[PATCH v5 01/18] s390x: Use constant for ESA PSW address

[Janosch Frank <frankja@linux.ibm.com>]

Lets make it a bit more clear that we're extracting the 31 bit address
from the short psw.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
---
 hw/s390x/ipl.c     | 2 +-
 target/s390x/cpu.c | 4 ++--
 target/s390x/cpu.h | 1 +
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c
index 7773499d7f..42e21e7a6a 100644
--- a/hw/s390x/ipl.c
+++ b/hw/s390x/ipl.c
@@ -179,7 +179,7 @@ static void s390_ipl_realize(DeviceState *dev, Error **errp)
                 /* if not Linux load the address of the (short) IPL PSW */
                 ipl_psw = rom_ptr(4, 4);
                 if (ipl_psw) {
-                    pentry = be32_to_cpu(*ipl_psw) & 0x7fffffffUL;
+                    pentry = be32_to_cpu(*ipl_psw) & PSW_MASK_ESA_ADDR;
                 } else {
                     error_setg(&err, "Could not get IPL PSW");
                     goto error;
diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index 8da1905485..43360912a0 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -78,13 +78,13 @@ static void s390_cpu_load_normal(CPUState *s)
     S390CPU *cpu = S390_CPU(s);
     uint64_t spsw = ldq_phys(s->as, 0);
 
-    cpu->env.psw.mask = spsw & 0xffffffff80000000ULL;
+    cpu->env.psw.mask = spsw & PSW_MASK_ESA_MASK;
     /*
      * Invert short psw indication, so SIE will report a specification
      * exception if it was not set.
      */
     cpu->env.psw.mask ^= PSW_MASK_SHORTPSW;
-    cpu->env.psw.addr = spsw & 0x7fffffffULL;
+    cpu->env.psw.addr = spsw & PSW_MASK_ESA_ADDR;
 
     s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
 }
diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h
index 8a557fd8d1..74e66fe0c2 100644
--- a/target/s390x/cpu.h
+++ b/target/s390x/cpu.h
@@ -277,6 +277,7 @@ extern const VMStateDescription vmstate_s390_cpu;
 #define PSW_MASK_64             0x0000000100000000ULL
 #define PSW_MASK_32             0x0000000080000000ULL
 #define PSW_MASK_ESA_ADDR       0x000000007fffffffULL
+#define PSW_MASK_ESA_MASK       0xffffffff80000000ULL
 
 #undef PSW_ASC_PRIMARY
 #undef PSW_ASC_ACCREG
-- 
2.20.1