target/ppc: books: Machine Check exception cleanup

powerpc_excp_books is BookS only, so remove 40x and BookE code.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220124184605.999353-4-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index 161b207bc7b850856b5a39df0462a0aa6ddb73f7..be8c64a0cde9d5bd7774a138c3d56759bece361a 100644 (file)
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -632,23 +632,6 @@ static void powerpc_excp_books(PowerPCCPU *cpu, int excp)
         /* machine check exceptions don't have ME set */
         new_msr &= ~((target_ulong)1 << MSR_ME);
 
-        /* XXX: should also have something loaded in DAR / DSISR */
-        switch (excp_model) {
-        case POWERPC_EXCP_40x:
-            srr0 = SPR_40x_SRR2;
-            srr1 = SPR_40x_SRR3;
-            break;
-        case POWERPC_EXCP_BOOKE:
-            /* FIXME: choose one or the other based on CPU type */
-            srr0 = SPR_BOOKE_MCSRR0;
-            srr1 = SPR_BOOKE_MCSRR1;
-
-            env->spr[SPR_BOOKE_CSRR0] = env->nip;
-            env->spr[SPR_BOOKE_CSRR1] = msr;
-            break;
-        default:
-            break;
-        }
         break;
     case POWERPC_EXCP_DSI:       /* Data storage exception                   */
         trace_ppc_excp_dsi(env->spr[SPR_DSISR], env->spr[SPR_DAR]);