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[PATCH 6/8] target/ppc: 74xx: System Call exception cleanup


From: Fabiano Rosas
Subject: [PATCH 6/8] target/ppc: 74xx: System Call exception cleanup
Date: Wed, 26 Jan 2022 13:41:58 -0300

There is no sc 1 and no HV mode.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
---
 target/ppc/excp_helper.c | 21 ++-------------------
 1 file changed, 2 insertions(+), 19 deletions(-)

diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index bb17b65dc0..070c9779ad 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -556,7 +556,7 @@ static void powerpc_excp_74xx(PowerPCCPU *cpu, int excp)
     CPUState *cs = CPU(cpu);
     CPUPPCState *env = &cpu->env;
     target_ulong msr, new_msr, vector;
-    int srr0, srr1, lev = -1;
+    int srr0, srr1;
 
     if (excp <= POWERPC_EXCP_NONE || excp >= POWERPC_EXCP_NB) {
         cpu_abort(cs, "Invalid PowerPC exception %d. Aborting\n", excp);
@@ -669,30 +669,13 @@ static void powerpc_excp_74xx(PowerPCCPU *cpu, int excp)
         }
         break;
     case POWERPC_EXCP_SYSCALL:   /* System call exception                    */
-        lev = env->error_code;
-
-        if ((lev == 1) && cpu->vhyp) {
-            dump_hcall(env);
-        } else {
-            dump_syscall(env);
-        }
+        dump_syscall(env);
 
         /*
          * We need to correct the NIP which in this case is supposed
          * to point to the next instruction
          */
         env->nip += 4;
-
-        /* "PAPR mode" built-in hypercall emulation */
-        if ((lev == 1) && cpu->vhyp) {
-            PPCVirtualHypervisorClass *vhc =
-                PPC_VIRTUAL_HYPERVISOR_GET_CLASS(cpu->vhyp);
-            vhc->hypercall(cpu->vhyp, cpu);
-            return;
-        }
-        if (lev == 1) {
-            new_msr |= (target_ulong)MSR_HVB;
-        }
         break;
     case POWERPC_EXCP_FPU:       /* Floating-point unavailable exception     */
     case POWERPC_EXCP_DECR:      /* Decrementer exception                    */
-- 
2.34.1




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