[PATCH] target/ppc: powerpc_excp: Guard ALIGNMENT interrupt with CONFIG_TCG

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

We cannot have TCG code in powerpc_excp because the function is called
from kvm-only code via ppc_cpu_do_interrupt:

 ../target/ppc/excp_helper.c:463:29: error: implicit declaration of
 function ‘cpu_ldl_code’ [-Werror=implicit-function-declaration]

Fortunately, the Alignment interrupt is not among the ones dispatched
from kvm-only code, so we can keep it out of the disable-tcg build for
now.

Fixes: 336e91f853 ("target/ppc: Move SPR_DSISR setting to powerpc_excp")
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>

---

Perhaps we could make powerpc_excp TCG only and have a separate
function that only knows the two interrupts that we use with KVM
(Program, Machine check). But for now this fix will do, I think.
---
 target/ppc/excp_helper.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index 17607adbe4..dcf22440cc 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -453,6 +453,7 @@ static inline void powerpc_excp(PowerPCCPU *cpu, int excp_model, int excp)
         }
         break;
     }
+#ifdef CONFIG_TCG
     case POWERPC_EXCP_ALIGN:     /* Alignment exception                      */
         /*
          * Get rS/rD and rA from faulting opcode.
@@ -464,6 +465,7 @@ static inline void powerpc_excp(PowerPCCPU *cpu, int excp_model, int excp)
             env->spr[SPR_DSISR] |= (insn & 0x03FF0000) >> 16;
         }
         break;
+#endif
     case POWERPC_EXCP_PROGRAM:   /* Program exception                        */
         switch (env->error_code & ~0xF) {
         case POWERPC_EXCP_FP:
-- 
2.33.1