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target-sparc: on UA2005 don't deliver Interrupt_level_n IRQs in hypervisor mode

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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.

Backports commit 1a2aefae6627170fdee689b394a65f76080c068a from qemu
This commit is contained in:
Artyom Tarasenko 2018-03-01 20:39:18 -05:00 committed by Lioncash
parent f486053ae0
commit 926247a35e
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1 changed files with 2 additions and 1 deletions
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qemu/target-sparc/cpu.h
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@ -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;