOKE_EPR] = ldl_phys(env->mpic_iack); + } goto store_next; case POWERPC_EXCP_ALIGN: /* Alignment exception */ if (lpes1 == 0) { -- cgit v1.2.3