From: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Date: Mon, 15 May 2017 08:35:09 +0000 (+0530)
Subject: target/ppc: reset reservation in do_rfi()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a8b73734219802e226a5444ffd84d07a085edd28;p=qemu.git

target/ppc: reset reservation in do_rfi()

For transitioning back to userspace after the interrupt.

Suggested-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---

diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index a6bcb47aa2..9cb2123187 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -995,6 +995,9 @@ static inline void do_rfi(CPUPPCState *env, target_ulong nip, target_ulong msr)
      */
     cs->interrupt_request |= CPU_INTERRUPT_EXITTB;
 
+    /* Reset the reservation */
+    env->reserve_addr = -1;
+
     /* Context synchronizing: check if TCG TLB needs flush */
     check_tlb_flush(env, false);
 }