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authorAurelien Jarno <aurelien@aurel32.net>2015-06-13 00:45:55 +0200
committerAlexander Graf <agraf@suse.de>2015-06-17 12:40:52 +0200
commitd453d103831c966e7920f146eb3416e43b588f89 (patch)
treebc1dc4fc0205f23ba9c986a41b6ddeda079fd8d1 /target-s390x/cpu.h
parenta8f931a931f8866abdb2f836d0fb6fb7d2606645 (diff)
target-s390x: add get_per_in_range function
This function checks if an address is in between the PER starting address and the PER ending address, taking care of a possible address range loop. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-s390x/cpu.h')
-rw-r--r--target-s390x/cpu.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h
index 7cc96e7ca3..d3137be4be 100644
--- a/target-s390x/cpu.h
+++ b/target-s390x/cpu.h
@@ -392,6 +392,17 @@ static inline uint8_t get_per_atmid(CPUS390XState *env)
((env->psw.mask & PSW_ASC_ACCREG)? (1 << 2) : 0);
}
+/* Check if an address is within the PER starting address and the PER
+ ending address. The address range might loop. */
+static inline bool get_per_in_range(CPUS390XState *env, uint64_t addr)
+{
+ if (env->cregs[10] <= env->cregs[11]) {
+ return env->cregs[10] <= addr && addr <= env->cregs[11];
+ } else {
+ return env->cregs[10] <= addr || addr <= env->cregs[11];
+ }
+}
+
#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