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[Qemu-devel] [PULL 06/30] target-sparc: on UA2005 don't deliver Interrup


From: Artyom Tarasenko
Subject: [Qemu-devel] [PULL 06/30] target-sparc: on UA2005 don't deliver Interrupt_level_n IRQs in hypervisor mode
Date: Wed, 18 Jan 2017 23:38:19 +0100

As described in Chapter 5.7.6 of the UltraSPARC Architecture 2005,
outstanding disrupting exceptions that are destined for privileged mode can only
cause a trap when the virtual processor is in nonprivileged or privileged mode 
and
PSTATE.ie = 1. At all other times, they are held pending.

Signed-off-by: Artyom Tarasenko <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
---
 target/sparc/cpu.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/target/sparc/cpu.h b/target/sparc/cpu.h
index f65d8b5..21fe0d1 100644
--- a/target/sparc/cpu.h
+++ b/target/sparc/cpu.h
@@ -736,8 +736,9 @@ static inline int cpu_interrupts_enabled(CPUSPARCState 
*env1)
     if (env1->psret != 0)
         return 1;
 #else
-    if (env1->pstate & PS_IE)
+    if ((env1->pstate & PS_IE) && !cpu_hypervisor_mode(env1)) {
         return 1;
+    }
 #endif
 
     return 0;
-- 
2.7.2




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