From d453d103831c966e7920f146eb3416e43b588f89 Mon Sep 17 00:00:00 2001 From: Aurelien Jarno Date: Sat, 13 Jun 2015 00:45:55 +0200 Subject: 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 Signed-off-by: Alexander Graf --- target-s390x/cpu.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'target-s390x/cpu.h') 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 -- cgit v1.2.3