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[PATCH 8/8] target/ppc: 405: System call exception cleanup


From: Fabiano Rosas
Subject: [PATCH 8/8] target/ppc: 405: System call exception cleanup
Date: Mon, 10 Jan 2022 15:15:46 -0300

There's no sc 1.

We also only used env->nip because of the vhyp code, so change to
'vector' now.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
---
 target/ppc/excp_helper.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index f7b9af5065..ab298d0d8f 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -398,7 +398,7 @@ static void powerpc_excp_40x(PowerPCCPU *cpu, int excp)
     CPUPPCState *env = &cpu->env;
     int excp_model = env->excp_model;
     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);
@@ -518,30 +518,13 @@ static void powerpc_excp_40x(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;
-        }
+        vector += 4;
         break;
     case POWERPC_EXCP_FPU:       /* Floating-point unavailable exception     */
     case POWERPC_EXCP_APU:       /* Auxiliary processor unavailable          */
-- 
2.33.1




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