[PATCH 4/8] target/ppc: 74xx: External interrupt cleanup

[Fabiano Rosas <farosas@linux.ibm.com>]

The 74xx don't have MSR_HV so all the LPES0 logic can be removed.

Also remove the BookE IRQ code.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
---
 target/ppc/excp_helper.c | 38 --------------------------------------
 1 file changed, 38 deletions(-)

diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index 0d8c66b98f..b9a1d7ae7e 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -555,7 +555,6 @@ static void powerpc_excp_74xx(PowerPCCPU *cpu, int excp)
 {
     CPUState *cs = CPU(cpu);
     CPUPPCState *env = &cpu->env;
-    int excp_model = env->excp_model;
     target_ulong msr, new_msr, vector;
     int srr0, srr1, lev = -1;
 
@@ -625,44 +624,7 @@ static void powerpc_excp_74xx(PowerPCCPU *cpu, int excp)
         msr |= env->error_code;
         break;
     case POWERPC_EXCP_EXTERNAL:  /* External input                           */
-    {
-        bool lpes0;
-
-        cs = CPU(cpu);
-
-        /*
-         * Exception targeting modifiers
-         *
-         * LPES0 is supported on POWER7/8/9
-         * LPES1 is not supported (old iSeries mode)
-         *
-         * On anything else, we behave as if LPES0 is 1
-         * (externals don't alter MSR:HV)
-         */
-#if defined(TARGET_PPC64)
-        if (excp_model == POWERPC_EXCP_POWER7 ||
-            excp_model == POWERPC_EXCP_POWER8 ||
-            excp_model == POWERPC_EXCP_POWER9 ||
-            excp_model == POWERPC_EXCP_POWER10) {
-            lpes0 = !!(env->spr[SPR_LPCR] & LPCR_LPES0);
-        } else
-#endif /* defined(TARGET_PPC64) */
-        {
-            lpes0 = true;
-        }
-
-        if (!lpes0) {
-            new_msr |= (target_ulong)MSR_HVB;
-            new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
-            srr0 = SPR_HSRR0;
-            srr1 = SPR_HSRR1;
-        }
-        if (env->mpic_proxy) {
-            /* IACK the IRQ on delivery */
-            env->spr[SPR_BOOKE_EPR] = ldl_phys(cs->as, env->mpic_iack);
-        }
         break;
-    }
     case POWERPC_EXCP_ALIGN:     /* Alignment exception                      */
         /* Get rS/rD and rA from faulting opcode */
         /*
-- 
2.34.1