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-rw-r--r--target-s390x/cpu.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h
index c18d81b..7cc96e7 100644
--- a/target-s390x/cpu.h
+++ b/target-s390x/cpu.h
@@ -380,6 +380,18 @@ static inline int get_ilen(uint8_t opc)
#define PER_CODE_EVENT_STORE_REAL 0x0800
#define PER_CODE_EVENT_NULLIFICATION 0x0100
+/* Compute the ATMID field that is stored in the per_perc_atmid lowcore
+ entry when a PER exception is triggered. */
+static inline uint8_t get_per_atmid(CPUS390XState *env)
+{
+ return ((env->psw.mask & PSW_MASK_64) ? (1 << 7) : 0) |
+ ( (1 << 6) ) |
+ ((env->psw.mask & PSW_MASK_32) ? (1 << 5) : 0) |
+ ((env->psw.mask & PSW_MASK_DAT)? (1 << 4) : 0) |
+ ((env->psw.mask & PSW_ASC_SECONDARY)? (1 << 3) : 0) |
+ ((env->psw.mask & PSW_ASC_ACCREG)? (1 << 2) : 0);
+}
+
#ifndef CONFIG_USER_ONLY
/* In several cases of runtime exceptions, we havn't recorded the true
instruction length. Use these codes when raising exceptions in order
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