[Qemu-devel] [PATCH RFC 4/4] target-ppc: flush tlb from all the cpu

[Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>]

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
 cputlb.c                | 15 +++++++++++++++
 include/exec/exec-all.h |  2 ++
 target-ppc/mmu-hash64.c |  2 +-
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/cputlb.c b/cputlb.c
index 64faf47..17ff58e 100644
--- a/cputlb.c
+++ b/cputlb.c
@@ -123,6 +123,21 @@ void tlb_flush(CPUState *cpu, int flush_global)
     }
 }
 
+static void tlb_flush_all_async_work(CPUState *cpu, void *opaque)
+{
+    tlb_flush_nocheck(cpu, GPOINTER_TO_INT(opaque));
+}
+
+void tlb_flush_all(CPUState *cpu, int flush_global)
+{
+    CPUState *c;
+
+    CPU_FOREACH(c) {
+        async_run_on_cpu(c, tlb_flush_all_async_work,
+                         GUINT_TO_POINTER(flush_global));
+    }
+}
+
 static void tlb_flush_by_mmuidx_async_work(CPUState *cpu, void *mmu_bitmask)
 {
     CPUArchState *env = cpu->env_ptr;
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index e9f3bcf..55c344b 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -116,6 +116,8 @@ void tlb_flush_page(CPUState *cpu, target_ulong addr);
  * TLB entries, and the argument is ignored.
  */
 void tlb_flush(CPUState *cpu, int flush_global);
+void tlb_flush_all(CPUState *cpu, int flush_global);
+
 /**
  * tlb_flush_page_by_mmuidx:
  * @cpu: CPU whose TLB should be flushed
diff --git a/target-ppc/mmu-hash64.c b/target-ppc/mmu-hash64.c
index 8118143..d852c21 100644
--- a/target-ppc/mmu-hash64.c
+++ b/target-ppc/mmu-hash64.c
@@ -912,7 +912,7 @@ void ppc_hash64_tlb_flush_hpte(PowerPCCPU *cpu,
      * invalidate, and we still don't have a tlb_flush_mask(env, n,
      * mask) in QEMU, we just invalidate all TLBs
      */
-    tlb_flush(CPU(cpu), 1);
+    tlb_flush_all(CPU(cpu), 1);
 }
 
 void ppc_hash64_update_rmls(CPUPPCState *env)
-- 
2.7.4