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-rw-r--r--target-s390x/cpu.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h
index 0878ab6678..af9de5ed0b 100644
--- a/target-s390x/cpu.h
+++ b/target-s390x/cpu.h
@@ -400,6 +400,7 @@ void cpu_unlock(void);
typedef struct SubchDev SubchDev;
#ifndef CONFIG_USER_ONLY
+extern void io_subsystem_reset(void);
SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid,
uint16_t schid);
bool css_subch_visible(SubchDev *sch);