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[v2,7/8] target/ppc: 74xx: System Reset interrupt cleanup

Message ID 20220127201116.1154733-8-farosas@linux.ibm.com
State New
Headers show
Series target/ppc: powerpc_excp improvements [74xx] (5/n) | expand

Commit Message

Fabiano Rosas Jan. 27, 2022, 8:11 p.m. UTC 
The whole power saving states logic seems to be dependent on HV mode,
which don't exist for 74xx so I'm removing it all and leaving the
abort message.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
---
 target/ppc/excp_helper.c | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)
diff mbox series

Patch

diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index 396e25ed35..b7921c0956 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -703,23 +703,9 @@  static void powerpc_excp_74xx(PowerPCCPU *cpu, int excp)
     case POWERPC_EXCP_DECR:      /* Decrementer exception                    */
         break;
     case POWERPC_EXCP_RESET:     /* System reset exception                   */
-        /* A power-saving exception sets ME, otherwise it is unchanged */
         if (msr_pow) {
-            /* indicate that we resumed from power save mode */
-            msr |= 0x10000;
-            new_msr |= ((target_ulong)1 << MSR_ME);
-        }
-        if (env->msr_mask & MSR_HVB) {
-            /*
-             * ISA specifies HV, but can be delivered to guest with HV
-             * clear (e.g., see FWNMI in PAPR, NMI injection in QEMU).
-             */
-            new_msr |= (target_ulong)MSR_HVB;
-        } else {
-            if (msr_pow) {
-                cpu_abort(cs, "Trying to deliver power-saving system reset "
-                          "exception %d with no HV support\n", excp);
-            }
+            cpu_abort(cs, "Trying to deliver power-saving system reset "
+                      "exception %d with no HV support\n", excp);
         }
         break;
     case POWERPC_EXCP_TRACE:     /* Trace exception                          */