target-ppc: Add read and write of PPR SPR

Recent Linux kernels save and restore the PPR across exceptions
so we need to handle it.

Signed-off-by: Anton Blanchard <anton@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 6feb62abcd88e3c6c0be056d45c17c6f93685a53..021a31e2098ebb16bda432988f5950b5fa2f92c9 100644 (file)
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -7010,6 +7010,10 @@ static void init_proc_POWER7 (CPUPPCState *env)
                  &spr_read_generic, &spr_write_generic,
                  &spr_read_generic, &spr_write_generic,
                  0x00000000);
+    spr_register(env, SPR_PPR, "PPR",
+                 &spr_read_generic, &spr_write_generic,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
 #if !defined(CONFIG_USER_ONLY)
     env->slb_nr = 32;
 #endif