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-rw-r--r--hw/s390x/s390-pci-inst.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c
index d9e1e29f1e..e230293998 100644
--- a/hw/s390x/s390-pci-inst.c
+++ b/hw/s390x/s390-pci-inst.c
@@ -755,7 +755,7 @@ int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr,
int i;
uint32_t fh;
uint8_t pcias;
- uint8_t len;
+ uint16_t len;
uint8_t buffer[128];
if (env->psw.mask & PSW_MASK_PSTATE) {
@@ -765,7 +765,7 @@ int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr,
fh = env->regs[r1] >> 32;
pcias = (env->regs[r1] >> 16) & 0xf;
- len = env->regs[r1] & 0xff;
+ len = env->regs[r1] & 0x1fff;
offset = env->regs[r3];
if (!(fh & FH_MASK_ENABLE)) {