Patchwork [01/10] PPC: monitor: add ability to dump SLB entries

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Submitter Alexander Graf
Date Jan. 3, 2012, 3:08 p.m.
Message ID <1325603302-12412-2-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/134033/
State New
Headers show

Comments

Alexander Graf - Jan. 3, 2012, 3:08 p.m.
From: Nishanth Aravamudan <nacc@us.ibm.com>

When run with a PPC Book3S (server) CPU Currently 'info tlb' in the
qemu monitor reports "dump_mmu: unimplemented".  However, during
bringup work, it can be quite handy to have the SLB entries, which are
available in the CPUPPCState.  This patch adds an implementation of
info tlb for book3s, which dumps the SLB.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 target-ppc/helper.c |   28 ++++++++++++++++++++++++++++
 1 files changed, 28 insertions(+), 0 deletions(-)

Patch

diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index 137a494..5847453 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -1545,12 +1545,40 @@  static void mmubooke206_dump_mmu(FILE *f, fprintf_function cpu_fprintf,
     }
 }
 
+#if defined(TARGET_PPC64)
+static void mmubooks_dump_mmu(FILE *f, fprintf_function cpu_fprintf,
+                              CPUState *env)
+{
+    int i;
+    uint64_t slbe, slbv;
+
+    cpu_synchronize_state(env);
+
+    cpu_fprintf(f, "SLB\tESID\t\t\tVSID\n");
+    for (i = 0; i < env->slb_nr; i++) {
+        slbe = env->slb[i].esid;
+        slbv = env->slb[i].vsid;
+        if (slbe == 0 && slbv == 0) {
+            continue;
+        }
+        cpu_fprintf(f, "%d\t0x%016" PRIx64 "\t0x%016" PRIx64 "\n",
+                    i, slbe, slbv);
+    }
+}
+#endif
+
 void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUState *env)
 {
     switch (env->mmu_model) {
     case POWERPC_MMU_BOOKE206:
         mmubooke206_dump_mmu(f, cpu_fprintf, env);
         break;
+#if defined(TARGET_PPC64)
+    case POWERPC_MMU_64B:
+    case POWERPC_MMU_2_06:
+        mmubooks_dump_mmu(f, cpu_fprintf, env);
+        break;
+#endif
     default:
         cpu_fprintf(f, "%s: unimplemented\n", __func__);
     }