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[Qemu-devel] [PULL 2.0 13/15] PPC: Only enter MSR_POW when no interrupts


From: Alexander Graf
Subject: [Qemu-devel] [PULL 2.0 13/15] PPC: Only enter MSR_POW when no interrupts pending
Date: Tue, 8 Apr 2014 11:31:52 +0200

We were entering the power saving state even when interrupts (like an
external interrupt or a decrementer interrupt) were still in flight.

In case we find a pending interrupt, don't enter power saving state.

Signed-off-by: Alexander Graf <address@hidden>
Reviewed-by: Tom Musta <address@hidden>
---
 target-ppc/helper_regs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target-ppc/helper_regs.h b/target-ppc/helper_regs.h
index f7ec9c2..271fddf 100644
--- a/target-ppc/helper_regs.h
+++ b/target-ppc/helper_regs.h
@@ -101,7 +101,7 @@ static inline int hreg_store_msr(CPUPPCState *env, 
target_ulong value,
     hreg_compute_hflags(env);
 #if !defined(CONFIG_USER_ONLY)
     if (unlikely(msr_pow == 1)) {
-        if ((*env->check_pow)(env)) {
+        if (!env->pending_interrupts && (*env->check_pow)(env)) {
             cs->halted = 1;
             excp = EXCP_HALTED;
         }
-- 
1.8.1.4




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